Develop Bugs

[Q] Brightness adjustment doesn't work. Screen won´t turn on again.

Hello guys, I hope some one can help me out here.
Yesterday, after I woke up I noticed my phone has turned off, I turned it on again with no problem, minutes later I tried to check something on it but the screen doesn't turned on, the backlight from the keyboard and the 4 button under the screen still works, I can press any button and it sounds like phone still works, even with the camera button I hear the shutter like the phone take the photo, the system is on while the screen is still off. The only way to see the screen now, is removing the battery and leave the screen on all the time, I notice then that the brightness adjust doesn't work and it got stuck in the last one used (about 40%).
I was at the moment with CM9. I tried with stock rom using Odin, also again with CM9, and CM10.2. Changed kernel in the last two but the problem is still there.
UPDATE: I just tried CM7 and brightness control works, but still has the problem.
Do you have any ideas for this? Thanks in advance.
P.D. Sorry for the bad English.

dslsoto said:
Hello guys, I hope some one can help me out here.
Yesterday, after I woke up I noticed my phone has turned off, I turned it on again with no problem, minutes later I tried to check something on it but the screen doesn't turned on, the backlight from the keyboard and the 4 button under the screen still works, I can press any button and it sounds like phone still works, even with the camera button I hear the shutter like the phone take the photo, the system is on while the screen is still off. The only way to see the screen now, is removing the battery and leave the screen on all the time, I notice then that the brightness adjust doesn't work and it got stuck in the last one used (about 40%).
I was at the moment with CM9. I tried with stock rom using Odin, also again with CM9, and CM10.2. Changed kernel in the last two but the problem is still there.
UPDATE: I just tried CM7 and brightness control works, but still has the problem.
Do you have any ideas for this? Thanks in advance.
P.D. Sorry for the bad English.
Click to expand...
Click to collapse
Odin (with repartition) back to stock and try to reproduce.

nikon120 said:
Odin (with repartition) back to stock and try to reproduce.
Click to expand...
Click to collapse
Already tried it, but still the same.

dslsoto said:
Already tried it, but still the same.
Click to expand...
Click to collapse
Then you may have a bad display.

Phone working but screen black

Hello everyone,
I have since the first time an LG G3 (D855) that I root and that works very well.
Recently I bought a new one from a friend for my girlfriend.
He never root it, he reset it and sent it to me by mail.
At the reception, I turn on the phone and there, I have the LED lights, sound start but nothing on the screen.
It reacts when I put the finger on the screen so the touch sensor works.
I try a restart and battery removal but nothing better.
The screen has no shock but I told myself that perhaps during the trip he took a bad cut.
I hope it's just a miswired table, so I dismounted to check, but still nothing.
ThenI try something, I disconnect my phone too and I swapped motherboards.
And then the screen with my card in it work.
While my screen with the motherboards of the phone I just bought stay blank.
So the screen is not broken, perhaps it was a install problem.
So I use LG Flash Tool to reinstall the original rom (following a tutorial )
Everything goes well and ends without worries.
But that didnt change anything, the screen is still black.
Do you have an idea ?
Thank you in advance for your assistance and sorry for my bad english

I just realized that if I strongly illuminates the screen I can see that it works.
It' like brightness was at zero.
It's not a screen problem because when I plug it to the other motherboard brightness is ok.
Someone had this issue?

Same problem here
So I'm having the same problem at the moment, but this is the 2nd time that this has happened to me. Last time. I fixed it by changing charger. It worked for like 2-3 month and then I switched again and the problem came back. I suggest you try a few charges. It took around a week before it got fixed.
Hope it'll work for you.
BTW it was a Nokia charger

Black screen G2 after some seconds even during boot...
EtreRe said:
I just realized that if I strongly illuminates the screen I can see that it works.
It' like brightness was at zero.
It's not a screen problem because when I plug it to the other motherboard brightness is ok.
Someone had this issue?
Click to expand...
Click to collapse
Exactly the same problem on my LG G2.
It often go to black screen, but it's not totally OFF. Touch work, and the screen the same, i noticed using a torch that the brightness when to something like zero, but if i increase the level, it stay dark. Only press power button sometimes come back, but few second later... Dark screen again.
It happens everywhere during boot, in home, in lockscreen, in TWRP.
I tried:
- Change rom
- Flash stock firmware...
- Totally switched off for 2 months
- Detach and reattach the screen
- Test proximity sensor in hidden menu
Nothing worked.
If anyone has an idea...

