LG V30 black screen - LG V30 Questions & Answers

Hi everyone. I had to replace my screen due to colour fade, stripes, etc. which has been done successfully in terms of hardware replacement. However, the screen is completely dead, black, no touch effects etc. I have used a second brand new screen - same problem. All internal connections seem to be working, pressing the power button results in vibration notifications and I can get notification sounds plus a truncated boot up sound but nothing at all on the screen. I have previously rooted the phone with no problem, although I cannot remember which ROM I installed (it was rooted 2-3 years ago). I bought a new phone and have just come back to this phone in order to renovate it as a backup phone should the newer one fail. I believe looking back on my PC that I installed a modified stock ROM for rooted EU H930.
The phone registers when plugged in to my PC, adb recognises it and lists it under adb devices but I cannot get it to function or light up the screen. I think it may be a motherboard issue? Thanks

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[Q] Xperia Ray Won't Turn On or Do Anything Else

Hi, so sorry for the vague thread title, but really, there's no other way to describe it. So here's what happened.
For the past few weeks (or month), my Xperia Ray has had a problem of switching on after it was put into standby mode, i.e. after i pressed the lock button. The screen would light up, however would remain blank. So all I would get is a bright black screen.
I could have lived with this for a few more months (until Xperia Z gets released in my country D: ) however this problem started getting worse. At first, after pressing the home button, the volume rockers and/or the lock button for about 20 times, the screen would turn on (finally). Despite it giving me that bright black screen, i could still operate the screen. I could still try to unlock it because of the haptic feedback on my lockscreen. I could still change music tracks on my music widget on my lockscreen. In short, the screen worked perfectly, only that it kinda wouldn't show. However, for the past week, the only way to turn it back on would be to do a battery pull and switch on the phone again. And it recently developed a problem of giving me that bright black screen again when I switch it on, causing me to do about 5 battery pulls before being able to actually use my phone again.
I did get fed up with this problem, being a heavy user of my phone. Therefore, today I decided to try to do a factory reset of my phone, intending to wipe the dalvik cache + clear all user data, thinking it might help my bright black screen problem. However, I found that I couldn't boot into recovery because all my phone would do was to give me that bright black screen again! So after many battery pulls, I managed to boot up my phone normally and do a factory reset under the backup & restore tab in settings. Of course, the phone tried to reboot itself, but of course, just gave me the bright black screen.
I kinda gave up at this point, and did many battery pulls and boots, however, all I got was either
1. the terrible bright black screen
or less frequently
2. the free xperia project logo then the terrible bright black screen.
I did get very fed up, so I plugged it into a wall socket to charge it. However, since about an hour or two ago, I realised it may be on bootloop. When I plug it into a wall socket, the free xperia project logo shows up and then an even brighter black screen shows up for about 3-5 minutes, then those two repeat endlessly. The notification light doesn't show that it's charging at all.
Okay here's background info on my phone.
- Is rooted
- Bootloader is unlocked
- CM 9.1 is installed
- Was running GO Launcher (if that helps)
- had a custom boot animation
- I think i deleted an apk for the google start up configuration thing...the one that asks if you have any google accounts you want to connect when you switch on your phone for the first time. I'll search up the correct apk name if you need it.
- Is about a year old (got it last early April)
- is a Sony Ericsson Xperia Ray (in case you didn't notice haha)
- battery level was about 20%+ when I did a factory reset (terrible of me I know)
- I have tried to caliberate the battery a few months ago
That's all the background info I can think you need. Please do let me know if you need any other info. If you need the logcat text of what happens when I hit the lock button at the top of my phone and the phone gives me the bright black screen (the early stages of this problem), let me know and I'll dig it up. I think I've bricked it, but I can't boot it into recovery so I can't do anything. And I did all I could google for the bright black screen problem which I won't tire you by specifying here. Please do help me. It seems as if the worst of evils has befallen my phone. Now I'm stuck here with my phone crazily on bootloop beside me. Please please do help.
Flash stock rom
Just try flashing a stock rom with Flashtool. If the problem persists, then it could be a hardware problem. Flashing a stock ftf takes care of all software issues. Get the stock ics FTF file and place it in firmwares folder of flashtool. Start flashtool and select flash mode. Then choose your ftf and press ok. Then wait until it prompts you to connect your phone. Then, just turn off your phone, while holding the power button down attach the USB cable. The LED notification should turn green and wait until it finishes flashing.
flash extended stock kernel and then the stock ftf firmware file...
hit thanks if i helped u
I have the same problem on my Xperia Mini (ST15i) I use Pureness rom and Mesa Kernel... ((
Benlux1 said:
I have the same problem on my Xperia Mini (ST15i) I use Pureness rom and Mesa Kernel... ((
Click to expand...
Click to collapse
Hi, if your phone can still be switched on and hasn't progressed so far in being destroyed, you could try downloading the Disable Auto Brightness app for Xperia phones from the Play Store. I've read somewhere that the screen might not turn on because of the auto brightness. I'm not sure if it actually helps, but perhaps my phone would have died faster without it. I've read of people changing their battery, doing battery calibrations or changing their screen to fix the problem. But before you change the hardware, I suggest that you check the hardware first. If the Disable Auto Brightness doesn't work, do a Nandroid backup and store the backup somewhere safe. Then flash the stock firmware to your phone and try to get it to switch on. Do flash the firmware before your phone runs out of battery because you never know, your phone may decide to refuse to charge your battery anytime. Then try to switch it on. If your phone goes into a bootloop (like mine now) really consider getting a new phone or sending it for repair or try all day to fix it if you use your phone alot. I'm still trying to fix mine.
I flashed the original firmware for my phone, tried to turn it on, was very happy when I saw the original Xperia logo, but then I realised it was on bootloop. When I tried to charge it, it immediately turns on and goes into bootloop again. Logcat doesn't detect my phone, so I can't obtain the logcat of what's happening. I haven't tried to replace the battery of my phone because I couldn't find a supplier. But I'll go on trying to fix my phone until the day that it really breaks down. Good luck with yours and keep us posted.
Sent from my MT25i using xda app-developers app

