Strangest screen problem I've ever seen. Would this be a broken displayor broken GPU? - Moto Maxx Q&A, Help & Troubleshooting

Hi all
My moto Maxx has gone through a lot, but the strangest problem yet started yesterday.
As you can see on the attached video, half of the screen is constantly scrolling. This happens in fastboot and recovery mode as well, so I'm pretty sure it's a hardware problem.
The digitizer still works perfectly, and registers touch where the icon or button should be positioned on the screen. The moving screen also does show everything correctly, just in this crazy scrolling way.
I'm not very hopeful in fixing it, but was wondering if anyone has ever seen this, and if you guys think this is a broken display(and any way to test this?) or a broken GPU. If it is in fact the display, I might consider replacing it.
Some background on all the terrible things I did to this phone:
- Dropped it and cracked screen in September.
- Replaced the glass myself, slightly burned display when removing glass without any consequences (just a tiny mark on the top right, the side that actually still works).
- Dropped again, broke glass again, never bothered to fix it, some small pieces are missing so dust, sweat,.. could've gotten int.
Video:

Most likely the display being broken.
Even when my tempered glass protector is missing chunks the screen starts to funk up. Only worse being the real screen especially the digitizer.

You might be right pjd, or at least screen related.
I opened it up yesterday evening, and I think it might be the cable connecting the screen. Depending on how I positioned the screen and thus the angle at which the cable was bent, it was fixed, the same, or just completely black.
The only thing I have to try to find out now is if it's the kabel, or the connector on the motherboard. Any suggestions on how I could test that are welcome!

Related

Strange Problem with my Screen

This is a physical problem, the screen works fine and has no distortion as far as what it looks like when its on. But I noticed this weekend that when it was off I noticed a like triangular section in the middle of the screen, where it has a rainbow-ish discoloration pattern and small dots in the middle of the screen, about 1/4 of a inch inward all the way around the display part of the screen. The dots are in a perfect grid-like format and the rainbow color distortion almost looks like an oil slick.
I have had the factory screen protector on it since day one, I peeled it back today only to find its on the screen itself, I tried to wipe it off and nothing. I always carry the phone in a belt clip and never in my pocket, etc. So I don't know how it could have gotten damaged or how damage could cause such a curios perfect pattern of strangeness on the screen.
Anyone else ever seen this happen?
well i have heard its damage from high pressure... the touch layer in the screen gets damaged some how and leaves an oil looking spot... sorry but here is a good thread on what i think your seeing http://forum.xda-developers.com/showthread.php?t=428749&highlight=spot+screen
Oh wow/crap its times like this when I guess I'm glad I'm not a regular consumer but have this through work, so I'm sure they will replace it, if not they will buy me another. Should I even get another or is there something like this but better? I'm with ATT.
If you want a windows mobile powerhouse stay with the fuze... for sure... i have had mine since november when they first came out for at&t and mine runs and looks great... no screen problems or anything... ya and good thing its through your company

[Q] Display problem(spot, pressure remains)

So, few days ago my Touch pro(GSM) started with this weird issue. It looks like a circular spot <1cm diameter. It looks like pressure is applied to the display from back of the display. I tried to take photo when I disassembled phone and tried to resolve this, but display is glossy and camera cannot properly focus :-( spot i located in place where there are hatch(door) mechanism on back. When I dissasembled phone there was nothing causing pressure. I found out that if I press corners on diagonal axis spot disappears. I think that back of the display is arched in some way and pressure on chasis of phone press arched back againts lcd crystals. It happened when I was wearing my TP in jeans pocket. So first thought was that some stich in pocket, or something was presing againts display, but I am almost sure that this is caused by pressure on body of phone. Its night here so I will see tommorow If dissasembling, tinkering with screwdriver helped, but I dont believe this much. Question is: Did someone experienced this kind of issue? How do you resolved it? Will buying new display from ebay help?(I think yes, but there is possibility that display is ok and body is deformed in some way)
Thanks for your time.
Does it look as an oil spot?
Try to raise the membrane with vacuum or sticker and you'll see,if it disappears for a moment.
If so,I am affraid,you have to replace display/digitizer.
I got this oilspot on one of my Himalayas.
Also touch isn't working on this place,anywhere else is working,but after raising the membrane.
Well, I am 100% sure that digitizer is ok, because spot was on display. Touch functionality was ok but display was having strange colors and after disappearing light yellow tint in place of spot. As I took apart my Touch pro, I was ok with buying new display so I looked how old si attached to the case and bended it a little. Spot disappeared and display is still ok and I consider it repaired. Maybe it was really only the bended back or it was one of those self repairing defects.

Dust under screen & touchscreen problems linked?

