Specifications:
Asus transformer tf300t
display partnumber hsd101pww1 rev 4-a00
OS latest software version
I have replaced a lcd display a some time ago. The replacement LCD was working fine, but after a few months the replacement lcd display is showing a strange and wrong color gradient. It looks like old 16bit colors...
My hardware related question, could this problem be cable or lcd or mainboard related?
Yikes. I'd suspect a physical issue with the display. What do you see when you connect to an external HDMI screen?
Jgrimoldy said:
Yikes. I'd suspect a physical issue with the display. What do you see when you connect to an external HDMI screen?
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When the hdmi cable is plugged between tablet and my tv, there is nothing wrong with output.
Today i have replaced also the flex cable, that did not help either.
Could the problem on lcd dispay be fixed? :'(
gedore said:
When the hdmi cable is plugged between tablet and my tv, there is nothing wrong with output.
Today i have replaced also the flex cable, that did not help either.
Could the problem on lcd dispay be fixed? :'(
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I'm speculating on the damage being with the LCD. I'm an IT professional (20+ years), so I do have a bit of experience here. One thing that's concerning is how the screen is separated, vertically, into the four bands. LCD screens are ridiculously delicate. I know from experience, having broken mine when replacing the digitizer glass.
LCD screens are typically very difficult/impossible to repair. It's cheaper/easier to just replace. I know this sort of sucks. Perhaps you can buy a replacement from a vendor that has a decent return policy. I'd use rubber gloves to handle the replacment (no fingerprints). Temporarily connect it. Problem gone? Then it was your LCD. Problem persist? (unlikely). Repack and return the replacement screen.
Good luck.
-jg
OK I have ordered a new lcd display, lets hope this will solve my problem.
Thanks everyone for your reactions.
I ordered nook simple touch screen replacement ED060SCE and the seller send me an kindle 3 lcd ED060SC7 - is it possible to replace one with another ?
send it back to ur seller ..... it have a total deference between screen at least hardware one .... simply send it back and order the right one ,,,, but where u from??? and how much that screen cost u .... i suggest u buy an new refurbished NST about 60$ or less from ebay ... if u find out screen cost u much
please elaborate
speedman2202 said:
send it back to ur seller ..... it have a total deference between screen at least hardware one .... simply send it back and order the right one ,,,, but where u from??? and how much that screen cost u .... i suggest u buy an new refurbished NST about 60$ or less from ebay ... if u find out screen cost u much
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Hello speedman and OP.
Speedman, can you please elaborate on your answer.
I am refering to this part of your answer ".... it have a total deference between screen at least hardware one .... ".
The reason I am asking is that I had epiphany two days ago that didn't end well, but the journey was rewarding.
I was thinking, ok Kindle 3 (keyboard) has a better screen that nook ST (contrast). I really like my rooted nook. Both things are made in China, by same manufacturer.
I will make an uber device and fit a kindle 3 screen on nook. (I am not a technical person, but i do love my rooted nook, may he rest in peace).
I was really close, and was able to connect kindle screen to nook simple touch battery and motherboard. And it worked, it showed nook screen on my half opened kindle keyboard. Unfortunately, I got overzealous in attempt of removing screen from nook simple touch (bloody silicone), and screen broke. At this point all my confidence was gone. I reassembled kindle 3 fast, so at least i have one device safe.
So, my question is, if i actually try to do this again (30 gbp for nook st these days), will i have touch capabilities, that is: where is the bloody infrared, on the eink screen? haven't seen anything special there....
I was so happy when I sow OP question.....and than cold shower......
The infrared touch module is attached to the bezel of the Nook, has no connection to the e-ink screen. I think that the panels are identical as far as specs, not sure about the connections though. Any difference in contrast has to do with the software, not the panel itself.
OB
Sent from my Evo V 4G using Tapatalk 2
dkuku said:
I ordered nook simple touch screen replacement ED060SCE and the seller send me an kindle 3 lcd ED060SC7 - is it possible to replace one with another ?
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dont do it - I have also ordered ED060SCE and the seller send me ED060SC7 - I put it in the device and it didn't work. I ordered later a second one and I figured out that my mainboard wasn't working after instering the kindle lcd - I ordered a second nook with broken lcd and in this unit the new lcd worked like charm
dkuku said:
I figured out that my mainboard wasn't working after instering the kindle lcd
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You mean you have a broken NST motherboard?
Could you do me a favor? I need good pictures of its both sides, but with the hardware button springs removed (these are the four white long shapes on the edges of the board, each with two dark dots - visible here: http://d3nevzfk7ii3be.cloudfront.net/igi/ffHPkaSDPfAGTYQD.large).
I would like to make a cable extension for the hardware buttons (connected via a DIY magnetic plug), so I need to trace parts of the board. I am a little reluctant to remove the springs on my working Nook and some of the paths are under them. TIA
trurlo said:
You mean you have a broken NST motherboard?
Could you do me a favor? I need good pictures of its both sides, but with the hardware button springs removed (these are the four white long shapes on the edges of the board, each with two dark dots - visible here: http://d3nevzfk7ii3be.cloudfront.net/igi/ffHPkaSDPfAGTYQD.large).