Sony Xperia SP (completely stock) unlocking

Hello,
I have a Sony Xperia SP, completely stock version, and it has a pattern lock. The phone fell on tarmac and the screen broke between the pattern circles top right and the one below it which made a widespread part of the screen not response to touches between those two circles. Now I am unable to unlock my phone (the pattern combination is a U shape, starting from bottom left and ends top left).
The phone is stock - USB debugging disabled and no custom recovery. I've read that this model did not come with a recovery installed, is this correct? Although pressing volume down and connecting the USB cable makes the LED display a blue light for a couple of seconds (which to my recent research indicated fastboot, yes?), then switches over to red and starts recharging.
What are my options? Can it be unlocked somehow? Can I bypass the pattern somehow? Using the email recovery option wouldn't work out because (being a businessman like I am) I have no clue which email it has attached to it (for what I know it might be one of the emails I was using back in 2013 when I got the phone).

Please help - Samsung Galaxy S5 - Dark screen

Hi everyone!
I just received an used Galaxy S5 from someone and it was working properly, it was a gift for sure.
I had some fun exploring it as I never had any phone like that one, I downloaded something was spending time on that app and the phone was turned off because the battery was low.
When I charged it everything was ok but the opening screen like Samsung Galaxy S5 , powered by android and it never went to the main phone screen it was loading and like it couldn't load till the end.
So I was able to enter the recovery menu before booting and I believe I made some mess there including chosing the wipe system option and so on, anyway the phone finally restarted , went to normal screen but after some attemps it resulted in having Galaxy image on my screen when rebooting with some sort of extra image flowing in the background / some colour stuff etc. I just took it as it's reinstalling the soft from new , like a fabric version you know so I left the phone on table and it took like an hour and it wasn't finished , maybe I could have waited some long but I decided to reset the phone at this point and the screen went dark and never returned. I can observe some blue light in the top left corner of the phone, my friend took this phone from me yesterday and even tried to use some Odin software to install software however he made it all in let's call it Blind mode. Phone seems now to have some sort of voice in foreign language, I dont know what is it , but like a navigation in car.
Screen remained dark from that time and never came back.
Do you guys see any chances saving my phone ?
Appreciate any help and tips, ps: be aware I am not a phone pro and I know to much about reinstalling soft etc. but I have intentions to do it with instructions if necessary and if it could help
Thanks!
Hi let try to explain me better :
1.extra image flowing in the background / some colour stuff etc.
Do you mean when Samsung Logo appear like this :
https://www.youtube.com/watch?v=c8nF9tbVEHQ
you have burning effect which means your LCD is damaged it looks for example something like this :
https://www.youtube.com/watch?v=tkYXobLkjDA
When you say you hear Voice like in Car Navigation that means that Voice Assistent (Talkback) is On try to disable by fast pressing 3 times home button if not re-flash latest version of firmware just tell me what is 7 and 8 number from imei which you can find under the battery on sticker.
To send you correct firmware for your Phone Country Code .
Bad things if nothing of that can help you probably your screen is dead , or flat cable doesn't have good contact on mainboard .
Hi Teddy
Thanks for your time spent on trying to help me here ! It's really appreciated!
I would like to say that -> 1 . yes exactly I seen that image when everything worked properly and it seemed that my phone will have system reinstalled , this animation was loading for about 1 hour or so, and at this point I have cancelled it and my screen went dark forever!
