Screen Replacement leads to blank screen - General Questions and Answers

I have a Blu Studio Energy (D810U, I believe). I went to a lot of trouble getting a ROM that had the fewest bugs, but once I did, it worked well until I lent it to a "friend" who promptly smashed the screen. Not just the digitizer but the LCD as well.
I ordered a screen replacement and swapped out the screen. I've done this before, so no sweat - at least until I turned on the phone and found that while it was reading touch input and the backlight was on, there was no picture on the screen. It responded by vibrating when I pressed the capacitative keys on the bottom, and when I pulled the screen slightly out with a suction cup the edges of the LCD were lit up. I removed the assembly, replaced it repeatedly, and finally bought a new screen assembly and put that in. Every time, I had the exact same results.
Does anybody have any idea what's going on here?

Related

Replacement Screen Problem

I cracked my screen a few months back, and right after it happened I bought a new digitizer to replace the cracked one. The install didnt go very well, since the tape used to adhere the digitizer to the LCD got mangled during removal of the original digitizer. Dust ended up getting between the LCD and Digitizer etc. One other problem I ran into was that the LED's that are supposed to illuminate the home/menu/back/find buttons were now shinning up into the screen and washing it out.
Anyways I got fed up with the dust and bought a new fully assembled screen/digitizer off ebay. I installed it last night and everything is great except that the lights are still shinning up through the glass and washing out the lower inch of the screen. I dont see why this would happen as there is really only one way to put it all back together.
Any insight as to how to get the lights to stop doing this?
Thanks!

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?

Motorola Canada repair services (Futuretel)

Woke up this morning, check texts on my G which works fine, pocket it (front left pocket, screen facing my leg, nothing else in there, loose fitting pants), go to work, check it about an hour later, can't undo my screen lock, touch screen is acting all wonky, I'm not even touching it and I keep seeing wrong input over and over... so I turn it off and back on, but I still can't use the touch controls on the left part of the screen (the left and center row of the lock screen doesn't respond, the right most one does, and the very bottom emergency calls does).
So I carefully inspect my phone, there is not a single mark on the screen, bezel, back-plate... the phone is in pristine condition, I take good care of my electronics (or so I thought). I start checking the screen against a light at various angles and on the bottom, slightly under the lock screen dots, I see a very thin line under the glass but above the screen, starting at one edge and going about halfway across. Like the touch sensor is partly cracked, but nothing else is?
So I was wondering, does this count as physical damage? I don't see how it could. As I said, the phone is pristine and I can't imagine how I could have damaged the touch sensor without leaving a mark on the glass, bezel or screen.
But I'm still worried that Futuretel, which is where the Motorola people are telling me to send the phone will call it physical damage and have me fork over 150$ for a repair I could do myself for 50~60.
And I would do it, had I actually broken my phone... But I didn't, so I don't feel I should pay for this at all.

[Q] color issues after screen replacement

I replaced my nexus 5 screen after cracking it with a new lcd, digitizer, and the frame from amazon. tested the screen before re assembling the whole unit and all looked great. after getting it all buttoned up i found that after the screen sleeps and comes back on the colors are very distorted. Rebooted the phone and the color is accurate again, but again after the screen sleeps and comes back on the colors are distorted. I then tore it back apart installed my old crack screen and all is fine again. I am looking to see if anyone has come across this. I am assuming it is a bad display, but would like to see if anyone has any other suggestion on a possible problem before i return the display.
Bump: just because i'm returning the replacement screen tomorrow and ordering another if no input.

Strangest screen problem I've ever seen. Would this be a broken displayor broken GPU?

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!

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