Galaxy A40 - Stuck in Bootloop after flashing wrong ROM, can't enter Recovery - Android Q&A, Help & Troubleshooting

Hello XDA Community,
I just got a Galaxy A40 (SM-A405FN/DS) and flashed TWRP.
Everything was going well, so I decided to try to flash an unofficial LineageOS GSI.
I followed some instructions I found on a website:
- Wipe Vendor, Dalvik/ART cache, Wipe Cache, Data, System, Internal Storage using TWRP Advanced Wipe
- Flash Image to System Partition (Used: lineage-16.0-20191017-UNOFFICIAL-treble_arm64_avN.img.xz)
- Reboot & Pray
I am now stuck in a bootloop, sometimes I am able to start TWRP, but I have tried to flash other images but wasn't successful.
(Loop: Bootscreen -> Warning (Press Power Key) -> Bootscreen -> Blackscreen (Reboot))
I am currently downloading the stock image.
How can I enter recovery mode? Is there anything else I can try?

Got the same goal, installing a Lineage GSI ROM. But... I got stuck in a bootloop just like you after flashing TWRP.
You have any tips getting out of it?
Solution: Okee, I drained my battery first. Then I pressed volume up and down together and connected it to my pc. This way I got it in download mode. (thank god!)

So i managed to get into download mode after being stock in restart loop by holding off button. When screen got black, i plugged my phone into my pc and pressed volume up and down buttons. It worked. I am a genius.

Anyone managed to get a custom ROM to work on that device ?

welpitwentwrong said:
So i managed to get into download mode after being stock in restart loop by holding off button. When screen got black, i plugged my phone into my pc and pressed volume up and down buttons. It worked. I am a genius.
Click to expand...
Click to collapse
YOU ARE AN ABSOLUTE LEGEND THX ALOT

Related

Layers messed up the phone on AOSP 5.1.1

So I was experimenting with some customization tools (gravitybox, some other twrp modules) and everything was fine. Then I installed a custom layer I downloaded from the Play Store on Layer Manager and now the phone boots into the stock wallpaper, the screen is flashing, yellow led constantly on, there are no buttons anywhere, I can't do anything, the only command he can do is the screen used to turn the phone off, and even with that I've tried booting into safe mode and it's the same. I wanted to make a factory reset on TWRP but I can't even boot into recovery, it just shows the MI logo and boots normally. I also tried fastboot flashing TWRP again and although it flashes well the normal boot remains. Can someone help me?
EDIT: I managed to boot into TWRP, I was doing it wrong after all. I will reflash the ROM.
SkinCoffin said:
So I was experimenting with some customization tools (gravitybox, some other twrp modules) and everything was fine. Then I installed a custom layer I downloaded from the Play Store on Layer Manager and now the phone boots into the stock wallpaper, the screen is flashing, yellow led constantly on, there are no buttons anywhere, I can't do anything, the only command he can do is the screen used to turn the phone off, and even with that I've tried booting into safe mode and it's the same. I wanted to make a factory reset on TWRP but I can't even boot into recovery, it just shows the MI logo and boots normally. I also tried fastboot flashing TWRP again and although it flashes well the normal boot remains. Can someone help me?
Click to expand...
Click to collapse
If you're able to access twrp somehow, flash the rom again and just wipe cache and dalvik cache. You won't lose any data at all.
Edit - I don't think layers can mess with your recovery. Fastboot flash recovery and try booting into it by pressing volume up and power button. If that doesn't work.. Press power button and both volume up and down and see if it boots into recovery. Once it does, just flash the rom without wiping data.
Boot into TWRP & Mount "System"
Using File Manager navigate to /system/overlays
Delete all files one by one inside overlays folder
Reboot to system

Stuck in a bootloop after unroot, Coolpad E560 (Porto/Sky mini)

Hello! I rooted my Coolpad E560, a.k.a. Coolpad or Sky Mini and everything was fine until I decided to unroot it. It immediately restarted and will not boot ever since (stuck at logo). I opened recovery mode and selected wipe data/factory reset but it didn't solve the problem, neither did wipe cache. Then I selected reboot to bootloader. "Download and Install the package? Press volume up to agree or volume down to cancel". I press volume up and then it's stuck on "Information Do not disconnect the data cable". In the end I tried to flash stock rom. The only firmware I found was (phone name).CPB and it seems like the only flashing tool that can use .CPB is YGDP. But the flashing process doesn't even begin, it gets stuck on Entering download mode... I unsuccessfully tried to enter download mode on my phone. It doesn't have removable battery, some key combinations I tried didn't work. Now I don't know what to do. Any help will be appreciated.
bump
bump
How did u solve it ?
Did u solve it ? do you have any backup files that u can send me ?
denico_bg said:
Hello! I rooted my Coolpad E560, a.k.a. Coolpad or Sky Mini and everything was fine until I decided to unroot it. It immediately restarted and will not boot ever since (stuck at logo). I opened recovery mode and selected wipe data/factory reset but it didn't solve the problem, neither did wipe cache. Then I selected reboot to bootloader. "Download and Install the package? Press volume up to agree or volume down to cancel". I press volume up and then it's stuck on "Information Do not disconnect the data cable". In the end I tried to flash stock rom. The only firmware I found was (phone name).CPB and it seems like the only flashing tool that can use .CPB is YGDP. But the flashing process doesn't even begin, it gets stuck on Entering download mode... I unsuccessfully tried to enter download mode on my phone. It doesn't have removable battery, some key combinations I tried didn't work. Now I don't know what to do. Any help will be appreciated.
Click to expand...
Click to collapse

Stuck in bootloop can access recovery no fastboot and no usb debugging..

