S9+ stuck in download mode - Samsung Galaxy S9+ Questions & Answers

So, I had Magisk and my phone was rooted, but when I decided to unroot and did a complete uninstall of Magisk: my phone restart but it keeps on restarting continuously, so I decided to go into recovery mode and followed tutorials on how to fix it. Firstly, I reset everything using the TWRP advanced wipe feature (I ticked everything). Then, I decided to flash LineageOS (the file attached) with TWRP and reboot, now the device is stuck in download mode. For some reason, I cannot boot into recovery mode and It's just going to go to be stuck forever in download mode, every time I restarted it or try to boot into recovery mode. What should I do?

anon57819 said:
So, I had Magisk and my phone was rooted, but when I decided to unroot and did a complete uninstall of Magisk: my phone restart but it keeps on restarting continuously, so I decided to go into recovery mode and followed tutorials on how to fix it. Firstly, I reset everything using the TWRP advanced wipe feature (I ticked everything). Then, I decided to flash LineageOS (the file attached) with TWRP and reboot, now the device is stuck in download mode. For some reason, I cannot boot into recovery mode and It's just going to go to be stuck forever in download mode, every time I restarted it or try to boot into recovery mode. What should I do?
Click to expand...
Click to collapse
Use Odin to flash latest stock firmware and start again.
To install lineage with twrp in wipe menu - advance wipe select only Data, System, Cache and maybe Vender if you have it after you have installed twrp properly first.

It's resolved now

Related

[Q] Entering CWM Recovery Mode Resets My Phone. What should I do?

I have a Micromax Canvas 2.2 A114. I recently flashed a custom ROM and it was working pretty well.
Recently, I tried to install Xposed Framework, my phone was stuck in bootloop after the reboot process. I removed the battery and put it back, it was again back to normal.
So, I tried to enter CWM recovery, but instead my phone booted up and everything was factory reset.
Now, whenever I try to enter recovery mode, my phone gets factory reset. If I don't try to enter recovery mode, everything is normal.
What should I do? How to enter CWM recovery without factory resetting/rebooting my phone?
I want to flash the Custom ROM or Stock ROM again but how to do it without getting into recovery mode.
Please help me.

Boot Verification Fail Cause: MISMATCHED_SIG_LEN

So me trying to install a MM rom on my LP phone have caused me this error. Is there any guide out there that would help me fix this?
I have tried booting into TWRP using vol down + power but it just keeps leading to this error. I can't even get into download mode. I am guessing im SOL?
Factory reset first , TWRP is started next boot
vvnthuanan said:
Factory reset first , TWRP is started next boot
Click to expand...
Click to collapse
Whenever I do Factory reset all I get is the boot loop, also for download mode.
EDIT: FIXED! I am just an idiot at reading.
you can try to install nexus toolkit ( support LG adb ) . check at bootloop , reinstall TWRP image and choose reboot recovery

Galaxy S3 crazy boot loop

hi everybody.
my phone is booting every time. with odin i installed already twrp and cwm. with twrp I can just see the logo and then the phone is booting again. with cwm, i am able to see the menu but when i try to wipe the phone, the phone starts to boot again.
i installed cyanogenmod via adb but the phone is not starting android.
the last chance i have is to hope that someone of you have a solution.
i uploaded a video to show you what i mean.
ht t p : / / s e n dvid.com/u4z3xfu7
thanks
andi
Have you tried flashing a stock ROM?
yes. but it is still in the loop.
Flashing in Odin was successful?
After flashing the stock ROM, did you perform a factory wipe before booting for the first time?
thats not possible. i can boot to the clockworkmod recovery but if i choose the option "wipe data/factory reset" the recovery will be closed and the smartphone boots again and open the recovery.
1, download mode and flash an official stock rom (one package) via odin. Make sure it is for your device specifically.
2, Boot to official stock recovery and wipe data/factory reset. If the phone reboots after this you need to be prepared to key combo to download mode BEFORE it boots android.
3, Flash the official stock rom again.
All remnants of any previous roms will be gone and you should have a booting phone.
Beamed in by telepathy.
It worked with the stock recovery. Now I was able to install cyanogenmod. Thank you very much!!!

NEED HELP - How to reboot a phone without OS directly on recovery?

I have a LG-E410f with TWRP installed. I was going to install a new room, entered TWRP and wiped everything (cache, data, etc) and choose to reboot to recovery. But when I did that the phone got stuck on the LG logo! I still can acess Download mode (it means I can use LG Flash Tools to reinstall the factory room) but I will have to do every steps again (root, install TWRP, etc). There's any way to boot it to recovery?

Stuck in twrp

I thought I could factory reset my phone since I couldn't install any apps for some reason, I did it through the OS and not twrp and after that it would only boot to twrp. Then I thought I could just flash a rom through twrp, all it said was that it was done and successful, but it would still boot into twrp. After that I thought I should flash kdz with lgup but whenever I go into download mode it reboots after about a minute. I am not very experienced as you can tell, please help.
Before this, I had rooted my phone through this tutorial:
https://forum.xda-developers.com/tmobile-lg-v10/general/root-h901-nougat-t3773942

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