LCD Test ribbon cable - T-Mobile Samsung Galaxy S 5

Hey, I got a t-mobile S5 and the screen is black. Everything else works fine, I can unlock the phone which indicates a working digitizer but the LCD remains black. I tried to heat of the main board to reflow the solder but it didn't work. I have a LCD digitizer combo on the way but before I tear out the original LCD, i was wondering if anyone in Orange County, CA has a test ribbon cable I could use before I start the replacement. Thank you.

Related

Touchscreen cracked LCD is fine

Hey Guys
I finally managed to crack my wizard (dropping it out of everywhere )
The prob is that I cracked only the touchscreen not the LCD.
The touchscreen seems to get the touches but it understands them differently.
For Ex:I push the Time on HTC HOME It opens the soft or left key dependent on where I'm pressing.
I found a touchscreen on e-bay without an LCD for 13 bucks so I ordered it but I wanted to know if anyone else had any luck with same situation
Aldo
Same case yesterday
I also drooped y phone yesterday and I have a crack line running across the screen but the touch screen is working ok for me. I saw the eBay auctions about screen and no lcd but what if the lcd is the part that is broken ?
can we change that too ?
tkdsl said:
I also drooped y phone yesterday and I have a crack line running across the screen but the touch screen is working ok for me. I saw the eBay auctions about screen and no lcd but what if the lcd is the part that is broken ?
can we change that too ?[/QUOTE
I have several times replace LCD in a wizard. It was very difficult for me to replace the touchscreen so i take the complete set. It is not only te replace the touch layer, but you must alse do some soldering.
And if jou replace the screen, the flexcable must be propperly fit. Before i assembley al, i first check if screen en touch are oke.
Click to expand...
Click to collapse
sleurhut said:
tkdsl said:
I also drooped y phone yesterday and I have a crack line running across the screen but the touch screen is working ok for me. I saw the eBay auctions about screen and no lcd but what if the lcd is the part that is broken ?
can we change that too ?[/QUOTE
I have several times replace LCD in a wizard. It was very difficult for me to replace the touchscreen so i take the complete set. It is not only te replace the touch layer, but you must alse do some soldering.
And if jou replace the screen, the flexcable must be propperly fit. Before i assembley al, i first check if screen en touch are oke.
Click to expand...
Click to collapse
would this item work for me them EBAY
I am comfortable opening the phone to fix it, for some reason cannot find the right part,
thank you.
Click to expand...
Click to collapse
tkdsl said:
sleurhut said:
would this item work for me them EBAY
I am comfortable opening the phone to fix it, for some reason cannot find the right part,
thank you.
Click to expand...
Click to collapse
It seems to be. I did it on a wizard and i know the HTC 8125 is the same one with a different housing.
I remember this kind off LCD picture. There is a dissasembly guide but you need a torx 4, plastic openingstools and a very tiny X screwdriver.
I use this kind off opening tool [URL="http://www.mobielbereikbaar.nl/Product.aspx?naam=Nokia+SRT-6+Opening+Tool+Origineel[/URL]
Other
If you want, you can replace display.
Click to expand...
Click to collapse
were would I find the entire display to replace mine with , I only found the LCD on ebay for the about 41 dollars ?
I have the kit for the ipod repair not sure about the Trox 4 I will check today.
tkdsl said:
were would I find the entire display to replace mine with , I only found the LCD on ebay for the about 41 dollars ?
I have the kit for the ipod repair not sure about the Trox 4 I will check today.
Click to expand...
Click to collapse
It is Torx5 i see
But here something from Hong Kong
This is a LCD witch tochscreen.
This is great, I will get that one and that should cover all I have the instructions allready. thank you.
Replacement LCD
you should check WWW.HTCLCD.COM they have it for $39 with the tools and in the usa
Hi
I bought this touchscreen on e-bay from a power seller and It worked.
I can use the touch again in my device.
Rgds
belize2004 said:
you should check WWW.HTCLCD.COM they have it for $39 with the tools and in the usa
Click to expand...
Click to collapse
I got one from them.With instructions and tools!Worked fine.Install was easy
i have succesfully replaced the touch screen on my tmobile mda vario.
check that the ribbon cable is exactly the same as whats on your phone. the first touchscreen i got of ebay the ribbon cable was slightlly different and after assembling it didtn work, after getting another one with same ribbon cable, worked perfectly.
Note that you will have to solder the ribbon cable, a good soldering iron with a very fine tip will make it fairly easy. ribbon cable is very small so soldering can be a tad fidgity.
