So this happened when I installed latest version of LOS14.1.
Basically happened to me 3 times, the screen won't turn on after I lock my phone, reboot doesn't help and there is no logo on boot. Black screen in recovery and download mode. I managed to enter download mode and installed stock firmware but the phone screen is still black.
When it first happened I managed to 'repair' the screen by pressing power button for some time. Second time it happened I got lucky again and screen turned on so I did factory reset. This time I can't do anything, I flashed the stock firmware and the screen is still black with blue LED on. I'm out of options and have no idea what to do, I am going to open my phone tomorrow to check if some cables loosened up.
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Need help/advice.
I flashed from stock rotos rom jme. I had problem with flashing. Things like windows not recognising tab in download mode. Several times failed flashing in midle of flash process. At the end I flashed succesfully. And things are working normaly. But when I switch off and then on. I get at&t logo and then black screen, i get sound from samsung logo but still black screen. Buttons on/off the backlight few times and still black screen. Then I press sleep then wake and i get straight the locking screen and all fine till next boot.
It looks like the boot part does not initialize the screen propely as its has a white line across when its black.
And in recovery i cant see what I am selecting.
Any ideas?
update:
sys73r pointed me to http://forum.xda-developers.com/showthread.php?t=899196. I will test that after I solve my unstable USB connection. As flasshing boot with usb problem smells like brick factory.
Sorry for bringing this again to top.
The fix was already posted.
My son's Vega had Vegacream installed and was working fine until this afternoon, when it wouldn't turn back on, I could only get the backlight to show for a few seconds, then just a black screen. I had to hold the power button for 5 secs to reset it, only to get the same backlight for a few seconds then black screen.
I've made sure I had all the correct drivers installed using AUDI, and I can get the tablet into nvflash recovery no problem and reflash roms. I've tried reflashing vegacream, no difference, just backlight then black screen again. I've also tried reflashing vega moddedstock and original stock 1.10, it says they've flashed correctly in the dos window, but they just show the green android logo for a few seconds, then black screen again, and I have to hold power for 5 seconds to shut it down, then it just boots to the android logo again etc etc etc.
I know there are loads of posts already about Vegas that won't boot, and I've read lots of them , but I can't seem to find a solution to my problem.
Any help and advice would be greatly appreciated, my son is badgering me every 5 minutes, is my tablet fixed yet Dad?!
Hello
I have a rooted Galaxy A5 with stock Lollipop 5.0.2 installed. Lately I've been trying to figure out how to install the Xposed framework and Xprivacy. So I was reading something about having the bootloader unlocked before doing a TWRP recovery and I couldn't find a way to see if my phone has it unlocked or not.
I was then thinking that maybe I can find some info about this if I enter recovery mode (been a long time since I rooted and can't remeber much) and so I turned my phone off and held down volume up, home button and power button.
Samsung logo shows up and everything seems fine at first. The screen then goes black with bright green pixels and lines slowly fading in and the samsung logo again as well, slightý visible behind this green mess that now covers the screen. It then slowly fades back to black with a few grey lines visible and nothing happens. I panic and and hold down the same buttons again and fortunately it rebooted like normal.
I have never had a problem with this phone or the stock firmware that I'm using (before root it was swedish/scandinavian, now uk I believe.)
What's going on and what to do? Can frozen apps affect any of this?
Starting from the beginning: My phone crashed restarted several times and then black screen with blue led. Then I had t wait for the battery to die because none of the home power vol, power vol keys worked. Eventually got it into recovery mode selected wipe cache restarted same problem.
Now the phone even boot into recovery. It just stays on the blue screen saying "Installing system update" . The little recycling loading icon spins a couple times then its just stuck. Resorted to losing everything and installed smart switch and did emergency restore. Flashed a few times still no joy. Took it to shops they charged it turned it on and its reset to factory. Got it running again, only for it to go into a boot loop. Curious if it was actually fixed, i booted into recovery mode same issue and now back to square one. (I did let the battery die and started it up, came to the home screen and it started rebooting again to black screen and blue LED again.)
I do intend on sending it back but I am wondering could be that the recovery partition is corrupted?
I have some issues with my s4 a few weeks ago it started
first i couldnt change my brightness right after that my boot animation disappear and now i cant enter my recovery i found that out because today i tryed to delete everything and install new in hope that the bugs will go away but then this
i think i can go in to the recovery but my screen does not show it but i am not shure about that.
also after i tryed to install 5.1.0 android to maybe get in recovery, (befor i had 4.4.4 installed because i have a weird input lag in 5.1.0) i noticed that the screen is flickering but only in 5.1.0 in 4.4.4 i never had this
what i already tryed: install I9515XXU1ANK2_I9515YXY1ANL2_I9515XXU1ANK2_HOME.tar and I9515XXU1BPK3_I9515YXY1BPK2_I9515XXU1BPK3_HOME.tar ,
adb reboot to recovery , tryed to change kernel with app but i think that didnt worked
installed twrp, cmw both didnt worked
please help me to fix my phone
Does the phone boot properly to the desktop after flashing the latest stock ROM?
yes it boots normal
btw little update i found out i can use my recovery my screen just dont show any thing
i found that out because everytime i was downgrading from 5.1.0 to 4.4.2 i had to do wipe data or it wont boot
i tryed to go in recovery and go 3 down (wipe data) and then 7 down (yes) just with youtube videos and it worked before the wipe my phone does not start on 4.4.2
that means that my recovery is working but screen just doesnt show it
it doesnt show anything but the white samsung logo, normal system, downloadmode
at any other time my display ist blank
as an example when i turn it on i see the white logo then screen turns blank i hear the bootup sound, after 15 sec screen goes black and when i press unlock i can normal use the phone
but why is it blank while booting and in recovery and also is a bit flickering when phone is turned on normal
Recovery works on stock lollipop?
yes recovery works but screen does not when i enter it
the screen is turned on but it only shows black
same thing when the phone boots up screen in turned on but only shows black untill the phone is booted then screen works but is flickring a tiny bit
i called in a repair shop they told me maybe the backlight control is broken???
because i also cant change my brightness its set to max and doesent get darker when i move the slider