Database Users

[Q] Phone is stucked at Fastboot mode started, cannot do anything, please help!

As said, after flashing AEONFLEX rom from PA KitKat, my phone is now stuck at the black screen with text: Fast boot mode started - udc_start(). I tried to hold the power button to turn off but it keep turning on with that same screen, cannot get into any other stage? Can anyone help me? I already searched through the web but no solution for my case.

kennytung said:
As said, after flashing AEONFLEX rom from PA KitKat, my phone is now stuck at the black screen with text: Fast boot mode started - udc_start(). I tried to hold the power button to turn off but it keep turning on with that same screen, cannot get into any other stage? Can anyone help me? I already searched through the web but no solution for my case.
Click to expand...
Click to collapse
go to recovery. try harder. there is lots of guides or videos how to go to recovery.

darkobas said:
go to recovery. try harder. there is lots of guides or videos how to go to recovery.
Click to expand...
Click to collapse
Thanks, I can get into recovery and flash another rom, can boot up normally now. Any reason why a specific rom can cause this?
EDIT: turn out it was my fault to forgot flash the patch of the rom also.

kennytung said:
Thanks, I can get into recovery and flash another rom, can boot up normally now. Any reason why a specific rom can cause this?
EDIT: turn out it was my fault to forgot flash the patch of the rom also.
Click to expand...
Click to collapse
yes, probably wrong kernel

[Q] Stuck in Bootloop with CM11

So I'm rooted with TWRP loki and had CM 11 on and running for a while. I just downloaded the latest nightly through CM OS and it asked to be rebooted.
Upon rebooting to TWRP and installing the update it then just kept on trying to reboot with the CM logo. I cannot get the power and volume keys to boot it to recovery and my computer won't recognize it in this state to boot into recovery.
Any ideas??!! Please! I don't know of any way to restore it.

wave28 said:
So I'm rooted with TWRP loki and had CM 11 on and running for a while. I just downloaded the latest nightly through CM OS and it asked to be rebooted.
Upon rebooting to TWRP and installing the update it then just kept on trying to reboot with the CM logo. I cannot get the power and volume keys to boot it to recovery and my computer won't recognize it in this state to boot into recovery.
Any ideas??!! Please! I don't know of any way to restore it.
Click to expand...
Click to collapse
have you tried turning it off entirely then booting into recovery and flashing a)an older cm11 or b)nandroid backup

XxZombiePikachu said:
have you tried turning it off entirely then booting into recovery and flashing a)an older cm11 or b)nandroid backup
Click to expand...
Click to collapse
I had to take the back off and manually unplug the battery to turn it off. Then I tried the button combinations posted *power and V down* when LG logo comes on repeat to get to wipe screen. However, the phone did not go to the wipe screen, it just rebooted again.
If I could get it to boot to recovery I'd be golden.

wave28 said:
I had to take the back off and manually unplug the battery to turn it off. Then I tried the button combinations posted *power and V down* when LG logo comes on repeat to get to wipe screen. However, the phone did not go to the wipe screen, it just rebooted again.
If I could get it to boot to recovery I'd be golden.
Click to expand...
Click to collapse
have you tried getting into download mode while powered off volume up and plug into pc

XxZombiePikachu said:
have you tried getting into download mode while powered off volume up and plug into pc
Click to expand...
Click to collapse
Success!! I'm in Download Mode... What next? ADB still doesn't look to be recognizing the phone.

wave28 said:
Success!! I'm in Download Mode... What next? ADB still doesn't look to be recognizing the phone.
Click to expand...
Click to collapse
well you should be able to use this guide http://forum.xda-developers.com/showthread.php?t=2432476 to get back to stock make sure you download correct files for your device

XxZombiePikachu said:
well you should be able to use this guide http://forum.xda-developers.com/showthread.php?t=2432476 to get back to stock make sure you download correct files for your device
Click to expand...
Click to collapse
Fingers crossed. Appreciate the help. I don't think I can go back to my Nexus!

XxZombiePikachu said:
well you should be able to use this guide http://forum.xda-developers.com/showthread.php?t=2432476 to get back to stock make sure you download correct files for your device
Click to expand...
Click to collapse
Error due to low batter. I'll have to see if I can charge it without it wanting to turn on. However, it looks promising -- after three times trying I got the utility to recognize the device at least!
Either way, I appreciate the assistance.

wave28 said:
Error due to low batter. I'll have to see if I can charge it without it wanting to turn on. However, it looks promising -- after three times trying I got the utility to recognize the device at least!
Either way, I appreciate the assistance.
Click to expand...
Click to collapse
SWEET!! Took a LOT of doing but it finally got restored to stock! Let's pray that never happens ever again!!!

wave28 said:
SWEET!! Took a LOT of doing but it finally got restored to stock! Let's pray that never happens ever again!!!
Click to expand...
Click to collapse
great to see everythings up and running