Ipod Repair
You might want to check out http://www.ipod-repair-guide.com for more information.
No need to buy the lcd seperate from the touchscreen and resistance weld the cables
veda_sticks said:
i have succesfully replaced the touch screen on my tmobile mda vario.
check that the ribbon cable is exactly the same as whats on your phone. the first touchscreen i got of ebay the ribbon cable was slightlly different and after assembling it didtn work, after getting another one with same ribbon cable, worked perfectly.
Note that you will have to solder the ribbon cable, a good soldering iron with a very fine tip will make it fairly easy. ribbon cable is very small so soldering can be a tad fidgity.
Click to expand...
Click to collapse
I'd just go ahead and get the lcd screen with the digitizer. That soldering won't work unlest you can resistance weld the lcd ribbon cable and digitizer cable together and its only about $30 bucks on ebay now for them both together. Then you just get the repair manual, open the phone, swap the screen out and just plug it in and it works.
Is it easy to just change the touchscreen? how to do it?
Hi,
I had the same problem few month ago, and at that time the LCD screen was broken, and I had to change it by myself (with no big problems).
now I have a similar problem but just the touch screen is broken, I see that the price of just the touch screen is much cheaper that the whole LCD screen, but my doubt is:
How can I install just the touchscreen on th LCD,
I heard that you have to solder it.. but how? and is it easy?
is someone of you knows how to do it please post the istructions...
Luca
ohh... sorry, I sow just now that someone already answered to this questions...
I didnt see that there was a second page of the thread
anyone knows hot to replace the Touchscreen ?
if there is a guide or pictures is the best!
thanks
seclimar said:
anyone knows hot to replace the Touchscreen ?
if there is a guide or pictures is the best!
thanks
Click to expand...
Click to collapse
I say if you are asking for instruction or pictures on how to replace a touch screen, you will not be able to do it yourself, it's a specialised techie job. I suggest replacement of the entire unit assembly - LCD+digitizer.
enigma is right.
Changing the digitizer is not an easy job. I recently had a "blind spot" in the middle of the digitizer, and I did not even think about changing it. Instead I obtained a LCD/digitizer unit from *bay for a bit above 20 Euros including postage (from China). Changing the LCD unit was done in 20 minutes all in all, and now my good old Wizard works fine again.
If you decide to buy a complete unit (I would really recommend this!), be shure to buy the right one, there are two types, one with a "gold ribbon", one with a "black ribbon". So, first you have to open your Wizard and look which type you need. Good luck.
htc housing
Hi guys, my trusty old wizard has finally fallen apart. the hain housing is craked even though the lcd and the phone itself is still in top condition. I am looking for a new housing so I can replace the old one and end up with a virtually new phone. Could someone point me to the right place please. I have been trawling the internet these last few days but because they have been out of production for that long, there does not appear to be any places I can get a housing to buy. Your help will be deeply appreciated.
Cheers.

LCD not functioning after DIY glass replacement

Just finished replacing my cracked glass / digitizer, but now my previously working LCD just shows vertical colored lines. I bought one of the glass / digitizer replacements from Ebay, which was a perfect match for the OEM piece. Since I was having trouble finding the thin double sided tape, I used black silicone adhesive to bond the LCD to the digitizer. When I plugged in LCD panel and turned the tablet on, all I get is vertical varying colored lines across the LCD. I've pressed the on /off switch for 10 seconds to reboot the device, but it still does the same thing. I've taken the ribbon cable off and on checking to see if was not properly seated, but it seems to be okay. Any ideas?
The ribbon cable had a 90 degree bend in it after it was removed... can that cause an internal cut in the cable itself? At least to me, it appears that the LCD is working, since the lines are bright in color and even change as you manipulate the digitizer... it just has no picture.
Thanks..
Killer95Stang said:
Just finished replacing my cracked glass / digitizer, but now my previously working LCD just shows vertical colored lines. I bought one of the glass / digitizer replacements from Ebay, which was a perfect match for the OEM piece. Since I was having trouble finding the thin double sided tape, I used black silicone adhesive to bond the LCD to the digitizer. When I plugged in LCD panel and turned the tablet on, all I get is vertical varying colored lines across the LCD. I've pressed the on /off switch for 10 seconds to reboot the device, but it still does the same thing. I've taken the ribbon cable off and on checking to see if was not properly seated, but it seems to be okay. Any ideas?
The ribbon cable had a 90 degree bend in it after it was removed... can that cause an internal cut in the cable itself? At least to me, it appears that the LCD is working, since the lines are bright in color and even change as you manipulate the digitizer... it just has no picture.
