Moto e dead spots on touch screen - Moto E Q&A, Help & Troubleshooting

Hey guys, a friend of mine give me his moto e cause he had soft bricked it. Reading through the forum I could reinstall the firmware (4.4.4 latam) and now it's working fine, but there are 5 spot in a vertical line that doesn't register my touches, these spots are aligned in the middle of the screen, one is at the y position of the keyboard, and the others are separated 1cm each other (1 is under the y and the other 3 are above). Could this be a software related problem or I just have to replace the touchscreen? (I've tried factory reset two times but I've not reflashed the firm again) thanks in advance and sorry about my English.

First take a try with Screen tester app die playstore, and change rom once, if didn't helped, you can replace screen assembly at low cost on local markets.

Well, i've reflashed the stock 4.4.4 firmware and it's still the same, i guess i'll have to replace the touchscreen. I dont know how the touchscreen works in this phone but it's a little strange that certain isolated areas in the middle of the screen doesnt work..

pabliyofp said:
Well, i've reflashed the stock 4.4.4 firmware and it's still the same, i guess i'll have to replace the touchscreen. I dont know how the touchscreen works in this phone but it's a little strange that certain isolated areas in the middle of the screen doesnt work..
Click to expand...
Click to collapse
I had the exact same problem. I had 4 such huge spots on the left side of the screen where touch didn't work. ROM reflashes don't help. Yeah it's really strange. First I thought it might be cuz of water spilled over the screen but later on found out that the display assembly is completely sealed and water can't get in. Yeah it's really strange how display suddenly stopped working that way..even touches of local phones don't get magically spoiled like this, dunno what's up with moto. I got it replaced from local market for 1300. I would say the quality of the display, touch, brightness, contrast, everything is same as that of the original display. The only thing I suspect is that the glass is not gorilla I guess.
Sent from my landline

Related

[Q] Oh my poor Aria! (Screen Replacement issues. A little help please?)

Well I did it... Broke the screen a couple of weekends ago. Ordered and received a new one. (No problem and not too bad price-wise) Then I ordered the correct screwdriver. That came in yesterday and I followed a couple of tutorials online to take the thing apart. Not too bad despite the teeny-tiny parts. I got it back together and lo-it worked! Actually it took a couple of tries and I reflashed it but then it booted right up. All the apps seemed responsive and life was good once again...
Until I tried to make a call. Then the screen went dark and it appeared that the phone froze up. Called myself from the house phone and discovered that the Aria was dialing, connecting, and sending voice but that I couldn't hear anything on the Aria.
Disassembled, re-set the earpiece, reassembled, called myself again, and I could hear. The screen came on and stayed on, but the touchscreen would not function.
Disassembled, checked all the connections, and reassembled again. The phone appears to work correctly in all aspects until I try to make or receive calls. At that point the screen shuts down and the only way to disconnect a call (or get the screen back) is to pull the battery and reboot.
I tried reflashing the ROM and that didn't work. I'm afraid the transceiver is shorting the screen out somehow but have reached the limits of my expertise.
Any suggestions?
Thanks,
Jerry
I have never had to replace my digitizer so only speaking from what i have read but it sounds like the very small rubber piece that covers the proximity sensor. I have read that if missing or not placed correctly people have had the same problem as you. Just my thoughts
I've replaced my digitizer and I have had the exact same problem. E.Cardo is correct, it is the small rubber piece on the proximity sensor not positioned correctly or not present at all.
Thanks to both of you. The proximity sensor is supposed to be right behind the ATT logo, correct?
I can't wait to get home and try this. I really don't like the backup Cliq Xt... I'll post once I've messed with it.
gdgeorge said:
The proximity sensor is supposed to be right behind the ATT logo, correct?
Click to expand...
Click to collapse
It's hard to see them exactly so I took a picture to show exactly where they are:
http://imgur.com/a/36h8t#ayQhv
It's actually just above the & in the at&t logo, although if you have a replacement digitizer, it might not have the at&t logo on it. If you have trouble seeing it, try looking at it in the sunlight.
To add to what drumist said there as small black rubber piece that goes around the proximity sensor that prevents light seepage and allot of people discard it by mistake when disassembling the phone.
Sent From Deep Within The Rabbit-Hole
Why did you have to reflash? The new screen didn't worked?.
My aria's screen is broken too. I boutgh a new one but It doesn't work. Do you resolve this reflashing? (that's mean applying the new rom version from ATT)
Thanks for your response.
javierarenas said:
Why did you have to reflash? The new screen didn't worked?.
My aria's screen is broken too. I boutgh a new one but It doesn't work. Do you resolve this reflashing? (that's mean applying the new rom version from ATT)
Thanks for your response.
Click to expand...
Click to collapse
The screen or digitizer are hardware they should have nothing to do with the rom. The op only tried flashing the phone to illuminate it is a possible source of the problem. It sounds like you did not install the new screen or digitizer correctly you may need to disassemble and make sure everything is connected correctly and securely. Flashing your phone will most likely not correct your problem.
Sent From Deep Within The Rabbit-Hole
Maybe, just maybe, there are new drivers for the touchscreen included in the rom. I am using cyanogen 7.0.3 without problems, and it works nice with the old screen.
Or the new screen is defective.
I am pretty sure I installed correctly the new screen. Of course the old one is working fine right now.
I requested a new screen so I will wait...
Thanks again.

