Mate 8 screen not working even after replacing it - Mate 8 Q&A, Help & Troubleshooting

Hello,
My Huawei Mate 8's display got suddenly broken while I was using it. The screen remains blank whatever I do. However the phone seems to work as the notification led blinks because of my unread messages. And when I press on power button for several seconds, it vibrates so I know it reboots.
I bought a new LCD replacement screen to a well rated ebay seller. I tried to connect the new lcd to the phone's connector, but it remained blank.
It is unlocked, rooted, with a custom rom, but I hadn't done anything on system for about one year. I tried power+VolUp+VolDown to enter in fastboot mode but it remains blank. It really seams to be a hardware failure, but not from lcd part.
- The original screen frame was white but the new one is black. Do you think it may be incompatible?
- Is there a part other than screen and complete motherboard I can replace to have my Mate 8 work again?
Thank you.

I can only answer to this: "The original screen frame was white but the new one is black.". It has nothing to do, my phone was white i changed to black frame and works fine without problems.

Thank you
spid1005 said:
I can only answer to this: "The original screen frame was white but the new one is black.". It has nothing to do, my phone was white i changed to black frame and works fine without problems.
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Click to collapse
It was an hypothesis but I was nearly sure it was false. But thank you for your confirmation.

Related

[Q] Nexus 5 screen showing colorful static

Has anyone come across this before? I was watching a video on MX Player not too long ago, and it seems to have resulted in a permanent colourful static for the phone.
I can't really tell if it's doing anything, but when I go through the motions of resetting it or booting into bootloader, the screen does not change at all.
Interestingly the volume buttons are still working, and if I press the area of the screen where I think the buttons are (e.g., the back/home/programs buttons) I get the right vibrations. Which leads me to believe my screen is broken, and that it's a hardware fault. I'm hoping pretty hard this isn't the case, as my phone is only two months old and it was a replacement for a 6 month old Nexus 4 which had stopped charging.
Anyone come across this before? I'm hoping there's a kind of solution somewhere out there... To make matters worse I bought this phone via a parallel importer AND I'm currently overseas and won't be back till the end of January.
Sigh. Photo of screen is as attached - please forgive the terrible quality as I had to use my laptop webcam.
Thanks in advance, everyone!
jono_nz said:
Has anyone come across this before? I was watching a video on MX Player not too long ago, and it seems to have resulted in a permanent colourful static for the phone.
I can't really tell if it's doing anything, but when I go through the motions of resetting it or booting into bootloader, the screen does not change at all.
Interestingly the volume buttons are still working, and if I press the area of the screen where I think the buttons are (e.g., the back/home/programs buttons) I get the right vibrations. Which leads me to believe my screen is broken, and that it's a hardware fault. I'm hoping pretty hard this isn't the case, as my phone is only two months old and it was a replacement for a 6 month old Nexus 4 which had stopped charging.
Anyone come across this before? I'm hoping there's a kind of solution somewhere out there... To make matters worse I bought this phone via a parallel importer AND I'm currently overseas and won't be back till the end of January.
Sigh. Photo of screen is as attached - please forgive the terrible quality as I had to use my laptop webcam.
Thanks in advance, everyone!
Click to expand...
Click to collapse
Only time I've seen something like this was when my integrated graphics card on my desktop overheated, everything still worked, but colorful static everywhere. I'd let it cool down for a while, chances are it was pretty hot when it did that, and see if high temps might make it happen again.
I just had the same thing happen. Phone had been in my pocket and I had just taken it out to check the time maybe 10 minutes before it happened. The only difference with mine was I bumped into a table and hit the phone in my pocket. It does have a case on it and there is no sign of damage at all such as a cracked screen or anything. The static only lasts for a few seconds and thats right after I force it to reboot. After that it just goes to an all black screen. My LED indicator light is still flashing at me telling me I have an email though so I'm not sure what the deal is.
Were you able to resolve this issue? I too just experienced this issue as well and my phone is currently unusable. Thanks!
Do a full wipe as in wiping the entire phone and making it as if you just got it out of the box. if it persist RMA
Sent from my Nexus 5
Hi, I broke my screen (really bad smash) and had have this static on my new screen. The new screen was apparently fully tested. When using the slim port i can display on my TV and the digitizer works fine, its just this same colour static on the handset. I am now waiting for a replacement USB flex (it was a bit bent in the break) and i expect the new USB flex will fix it. If not then its a bad screen.
