Question black recovery mode screen - Samsung Galaxy A12

I have the A12. It was a Verizon phone but it was unlocked and I'm using it with a Tracfone sim. I recently replaced the screen and frame. The screen and frame came from an eBay seller. I've been having some odd problems like ghost touching while on a phone call and a screen showing only glitchy looking lines when I turn my phone over in the morning to wake it up. Someone suggested to me I run the graphics test option found in the recovery menu. I tried to get in to the recovery menu by holding power and volume up but I only get a black screen after seeing the Samsung logo. The screen appears to be off and not lit. Is there some other trick to getting the recovery menu options to show? I'm fairly certain I am in recovery menu because while the screen is blank, if I briefly press the power button, the phone restarts. I have tried blindly pressing volume down the number of times needed to access the graphics test menu but still nothing was displayed on the screen. One time when I was trying to figure this out the phone showed at the top of the screen something like Entering Fastboot Mode. So, it seems the menu is there but it won't display. Do I need the original screen for the menu to show? Or, is there a trick to getting the menu to appear regardless of the screen maker?

I just checked this by re-attaching the original broken screen. With the original screen I am able to see the recovery menu. When using the replacement screen from eBay I am unable to see the recovery menu.

tabletmonkey said:
I just checked this by re-attaching the original broken screen. With the original screen I am able to see the recovery menu. When using the replacement screen from eBay I am unable to see the recovery menu.
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Click to collapse
Just go buy a new screen, that is a good screen, not a bad one, like from ebay. (I suggest getting it from amazon instead)

TheWorldYT said:
Just go buy a new screen, that is a good screen, not a bad one, like from ebay. (I suggest getting it from amazon instead)
Click to expand...
Click to collapse
I paid for the more expensive one from eBay. One that came with the frame. I thought that might increase my odds of getting something that would work like it is supposed to. That didn't work out. Per your suggestion I searched Amazon again for a screen replacement. The prices for the screens there are about half of what I paid for on eBay and the reviews don't look so good. Having said that I know people can be idiots and give bad reviews that aren't deserved. It's not like I've been replacing screens for years but it seems like screens are kinda replaceable but kinda not really. I mean, you can do it but your phone won't be the same. Even if my screen purchase had worked out I probably still ruined my phone's IP rating. I did try to transfer all the little gaskets that I could but some weren't coming off the old frame. Really, I'm annoyed about the whole thing and wishing phones were more repairable.

Related

[Q] Possible boot problem?