G2 bricked won't boot past LG

Hey guys I just got another one of these damn G2s
Anyway, got root fine on 12b and had issues trying to push the twrp recovery image to it, it kept failing for some reason. So I tried the Flashify option... and as you can tell by the thread title it worked excellently. And by excellently I mean I'm bricked.
I can get into download mode. But it won't boot past the LG logo. All I get is a black screen. Can someone help me revert to stock and get twrp installed?
Thanks:laugh: I'm using an S4 right now so no rush.
Also I'm a little illiterate on Android so take is slow and dumb it down- I don't develop and I don't code, I just enjoy other people's work as a casual user.

greydelta38 said:
Hey guys I just got another one of these damn G2s
Anyway, got root fine on 12b and had issues trying to push the twrp recovery image to it, it kept failing for some reason. So I tried the Flashify option... and as you can tell by the thread title it worked excellently. And by excellently I mean I'm bricked.
I can get into download mode. But it won't boot past the LG logo. All I get is a black screen. Can someone help me revert to stock and get twrp installed?
Thanks:laugh: I'm using an S4 right now so no rush.
Also I'm a little illiterate on Android so take is slow and dumb it down- I don't develop and I don't code, I just enjoy other people's work as a casual user.
Click to expand...
Click to collapse
Try holding volume down + power
Immediately when LG appears let go of both and ONLY hold onto power, should boot into option to factory reset
Hit power button 3 times to continue.

Tried that. It processes the reset and then immediately tries to reboot, and bootloops again.

greydelta38 said:
Tried that. It processes the reset and then immediately tries to reboot, and bootloops again.
Click to expand...
Click to collapse
Have you tried flashing back to stock?

doktor buknasty said:
Have you tried flashing back to stock?
Click to expand...
Click to collapse
That was what I was thinking but I don't know how through download mode. I feel helpless without being able to flash things :crying:

greydelta38 said:
That was what I was thinking but I don't know how through download mode. I feel helpless without being able to flash things :crying:
Click to expand...
Click to collapse
Please search next time http://forum.xda-developers.com/showthread.php?t=2432476
Also before flashing back to stock, read the directions several times so you have a understanding

greydelta38 said:
That was what I was thinking but I don't know how through download mode. I feel helpless without being able to flash things :crying:
Click to expand...
Click to collapse
WHen your g2 is powered off just hold volumeup and connect to a PC. If it doesn't go past the blue dots then you can't enter download mode either.

doktor buknasty said:
Please search next time http://forum.xda-developers.com/showthread.php?t=2432476
Also before flashing back to stock, read the directions several times so you have a understanding
Click to expand...
Click to collapse
I actually found this thread about 15 minutes before I got a notification of your post, thanks though

bender_007 said:
WHen your g2 is powered off just hold volumeup and connect to a PC. If it doesn't go past the blue dots then you can't enter download mode either.
Click to expand...
Click to collapse
Yes it enters download mode fine, as posted in op. thanks

bender_007 said:
WHen your g2 is powered off just hold volumeup and connect to a PC. If it doesn't go past the blue dots then you can't enter download mode either.
Click to expand...
Click to collapse
If I can't get into download mode either, then what?

agtwork said:
If I can't get into download mode either, then what?
Click to expand...
Click to collapse
Can you enter recovery?

bender_007 said:
Can you enter recovery?
Click to expand...
Click to collapse
The white screen where you can hard reset the phone? Yes.. I can get into it, but accepting the reset simply puts the phone back into a boot cycle.

Keeps Rebooting no matter what

Hello Guys,
I installed Pixel Experience Rom last week and today my phone is just rebooting and when I try to go to the TWRP recovery section after a few second my device reboots because of which i cannot wipe or install a new rom. I also tried to go to the fastboot section via TWRP but it reboots there also. Please Help me out.
Thanks

adimanish9 said:
Hello Guys,
I installed Pixel Experience Rom last week and today my phone is just rebooting and when I try to go to the TWRP recovery section after a few second my device reboots because of which i cannot wipe or install a new rom. I also tried to go to the fastboot section via TWRP but it reboots there also. Please Help me out.
Thanks
Click to expand...
Click to collapse
Please try to hold power off for 2 minutes and afterwards hold keys combination to boot to recovery.

strongst said:
Please try to hold power off for 2 minutes and afterwards hold keys combination to boot to recovery.
Click to expand...
Click to collapse
Have you faced this issue? Will thanks I will try today once I reach home.

adimanish9 said:
Have you faced this issue? Will thanks I will try today once I reach home.
Click to expand...
Click to collapse
No, never

strongst said:
No, never
Click to expand...
Click to collapse
Thanks Worked for me and suggest me should I continue with Pixel Experience Rom or Lineage OS 15