Thanks..
Click to expand...
Click to collapse
90 degree bends can cause one or more of the individual conductors to become broken. I've had it happen on hard drive cables, and one inside a sprinkler system once.
chamberc said:
90 degree bends can cause one or more of the individual conductors to become broken. I've had it happen on hard drive cables, and one inside a sprinkler system once.
Click to expand...
Click to collapse
Any way to actually test this? Can use a voltmeter type tester to check continuity from one side of each pin to the other? They are hair like in size, so not sure the standard tests are the same.
Thanks..
My DIY experience...
Hi,
How did you perform the screen replacement? I have tried and I have described it below.
It seem like there are a lot of people that has TF201s with broken screens, but very little information about how to DIY screen replacement, so I wanted to post my experience here.
The screen on my TF201 cracked (dropped on the floor - only the screen was damaged, the LCD and digitizer still worked) so I seached around the web to find ways to replace the screen - without luck
I did find instructions on how to open the device and I also found original glass/digitizer replacement parts on eBay originating from China at about $100 so I took the chance and ordererd a new screen. It arrived 2 weeks after and looked good.
With the instructions on how to disassemble the TF201, it was quickly open and the glass/digitizer/LCD is one subassembly connected to the mainboard with two flex cables - one for the LCD and one for the digitizer.
Next step is to power off the system internally. There is a small internal switch in the lower left corner that you should switch to the off position. The LCD and digitizer cables can now be disconnected from the mainboard. The connectors open easily by putting a nail under the white frame of the correctors and pulling the frame up and then pull out the flex cables. You now have the glass/digitizer/LCD separated from the mainboard.
The LCD has a few screws to hold it to the plastic frame - these should be removed at this step. Mine only has two screws mounted although there are room for more (bad assembly quality or a fix for screen bleeding???)
Now comes the hard part and the part where I failed! There is a plastic frame around the edges of the glass that you need to remove and mount on the new glass. This plastic part holds all the taps that keep the tablet together and it is taped to the glass with some VERY sticky tape!
I used a knife to cut between the plastic and the glass with the result that the glass broke in tiny pieces as I went around, but as I saw no other way I kept going... It might have been better to use a heat gun or a hairblower to heat up the glue before trying to remove it, bu I was worried that the LCD might be damaged by the heat.
The plastic frame has to be removed first to have access to the foam tape that is used to tape the LCD to the glass/digitizer. Once the plastic frame was off, I again used the knife to gently cut the foam tape (around 1 mm thick) all around the LCD screen so that this can be removed from the glass.
Here I might have made my second mistake. I was worried that I would cut too deep into the foam and hit the LCD screen, but the foam at the bottom of the screen is a little wider than the rest and as I tried to remove the screen I used too much force and might have damaged the LCD - the end result was that also the LCD was damaged in the process. The damage might also have been caused by me pressing too hard on the screen during the removal of the plastic frame (might actually be more likely as the glass was broken across the screen and the damage I was seing when I turned on the screen was following the same line).
Well, I got the LCD off the broken screen and though I had been successfull even thought it had taken a couple of hours to get there (I could not visually see that the LCD was damaged at this point). Then on to the assembly with the new screen/digitizer! I had some double sided tape that I used to tape the screen to the plastic, but desided to to a quick test before I fully assembled the unit and this turned out to be a good idea!
I mounted the LCD screen with just the screws and connected the flex cables back into the connectors (these can be a little tricky to get it, so just be patient and keep wiggling them in and close the latches). I enabled the power again and pressed the power botton and: DAMM - THE LCD IS BROKE!!!!
After wiglling a little with the LCD cable I was able to get a partial image, but it was evident that I had mishandled the LCD screen during the disassembly and I needed a new screen to gt my tablet working again - now I was glad that I did not glue the LCD to the glass, so that I needed both a new LCD and a new glass/digitizer!
Off to the web to seach for a replacement LCD screen... Hmm, lots of ebay listings for replacement LCDs, but none of them looked like the original I had, but when seaching for the partnumber on the LCD I took out (Hannstar HSD101PWW2 rev. 0-A00) I did find a few priced around $100
Before I started to spend more money on the device I wanted to check our if the digitizer was actually working, so I connected the tabled to my TV using the HDMI output to test...WHAT?? THE X-AXIS WAS REVERTED!!!
I double checked the flex cable connections, but everything was in order. I then compare my broken screen with the replacement part and noticed that the signal routing on the flex cable for the new part looked quite different than the original.