Will post the results when i get the parts
Fixed!
Hi,
My new USB flex arrived today. I installed it and found my screen is working perfectly.
The first pic is the same colour static that the op had.. Second one is the USB flex board / ribbon. Ebay for 20 Euro. Please remember that USA users are LG D820 and Europe/rest of works LG D821. I think its important for this part as the aerials connect here ans they are different in USA.
Good luck everyone
zeebo1111 said:
Hi,
My new USB flex arrived today. I installed it and found my screen is working perfectly.
The first pic is the same colour static that the op had.. Second one is the USB flex board / ribbon. Ebay for 20 Euro. Please remember that USA users are LG D820 and Europe/rest of works LG D821. I think its important for this part as the aerials connect here ans they are different in USA.
Good luck everyone
Click to expand...
Click to collapse
Hi,
sorry for reopen the topic but I really need to know if change de USB flex solve this problem
thanks
Static screen and freezing
Hi All,
Need help here with my 6 month old Nexus 5. It has been pretty good with no issues but since last evening, it started behaving weird. The chronological events are as follows
1. While browsing on Chrome some websites were not scrolling intermittently. This was only in the browser.
2. After about 10 mins of the above behavior the entire phone froze and didn't release itself. I had to force reboot by holding the power button down for about 10 secs. When the screen came on, it was the static screen
3. I again pressed the power button a couple of times but no use. Held it again for 10 secs, then phone rebooted and everything was fine.
4. Continued to use the phone and everything was normal until this afternoon, when the phone again froze while browsing a website
5. Since then the phone screen shows the static and if I press the power button once, the screen switches off and press again the screen comes on with the display showing properly. I can now only perform one touch which is registered and the screen freezes. If I switch off and on again the next screen / action is shown which is the action I did in the previous touch. Every time it registers one touch and I have to switch off and on again to see the next screen. Sometimes the phone just shows static and I have to wait a few seconds (30 sec) before using it again.
6. If I make a call to my phone, I hear one ring and then it is busy tone like I've cancelled the call. However the phone does not show the incoming call.
My phone has been intact and is well protected with screen guards and case. There is no physical misuse / abuse of the phone. I managed to shut down the phone and enter recovery. Here as well it only registered one touch, though the phone was processing and moving the next step. I somehow managed to initiate a factory reset through the settings, but no use.
Now in about 2-3 hrs the phone has become completely useless. I'm uncertain what the problem is, all my touch inputs are registered and processed. The screen just doesn't refresh to the next and requires a power off/on. I picked up this phone in the US and now in India. So I can't RMA the phone and I don't have warranty for this in India.
Any suggestion will be greatly appreciated.
Madzy said:
Hi All,
Need help here with my 6 month old Nexus 5. It has been pretty good with no issues but since last evening, it started behaving weird. The chronological events are as follows
1. While browsing on Chrome some websites were not scrolling intermittently. This was only in the browser.
2. After about 10 mins of the above behavior the entire phone froze and didn't release itself. I had to force reboot by holding the power button down for about 10 secs. When the screen came on, it was the static screen
3. I again pressed the power button a couple of times but no use. Held it again for 10 secs, then phone rebooted and everything was fine.
4. Continued to use the phone and everything was normal until this afternoon, when the phone again froze while browsing a website
5. Since then the phone screen shows the static and if I press the power button once, the screen switches off and press again the screen comes on with the display showing properly. I can now only perform one touch which is registered and the screen freezes. If I switch off and on again the next screen / action is shown which is the action I did in the previous touch. Every time it registers one touch and I have to switch off and on again to see the next screen. Sometimes the phone just shows static and I have to wait a few seconds (30 sec) before using it again.
6. If I make a call to my phone, I hear one ring and then it is busy tone like I've cancelled the call. However the phone does not show the incoming call.
My phone has been intact and is well protected with screen guards and case. There is no physical misuse / abuse of the phone. I managed to shut down the phone and enter recovery. Here as well it only registered one touch, though the phone was processing and moving the next step. I somehow managed to initiate a factory reset through the settings, but no use.