I was wondering that if these two flaws goes together. If dust can go under screen -maby there is a too big of a gap between parts and the touchscreen connection isnt good etc. Personally I dont have neither one and my phone sits in my pocket all-day-along. So fill in the poll (if I manage to put it in) and lets see if there is something to see.
If you keep your phone so the dust problem is unlikely to appear, please DO NOT answer the poll because this would skew the results.
I think they could be linked since I only got bad touchscreen when my dust contamination level rose from 1 spec of dust to 3 and a batch on the right side. Immediately the next day I felt the touchscreen become unresponsive.
Although that day when I first spotted the increase of dust amount in the screen, touchscreen worked as intended. I only started experiencing lazy touchscreen the day after that.
Maybe somehow specs of dust get "electricized" and affect the touchscreen operation?
I don't see how this could be affected by dust, as the touch layer is glued to the glass, while the lcd is just a screen which displays stuff dust doesn't come through the touch layer. I think it's due to static buildup in the phone.
Edit: also i got the faulty touch screen issue after a week, but it disappeared again, and now i don't have it anymore
Miguel- said:
I was wondering that if these two flaws goes together. If dust can go under screen -maby there is a too big of a gap between parts and the touchscreen connection isnt good etc. Personally I dont have neither one and my phone sits in my pocket all-day-along. So fill in the poll (if I manage to put it in) and lets see if there is something to see.
If you keep your phone so the dust problem is unlikely to appear, please DO NOT answer the poll because this would skew the results.
Click to expand...
Click to collapse
No, it's not linked
I have my sensation in puch always when not in use, and there is no dust/any other stuff that could go into phone.
When I got my first sensation it had some dust or dirt whatever under the screen already, they replaced it in few days, now I have this new and it took 2weeks for something to get under there again.
Going to return/replace this again soon.
not good, not good at all!
I queryed htc about that and they answered that return/replace it at the shop, and that what the sop did nice and fast.
I wanted to check if my phone was s-on or s-off so I booted into bootloader (alas, it was s-on), but after I rebooted back into normal mode, touchscreen returned back to normal. No more touchscreen issues.
Very strange, I will be testing it further.

Screen unresponsive, partially dead

So I've got a relatively cheap used sensation off ebay. It was announced defective and it was stated that part of the screen is dead. So I thought there were some dead pixels which didn't seem much of an issue for me. However, there are no dead pixels, the screen looks fine. However, it is very unresponsive. I have trouble pulling the ring to unlock the screen, selecting icons, typing, ect. There is also one part of the screen (one whole row) where the screen is completely unresponsive (doesn't react at all when touched).
Tried the SGS screen booster, tried cleaning the metal contacts on the battery side of the phone... nothing worked. The phone still has it's warranty seal, so it doesn't seem to have been opened..
Any suggestions other rhan faulty digitizer?
Thanks for your help
Sounds exactly like a faulty digitiser, which is costly to repair unfortunately, although it it surprisingly hard to break them, recently smashed the glass on mine, and the touch still worked perfectly!
I just asked the seller what made the touchscreen to stop responding. He said the phone fell off, hit the ground and afterwards the display wasn't working properly. Maybe there is some other way to fix this? The digitizer itself is not broken.. maybe there is something that got displaced.. or maybe there is a faulty connection somewhere on the pcb... do you have any suggestions? Thanks!
just noticed that if I squeeze the phone top to bottom (i.e. grab it with the thumb onto the unlocking latch for the back cover and the middle finger on top of the phone, just above the speaker) it opens 'messages'.. So maybe there is some bad connection on the pcb? Or should this definitely point to a faulty digitizer?

Need options for screen-on with cracked screen and probable proximity sensor issues

In the last two months or so I cracked my screen with the shatter/cracking starting in the upper right-hand corner of the phone. I still have not found a suitable solution for fixing the screen, I was hoping to get a solution to an issue this seems to have created where the display will not turn on.
Simply put, the screen no longer turns on unless initiated by the software with activities like "Hey Google", receiving a text/call, or plugging/unplugging the phone. The majority of the time I cannot get the phone to turn on with normal methods such as media gestures (double tap), any buttons (volume/power), fingerprint sensor are all unable to turn on the screen. Strangely, many times I will receive haptic feedback that senses the physical method I am using but the screen still fails to turn on. Squeezing the phone also doesn't work but is not desired any more as a concern for making the cracking worse.
It's a US phone, rooted, 1.30.617.2 with Magisk and Xposed. I have tried a variety of possible methods with no success including gravitybox hardware tweaks, Cleanslate kernel options, and a variety of stock options that were all unsuccessful.
My best guess is that the cracking on the screen starts in the upper right-hand corner where the proximity sensor is. It is completely shattered there and I have a clear screen protector as well. Is it possible that the proximity sensor is causing this? If so, any suggestions to disable it somehow. If not, do you think it is a damaged product or something else?
With the difficulty of getting and swapping the cracked screen, I am hoping someone can help. THANK YOU!!!
I recently just swapped the screen on mine and it was a bit of a challenge but not too difficult that I wouldn't do it again, for someone else. LOL. Anyway it might be possible to disconnect the prox sensor simply by removing the back cover and a few screws at the top of the device. Not 100 percent sure it will still work or what reaction you might get by disconnecting it, but if you're not going to replace the screen it could be worth a try. I found a couple of sellers on Ebay shortly after Christmas and considering what the phone cost, to me it was worth it to replace the screen but maybe not twice, thus my little joke earlier. There are tare down videos on YouTube if you need that kind of help.
Just checking in to see how things were going and if you tried anything? When my screen cracked I put a tempered glass screen protector on it to prevent any further damage and to prevent finger damage from the small shards that develop in the cracks. I had another phone I used tape on to pull the shards out and it ended up ruining the digitizer so this time I just covered everything up and moved on best I could. Looks like the seller I got my replacement still has some if you're thinking about replacing yours. It says New Condition but mine had definitely come from some device but whom ever removed it did an excellent job because it arrived very clean and ready to install. Getting the old screen off was the hardest part, well and finding the right adhesive to glue it back on. I wasn't able to find the G7000 glue but used F6000 which I found easily. I haven't had any issues with it since. If you want to know more about how I did it check out my thread in this forum. Here's the link to the seller.
https://www.ebay.com/i/264102656067?chn=ps

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