I emailed the company that sold me the screen and he replied back that they JUST heard that some other customer have had the same problem - there might be different versions for the digitizer used in the TF201 (perhaps depending on production time)!!!
He suggested that I tried a hard reboot and a system reset to default and I tried that without luck.
I also tried to find a 5 point screen calibration routine, but this does not seem to be supported.
Does anyone know of a way to revert the x axis by modifying a configuration file - and can that be done without rooting the device??
They did offer to refund the price of the screen if I shipped the screen back to them, but I will most likely damage the screen when trying to remove the plastic frame and it will cost me shipping the part back to China...
Did you test if the touch screen is actually working on your reworked unit (you can use the HDMI output as I did)?
Unless I get the screen issue resolved I most likely will get a TF700 instead of my broken prime - I really loved the prime for the 4 months I had it working...
ThomasKJ said:
Hi,
How did you perform the screen replacement? I have tried and I have described it below.
It seem like there are a lot of people that has TF201s with broken screens, but very little information about how to DIY screen replacement, so I wanted to post my experience here.
The screen on my TF201 cracked (dropped on the floor - only the screen was damaged, the LCD and digitizer still worked) so I seached around the web to find ways to replace the screen - without luck
I did find instructions on how to open the device and I also found original glass/digitizer replacement parts on eBay originating from China at about $100 so I took the chance and ordererd a new screen. It arrived 2 weeks after and looked good.
With the instructions on how to disassemble the TF201, it was quickly open and the glass/digitizer/LCD is one subassembly connected to the mainboard with two flex cables - one for the LCD and one for the digitizer.
Next step is to power off the system internally. There is a small internal switch in the lower left corner that you should switch to the off position. The LCD and digitizer cables can now be disconnected from the mainboard. The connectors open easily by putting a nail under the white frame of the correctors and pulling the frame up and then pull out the flex cables. You now have the glass/digitizer/LCD separated from the mainboard.
The LCD has a few screws to hold it to the plastic frame - these should be removed at this step. Mine only has two screws mounted although there are room for more (bad assembly quality or a fix for screen bleeding???)
Now comes the hard part and the part where I failed! There is a plastic frame around the edges of the glass that you need to remove and mount on the new glass. This plastic part holds all the taps that keep the tablet together and it is taped to the glass with some VERY sticky tape!
I used a knife to cut between the plastic and the glass with the result that the glass broke in tiny pieces as I went around, but as I saw no other way I kept going... It might have been better to use a heat gun or a hairblower to heat up the glue before trying to remove it, bu I was worried that the LCD might be damaged by the heat.
The plastic frame has to be removed first to have access to the foam tape that is used to tape the LCD to the glass/digitizer. Once the plastic frame was off, I again used the knife to gently cut the foam tape (around 1 mm thick) all around the LCD screen so that this can be removed from the glass.
Here I might have made my second mistake. I was worried that I would cut too deep into the foam and hit the LCD screen, but the foam at the bottom of the screen is a little wider than the rest and as I tried to remove the screen I used too much force and might have damaged the LCD - the end result was that also the LCD was damaged in the process. The damage might also have been caused by me pressing too hard on the screen during the removal of the plastic frame (might actually be more likely as the glass was broken across the screen and the damage I was seing when I turned on the screen was following the same line).
Well, I got the LCD off the broken screen and though I had been successfull even thought it had taken a couple of hours to get there (I could not visually see that the LCD was damaged at this point). Then on to the assembly with the new screen/digitizer! I had some double sided tape that I used to tape the screen to the plastic, but desided to to a quick test before I fully assembled the unit and this turned out to be a good idea!
I mounted the LCD screen with just the screws and connected the flex cables back into the connectors (these can be a little tricky to get it, so just be patient and keep wiggling them in and close the latches). I enabled the power again and pressed the power botton and: DAMM - THE LCD IS BROKE!!!!
After wiglling a little with the LCD cable I was able to get a partial image, but it was evident that I had mishandled the LCD screen during the disassembly and I needed a new screen to gt my tablet working again - now I was glad that I did not glue the LCD to the glass, so that I needed both a new LCD and a new glass/digitizer!
Off to the web to seach for a replacement LCD screen... Hmm, lots of ebay listings for replacement LCDs, but none of them looked like the original I had, but when seaching for the partnumber on the LCD I took out (Hannstar HSD101PWW2 rev. 0-A00) I did find a few priced around $100
Before I started to spend more money on the device I wanted to check our if the digitizer was actually working, so I connected the tabled to my TV using the HDMI output to test...WHAT?? THE X-AXIS WAS REVERTED!!!
