Screen not working? - G2 and Desire Z Q&A, Help & Troubleshooting

So my screen hasn't been working for awhile (the backlight will light up but there is only black), but the phone still works; I can play music when I press where "play" should be on the lock screen, and etc. I've only recently decided to try and replace it.
I ordered a screen from eBay and it arrived today... here's where it gets interesting. After replacing my old LCD screen with the new one, the screen no longer lights up. I took it apart again and made sure I didn't miss any connections, but everything seems in the right place. Does this mean the problem is not the screen? Or maybe a faulty replacement screen? Any ideas?

Related

Screen died?

Last night I was out and during the night I pulled my desire z out of my pocket to find that the screen was dead, the soft touch buttons were still lit up and working but no display. I pulled the battery and tried to reboot and no luck, you can hear it booting and even unlock/receive calls and txts etc once it has booted up just the screen stays blank the whole time so have to do everything on feel.
Essentially does this just mean my screen has a hardware fault? is it worth trying to fix? I assume the only option would be to purchase a replacement screen and dissemble and reassemble it?
(warranty is not worth it as I live in New Zealand and would have to send my phone back to the UK where I bought it from, also I have dropped it quite a few times so probably voided anyway...)
Thanks in advance for any input
Does it never display anything? So not even a flash during boot or something?
Because then it is probably a hardware problem.
Since the soft touch buttons do still work I think there might be a little crack or something in the flat cable that connects the bottom half with the top.
Maybe you could check whether you can see if the cable is broken or not?
The best thing to do then is to look for a replacement and try to fix it yourself or bring it to a shop where they can do it for you.
No it never displays anything, completely dead the whole time. The touch input is still working though as I answered a phone call this morning on it by making the usual gesture just without being able to see anything. Doesnt seem to be anything wrong with the cable itself as far as I can see. Yea might have to get someone to have a look at it.
My phone is acting the same. I dropped my phone in the pond before, but pulled battery out on time and had it in rice for a day. My phone was still working for about two weeks after that incident. I dropped it and had one little crack at the top of the screen and about a week after that it died when I had a water balloon fight with the phone in my pocket. D;
Do any of you know if the replacement lcd screen/digitizer for the Desire Z would work for the G2?
I had the same thing happening to my G2 screen, only it was intermittently working for a little while, then just completely died and wouldn't work. It was doing this crazy flickering thing then the back light wouldn't go on at all. If I held the phone at a certain angle in the sun, I could see that the pixels were indeed working on the display, but there was no backlight to make them normally visible.
So I purchased a replacement screen from ebay and carefully followed the directions on a youtube video for a G2 take apart. Its not a hard task to take apart and get down to the screen itself. It was rather easy. After putting it back together the screen still didn't work! Sounds work, i can also receive calls etc. But the screen still doesn't work!
Is there any way that this could be a software issue?
Oh and PS, I believe the LCD replacement would work for both the desire Z and the G2. They are identical phones after all right? I'd say its a safe bet. The screen I bought was only 35 bucks. Didn't think that was a bad deal.
Another dead screen or something else?
Few days ago my phone fell of the couch onto a rug - no big deal, so far it has survived much worse, but when I picked it up, the colors were all messed up - overly green and red. Tried restarting - no luck. Everything worked fine, except the colors, but then the screen turned of completely. I could hear notifications, phonecalls, but the screen was dead. After some tapping on the screen, it turned on again - with ****ed up colors. Then started flickering and was gone again. Few more times I could turn it on by tapping before it was dead for good.
Figured, after all these drops it survived, maybe the screen connector is a bit loose. I mean, I could sometime get a contact when tapping it, so I dissasambled it completely, secured all the connection, put it all back tougether and fired up - same thing: dead screen, phone working.
Has anyone had such problem before? Is it screen that is dead, or connector or... I have no clue... I would like try to fix it on my own, with some replacement parts I could get on ebay - but, what gave?

[Q] Replaced the screen, still same issue

My att i747 s3 was water-damaged and I believed the screen was broken. I was able to view the screen if I connected it to a PC and even could control it, despite the screen being black. I noticed it actually had a very dull flicker of what was supposed to be displayed. I replaced the whole screen assembly and the problem persists. Any ideas?
I'm guessing It'd just be best to buy a whole new phone but if there's another option I would love to hear it.

