S9+ no boot - Samsung Galaxy S9+ Questions & Answers

I flashed twrp and installed magisk successfully. However I entered magisk and it asked me to update via direct method which I did. Then the phone restarted I got this error... I can boot into download mode but not twrp. What should I do ? Thanks

I fixed it..just reflash firmware using Odin. Bummer now I have to wait 14 days again basically

Related

Flashing issues after using Chainfire's flashfire app

Hi friends,
So here's a thing:
I was trying to update my Nexus 9 to the latest Slimrom build , and I used Chainfire's flashfire app. It didn't work and sent the tablet in a boot loop. But it also wiped my recovery so I couldn't even select my recovery.
So no issues, I used the Wugfresh nexus toolkit to flash it back to stock and unroot. Bootloader is still unlocked, so I just root it again and go ahead and try to install the update using Wugfresh. It works, but says the vendor.img is wrong. So I downloaded the correct vendor.img and tried to flash it, but of course because the tablet is encrypted TWRP asked for a password. I hit cancel and tried to continue, but Wugfresh just hung at that step.
So I tried to manually flash the ROM, but now it gives me a vendor.img error and will not flash anything. Trying to flash anything sends the device in a bootloop.
TLDR; I can restore to stock and root, and also access the bootloader and recovery (TWRP) but can't flash anything without sending the device in a bootloop.
I've currently restored the tablet to stock via wugfresh's tool and rooted. So I'm back at the beginning, except with this vendor.img issue when I'm trying to flash a ROM.
Anyone have any ideas?

Samsung Galaxy A20 October Security Update

Hi Guys
I've rooted and installed TWRP On my A20(A205F) successfully.
Yesterday I decided to check for updates and I found that the A20 now has an October Security Update.
[I'd also like to state that I haven't been able to patch my boot.img in Magisk, It failed to download the Magisk v20 Zip all the time, so I got it from somewhere else and tried to get it to work. Eventually it worked and managed to download the zip and patch my boot.img for october update but once I tried it again it keeps failing to download the installer zip.]
So I downloaded the whole firmware and did a full on backup of all my stuff then I proceeded to flash via odin the updated firmware. I've managed to get Root via Magisk working 100% but then I went on to flash TWRP and came out with a bootloop, actually I've tried multiple ways to install TWRP and Magisk without a successful outcome I've now come back to the June Update so I got Magisk and TWRP back.
Some links on the Github page of Magisk isn't working??? Whats up with that? I couldn't download anything from there.
So is there anyway someone could help with getting the update and having TWRP and Magisk working again?

Stuck at Bootloader unlock warning screen | Magisk

Dear all, I'm using Huawei p20 lite al00C675. I had rooted long back using magisk. And everything was fine. Recently, I tried to unroot for an upgrade, and later rooted back. However after that, my magisk was not giving root prompts. So superuser was getting denied for all, although magisk modules were working.
I had magisk 20.3. In a bid to fix this issue, I tried reinstalling magisk. I uninstalled first and while rebooting, went to twrp, installed magisk 20.4. But that's where the issue happened.
It went into bootloop. So I went to twrp and uninstalled magisk. Now when I booted, it said no boot image. Then I reinstalled magisk 20.3, but now it is stuck at 'This device cannot be trusted' screen. I've tried factory reset via twrp, but no use.
Please help. I don't want to lose this phone. Service centres are closed due to corona lockdown.
Arseon said:
Dear all, I'm using Huawei p20 lite al00C675. I had rooted long back using magisk. And everything was fine. Recently, I tried to unroot for an upgrade, and later rooted back. However after that, my magisk was not giving root prompts. So superuser was getting denied for all, although magisk modules were working.
I had magisk 20.3. In a bid to fix this issue, I tried reinstalling magisk. I uninstalled first and while rebooting, went to twrp, installed magisk 20.4. But that's where the issue happened.
It went into bootloop. So I went to twrp and uninstalled magisk. Now when I booted, it said no boot image. Then I reinstalled magisk 20.3, but now it is stuck at 'This device cannot be trusted' screen. I've tried factory reset via twrp, but no use.
Please help. I don't want to lose this phone. Service centres are closed due to corona lockdown.
Click to expand...
Click to collapse
Hi,
A) try update your phone via eRecovery & Wi-Fi ("download latest ....and recovery") .
B) you can also use Service ROM (dload method & three button combo). This process will erase all your data and will lock your bootloader again!
Service ROM link:
https://androidhost.ru/Ukr
(hope you are running EMUI 9 Follow instructions in file "ReleaseDoc", it can be found after unpacking .zip.
Crossing fingers

Reinstalling TWRP on F1

Hi all, so, i wanted to boot into twrp today only to realise that i cant since the MIUI 10+ update.
My device is still rooted with Magisk installed but in order to update my magisk i need to flash into TWRP recovery. I've downloaded 3.3.0.0 version of TWR.img and when i want to flash it trough TWRP app i get Flash Failed! messege..So how do i reflash again?
Edit: seems like my magisk gone too, i only have magisk manager now..
Kipce said:
Hi all, so, i wanted to boot into twrp today only to realise that i cant since the MIUI 10+ update.
My device is still rooted with Magisk installed but in order to update my magisk i need to flash into TWRP recovery. I've downloaded 3.3.0.0 version of TWR.img and when i want to flash it trough TWRP app i get Flash Failed! messege..So how do i reflash again?
Edit: seems like my magisk gone too, i only have magisk manager now..
Click to expand...
Click to collapse
Reboot to bootloader and fastboot flash recovery twrp.img with your pc
Then fastboot reboot
Hold volume up and power till twrp boots
Sent from my SM-N960U1 using Tapatalk
clsA said:
Reboot to bootloader and fastboot flash recovery twrp.img with your pc
Then fastboot reboot
Hold volume up and power till twrp boots
Sent from my SM-N960U1 using Tapatalk
Click to expand...
Click to collapse
How, i forgot how all of this is done.
Edit: looked up an indian guy and solved it, thank you
One minute google will help you a lot.... I trust in you.

Question Stuck in bootloop

Hi there,
I ****ed up and I'm now stuck in bootloop with no access to a computer and was wondering if I could do anything to solve my issue.
I've been testing blu spark kernel for months and wanted to go back to stock kernel.
I flashed my backup from FKM (made it with FKM too) and now I'm in bootloop.
My backup was from january build and my phone has been updated to february build since. Is it the reason of the bootloop ?
Anyway, I'm in a bootloop now and I only have an other rooted Pixel 6.
Can I do anything with it ?
I tried Android Flash Tool from Google within Chrome but the download of the rom is always stucked at some point.
I tried magisk adb module but I'm afraid it's not up to date as I'm still in fastboot after I flashed the bootloader and update the image.
Any ideas ?
First try to turn off your phone and then reboot to bootloader. Download factory image and launch flash-all.bat.
Sorry for your datas.
I haven't been able to launch flash-all.sh with termux with the second Pixel 6 I have as the fastboot version from the magisk module is too old.
I don't have a computer to do it.
bobby8921 said:
I haven't been able to launch flash-all.sh with termux with the second Pixel 6 I have as the fastboot version from the magisk module is too old.
I don't have a computer to do it.
Click to expand...
Click to collapse
Get a computer, or at least borrow one so you can restore your device using Google's flash tool. You're not fixing your bootloop without one.

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