Touch no responsive after call

HI, guys. You my only hope. 6 month ago a replaced my screen with screen from Ali. Sometimes I have problem, that after call touchscreen became unresponsive screen is working . Reboot with pwr + volume up do the job. I do some research. Proximity sensor is OK, even with disabled touch, thanks OTG cable.
Problem is unstable. O can't repeat it. Happens Suddenly.
This problem is rom independent. But I used only stock, and now on stock based custom
Locked bootloader

anyone? =(

beast_drc said:
HI, guys. You my only hope. 6 month ago a replaced my screen with screen from Ali. Sometimes I have problem, that after call touchscreen became unresponsive screen is working . Reboot with pwr + volume up do the job. I do some research. Proximity sensor is OK, even with disabled touch, thanks OTG cable.
Problem is unstable. O can't repeat it. Happens Suddenly.
This problem is rom independent. But I used only stock, and now on stock based custom
Locked bootloader
Click to expand...
Click to collapse
+1
i have the exact same problem with you and i think is screen related.
i ll perform the proximity sensor check and if it is not the source of the problem,i ll take off my screen,give a cleaning at the connections and put it back on, to notice it s behaviour.
hope i won t break my screen cause it happened before:fingers-crossed:
my screen has started un gluing from the left side of the display and screen is lifted upwards ,i just mention this for the possibility of causing a problem with those freezes during incoming calls,but i can t think of anything.
probably i need to order a new display(not from the same seller of course) cause it is a little dim too,if it s not fixed after trying those i really don t know what i will do with my phone,it really gives in my nerves with this problem(otherwise i m very satisfied of owning it).
i ll come back reporting after making my tests...
EDITroximity sensor check OK,no problem.
cleaned the connections of my screen and i have only 1 freeze after 40 calls,but is still there and is only a day that passed..
i can t target if my problem is hardware or software,i ll flash stock lollipop with flashtool and wait for some days,but if it appears again what should be my next step?
any ideas welcomed..
EDIT 2:after five days on stock 5.1,problem seems to dissapeared,so i supposed it is related to an app...
EDIT3:till now everything is OK.

Black Screen

When I was using this phone the screen suddenly turned black. No powering off or anything, the phone was nearly fully charged anyway. Nothing seems to be working anymore. I tried turning it back on but it's completely unresponsive. It won't even charge anymore. I was wondering if there was any solutions to this and if other people where having this problem or did my phone just brick itself

Are you able to get to the bootloader? by pressing volume + and power at the same time. It may be worth trying to flash stock also. I am no expert its just what I would try.

MrPureskill said:
When I was using this phone the screen suddenly turned black. No powering off or anything, the phone was nearly fully charged anyway. Nothing seems to be working anymore. I tried turning it back on but it's completely unresponsive. It won't even charge anymore. I was wondering if there was any solutions to this and if other people where having this problem or did my phone just brick itself
Click to expand...
Click to collapse
try using spflash all format + download flash stock rom

MrPureskill said:
When I was using this phone the screen suddenly turned black. No powering off or anything, the phone was nearly fully charged anyway. Nothing seems to be working anymore. I tried turning it back on but it's completely unresponsive. It won't even charge anymore. I was wondering if there was any solutions to this and if other people where having this problem or did my phone just brick itself
Click to expand...
Click to collapse
look here and flash stock rom again
http://forum.xda-developers.com/elephone-p8000/help/how-to-guideline-install-mtk-drivers-t3334698