I double checked the flex cable connections, but everything was in order. I then compare my broken screen with the replacement part and noticed that the signal routing on the flex cable for the new part looked quite different than the original.
I emailed the company that sold me the screen and he replied back that they JUST heard that some other customer have had the same problem - there might be different versions for the digitizer used in the TF201 (perhaps depending on production time)!!!
He suggested that I tried a hard reboot and a system reset to default and I tried that without luck.
I also tried to find a 5 point screen calibration routine, but this does not seem to be supported.
Does anyone know of a way to revert the x axis by modifying a configuration file - and can that be done without rooting the device??
They did offer to refund the price of the screen if I shipped the screen back to them, but I will most likely damage the screen when trying to remove the plastic frame and it will cost me shipping the part back to China...
Did you test if the touch screen is actually working on your reworked unit (you can use the HDMI output as I did)?
Unless I get the screen issue resolved I most likely will get a TF700 instead of my broken prime - I really loved the prime for the 4 months I had it working...
Click to expand...
Click to collapse
I was in the same boat as you... after I took apart the unit, I still had a functioning screen... but when I went further to separate the LCD from the digitizer, I must have damaged the LCD. Right now all I get are vertical colored lines. I need to get an HDMI cable so I can check the function of the digitizer.. It seems to work, because I do get color changes when its manipulated, but no image. Damm.. problem is... how much good money do I spend on a damaged device.. At this point, I wish I just sent it in to get fixed by Asus..
Killer95Stang said:
I was in the same boat as you... after I took apart the unit, I still had a functioning screen... but when I went further to separate the LCD from the digitizer, I must have damaged the LCD. Right now all I get are vertical colored lines. I need to get an HDMI cable so I can check the function of the digitizer.. It seems to work, because I do get color changes when its manipulated, but no image. Damm.. problem is... how much good money do I spend on a damaged device.. At this point, I wish I just sent it in to get fixed by Asus..
Click to expand...
Click to collapse
I'm not sure that your LCD is broken. It might just be the connection to the motherboard that is bad as chamberc said. I had the same problem with my broken screen. I had to wiggle the cable to get a partial correct picture on my screen. I tried to clean the pads without getting a 100% stable connection so I might have broken the flex cable as well, but normally these are relatively good at flexing without braking (they are made to do that) so I tend to think that it is the connection in the connector.
Until I figure out what to do with the touch screen I have not spend more time on root casuing it, but I suggest that you try to take the flex out of the connector and clean it with either a erasor or a cloth with alcohol and then gently put it back into the connector. Also ensure that you put it in the right way and close the hatch properly.
Good luck.
On the touch screen issue, my touch screen is working fine it JUST has a reverted x-axis, so it would still cause your colors to change, so I'm very curious if yours is working. Could you also share the touch screen part number (printed on the flex cable) and TF201 hardware version (TF201-1B or TF201-1I or???) This should be written on the label of the box and on the warrenty card.
The background for me asking about this, is that asusparts.eu has different spare parts depending on if is for TF201-1B or TF201-1I so there might be two versions of the hardware out there. Mine is a TF201-1B.

TF201 DIY screen replacement

Hi,
It seem like there are a lot of people that has TF201s with broken screens, but very little information about how to DIY screen replacement, so I wanted to post my bad experience here as a warning to people, so that they know what they get into.
The screen on my TF201 cracked (dropped on the floor - only the screen was damaged, the LCD and digitizer still worked) so I searched around the web to find ways to replace the screen - without luck
I did find instructions on how to open the device and I also found original glass/digitizer replacement parts on eBay originating from China at about $100 so I took the chance and ordered a new screen. It arrived 2 weeks after and looked good.
With the instructions on how to disassemble the TF201 posted on this forum, it was quickly open and the glass/digitizer/LCD is one subassembly connected to the mainboard with two flex cables - one for the LCD and one for the digitizer.
Next step is to power off the system internally. There is a small internal switch in the lower left corner that you should switch to the off position. The LCD and digitizer cables can now be disconnected from the mainboard. The connectors open easily by putting a nail under the white frame of the correctors and pulling the frame up and then pull out the flex cables. You now have the glass/digitizer/LCD separated from the mainboard.
The LCD has a few screws to hold it to the plastic frame - these should be removed at this step. Mine only has two screws mounted although there is room for more (bad assembly quality or a fix for screen bleeding???)
Now comes the hard part and the part where I failed! There is a plastic frame around the edges of the glass that you need to remove and mount on the new glass. This plastic part holds all the taps that keep the tablet together and it is taped to the glass with some VERY sticky tape!