Hi folks,
I suspect I'm having what some people around here appear to refer to as a Hboot problem. But this is my first Android phone, and I couldn't know any less about RUUs or booting or roms or anything like that. I'm posting a new thread because it seems like anyone who had a problem like mine had tried to, or wanted to know how to root their device. I didn't do that and am not trying to, but I've still got these problems.
I bought the phone "new", and it came in just today, from eBay, supposedly in a sealed box. Maybe that's part of the problem, I'm not sure. All I've done is: turn it on, install some apps, get in over my head with Apex launcher, and try to update Android.
I chose update from the menu, left my phone plugged in, and when I came back to it, nothing was on the screen. I pressed power, and it showed a screen similar to the first image (black screen, phone icon, green arrows in a circle). I assumed it was installing. I let it be and came back to the white screen with the numbers and barcodes. I panicked and chose "recovery" from the menu, and after a reboot it seemed to be back to normal.
However, just now, as I was attempting to reboot the phone due to not having any volume, I again got the white screen followed by the green arrows and finally the red warning icon.
Somehow or another, the phone resets itself and comes back on, but where is this coming from? Did I do something wrong? What does the screen mean, and did I get hosed by my seller? Thanks all
zbo-50 said:
Hi folks,
I suspect I'm having what some people around here appear to refer to as a Hboot problem. But this is my first Android phone, and I couldn't know any less about RUUs or booting or roms or anything like that. I'm posting a new thread because it seems like anyone who had a problem like mine had tried to, or wanted to know how to root their device. I didn't do that and am not trying to, but I've still got these problems.
I bought the phone "new", and it came in just today, from eBay, supposedly in a sealed box. Maybe that's part of the problem, I'm not sure. All I've done is: turn it on, install some apps, get in over my head with Apex launcher, and try to update Android.
I chose update from the menu, left my phone plugged in, and when I came back to it, nothing was on the screen. I pressed power, and it showed a screen similar to the first image (black screen, phone icon, green arrows in a circle). I assumed it was installing. I let it be and came back to the white screen with the numbers and barcodes. I panicked and chose "recovery" from the menu, and after a reboot it seemed to be back to normal.
However, just now, as I was attempting to reboot the phone due to not having any volume, I again got the white screen followed by the green arrows and finally the red warning icon.
Somehow or another, the phone resets itself and comes back on, but where is this coming from? Did I do something wrong? What does the screen mean, and did I get hosed by my seller? Thanks all
Click to expand...
Click to collapse
to get to the bootloader menu (the white one with the pink writing), you have to reboot and allow it to boot with the volume down button held. It looks like your volume rocker is getting stuck on down - given that you are losing volume and it keeps booting into the bootloader menu. If it is in a case, try removing it from the case and see if the issue persists.Otherwise, it is likely a hardware issue. so you should return it for a warranty repair/replacement (as you said you bought it new in a box).
codeprimate said:
to get to the bootloader menu (the white one with the pink writing), you have to reboot and allow it to boot with the volume down button held. It looks like your volume rocker is getting stuck on down - given that you are losing volume and it keeps booting into the bootloader menu. If it is in a case, try removing it from the case and see if the issue persists.Otherwise, it is likely a hardware issue. so you should return it for a warranty repair/replacement (as you said you bought it new in a box).
Click to expand...
Click to collapse
You coulsnt be more wrong I'm [email protected] op ill get you back up and running in a sec
tactical kitten said:
You coulsnt be more wrong I'm [email protected] op ill get you back up and running in a sec
Click to expand...
Click to collapse
lol!
tactical kitten said:
You coulsnt be more wrong I'm [email protected] op ill get you back up and running in a sec
Click to expand...
Click to collapse
Kitten - what do you think is the problem? The OP says they lost volume and they keep rebooting into the bootloader. The stuck volume rocker sounds like the easiest way to explain both issues. I might be wrong, but not given the symptoms listed in the OP. If more information is required to diagnose the issue, we can at least start by eliminating the obvious.
codeprimate said:
Kitten - what do you think is the problem? The OP says they lost volume and they keep rebooting into the bootloader. The stuck volume rocker sounds like the easiest way to explain both issues. I might be wrong, but not given the symptoms listed in the OP. If more information is required to diagnose the issue, we can at least start by eliminating the obvious.
Click to expand...
Click to collapse
Thank you very, very much - I believe that's exactly the issue. I had no idea pressing the volume down button during a reboot would get you to that menu, but I am using the Trident Kraken case which apparently has an issue lining up with the volume down rocker on this particular phone.
I will try to reproduce the problem sans case to make sure, but this sounds absolutely right. Thanks for helping a complete newbie - I don't think I'd ever have put that together. I was very worried I'd been sold a bill of goods.

[Q] White screen of death?