Samsung A20 semi-hard bricked

Please help ASAP. I tried to install lineage os with MindGapps. After I flashed lineageos with twrp, I rebooted it and now it doesnt turn on. I tried to go to download mode, but doesnt.
The phone doesnt turn on. When I press and hold power button + volume down button for 7 seconds, samsung+knox logo appears and then 'phone bootloader unlocked' warning appears for few seconds.
An hour ago, somehow I managed to open its download mode. To test how it got opened, I restarted my device, but unfortunately, I couldnt go back to download mode. Is there any way to solve this problem? I want to go back to download mode

Hold the volume + and - buttons down at the same time and then plug in the usb cable into the phone.

sammiev said:
Hold the volume + and - buttons down at the same time and then plug in the usb cable into the phone.
Click to expand...
Click to collapse
Thanks solved

sarthak.whenever said:
Please help ASAP. I tried to install lineage os with MindGapps. After I flashed lineageos with twrp, I rebooted it and now it doesnt turn on. I tried to go to download mode, but doesnt.
The phone doesnt turn on. When I press and hold power button + volume down button for 7 seconds, samsung+knox logo appears and then 'phone bootloader unlocked' warning appears for few seconds.
An hour ago, somehow I managed to open its download mode. To test how it got opened, I restarted my device, but unfortunately, I couldnt go back to download mode. Is there any way to solve this problem? I want to go back to download mode
Click to expand...
Click to collapse
I have a question. did you install the twrp to one ui 3.1 ? pls answer me bc I wanna get out from the stock rom . I used gsi roms on my previous phone ( lg g3) and I was really enjoying while using gsi roms . now the one ui 3.1 has so many bugs or idk maybe they are only happening to me but I got really sick of that

haiise said:
I have a question. did you install the twrp to one ui 3.1 ? pls answer me bc I wanna get out from the stock rom . I used gsi roms on my previous phone ( lg g3) and I was really enjoying while using gsi roms . now the one ui 3.1 has so many bugs or idk maybe they are only happening to me but I got really sick of that
Click to expand...
Click to collapse
I first flashed twrp-black or something and it didn't work properly so I installed twrp-official downloaded from website. But then, after installing the official one, the recovery got corrupted. I couldn't boot into downloadmode, but luckily, it was just some key combination that was wrong, so, with a right key combination. I booted into download mode and reinstalled the initial firmware.

sarthak.whenever said:
I first flashed twrp-black or something and it didn't work properly so I installed twrp-official downloaded from website. But then, after installing the official one, the recovery got corrupted. I couldn't boot into downloadmode, but luckily, it was just some key combination that was wrong, so, with a right key combination. I booted into download mode and reinstalled the initial firmware.
Click to expand...
Click to collapse
Ohh glad to hear that you fixed your phone

Hello, I just finished to install LineageOS on my A20 and after reboot I saw the same message of Samsung Knox and the bootloader warning then a black screen and reboot automatically. Any sugestions?

sh_amuel said:
Hello, I just finished to install LineageOS on my A20 and after reboot I saw the same message of Samsung Knox and the bootloader warning then a black screen and reboot automatically. Any sugestions?
Click to expand...
Click to collapse
Yes, it just looks like it is bricked but it is not yet completely bricked.
The solution was simple.
First, completely power off device (don't restart, just turn off). After that, by certain keys combination, go to download mode.
It seems it doesn't work while restarting but works if it is completely turned off.(At least in my case it had been so)

sarthak.whenever said:
Yes, it just looks like it is bricked but it is not yet completely bricked.
The solution was simple.
First, completely power off device (don't restart, just turn off). After that, by certain keys combination, go to download mode.
It seems it doesn't work while restarting but works if it is completely turned off.(At least in my case it had been so)
Click to expand...
Click to collapse
I do know how to enter in download mode, but even when I upload the TWRP again and start over the process it get into the same black screen. I was wondering if Samsung Knox is blocking this action.

I have a one A20(SM-A205F).And I when installing the rom with odin in device, I unplugged the device cable on pc. Since that time device no reaction.PC, seen one second device's processor name. Can I bring the device back to life ?

MrMusti53 said:
I have a one A20(SM-A205F).And I when installing the rom with odin in device, I unplugged the device cable on pc. Since that time device no reaction.PC, seen one second device's processor name. Can I bring the device back to life ?
Click to expand...
Click to collapse
try to flash original software

haiise said:
try to flash original software
Click to expand...
Click to collapse
Any program can't see the device and the pc only saw it for a second

MrMusti53 said:
Any program can't see the device and the pc only saw it for a second
Click to expand...
Click to collapse
can you go to download mode ?

haiise said:
can you go to download mode ?
Click to expand...
Click to collapse
No, phone's no reaction

MrMusti53 said:
No, phone's no reaction
Click to expand...
Click to collapse
konudan bağımsız türk müsün la
Translated by GT: independent of the subject are you turkish

sarthak.whenever said:
Thanks solved
Click to expand...
Click to collapse
it didnt work for me , is there any other combo