I used a scalpel to cut between the plastic and the glass with the result that the glass broke in tiny pieces as I went around, but as I saw no other way I kept going... It might have been better to use a heat gun or a hairblower to heat up the glue before trying to remove it, but I was worried that the LCD might be damaged by the heat.
The plastic frame has to be removed first to have access to the foam tape that is used to tape the LCD to the glass/digitizer. Once the plastic frame was off, I again used the knife to gently cut the foam tape (around 1 mm thick) all around the LCD screen so that this can be removed from the glass.
Here I might have made my second mistake. I was worried that I would cut too deep into the foam and hit the LCD screen, but the foam at the bottom of the screen is a little wider than the rest and as I tried to remove the screen I used too much force and might have damaged the LCD - the end result was that also the LCD was damaged in the process. The damage might also have been caused by me pressing too hard on the screen during the removal of the plastic frame (might actually be more likely as the glass was broken across the screen and the damage I was seeing when I turned on the screen was following the same line as the crack).
Well, I got the LCD off the broken screen and though I had been successful even thought it had taken a couple of hours to get there (I could not visually see that the LCD was damaged at this point).
Then on to the assembly with the new screen/digitizer! I had some double sided tape that I used to tape the screen to the plastic, but decided to do a quick test before I fully assembled the unit and this turned out to be a good idea!
I mounted the LCD screen with just the screws and connected the flex cables back into the connectors (these can be a little tricky to get in, so just be patient and keep wiggling them in and close the latches). I enabled the power again and pressed the power button and: DAMM - THE LCD IS BROKE!!!!
After wiggling a little with the LCD cable I was able to get a partial image, but it was evident that I had mishandled the LCD screen during the disassembly and I needed a new screen to get my tablet working again - now I was glad that I did not glue the LCD to the glass, so that I needed both a new LCD and a new glass/digitizer!
Off to the web to search for a replacement LCD screen... Hmm, lots of ebay listings for TF201 replacement LCDs, but none of them looked like the original I had... Then I searched for the partnumber on the LCD I took out (Hannstar HSD101PWW2 rev. 0-A00) and I did find a few items priced around $100.
Before I started to spend more money on the device I wanted to check our if the digitizer was actually working, so I connected the tabled to my TV using the HDMI output to test...WHAT?? THE X-AXIS ON THE DIGITIZER WAS REVERTED!!!
I double checked the flex cable connections, but everything was in order. I then compare my broken screen with the replacement part and noticed that the signal routing on the flex cable for the new part looked quite different than the original.
I emailed the company that sold me the screen and he replied back that they JUST heard that some other customer have had the same problem - there might be different versions for the digitizer used in the TF201 (perhaps depending on production time)!!!
He suggested that I tried a hard reboot and a system reset to default and I tried that without luck.
I also tried to find a way to do a 5 point screen calibration, but this does not seem to be supported.
Does anyone know of a way to revert the x axis by modifying a configuration file - and can that be done without rooting the device??
Have anyone successfully replaced their screen - if so, could you reply with the partnumber listed on the flex cable? Mine is: 3KA12-5SCA01, 18100-10180100.
They did offer to refund the price of the screen if I shipped the screen back to them, but I will most likely damage the screen when trying to remove the plastic frame and it will cost me shipping the part back to China. After a few mails exchanges they offered a $82 refund and I accepted that.
I now have a TF201 with a working touch screen that has the x-axis inverted and no LCD...
Continued...
SUMMARY/LEARNING:
- IF YOUR SCREEN ONLY HAS A SMALL CRACK - LIVE WITH IT OR TRY TO FIX IT WITH AUTO GLASS REPAIR GLUE
- IF YOU REALLY WANT TO GO FOR DIY SCREEN REPLACEMENT, MAKE SURE THAT YOU GET A DIGITIZER THAT WORKS WITH YOUR UNIT!
- WHEN REMOVING THE PLASTIC FRAME FROM THE GLASS BE VERY CAREFULL NOT TO DAMAGE THE LCD SCREEN BY PRESSING ON THE BROKEN GLASS AND TRY TO USE A HAIR DRYER TO HEAT UP THE GLUE (NOT TRIED THIS MYSELF)
- WHEN CUTTING THE FOAM TAPE BETWEEN THE LCD AND THE SCREEN BE VERY CAREFULL TO CUT THOUGH ALL THE TAPE BEFORE TRYING TO REMOVE THE LCD
I now have a TF201 with a working touch screen that has the x-axis inverted and no LCD... Unless I get the touch screen issue resolved I most likely will get a TF700 instead of my broken prime - I really loved the prime for the 4 months I had it working...