Has anyone encountered the following issues with their SHIELD?
Mine was working just fine after updating to 4.3 and rooting with CWM. I performed multiple reboots in this configuration, played games, etc. - everything was fine.
I had a pretty busy weekend so didn't touch the SHIELD at all for a few days. When I got back:
When I opened it up, I saw the screen backlight turn on but nothing displayed on the screen. The SHIELD button was glowing green.
I long-pressed the SHIELD button to turn off the device. When I turn it back on, I get a white screen that is dark around the edges (mostly vignetting around the corners). The brightness of the screen here and degree of vignetting seem to change every time I try and turn on the device.
If I enter fastboot mode via the key combo, the same thing happens - white vignetted screen. The device DOES appear to enumerate as a fastboot device on my PC in this configuration.
At one point I figured it might be due to a low battery, so plugged it into the charger. 30 minutes later, when I opened the lid, I actually came up to a launcher screen with 65% battery.
However, after closing the lid and reopening it again - black screen again, with the "white vignette of death" coming back if I reboot.
Has anyone else seen similar behavior? Searching results in no one complaining about a white screen like this, at least not on this device.
Screen of Death
This just happened to me today. Did you find a fix for this problem?
Entropy512 said:
Has anyone encountered the following issues with their SHIELD?
Mine was working just fine after updating to 4.3 and rooting with CWM. I performed multiple reboots in this configuration, played games, etc. - everything was fine.
I had a pretty busy weekend so didn't touch the SHIELD at all for a few days. When I got back:
When I opened it up, I saw the screen backlight turn on but nothing displayed on the screen. The SHIELD button was glowing green.
I long-pressed the SHIELD button to turn off the device. When I turn it back on, I get a white screen that is dark around the edges (mostly vignetting around the corners). The brightness of the screen here and degree of vignetting seem to change every time I try and turn on the device.
If I enter fastboot mode via the key combo, the same thing happens - white vignetted screen. The device DOES appear to enumerate as a fastboot device on my PC in this configuration.
At one point I figured it might be due to a low battery, so plugged it into the charger. 30 minutes later, when I opened the lid, I actually came up to a launcher screen with 65% battery.
However, after closing the lid and reopening it again - black screen again, with the "white vignette of death" coming back if I reboot.
Has anyone else seen similar behavior? Searching results in no one complaining about a white screen like this, at least not on this device.
Click to expand...
Click to collapse
Might be just bad luck for me.....
nmerc001 said:
This just happened to me today. Did you find a fix for this problem?
Click to expand...
Click to collapse
So ive already gotten two shields and they both got the same effect. my guess is the ribbon cable when you open and close the screen, is wearing off? because when i open my shield in a certain way, it works... when i open it at around 100 degrees or open correctly then tilt it forward, the screen tears and slowly shows the white screen. I do admit that i open and close the screen more than i should, but i do it carefully. Ill look over at the ifixit site to see how the cable is connected to the board.
This is what has me worried about buying a shield, the ribbon cable, did you confirmed this was the problem?
DJNinja1625 said:
So ive already gotten two shields and they both got the same effect. my guess is the ribbon cable when you open and close the screen, is wearing off? because when i open my shield in a certain way, it works... when i open it at around 100 degrees or open correctly then tilt it forward, the screen tears and slowly shows the white screen. I do admit that i open and close the screen more than i should, but i do it carefully. Ill look over at the ifixit site to see how the cable is connected to the board.
Click to expand...
Click to collapse
I am a tech by trade and bought one of ebay for 40 bucks cuz it would not power up so the guy claimed. After getting it I found the issue was actually the display was not coming on and once it did. Then went out in a few moments. Connect it to HDMI and the unit runs all day of you want to be cabled. ]
So I tore it down and found that the issue is the flex cable. The problem is that the flex cable is part of the LCD and you cannot just replace the cable. Also since the unit is so new there are no sources as of yet to by the LCD from.
So if you have this issue I suggest just holding out till a source of LCD's at hopefully a reasonable price become available.
So it's soldered to the screen and not replacable right?
nex86 said:
So it's soldered to the screen and not replacable right?
Click to expand...
Click to collapse
That is correct.. The flex cable is actually an integral part of the display and even has much of the driver circuitry placed right on it at the LCD. In the business we call it a flex circuit since it is a flexible circuit board and not just a cable.
I pretty much know what you mean.
On my old Archos Gamepad I ripped the flex that connected the left side of the controler to the logic board by accident.
It was a pain in the ass to fix it by soldering seperate wires, I guess it's impossible to do this with the display connection in the Shield.
nex86 said:
I pretty much know what you mean.
On my old Archos Gamepad I ripped the flex that connected the left side of the controler to the logic board by accident.
It was a pain in the ass to fix it by soldering seperate wires, I guess it's impossible to do this with the display connection in the Shield.
Click to expand...
Click to collapse
Might be possible if you used 32 gauge magnet wire. It is enamel coated so it won't short, but it to will break over time.
hi, flash factory image
Sent from my LT25i using XDA Free mobile app
dragxdk said:
hi, flash factory image
Sent from my LT25i using XDA Free mobile app
Click to expand...
Click to collapse
How are you supposed to flash a factory image when the screen won't let you see what you are doing? When you are in the bootloader screen the HDMI drivers are not loaded yet so not even hooking it to an external monitor will work. You might want to fully read and understand the problem next time before offering advice.:good:
fastboot tells you if you were sucessful or not.
just for relocking the bootloader you have to do some button combinations, you can look up some tutorial videos to see what you have to press.
nex86 said:
fastboot tells you if you were sucessful or not.
just for relocking the bootloader you have to do some button combinations, you can look up some tutorial videos to see what you have to press.
Click to expand...
Click to collapse
Even still, it is not a software problem that causes this. I know because if I move my display to a certain angle it will start to work sometimes. A software issue would not cause this. I also have taken my apart since I am a tech and can actually see the traces in the flex cable that have broken..
Any device with a folding display is a bad idea and a failure waiting to happen. Flex cables have a limited number of flex cycles that is even usually published. So the idea of using them in a device that may get heavy use is just dumb.
Solarenemy68 said:
Any device with a folding display is a bad idea and a failure waiting to happen. Flex cables have a limited number of flex cycles that is even usually published. So the idea of using them in a device that may get heavy use is just dumb.
Click to expand...
Click to collapse
I agree, they used flex in the Nintendo DS and 3Ds as well, but they don't break that fast.
I find it still better if they have used recular cables like what they use for Laptops.
Solarenemy68 said:
Even still, it is not a software problem that causes this. I know because if I move my display to a certain angle it will start to work sometimes. A software issue would not cause this. I also have taken my apart since I am a tech and can actually see the traces in the flex cable that have broken..
Any device with a folding display is a bad idea and a failure waiting to happen. Flex cables have a limited number of flex cycles that is even usually published. So the idea of using them in a device that may get heavy use is just dumb.
Click to expand...
Click to collapse
What you are saying is the EXACT same thing that happened to my SHIELD. I can tell its a hardware problem because when I tilted my screen it would work, and sometimes it wouldn't. Now my SHIELD's display does not even show any signs of picture. HDMI still works, however. Like one of the previous posts said, there is not a screen available for purchase, so my next step is NVIDIA customer support. Maybe if they would sell these screens, I wouldn't even have to have a warranty claim. sigh.
White screen of death?
yes mine too same as
i tried connecting my via HDMI from power cable to large HDMI to plug it works fine on my galaxy tab
thought id be clever try it on nvidia shield never worked sould of bought mini HDMI so now White screen of death
i cant get into recovery or anything i had this on charge for 12 hrs yesterday still no green button on charge only orange .. i too cant find anything on internet to help with this White screen of death situation
Solarenemy68 said:
How are you supposed to flash a factory image when the screen won't let you see what you are doing? When you are in the bootloader screen the HDMI drivers are not loaded yet so not even hooking it to an external monitor will work. You might want to fully read and understand the problem next time before offering advice.:good:
Click to expand...
Click to collapse
This. I'm having a similar issue. My wife's SHIELD has an unresponsive touch screen. So I tried to flash the factory image (It was never rooted to begin with) and I got the white screen issue when in the bootloader screen. I have to keep restarting it to get the screen to show up as normal when the device boots to the home screen. But the bootloader screen is still blank and white. I was able to watch a video and mimick the steps to flash the factory image but that did not fix the issue. It's definitely a hardware issue. I live in Cincinnati OH, anywhere I can go to have this fixed? I have a portable myself and i know this is going to happen to mine soon.