Now in about 2-3 hrs the phone has become completely useless. I'm uncertain what the problem is, all my touch inputs are registered and processed. The screen just doesn't refresh to the next and requires a power off/on. I picked up this phone in the US and now in India. So I can't RMA the phone and I don't have warranty for this in India.
Any suggestion will be greatly appreciated.
Click to expand...
Click to collapse
I'm getting the same issue. Tried soft and hard reset. Opened her up and seated all cables. The issue is still persisting. Is replacing the USB flex the way to go?
Hey I have a nexus 5 32GB and the screen started to do weird things and now it isn't working at all. Its the same in recovery mode also do I think that it's not a software problem.
I think there is an issue with the motherboard. Please help me out.
Thanks in advance.
nexus565 said:
Hey I have a nexus 5 32GB and the screen started to do weird things and now it isn't working at all. Its the same in recovery mode also do I think that it's not a software problem.
I think there is an issue with the motherboard. Please help me out.
Thanks in advance.
Click to expand...
Click to collapse
Most likely the flex cable
ふかつどう
Anyone seen this colored screen?. I have been getting this past 2 weeks when phone is charging and screen is about to turn off. I am on stock not rooted.
bullorbear said:
Anyone seen this colored screen?. I have been getting this past 2 weeks when phone is charging and screen is about to turn off. I am on stock not rooted.
Click to expand...
Click to collapse
Looks like the daydream function. You can turn it off in Settings>Display>Daydream
Sent from my Nexus 5 Unchained using XDA Free mobile app
Same thing, Screen now black. Won't turn on...
Hey everyone, I know that this is kind of late to the thread, but I have what I believe is the same problem as everybody else here. I had my Nexus 5 in my pocket for maybe five minutes, and in between the times that I put it in my pocket and took it out again to reply to a text, the screen went all colorful and static on me (Red tint, almost as if I had twilight on, but I didn't). I tapped the back, and the colors went back to normal, but the digitizer wasn't responding to touch. Then, It went black. No color, the speakers weren't working, neither was the backlight on the display. I took it apart, and figured its either the USB flex cable (which looked frayed), or the mainboard. If its the USB flex cable, then I know I can repair it. If it's the mainboard... well, as a sixteen year-old who has no current source of income, I'm out of a $400 phone.
Pictures attatched. Thanks!
rikudo said:
I'm getting the same issue. Tried soft and hard reset. Opened her up and seated all cables. The issue is still persisting. Is replacing the USB flex the way to go?
Click to expand...
Click to collapse
I took the phone the LG service center and the technician seemed to know this issue and immediately said that the USB flex cable needs to be changed. The entire fix took about 5 mins and the phone is working fine since then.
Sorry for the delayed response.
I hate to necro up this thread but I'm having similar problems to the op with my nexus 5. About two weeks ago I saw my screen get grainy just like the op and many others mentioned and then the screen went completely black. The screen still "turns on" but it's just black with the backlight on. I can hear notifications and other things and I'm hoping that all I need to replace is just the flex cable. If it's a problem with the logic board then I'm screwed basically.
Anyway that's my story. Bought the flex cable and it'll be here by tuesday so I'll find out then if I'm lucky or not. Fingers crossed.
pezkiln said:
I hate to necro up this thread but I'm having similar problems to the op with my nexus 5. About two weeks ago I saw my screen get grainy just like the op and many others mentioned and then the screen went completely black. The screen still "turns on" but it's just black with the backlight on. I can hear notifications and other things and I'm hoping that all I need to replace is just the flex cable. If it's a problem with the logic board then I'm screwed basically.
Anyway that's my story. Bought the flex cable and it'll be here by tuesday so I'll find out then if I'm lucky or not. Fingers crossed.
Click to expand...
Click to collapse
Hey man, did you ever try this out and get it to work? I have the same problem and was thinking of trying this out but wanted confirmation first.
Thanks!
Just wanted to post here to say that this thread just saved me a lot of money!
Had the same issue (static showing on the screen). Local phone repair shop told me it needed a new screen, without even looking at it(!), and it would be £120 + labour. Told them I would think about it, and came home and did some more research, found this thread. Ordered a replacement USB flex cable from eBay, and fit it by following a YouTube tutorial, and now the phone is back working fine. brilliant!
Thanks xda!
I had a problem where my screen looked like an old CRT TV with particles flashing all over on anything with a static dark background. Any ideas