Happened to me too!
Bought a prime with an already cracked glass with the hope to fix it, as i do with most higrer-end devices (phones in particular)...
I intended to pass it on to my mom as her first tablet. When i bought it, it was fully usable and after two weeks (before the digitizer got delivered) my mom got addicted to it.
Then i got the digitizer in the mail... I cracker the tablet open, unhooked the front assembly and started going at it. First i tried removing the screws in the hope that the lcd would easily seperate from the digitizer. Sadly that wasn't the case so my next action was to try and seperate the lcd and digitizer from the plastic frame... i broke off a piece of black glass that was over the frame and started working my way arround the gap with small but tough shears so that i would brake the glass off from the frame, working my way arround the screen and digitizer, while removing any broken glass from the frame at the same time. Took two hours and the two were seperated. Tried to connect the lcd to the tablet to see if it still worked, and it did. So i was left with what i thought was an easy task of seperating the lcd and digitizer by lifting the adhesive. Top, left and right went rather easily. I added thin plastic mediator-like opening tools arround the edge so that the lcd wouldn't get stuck back to the adhesive (was trying to preserve the adhesive stips for re-installation). When only the bottom one was left still attached i went with the experience/common-sence approach to start prying the lcd away from the digitizer where i thought the adhesive strip would be the same size and would easily give way... That's probably when the lcd couldn't take it and cracked.
Had i used a scalpel all arround- i would have been left with a perfectly working tablet, but all i had was a tablet with a cracked lcd. So i gave up on this not wanting to crack another (costly) lcd and sold it on ebay. That, and because it was a little too big and heavy to use on the train every day going and from work.
So what have i learned from this?
1. For tablets with glue-stripped-on LCD's ALWAYS break the glass arround the frame (with high caution) to seperate the digitizer+LCD from the frame
2. ALWAYS use a scalpel in between the adhesive and digitizer (making shure that when you insert it, you can see it infront of the LCD and behind the digitizer. If needed, angle the scalpel so that it rests on the digitizer and not the LCD. (LCD pannel edges ussually have a strip of metal or plastic arround the edge, so you won't damage them if you use light force on that area, as opposed to the glass itself.)
Hope people who do break their primes get to see these posts before attempting any repairs.
ThomasKJ said:
Before I started to spend more money on the device I wanted to check our if the digitizer was actually working, so I connected the tabled to my TV using the HDMI output to test...WHAT?? THE X-AXIS ON THE DIGITIZER WAS REVERTED!!!
I double checked the flex cable connections, but everything was in order. I then compare my broken screen with the replacement part and noticed that the signal routing on the flex cable for the new part looked quite different than the original.
I emailed the company that sold me the screen and he replied back that they JUST heard that some other customer have had the same problem - there might be different versions for the digitizer used in the TF201 (perhaps depending on production time)!!!
He suggested that I tried a hard reboot and a system reset to default and I tried that without luck.
I also tried to find a way to do a 5 point screen calibration, but this does not seem to be stouchscreenupported.
Does anyone know of a way to revert the x axis by modifying a configuration file - and can that be done without rooting the device??
Have anyone successfully replaced their screen - if so, could you reply with the partnumber listed on the flex cable? Mine is: 3KA12-5SCA01, 18100-10180100.
Click to expand...
Click to collapse
I have exact same problem with the touchscreen. X-AXIS is reverted but not fully, touchscreen works off pressing like a mirror on the left to the right.
I'ts video youtu.be/XUN_0q5I4ng
my touchscreen partnumber is same.
Сould you upload photos of the touchscreen cables differences between what you had originally and those that worked not correctly?
Where did you find the part number for the digitzer? Is it near the tiny QR code, or on it?
I have the same problem x-axis is reverted. Still wonder why? The original broken glass/digitizer was working fine.
Please share if you guys found the solution. I will do it too.
Thank!
Theres a vid about this. i will post it soon. i'm only using my phone. my prime is with my dad in china. i dont know when i'm getting it back in 2 or mor week i guess? surely i'll be noob again when i get it back.
I have the same problem too. Broken digitizer & lcd.. Got a replacement digitizer and the x-axis was inverted, sent it back and got the full refund.
After that i texted a few mails with another seller that knows the problem, he told me there are two versions of digitizers for the tf201. He sent out the (i hope) right one today, I will post the seller if this one works (takes about two weeks to get it..)