[Explanation] Ghost touch

{ Disclaimer: the following text is my view about this problem. I'm not in any way responsible for any damage }
As there is very little info known about this phenomena I will try to explain it. I learned a lot of disassembly guides and by visualizing it (settings-development-show touches)
Ghost touch is a strange phenomena of various types and is due to a hardware fault between the mainboard connector and digitizer screen, I'm therefore trying to clarify it by categorizing them in three groups:
1. Small; Screen is unresponsive. 1 lock/unlock and it works again. Almost perfect. No need to replace screen. Most common.
2. Large; Same as 1, and often up to 5 touches and the touches are often moving/pressing parts of the screen. This can become a very frustrating period. Messaging apps and settings can be messed up by these touches. Often a lock/unlock will fix this temporary. A full screen replacement is recommended
3. Unworkable; Same as 2, and the lower and upper part are not working anymore. Notfications bar can not be pulled down anymore, typing become a nuisance and it not possible anymore and you curse your phone. Also it is not even possible to insert your pin, unlock your phone etcetera. This problem will not be fixed by a restart/reset or lock/unlock. A full screen replacement is essential.
Many people say this can be fixed by software settings, however this is a hardware fault. I tried many different roms and I encountered at all of them. The only fix that can be done to fix this is replacing of the full screen as it is not possible to apply/remove your digitizer.
For a long time I thought it was due to the degrading digitizer or something, in fact it is probably the connection between the and the mainboard. The screen has two digitizers: One for the touchscreen and one for the home/settings/back/search buttons. For some reason this last one did not cause any trouble. The first one has a flex cable from the upper part of the screen leading toward a small hole and heading to the mainboard. The problem will probably reside in the part between the digitizer and the small hole. Here, just above the screen, the flex cable is folded 180 degrees. This fold will cause the problem as it is very sensitive. Mine has a very small damaged part, the copper parts are visible. The cause of this is due to the rubbing of the bezel just under the speaker.
How to fix it?
Buy a new screen including digitizer (often HTC & Sprint branded) and make sure you protect this part as much as you can.
EDIT:
I re-inserted my old LCD display with a bit of tape around the damaged part. Since then I haven't had any ghost touches.
Mine was ghost touching so bad it was completely unusable for a few days. I was thiiiiiiis close to buying a new phone, then one day it just stopped and hasn't done it again since. Very strange. Anyhow, I will be replacing it with an s4 when the price comes down to $100 for us SERO users.
Ghost touch
Nice explanation, and nice 3 lvl sorting but, tell me one thing... I have experience with lvl 1 and 2 (two different phones) and for both of them simple ROM change / reinstall helped to solve this problem.
For ex. I had JB [ROOTBOX] ROM since the last week.. ghost touch problems were getting worse and worse with each new day yet lock/unlock still worked quite well.
I decided to test new JB MIUI ROM and like a magic touch my ghost friend is gone since than, but I am afraid he will return more powerfull than ever... oops that is a different story. However my phone is now working fine ... no ghosts detected.
So please don't tell me that this problem is only mechanical problem ( due to ROM change / reinstall worked multiple times). Actually I am pretty sure that is software problem which is supported by hardware hitches.
My friends "ghost story" is pretty similar.. but he reinstalled back original ICS ROM.
PS: I don't want to start flame war with this reply. It is just mix of my experience and opinions.