2. No it's just dark totally dark nothing can be seen, everything was just perfect before ( phone is from Germany used about 3 years I guess as the battery has such date on it 2015.03... ) I live in Poland so it would be the best if the software was in polish language.
3. Yes I hear the TalkBack for sure and it's no problem to enable/disable it , anyways screen won't come back to become working properly
I believe I might have screwed this phone a little or maybe I am wrong and I didn't do anything bad at all why I am saying this : short story how it was
1. I received it few days back and I was there with my sister I took it from her and was enjoying it like a kid enjoys a new toy
2. I was having fun on it, it happened it was dead because battery went down to 0% but I charged and everything was perfect, after that I started downloading extra stuff -> android apps and I noticed after another charging it stuck on Samsung booting screen ( White letters on black background ) it didn't want to move forward to the system ( normal functioning ) - at this point I knew it won't probably load anymore and I won't be able to use it so we went to console let's call it ->
3. When we were in the console there were few options, to reboot, to remove something / swipe ( I am not perfect in english all right so I did it intuitionally ) , I believe I for sure chose to remove /swap system and then as you mentioned in YouTubue 4 sec video I could see the samsung loading screen with that beautiful logo and animation, so I thought the system is reinstalling and it will take a while, and here I waited about 40 mins - 1 hour and I gave up and restarted the phone here, after that the screen went totally dark and dead but... ->
5. But after rebooting I was still able to see just 1 option, not any other , this one option was to connect device via odin and install system , with android alien green funny picture on it , waiting for connection
6. Short after something happened and I couldn't see even that, screen was dark and remained dark for good
7. Yesterday phone was taken by my friend to his home and he claims he reinstalled system, it was possible to move intuitionally by fingers and voice navigation but screen never came back
8. Now it's impossible to see anything on the screen in fact, I can't even determine if I am accessing pre-boot menu where I could reinstall anything or not, really I can't know it so it's just dark , standard buttons on the bottom of the Galaxy S5 are bit highlighted by white light like an icon on the left and right of the bottom wide button
9. The diode on the top left of the phone happens to light regulary in blue / dark colour
10. That's really all - I don't know here whether I should go to some dude working on phones and if he tells me $50 to fix it in Poland it will be bit over 1/3 value of new phone so is this worth an effort I don't really know, nothing helps really I tried everything my colleague used to fix some iphones himself so he isn't totally newbie to this subject

Touchscreen suddenly not working anymore.

I've bought this phone around february/march 2018. I've been using an LOS 15.1 unofficial rom last updated april/june which has been working perfectly, no problem besides no VoLTE but i don't mind this.
I booted the phone into recovery (longpressing power button, then selecting with touchscreen the "reset option". It turned and then couldn't select any button via touchscreen. The phone reseted itself by the first time and got into this! Now touchscreen don't work (so i can't turn it off -it just restart when I longpress for 5 secs the power button), can't unlock it because I set it to ask me the pin on every reboot..
As a sidenote, the phone fell of my desk like 2 months ago, and changed it's entire screen tile (the LED and the glass) for another one because the original one got shattered and made the device unusable. I'm thinking it's a malfunction of this module (or maybe something disconnected? Is this possible)
Anyway, tomorrow i'm going to ask the guy who changed it for help. BUT, is there any other possible fix guys? Or a hard keys combination to completely turn it off so I don't get more messages and save battery?
Thanks a lot!
Just flash stock MIUI via adb n it will work ?