Hello there. I have the same problem, phone suddenly stopped to show anything on the screen, it is comleptely black. Tried to reflash few original roms, without a succsess. Replacing lcd did also not solved the problem. Did anyone find a solution?
Thanx

Did you try to format + reflash using spflash? Check out my video walk thru.
https://youtu.be/rzKll-HG6rQ
Sent from my p8000 using Tapatalk

Of course I did. But at no avail. Today, I found out, that the new screen is partially working. I can see very dark picture, it means, I have no back light. Tried to set it up from engineers mode, but no luck.
So the new screen is on, but without back light, and the phone heats pretty much in the top area.

storm525 said:
Of course I did. But at no avail. Today, I found out, that the new svreen is partialy working. I can see very dark picture, it means, I have no backlight. Tried to set it up from engineers mide, but no luck.
So the new screen is on, but without bacjlight, ans the phone heats pretty much in the top area.
Click to expand...
Click to collapse
If so. Try to pull down the statusbar and swipe a bit under the statusbar line, in the top of the screen from left to right, with some luck you will tap the brightness switcher
Gesendet von meinem Metal mit Tapatalk

I can connect to the phone through Vysor, and when I change the brightness level there, there is no change at all. The Phone does not react to any settings change at all.
Tried eragon rom, but still no change....

storm525 said:
Hello there. I have the same problem, phone suddenly stopped to show anything on the screen, it is comleptely black. Tried to reflash few original roms, without a succsess. Replacing lcd did also not solved the problem. Did anyone find a solution?
Thanx
Click to expand...
Click to collapse
Better hope you still have your garantie, because theres legit no way to restore it. You just have to send it back for it to get fixed. This happened to me once and yesterday twice. sadly I am to dissapointed from this. I am never buying an Elephone again ! PS bro it isnt worth sending this hell of a **** peace back. It costs and the blackscreen thing is gonna happen again in 6-8 months. SO go out there and buy yourself a real phone not this bull****. I have to do the same rn.

P8000 unrespnosive Fix
MrPureskill said:
When I was using this phone the screen suddenly turned black. No powering off or anything, the phone was nearly fully charged anyway. Nothing seems to be working anymore. I tried turning it back on but it's completely unresponsive. It won't even charge anymore. I was wondering if there was any solutions to this and if other people where having this problem or did my phone just brick itself
Click to expand...
Click to collapse
Just happened to me with my 3 year old phone. Left overnight with enough charge. Pressed the side button and nothing - held it down to restart and then complete blank.
Repalced the battery about 1 month ago with one from AliExpress for £5.
So using the kit provided with the battery or a watchmakers screwdriver - undo the 12 tiny screws and remove the white surround and then the inner back with the phone's number on it. Next disconnect the battery socket but be careful as it is tiny - use a torch and magnifier if vision not good. Remove the sim card. Wait 10 minutes - did this with the blue light flashing - it stopped finally on disconnection.
Put it all back together and hey presto fully working phone

[LG G4] [H815] Display random flash from dim to normal brightness

Hello, I have problem with display brightness, display random flash like I set brightness to minimums..But I didnt pressed anything, just randomly display dim but I can use phone only if I'm in dark room or its night, on regular day light i can't use it..So problem is that random fast flashing from normal to dim (but not normal dim, its hard to work on phone) phone is not hot and I dont play any games or using any software..
I used try recovery reset, factory reset and nothing..
Any solution or anybody have same issue like me..
10 seconds work good then go again on that dim and every 2,3 min again going working good on some time and again back on dim..Sometimes it's flash 2-5 but nothing is frezzed all works normal just is problem that i cant see ehen display is dim..So much dark..
Update: I also try to flash new firmware from 6.0 i rollback 5.1 and nothing...
Also tried this fix youtube .com /watch?v=qzeIrSMtA80 but nothing.