Hi guys,
I own an InFocus m810 and had flashed a marshmallow based rom. It was all working fine until after 6 months my phone started to hang a lot so I decided to factory reset it... I tried to go to twrp but it wasn't going to recovery mode like it used to (by holding power and volume up buttons together) so I downloaded quick boot from play store and booted into recovery there I wiped my dalvik cache and all the files then I flashed supersu zip and rebooted but it's still stuck on the boot screen. I tried to go to recovery mode by trying all the combinations (vol up+ power, vol down+power,etc) but in vain... I even tried to flash my stock rom again by going to fast boot mode but it isn't even going to fast boot mode so that my pc can recognize it but it doesn't work.. when I press vol up+power(combination for recovery mode) it restarts and again go to boot logo and get stickers there... I looked over entire internet but everywhere it's telling to flash rom or wipe cache etc... but I can't even go to recovery and fast boot to wipe cache or flash rom please help me thanks.. i have an unlocked bootloader...
UPDATE: I can now access revovery (twrp) but when i cleared dalvik cache and went to reboot page it says no os installed...now i am worried to reboot it as i could loose access to recovery.... i cant find any recovery flashable rom ... there are some roms but they are only SUT(software upgrade tool) flashable any help would be appreciated..

Galaxy S3 stuck on boot Logo can't restart in recovery or download mood either

i think my volume keys are not working, becuase they didn't work on Lineage OS or CM14.1
TWRP recovery
i wiped cache, data, system, dalvik cache, internal storage
OTG USB keep failing to install Lineage OS 14.1 and i get with error 7
i went download mode and flash latest TWRP with Odin
now my Galaxy S3 stuck on boot Logo can't restart in recovery or download mood either.
any idea how to get in recovery or download mood. or get out of this stuck samsung Logo?
You need the volume buttons to go to recovery or download mode. Adb only works in recovery mode anyway so thats that.
I think there's a way to clear cache on boot by holding home while pressing power, keeping hold of home while it boots, something like that.
Otherwise you need to open the phone to check the buttons.
Beamed in by telepathy.

Switched ROMS (Evolution X -> Nusantara) -> NOW Bootloop

Hi Community,
I read some posts how to fix my Problem, but i cant go to a service Point.
So I was using the Evolution X for a long Time (Installed with TWRP 3.1.0).
And now i wanted to change to the Nusantara Project (Vanilla), I did a clean Flash, everything worked i could access the System.
Than i had problems installing Play Store, so i rebooted into Recovery via the System. But now im Stuck in the Loop.
Can i Somehow connect my Phone to the PC and Reset?
Can someone tell me if i Hard/soft bricked my phone ?
Just a little advice, would be really appreciated.
Thanks a lot
Go to TWRP, wipe system, cache, data and dalvik. Now flash nusantra and whichever GApps are recommended for it (if there are no recommendations then use OpenGApps, make sure the architecture is correct). Now wipe dalvik and restart. Sometimes, certain roms begin to bootloop if you boot into the rom first, then try to install gapps later.
If you still have issues, just reflash the stock rom.
I cant access the TWRP anymore, im just stuck on the Bootloader, no matter how i turn on The Phone (Volume Up + Power ON ), (Volume Down + Power), (All 3 Buttons)
Nothing works anymore i dont understand ....
Im searching the net but i cant go to fastboot or something else, its just keeps on rebooting ...
So it's bootlooping, but you cant access recovery?
When the screen turns off, press the key combo and it should go to recovery.
Your best bet is to take it to a service centre, but if that really isn't possible for you, then wait for its battery to drain completely, then when you plug in the charger, instead of turning the phone on, press the key combo to enter the recovery. From there, wipe and flash some other OS.
I've also heard that certain versions of TWRP don't support some roms, leading to a bootloop. In that case, you'll have to use orangefox recovery to flash the rom (orangefox is flashable via twrp)
Yes its Bootlooping.
When i turn it on, on the Left Corner "Recovery Mode" blinks for one second. Than the usual Text appears:
"Orange State
Your Device has been unlocked and cant be trusted
Your Device will boot in 5 Seconds".
So after a couple of seconds (around 10-20 sec)
It turns off and immediately on again. I Just can turn it OFF when i hold all 3 Buttons.
Than i try starting it with Volume up + Power / Volume down + Power, But i cant access Recovery or TWRP.
So i should wait til the battery gets low and try it again ?
Like i said, my custom Rom (Evolutionx) and TWRP just worked fine. I dont know man ...
Well since your bootloader is unlocked, try flashing the stock rom again. Look for a tutorial and follow it.
Hi I managed to unbrick my device with this guide, and im back on a stock rom
Unbrick
i ran following commands to get to my custom rom:
I run adb reboot bootloader,
add executed following commands.
(Pitch Black recovery 3.1)
- adb reboot bootloader
- fastboot flash recovery recovery.img
-fasboot reboot recovery
It just hang up and booted after a while into the normal system.
But im not able to get to the recovery menu ?
When I restart and hold Volume up + Power, i go in a loop and the phone keeps restarting over and over again.
what have i Fu**ed up ?
Do i need another recovery tool ?
sorry guys, i appreciate your help a lot tho !
EDIT: Is my bootloader unlocked ?
I can access via "adb reboot bootloader" the phone
and on the blackscreen on the phone it is written:
oppo verfiy pass
fastboot_unlock_verify ok
Update:
So i tried some Stuff and i got Red State. No Problem i Unbricked it once again and now im on Stock Android 10.
Now im Trying to enable the bootloader again.
I downloaded the In Depth Test_Realme_6.apk but i keep getting the Error that i should update the system.
So should i update the system ?
I cant find a CURRENT Tutorial to make this work, please help...
If you cant find a tutorial for your version, why not downgrade back to a previous one if possible.

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