[Q] Displey Digitalizer Problem Repair?

Hello
I have problems with the phone, I thought it was for the last flashing ROM LiquidSmooth, but even after the factory setting and load a new ROM problem remains the same.
At the bottom of the screen, about 1.5 cm from the bottom edge of the phone detects bad touch, which will be reflected in writing when you press "L" activity to side letters either left or right, if I'm somewhere in the menu item is placed in the bottom of the screen do not respond . So far, it solves turning the phone 90 or 180 degrees.
It would be a repair is not possible or advantageous to buy another phone?
Thanks for your response
beldy said:
Hello
I have problems with the phone, I thought it was for the last flashing ROM LiquidSmooth, but even after the factory setting and load a new ROM problem remains the same.
At the bottom of the screen, about 1.5 cm from the bottom edge of the phone detects bad touch, which will be reflected in writing when you press "L" activity to side letters either left or right, if I'm somewhere in the menu item is placed in the bottom of the screen do not respond . So far, it solves turning the phone 90 or 180 degrees.
It would be a repair is not possible or advantageous to buy another phone?
Thanks for your response
Click to expand...
Click to collapse
It's pretty common issue. The only way to fix it It's by replacing digitizer.
It's a faulty digitizer problem.
I have my evo 3d for 2.5 years. After a year, my screen started messing around, I took the phone to the repair shop, the guys there replaced the digitizer and it works like a charm ever since (which is about 1.5 years later).
So, just find a good repair shop. and don't worry.

Line on keyboard off calibration after screen replacement.

I just got done replacing my broken screen on my LG G3. I replaced the whole front panel and just transfered the guts. Everything checked out fine after replacement until i typed my first text message. row A-L will not goto screen unless I touch nearly inbetween the middle of the row beneath it. q-p work fine as well as z-m. What really has me boggled is that the screen accepts touches there in virtually every other app/drawing. Just the keyboards aren't allowing touch in that specfic row. any suggestion?
Found a few more bad section.. Pulled the back loudspeaker back out and tried reseating the cables and still had same issue. They're sending a replacement for free.
This was my first screen replacement, but not my first time dealing with small ribbon cables. All cameras function fine, hoping it was a defect in screen and not my screen changing abilities.. Any tips for the next one would be appreciated. Would like to have a fully functioning phone again sometime. This is nearly more frustrating than the broken screen.
I am having same Issue
steber04 said:
Found a few more bad section.. Pulled the back loudspeaker back out and tried reseating the cables and still had same issue. They're sending a replacement for free.
This was my first screen replacement, but not my first time dealing with small ribbon cables. All cameras function fine, hoping it was a defect in screen and not my screen changing abilities.. Any tips for the next one would be appreciated. Would like to have a fully functioning phone again sometime. This is nearly more frustrating than the broken screen.
Click to expand...
Click to collapse
Hey just curious if your issue has been resolved.... I am having same issue, but i took mine to a computer store i have been dealing with for years. about a year ago they started doing cell phone repairs as well. I had them replace my cracked screen on my LG G3 and that same row of text if off for me and there are a few other spots i have noticed are off as well .... very frustrating... Anyway the place I took it to has replaced 3 screens hoping they were getting defective parts.... they just called to tell me I can come get it but they were unable to repair the dead spots without going further into replacing boards or something.... I dont know... It is weird though cause you can get the dead spots to work sometimes by very lightly touching or just touching it in just the right spots like a calibration if off....
thomas020476 said:
Hey just curious if your issue has been resolved.... I am having same issue, but i took mine to a computer store i have been dealing with for years. about a year ago they started doing cell phone repairs as well. I had them replace my cracked screen on my LG G3 and that same row of text if off for me and there are a few other spots i have noticed are off as well .... very frustrating... Anyway the place I took it to has replaced 3 screens hoping they were getting defective parts.... they just called to tell me I can come get it but they were unable to repair the dead spots without going further into replacing boards or something.... I dont know... It is weird though cause you can get the dead spots to work sometimes by very lightly touching or just touching it in just the right spots like a calibration if off....
Click to expand...
Click to collapse
A review on G3 LCD's on Amazon reports the same problem "I installed the screen and immediately my wife mentioned that it seemed to have "dead spots" when she was texting / playing games. I noticed it myself when I tried texting myself as a test. Several of the letters on the keyboard just wouldn't register very well. She went into the settings and ran the "motion sensor calibration" test under general settings>gestures. This has resolved the touch screen issues. "
I don't see how that would fix it but I guess it's worth a shot.

