Blackscreen of death - Huawei P9 Lite Questions & Answers

Hello! I upgraded my ALE-L31 to Nougat, but I had some issues with it because it was the wrong version and I decided to downgrade and then flash again the nougat. Everything worked OK until the upgrade to nougat. I successfully upgraded to Nougat, but, when I hit reboot device the phone it's stucked on a blackscreen on Fastboot.. do you have any recommandation to me, or the phone it's death? I think it's a motherboard issue...

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[Q] Bricked on Mango

Hello! I installed Mango at my device a month ago and everything was fine till yesterdayl Yesterday, it was lagging and crashing all the time so I restarted it but it booted on recovery mode(The connect to computer screen). I updated to beta 2 of mango but it still is in recovery mode... It only boots in Cold Boot. What can I do to fix it????
You could try to flash a stock rom. Then perhaps updating back to Mango.
Take a look here http://forum.xda-developers.com/showthread.php?t=935578 for instructions how to flash your device.

HELP!! Phone in Bootloop From "HELL"

ok so my nexus 6P started randomly restarting so i went to my toolkit and flashed stock, than when restarted it jus kept going in this bootloop to the GOOGLE sign back to black. i can get into bootloader and recovery does not work i click it an that it restarts like normal but than it just goes in a bootloop also. I had tried ALL the stock files from 6.0 to 7.0 and none of them worked. Im out of ideas PLEASE help
Check out this link below
http://forum.xda-developers.com/android/help/guide-revive-angler-bootloop-t3454938/post68872362#post68872362

Moto g4 plus not booting up

Hey guys i had an invicta os rom . I wanted to go back to stock so i went back using a july 2016 stock firmware. It booted up and worked. Now i received nougat update. I downloaded and installed it. Due to some problem my phone is not booting. It is not even showing battery icon when charging. No response on cliking power and volume buttons for more than 120 seconds. When i connect the charger the indicator led flashes. That is all. What should i do????
Since no response on power and volume buttons i cannot go into bootloader and recovery also. Im suck on a black screen not change in color on charging. Only the led blinks when charger is connected... Pls help
By downgrading to stock Marshmallow from having stock Nougat, and then attempting to update via OTA, you've hard bricked. I warned about this in this post: https://forum.xda-developers.com/showpost.php?p=75033410&postcount=1166 Had you flashed the September 2017 stock ROM you would probably have been okay.
Effectively, by downgrading, you had a Marshmallow based system but a Nougat based bootloader (likely March/June/September 2017). By taking the OTA, you likely attempted to flash the December 2016 firmware update, including the bootloader, which corrupted your newer bootloader. Your device is showing the classic signs of being hard bricked from a corrupted bootloader, and I imagine if you connect your device to your computer, you'll see HS-USB 9008 or similar in Device Manager.
To rescue your device, you can try the blankflash and ROM here: https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-hardbrick-solved-guide-t3657761
In future, do not flash older stock ROMs to your device (e.g. Marshmallow or old Nougat firmware), or if you do, do not accept OTA updates. Else the same thing will happen and then the blankflashes may not work, leaving you with an expensive paperweight (or very expensive repair).

S5 SM-901F Bootloop on device with Custom ROM

I flashed the ROM Ressurection Remix onto my phone to get a newer Android version since the model is quite old. Everything worked perfectly for over two years. Then while browsing, my phone crashed and got into a bootloop and restarts after showing the Samsung Logo. After manually removing the battery and putting it back repeatedly it boots up somehow. I couldn't reproduce what was happening back then.
After that it crashes in irregular intervals for no apparent reason and every time I could get it to boot properly by turning off and on for a long period of time.
Now I got the same problem and I wanted to get rid of the bootloop, so I decided to flash it with a new version of Ressurection Remix. I updated TWRP via Odin and had much trouble to get into recovery mode since my phone was crashing at the Samsung logo. As I got into recovery I made a factory reset and flashed the new rom. But as soon as my phone started to reboot after the flashing, it crashes again and the loop starts once again. Again, I searched for another Rom and used LineageOS but the problem persists.
Now I'm out of options, I can't even get into recovery mode by now.
Could anybody help me out?
Kolon22 said:
I flashed the ROM Ressurection Remix onto my phone to get a newer Android version since the model is quite old. Everything worked perfectly for over two years. Then while browsing, my phone crashed and got into a bootloop and restarts after showing the Samsung Logo. After manually removing the battery and putting it back repeatedly it boots up somehow. I couldn't reproduce what was happening back then.
After that it crashes in irregular intervals for no apparent reason and every time I could get it to boot properly by turning off and on for a long period of time.
Now I got the same problem and I wanted to get rid of the bootloop, so I decided to flash it with a new version of Ressurection Remix. I updated TWRP via Odin and had much trouble to get into recovery mode since my phone was crashing at the Samsung logo. As I got into recovery I made a factory reset and flashed the new rom. But as soon as my phone started to reboot after the flashing, it crashes again and the loop starts once again. Again, I searched for another Rom and used LineageOS but the problem persists.
Now I'm out of options, I can't even get into recovery mode by now.
Could anybody help me out?
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Hey. I have same problem. I can just boot the Phone with bootloader. Anyone have an idea about this?

S7 Edge Freezing / Restarting even in TWRP

Hello, guys!
I'm coming here with a big problem. I used to have a Galaxy S7 Edge (Exynos edition) , but decided to buy a new phone.
I haven't use S7 Edge for 6 months, after this time the phone isn't working anymore. Used to work very well before that.
I've managed to charge it.
First symptom: keeps restarting and freezing when passing from Galaxy LOGO.
What I have tried until now:
1. Flashed TWRP 3.4.x.x
2. Flashed Floyd ROM, worked for 10-15mins but started again to enter an infinite loop of RESTARTING and sometimes freezing.
3. Flased a boot.img extracted from a UnitedKingdom SW. The flashing process was done by using adb while the phone was on TWRP.
4. Flashed Samsung Original SW using ODIN. The flashing process succeded but the phone kept showning "no command" message alongisede with a nice and green Android )
Can you help me revive this phone?

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