Screen randomly turns off but phone still on, backlight often stays on

Hey guys, i'll try to explain the situation as best i can below, hopefully someone can work out what is wrong.
My phone is about 16 months old. About 2 months ago i dropped it twice within the space of a couple weeks. There were a few cracks along the screen, however it wasn't very noticeable and i wasn't going to bother having it fixed. The problem started a couple of weeks ago when i went to grab it out of my pocket, however i found out the screen was black and it wouldn't turn on. I don't really know how to describe it but it was acting very strange...
- The screen would have white/gray bars all over it then turn off, then it would do the same with very thin vertical lines that were white/gray/other colours...
- When i get the screen on, it generally turns off again within 30 seconds, however it can stay on for a few minutes.
- If the screen is on and i press the lock button, it almost certainly won't come back on.
- Restarting the phone or holding the power and volume button nearly always gets the screen to come back on. It often then restarts but turns off again shortly after.
- The phone is otherwise still working when the screen goes off; the notification light stays on and i hear messages etc coming through
- The backlight often stays lit, revealing a gray screen opposed from total black. Sometimes it does not stay lit however.
- When the screen came on it was often unresponsive to touch
I had the screen replaced yesterday by a phone repair shop and the phone is still not right. I have factory reset the phone and also wiped the partition cache. Other than that it is still not working. IT seems to be working better... The screen always seems responsive to touch when it is on, and it doesn't seem to be turning off as often. It generally starts up and works fine when i start up by holding the power button and down volume button together... However even still it sometimes just flashes up with a few thick white/gray and black lines on the screen..
Does anyone know what can be causing this and how i can resolve it? If you need any more information please let me know and i will try provide it. I could try get some pictures of what the screen is doing when i finish work. Thanks guys, i appreciate any input.
EDIT: I managed to get a pic of what i mean by the thin vertical lines all over the screen. This just appeared when i tried to restart the phone after it the screen had once again stopped working. The imgur link is gIFMGD6
Anyone have any ideas?
Hey, did you ever figure this problem out? My phone just started doing the same thing. Can't find much info about it.
angrysammich said:
Hey, did you ever figure this problem out? My phone just started doing the same thing. Can't find much info about it.
Click to expand...
Click to collapse
Yeah, i had the screen fixed hoping it would fix it, however that didn't work. Turns out it was the motherboard, don't know what was wrong with it in particular other than it was simply going faulty. Had someone replace the motherboard on it for $50 and have had zero problems since! Hope that helps you.
Thanks for the response. I tried replacing the screen too with no luck. Unfortunately the same place that replaced the screen said it would cost $400 to replace the motherboard!!! The phone cost less than that so it looks like I'm gonna buy a new one.
ClangaBanga said:
Yeah, i had the screen fixed hoping it would fix it, however that didn't work. Turns out it was the motherboard, don't know what was wrong with it in particular other than it was simply going faulty. Had someone replace the motherboard on it for $50 and have had zero problems since! Hope that helps you.
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Click to collapse