Screen is locked but responding to touch

I have a very irritating problem my device touch screen is responding even though it is black and locked. It keeps annoying me when i am in a call and it is only a matter of time till it ends the call. Problem started after having a screen replacement but i can hardly believe it is a screen problem because it is functioning normally and also gets dark when i am in a call. My proximity sensor is working as it should. It is like my screen gets dark and not totally off.
My phone is rooted and i am running lollipop 5.1.1 custom rom
Ma790 said:
I have a very irritating problem my device touch screen is responding even though it is black and locked. It keeps annoying me when i am in a call and it is only a matter of time till it ends the call. Problem started after having a screen replacement but i can hardly believe it is a screen problem because it is functioning normally and also gets dark when i am in a call. My proximity sensor is working as it should. It is like my screen gets dark and not totally off.
My phone is rooted and i am running lollipop 5.1.1 custom rom
Click to expand...
Click to collapse
It sounds like you are having ghost touch problem. This usually presents itself when you change the front glass with digitizer and leave the old LCD. This cannot be repaired if this is the case. I dont think this is a sw problem. When did this issue started to manifest itself? Right after the screen replacement or it started to appeare gradually?
Yes it appeared just after repairing the cracked screen. The lcd was working but not the touch and the glass was all cracked.
How can i solve this?
5ageman said:
It sounds like you are having ghost touch problem. This usually presents itself when you change the front glass with digitizer and leave the old LCD. This cannot be repaired if this is the case. I dont think this is a sw problem. When did this issue started to manifest itself? Right after the screen replacement or it started to appeare gradually?
Click to expand...
Click to collapse
One thing to mention is that i do not get touches that i didn't make. They are just getting read when the screen shouldn't read them.
Ma790 said:
One thing to mention is that i do not get touches that i didn't make. They are just getting read when the screen shouldn't read them.
Click to expand...
Click to collapse
But does touch work normally when you use the phone? Ghost touch can manifest itself on various ways, like your case or can go completely crazy when the screen is on. You can try some apps that resolve ghost touch like touch fixer. Some people are saying that unlocking BL and flashing CM resolves this issue and other sollutions you can try is to apply heat with heat gun or hair drier directly on the screen to make sure the glue is sticking the digitizer onto the LCD propperly, or fiddle with the flat cable contacts bit by bit until the touch is working properly but this requires disassembling the device again. You can alway try to flash different firmware to see if it'll resolve your issue but I highly doubt it will. GL
5ageman said:
But does touch work normally when you use the phone? Ghost touch can manifest itself on various ways, like your case or can go completely crazy when the screen is on. You can try some apps that resolve ghost touch like touch fixer. Some people are saying that unlocking BL and flashing CM resolves this issue and other sollutions you can try is to apply heat with heat gun or hair drier directly on the screen to make sure the glue is sticking the digitizer onto the LCD propperly, or fiddle with the flat cable contacts bit by bit until the touch is working properly but this requires disassembling the device again. You can alway try to flash different firmware to see if it'll resolve your issue but I highly doubt it will. GL
Click to expand...
Click to collapse
Tried another rom and it is working as it should!! thank you for your help

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