OP started this thread in another forum I found via google search where some guy figured out how to fix the x-axis problem by changing something in the source.. however I think he will release a patch after some more testing but he can't test right now because he has no lcd atm. Here's the thread:
bit.ly/OXx6us (hope it's allowed to post this)
same thing
I have exactly the same issue: axis-x is inverted.
I got it, thought it's broken or fake or whatever and sent it back. Bought another one from a different seller. Same problem.
I'm not a programmer, but I feel it can be fixed easy on a software level (just don't know where to look for it)
Here is my video:
digitizer on the way from China
Any one find a solution for this yet?
I have a digitizer on the way from China.
Just a bump to catch someones attention I hope.
I'm waiting to hear from someone if they found a supplier that will send the right screen, or if they know how to compile the kernel to make the screwed up screens work right.
Kind of holding off ordering mine at the moment.
All of a sudden there are a lot of these for sale on Ebay.
And there hasn't been much chatter on defective ones lately.
Makes me wonder if it was just a specific seller that had a bad batch.
Caught a guy trying to sell his TF201 with a broken LCD that he claims broke while replacing the digitizer.
Turns out he is trying to sell his with one of the inverted digitizers and not stating so in the auction.
I ordered a replacement from New Jersy and canceled the one from china I will see what happens when it gets here.
I will definately test it before I tape it down.
If it works let me know. I'm in Canada and would rather pay a bit more for a properly working one than some knockoff that I have to be a programmer to get working.
Any news on your replacement yet?
Nightpath said:
Any news on your replacement yet?
Click to expand...
Click to collapse
I got my second replacement-digitizer and it's inverted too.. so frustrating!
As there are so many people with this problem I hope some expierienced guy will take a look at the touchscreen-driver and post a little workaround. It is possible to fix this problem by editing the driver but I don't know how it exactly has to be done.
I will share my problem.
My screen broke, however, the LCD and touch still worked.
I ordered a new screen for ASUS authorized service, because using a tablet with a cracked screen is horrible.
I thought it would be posted only the digitizer, but no, the Asus offers LCD screen with digitizer, it is not necessary to work to separate the two parts.
A professional did the replacement.
The problem is that the new set is crazy.
When the tablet is horizontal | === |,
* think that is vertically
| = |
| = |
* and otherwise also.
I think I was unlucky.
* I'm about to order a new set, this time, buy direct from asusparts.eu
Hmmm...where exactly did you order your first digitizer (touchscreen)? And that site you linked sucks, no pictures of any of the items to make sure you're getting the right one.
Received mine yesterday, [email protected]#$** piece of crap!!
It is inverted,it is going back.
First they wanted to give me a discount to keep it, idiots!
Then theyy want to send me another in exchange, they don't seem to understand the problem is they are all going to be the same if they are from the same batch.
Any one found a source for a good one yet?
I am going to try and see if Asus will sell them directly to the end user.
They sell laptop parts, so maybe they will do a digitizer.
I'll post my findings.
Cool. I work long days here in Canada (military, sigh) so I don't get much of a chance to do anything. Let me know as soon as you find out TRJ

Q: How to ground the display/digitizer?

Hi!
I have broken the display on my Z2.
I have ordered a new one online and changed it. Soon I realized it's not working properly (ghost touches and unresponsive screen). After looking for a solution, I found out that this may be a grounding problem.
Since i saw, that the new display didn't come with adhesive covers for the chips on the flex cable, i have fitted them from the original display, but the problem still persists.
So how do I properly ground the display?
Does the bottom metal part of the display flex cable, have to touch the metal part of the frame? I suspect that sometimes it doesnt (new display didn't have the grey adhesive, the original had - but I can't remove it). Do I have to fix it with some kind of conducting adhesive?.
What about the top metal part of the display flex cable? Must it touch (ground) somwhere or it's not neccessary?.
Do I have to be carefull that some parts of the flex cable doesnt touch some other part of the phone?
BTW, I know the display isn't faulty because if I remove the back cover, sometimes i get perfect screen rensponse (maybe i ground it with my hand).
Thanks in advance.

Repairs

I have a Redmi Note 3 Pro for about half a year and I have my screen broken and my back cover a bit beaten up. I know how to change my screen, LCD and bezel but I don't know how to change the back cover because of the fingerprint sensor. Does anybody know how to transfer the fingerprint sensor to the new housing? Thanks in advance.
There's supposed to be a little ribbon cable connecting the fpc to the housing, disconnect it and you should be able to connect that to your new housing.

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