Nexus 5 display multicolored dots and black screen

Hey guys,
my phone felt on the floor and the screen was broken. Unfortunatly also the display showed just colored dots. So I bought a display on ebay replaced it and it worked fine. After a few days the screen started to flicker and after one day the screen was completely stuck. It showed the same pattern (colored dots like on the TV) like it did before. I made a hard reset and it worked again. After a few days the same problem. Then i read that i should replace the USB Flex cable. I did it but still nothing is better.
As I said, when I make a hard reset it works for a few days/hours and then I end up with a colored or even completly black screen . The digitzier seems to work because it reacts to touch gestures. Also the phone itself works (gets messages etc.) while the screen makes the problems.
Could you help me out here or give me a hint what I could test to find out what I realy have to replace?
THX

Screen doesn't work. (story)

I am a Nexus 4 user. My brother sent me this Nexus 5 to me, but had problems with its screen. Sometimes it wouldn't show anything, other times it would show white lines and other times it would press things on my screen while showing some white lines. Some punches fixed the issue, but it wasn't a permanent solution.
Today, I opened the back cover, removed the battery and EVERYTHING else. Afterwards I cleaned it up with some cotton pads safely and without any force and attached the parts. When I pressed the power button, it didn't show the Google logo because I had forgotten to attach a wire. When I saw it, I attached the cable and it worked; it showed the Google logo, booted up to the part where I can see my lockscreen but then it went black.
When I tried to turn it on, it wouldn't show anything. I didn't destroy anything(imho) during the procedure. The LED light is yellow when I attach it to a USB(meaning it charges) and Windows 10 recognizes it when I connect the phone to the PC(a message pops up saying Nexus 5 was connected). "adb devices" shows the devices.
Is it the screen? I have un-screwed it a thousand times. Do I have to replace the screen+digitizer?
Because the screen wasn't working properly to begin with, it was probably defective and on its way out.
I recommend getting a cheap third party screen from eBay or Aliexpress. The third party screens aren't as good as an oem screen but the price is good for what you get in my opinion.
audit13 said:
Because the screen wasn't working properly to begin with, it was probably defective and on its way out.
I recommend getting a cheap third party screen from eBay or Aliexpress. The third party screens aren't as good as an oem screen but the price is good for what you get in my opinion.
Click to expand...
Click to collapse
Thanks for the reply. http://www.ebay.co.uk/itm/Full-Asse...065754?hash=item4ae8029eda:g:gaIAAOSwrklVJian
Is that good? The price is fine imho(we use euro but it will be +3-4 on the price converted from pounds).
Btw, I forgot to mention that sometimes the screen shows the backlight but doesn't display anything.
Sounds like the phone needs a new screen. Also check Aliexpress for screens. I find the prices a bit better than eBay.
Sorry to revive an old thread...
I have the exact same issue. What really bugs me is that the screen is only ~2 weeks old. Worked fine for a while, then I pulled it out of my pocket one day and only the backlight worked. LED blinked, phone vibrated, showed up in ADB, etc. - it was on. Only the backlight showed though. It worked when it booted up, and I got it to go into recovery. I reflashed my ROM, and it worked for about fifteen minutes after that. Now, it doesn't show anything at all (not even the backlight).
Did you just end up getting a new screen? Maybe I should just get a new phone... the cell radio also seems to be going out.

Nexus 5 - trying to repair it. Screen? Other issue?

Hi
I am trying to fix my Nexus 5. Couple months ago I dropped a mug on the phone. The result: cracked screen. I ordered a new screen with the whole front housing so only thing I had to do was remove cracked screen with frame and replace it with new one. When I did it I turn on the phone but I saw only a short blink of the screen. After lots of attempts of I came to conclusion that I probably damaged the new screen or it was already damaged. So the screen is black. When I plug the phone to PC everything works perfectly. I can browse the memory etc.
I would like to ask you whether my conclusion is correct and the only issue is the screen which has been damaged by me or the seller.
One more thing is that when I charge the phone or it is attached to the PC beside the black screen I can not also see any light from notification led.
Best
micro
If the old screen can still display an image, move the parts back to the old screen to check for issues.
HI. Thx for reply. I don't remember whether cracked screen was functional in terms of displaying image. I will try to attache the old screen and will let you know.
Best

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