M5 boot stuck half-way, rest of screen black, shuts off after a min

Hi all,
I got this Xperia M5 that's been giving out warnings about memory being full and I suppose it finally gave in. It only partially boots after like a full minute of showing you those blue waves. When it 'boots' the screen is black and nothing works, except you can see the status bar with just the battery icon, no-SIM icon and the clock.
Weird thing is when the device is powered off, you can press the power button once and it'll display a large battery indicator which shows the percentage normally-- I've seen this go up from 0 to over 90 something incrementally.
But when it's 'on' the way I just described, the battery is always at 0% with a red ! next to it.
Anyway, when it's in this weird half-life mode, you can actually pull down the notification bar normally, and tap stuff as well. Flashlight works, you can see an actual WiFi list (nothing happens when you connect) etc. When you launch stuff through here though, like settings, it won't open anything. It'll make the sound as if it's launched something but the remainder of the screen will still be black.
Using the dedicated camera button, I can access the camera. It works (sort of), meaning you can see the camera display where the screen used to be black. And it immediately says "system process is not responding," so I'm guessing this is a system issue where it can't load basic stuff like the homescreen?
Whatever you do or don't do, it stops responding after a couple minutes and shuts itself off.
Stuff I've already tried:
- Safe mode (volume down + power), just 'boots normally'
- Recovery mode (volume up + power) done that for over two minutes, does nothing or just 'boots normally'
- Hold down the tiny yellow 'off' button under the SIM/SD cover, did nothing.
- Xperia Companion: PC won't recognize the phone either in that zombie state, or when it's off, so I tried 'device cannot be detected', shut phone down, held down volume down button, connected USB still holding down, waited for a while and viola, nothing happened.
It's factory OS, never messed around with it and I don't know the version (could be 5?).
Any ideas?
Guys at this point all I'm wondering is if anyone ever managed to brick a phone that's as semi-responsive as this one, in the history of bricked android phones anywhere.. I mean how could it be bricked when you can (sort of) boot and even open the camera?
you said it boots in download mode?
paranoic(d) said:
you said it boots in download mode?
Click to expand...
Click to collapse
No I wouldn't say download, it's weird-- there's the status bar at the top and soft navigation keys at the bottom, but the homescreen in between these is black. I tried tapping this black area to see if stuff is there logically but you just can't see them, but there was no interaction, no sound or anything.
I am able to pull down the status bar to reveal the usual buttons and such, like I mentioned before you can turn on the flashlight, click to see a list of available wifis etc. But you can't access settings through here, I mean you tap settings and the main part of the screen is still black.
The only way to get the screen to work is to open the camera through its dedicated button, where the camera display works normally, you can switch cameras etc. Tried accessing the gallery through here but it didn't work.
I just don't wanna buy a new phone when this one doesn't seem bricked at all. If it like didn't respond at all and nothing appeared on the screen I wouldn't think twice before buying the first phone I see on Google.
im afraid that you have to flash stock rom again if you will boot into download/fastboot mode.but your problem seems strange.what was the last thing you have done before phone stuck like this?
paranoic(d) said:
im afraid that you have to flash stock rom again if you will boot into download/fastboot mode.but your problem seems strange.what was the last thing you have done before phone stuck like this?
Click to expand...
Click to collapse
Not my phone but it'd been going on about low memory for a while now. I got the PC to recognize it once in that zombie state, so I'll try that with Companion if I can get it to half-boot again. I'll post updates if anything happens.
antiglue said:
Not my phone but it'd been going on about low memory for a while now. I got the PC to recognize it once in that zombie state, so I'll try that with Companion if I can get it to half-boot again. I'll post updates if anything happens.
Click to expand...
Click to collapse
okay keep us updated

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