[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 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.
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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.

S7 non responsive screen but leds and charges ok

Hi I have just bought an s7 which turned out to be a Korean G930L but I cant get any response out if it apart from the 2 bottom leds and and the blue one. No response from trying to get into recovery or download mode, basically a black screen though it does vibrate on what i think is start up. It is found by pc and Odin and charges ok, I can tell as I can see properties on pc. But no other response. Is it possible that the previous owner tried to root it using non korean rom or TWRP? Any advice on how to fix either getting TWRP on or screen to light up. I am sorry for being so vague I have pulled it apart and checked all of the connections, screen, motherboard etc but nothing. Odin sees the phone but I am not sure if I am in Download mode so wont flash, as cant see screen.
Or chuck it out or put back on eBay.
roscored1000 said:
Hi I have just bought an s7 which turned out to be a Korean G930L but I cant get any response out if it apart from the 2 bottom leds and and the blue one. No response from trying to get into recovery or download mode, basically a black screen though it does vibrate on what i think is start up. It is found by pc and Odin and charges ok, I can tell as I can see properties on pc. But no other response. Is it possible that the previous owner tried to root it using non korean rom or TWRP? Any advice on how to fix either getting TWRP on or screen to light up. I am sorry for being so vague I have pulled it apart and checked all of the connections, screen, motherboard etc but nothing. Odin sees the phone but I am not sure if I am in Download mode so wont flash, as cant see screen.
Or chuck it out or put back on eBay.
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Your phone's display screen has a problem , sadly you have to replace the display screen. Go to the nearest samsung service center.
Thanks it isnt worth it I will just sell it on ebay. I have been able to get to some of the screens [though still black] as it talks to me in Korean and the screen is giving haptic feedback so aspects of it are alive still. I am wondering now if someone has tried to ROOT it and semi bricked it or turned off the display internally. The other night night no matter what I pushed it vibrated and answered me with the same korean statement. I am trying to get into Recovery Mode without a screen and flash it without a screen but proving frustrating, maybe samsung dealer can reflash it with needing a screen.
roscored1000 said:
Thanks it isnt worth it I will just sell it on ebay. I have been able to get to some of the screens [though still black] as it talks to me in Korean and the screen is giving haptic feedback so aspects of it are alive still. I am wondering now if someone has tried to ROOT it and semi bricked it or turned off the display internally. The other night night no matter what I pushed it vibrated and answered me with the same korean statement. I am trying to get into Recovery Mode without a screen and flash it without a screen but proving frustrating, maybe samsung dealer can reflash it with needing a screen.
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It's not a software issue, there must be water damage or display is broken/went off for some other reason.
I had this same issue with my note 5, I was able to hear everything, touch key and notification lights were on too, that time my note 5 was accidentally dropped by me. So 99% your display is broken. Simply go to service center and get a quote, but display will cost same as used s7. Try to get after market screen.
ok thanks for the advice, i will head to them after the xmas break

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