I would like to make a cable extension for the hardware buttons (connected via a DIY magnetic plug), so I need to trace parts of the board. I am a little reluctant to remove the springs on my working Nook and some of the paths are under them. TIA
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look on the other side - under every button is a exposed point of copper - I think the the switch when pressed connects it to GND
dkuku said:
look on the other side - under every button is a exposed point of copper - I think the the switch when pressed connects it to GND
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You probably mean the via - yes there is one or two under each button. I might try to use them as soldering point, but a better way would be to find a path to one of measuring fields (the larger round fields on the board).
trurlo said:
You probably mean the via - yes there is one or two under each button. I might try to use them as soldering point, but a better way would be to find a path to one of measuring fields (the larger round fields on the board).
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look at the last picture - I removed one switch - it goes only to the other side NST pictures
dkuku said:
look at the last picture - I removed one switch - it goes only to the other side NST pictures
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Thanks! On the photo it looks like the outer ring is indeed connected to the GND paths at the edge of the PCB (if they are GND, which I will check). Can you confirm it?
trurlo said:
Thanks! On the photo it looks like the outer ring is indeed connected to the GND paths at the edge of the PCB (if they are GND, which I will check). Can you confirm it?
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as I look close then I see they aren't connected to GND - I put two more photos with all switches removed - hope this helps you
dkuku said:
I put two more photos with all switches removed - hope this helps you
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Thank you, that helps a lot - while they might not be connected to GND, they seem to be organized in a simple 2x2 matrix - I can see a path connecting two outer rings in the upper part of the PCB - that would mean I can extend these 2 buttons easily with a 3-pin connector. That would be enough.
I will let you know if it works out.
The question of keyboard stuff is continued here: http://forum.xda-developers.com/showthread.php?t=2434722
trurlo said:
I will let you know if it works out.
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Here is the result. Thanks for your help. And thanks to Renate for confirmation of the pinouts.
I think maybe put a screen Kindle 3 in Nook. Datasheet are almost identical. Waveform is in firmware 1.2.1 for display...
I can confirm the e-ink screen for Kindle Keyboard can be put into Nook Simple Touch, working beautifully. Just be careful when taking NST apart, because the e-ink screen is VERY tightly glued to the back panel, using some kind of strong double sided tape. I ended up cracking it...
Hi All
Just started to buy up some old (spare or repair) I9100 phones with the hope of getting at least one which would work fully. I now have the final product but still no working screen! The screen I have looks perfect but shows nothing, I've tried the following:
Shine torch on screen to see if the LCD is damaged (nothing)
putting the screen on a second S2 (nothing, but it is not known if the second one actually works beyond making the right noises on start up)
Cleaned off all the connectors
I really don't want to take the screen off the frame so I wanted to know if anyone knows about testing/fault finding on the LCD with a multimeter type set up, like maybe a pin out or test points. Failing this I'm thinking of selling it all back on, so with that in mind does anyone have any advice on the IMEI and what to advertise.
oh and I've got some reasonable images of the LCD connector and some of the resistors which can be seen through the viewing ports in the frame for possible continuity tests.
Thanks in advance.
Hi all,
I broke my screen and ordered a new one (without frame). Replacing it was easy (after waiting for it for more than a month... thanks COVID-19), except that I was dumb enough to miss it was using a ZIF connector, and forced-push the cable in (shame on me).
It broke some pins, at first I didn't even notice but when looking at some stuff I took a picture off, it clearly appeared some colors were... unusual (pink instead of green ). So I double checked and indeed, pins had been damaged.
Anyway, to my question: do you know by any chance where I could find a screen frame (which comes with the fcc cable the zif connector is soldered on)? I only found frames with the screen attached and of course I don't need another new screen...
I checked ebay, but the ones I found don't look at all like the original.
I'd also be interested by the cable alone, but it would be way harder to put back in place I guess (as it's also holding front sensors).
If someone has a dead Mi Mix 3, it could also be helpful...
Thanks!
EDIT: nevermind, Amaan at Cellspare.com did an awesome job finding the flex cable and adding it to their listing when I asked him for help! Everything's getting better now
Hi.
Some days ago my phone dropped from about 2m/6ft high. It was wearing a carbon fiber shell. There was no physical damage on the outside.
Since then, the phone randomly powers-off. Sometime takes some minutes, some time it does not pass through the Mi logo screen on boot.
Another issue it shows is with the videos. Any video shows only a green screen (like a chroma) with big pixel artifacts from time to time (like there is a decompression error). This happens with every video (youtube, minimized-youtube, image-in-image, instagram...). It even happens with the charging animation when I connect the power: full green screen with the percentage on it.
I managed to keep it powered on, more or less stable, by setting a plastic clamp on the upper-left corner of the screen (like where the camera is placed, but on the other side). That pressure seems to keep whatever is broken in place. I've managed to replace the clamp with some paper layers in the shell, so when the shell is set they make pressure on the back-cover and keep the phone on.
Any one has had a similar experience? Is that a soldering point broken or something like that? how could I repair it? reballing? Any one knows any service center in France/Belgium/Spain which is reliable (and won't cost me more than the value of the phone)?
Thanks in advance!
It might be a dislodged ribbon cable connector.
Otherwise a damaged display an/or mobo.
The SOC and other BGS form factor chipsets are suspectable to damage by board flexing and high G impacts.
A high G impact can internally damage chipsets as well. 6 feet is a lot...
blackhawk said:
It might be a dislodged ribbon cable connector.
Otherwise a damaged display an/or mobo.
The SOC and other BGS form factor chipsets are suspectable to damage by board flexing and high G impacts.
A high G impact can internally damage chipsets as well. 6 feet is a lot...
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Thanks @blackhawk !