Screen not working. Touch does work. Not cracked. Not busted. Ideas?

So I dropped my S3 during the 5 minutes it took to take it out of it's case and wipe some under-the-protector dust off.
When i picked my phone back up the screen would not come on. Out of curiosity my wife called me and the screen lit up and worked, except everything had a green tint. Worked fine (other than green tint) for about 3 hours until we went to bed.
I life it on the charger all night and the alarm woke me up in the morning, but the screen would not come back on.
It's been 3 days and still no screen.
Touch still works fine. I can receive calls by swiping. I can press power and swipe to unlock and use SVoice to make calls.
What could cause this? Is it possible for the LCD to go out without the touch? Is it possible for the LCD to go out without busting (when it was green, it was a clean screen, no hints of shattering)? What is the most I should be willing to pay, without getting ripped off, to have it repaired?
Yes it is very possible to only damage the LCD. You'll have to replace the whole assembly, around $120 for the part. Probably still a good bit more to use a repair service. Or buy a used device on eBay and swap parts.
Sent from my SAMSUNG-SGH-T999 using Tapatalk

Grainy white noise screen with working touch input

Hi,
I have to following problem:
My HTC One M8 has colorful grainy static screen and sometimes the picture turns off, like a cable is loose. I read all the forums and search google all over for a solution, most of them claimed that after a panel replace it will be fine. I switched the whole front panel for a new one, but after assembly i have the same problem. The phone is working, because i can unlock the screen lock, turn off the phone, i get the notifications and everything, but the screen is just static noise. I'm assuming that maybe it is some graphic fault, but not related to the lcd panel or the cables (they are all brand new, and i double checked all of them). Is the logic board responsible for the image? What should i try to replace next the upper motherboard, or the middle logic board?
Shad
pic related
imgur . com/a/kjR6F
Oldai3912 said:
Hi,
I have to following problem:
My HTC One M8 has colorful grainy static screen and sometimes the picture turns off, like a cable is loose. I read all the forums and search google all over for a solution, most of them claimed that after a panel replace it will be fine. I switched the whole front panel for a new one, but after assembly i have the same problem. The phone is working, because i can unlock the screen lock, turn off the phone, i get the notifications and everything, but the screen is just static noise. I'm assuming that maybe it is some graphic fault, but not related to the lcd panel or the cables (they are all brand new, and i double checked all of them). Is the logic board responsible for the image? What should i try to replace next the upper motherboard, or the middle logic board?
Shad
pic related
imgur . com/a/kjR6F
Click to expand...
Click to collapse
I've got the exact same thing here.... Searched a lot around without finding anything that has resolved my case. I ordered a replacement screen for a cracked screen on the first phone, but when I tested the LCD before I assembled everything together it was showing just noise like in your picture. I assumed the LCD was bad, so I ordered a new one. But the new one was acting exactly the same.
Yesterday, I was approached by another one who needed help with their M8, and that phone needed to have its volume buttons replaced. So, I reused the parts from the old M8, but when I booted the phone after repair, it showed this same noisy screen as the first M8 I tried to repair. Anyone here that knows these phones and what is going on here? I'm pretty sure I have 3 working LCD's here now, and suspect something strange going on with the mainboard or controller for screen.
Anyone?

Nexus 5x screen replacement problem

After screen replacement of my nexus 5x it worked the first time. After a couple of minutes suddenly the screen at the bottem became very hot and the screen stopped working when trying to poweroff/on again.
Since then I'm not able to make it work again.
When trying to poweron it is a backlit black screen that becomes hot at the bottom ( where the headphone jack is sitting )
Could this be a connection problem or is the digitizer simply broke ?
Rgrds,
Bump.
After replacing my screen I got a "fizzle" noise and the regular beeping. Then turned backlit black and got very hot. I had no idea WTF was going on with it. So I put my cracked screen back on and everything is back to normal. But I would like to get that new screen on permanently.
Any tips on this would be helpful thanks in advance.

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