TWRP dm-verity problem bootloop - Galaxy S6 Q&A, Help & Troubleshooting

Hello guys,
I have flashed TWRP via Odin on my stock sm-g920f on nougat, Odin said "pass" and I can use the recovery normally, but the phone won't start and is stuck in bootloop. I have read (I should have done this before...) that TWRP Needs a kernel which Supports dm-verity.
So what can I do to make the s6 run again?
thanks!

You need just flash latest SuperSU zip via TWRP.

Worked! Thanks a lot.

Related

Help, MMB29Q update wipes TWRP

Hi all,
Recently I updated my Nexus 5 from Lollipop to Marshmallow 6.0.1 (MMB29Q) - latest build.
everything stock works fine but, once I flash a customer recovery, in my case TWRP it stops working...I get either a startup loop or TWRP gets erased by stock recovery.
I tried various steps ...
flashed TWRP 2.8.7.1 - rebooted to boot loader was able to get into TWRP but, once I reboot system, everything works but TWRP is gone/erased and replaced by stock recovery?
Flash TWRP 2.8.7.1, then flash latest TWRP 3.0, reboot to boot loader and can get into TWRP but once i reboot into system, I am stuck on the initial boot loop.
I have to start from scratch of flashing system and boot etc to get past the loop and it still replaces TWRP with stock recovery.
I can always get into Fastboot but when I go to recovery it seems its being replaced by stock recovery.
anyone experiencing this issue? thanks for your help.
I guess I am doing something stupid but, not sure what...and thanks for your help
If you give more detail on the steps you are taking it will be easier for someone to help. Also, have you tried doing a factory reset when it bootloops?
thanks for the response..here are the details..
I had Lollipop with TWRP 2.8.7.1
yesterday, I downloaded latest build from android site...extracted all files....booted into bootloader and flashed all files..
rebooted - Marshmallow works perfectly...offcourse it not rooted yet or its locedback due to this flash
Scenario:1
So downloaded TWRP 2.8.7.1 and flashed it as recovery, no errors nothing...i rebooted to bootloader and went to recovery to confirm TWRP is there
I rebooted the system - TWRP gives option to root which I said yes so its rooted. I reboot system, this goes into bootloop - I wait for say 5-10 min in this loop mode and I see that adb can recognize the device but nothing else....its stuck in loop
when I force shut down by holding power button for few sec - and go back bootloader/recovery - TWRP is still there
***note*** I did factory wipe in TWRP but that did not fix above condition.
Scenario2:
exact same steps but after I flashed twrp2.8.7.1, I rebooted bootloader and flashed twrp 3.0 as well confirmed twrp 3.0 is flashed and rebooted system - phone start normally no issues - when I restart to bootloader - no TWRP exists, its replaced by stock recovery
Scenario 2, I tried couple of other ways and still the same thing happens - twrp 3.0 get erased.
not sure what I am doing wrong but TWRP doesn't stick
since this is my active device - i flash system.img and boot.img to get the phone to working condition
thanks for your help
Try flashing the latest supersu to get root.
audit13 said:
Try flashing the latest supersu to get root.
Click to expand...
Click to collapse
That did the trick.....thank you very much. I was using older version of supersu thinking it was latest.....I downloaded V2.65 and installed it and that fixed all my troubles..
muchas gracias

Can't install any custom rom!

First of all, sorry for my bad english!
Well, I started to look for some good custom roms for my galaxy s6. I was using the xtrestolite deodexed 2.4, and then I changed to Arrow Rom. Then, the developers of xtrestolite updated their rom to android 6.0
But now, idk why, when I try to flash any rom with twrp, I get no errors, but the phone doesn't boot up. Only with I install the stock rom with odin. I tried updating the modem to a android 6.0 version (the xtrestolite thread told me to do so), i dont know with this can help, I'm kinda new in this custom rom things.
So, summarizing, I can flash custom roms with twrp without errors, but the system get stuck at the logo, sometimes without the red alert (recovery not SEandroid enforcing). And then, at this point, I can only shut it down and go to twrp or download mode.
you need to follow the recommend steps exactly. upgrade both bootloader and modem for your device. Then do a date factory reset before flashing the rom.
these steps will install the proper files to avoid boot loops. the reset will make sure there are no strays files left.
The thread says to install the bootloader and modem for android 6.0, then install twrp, and then do a factory reset to flash the rom. But how do I flash the modem and bootloader? I know I have to flash the boot loader under the BL button on odin, and the modem under the CP button. But when I flash them, my phone automatically start to boot loop. And at this point, I can't enter twrp anymore, just download mode. I'm using currently the stock 5.1.1 rom for galaxy s6 (g920i) rooted with a custom kernel (unikernel v2 0008), and with the twrp recovery 3.0.0.1 . What are the steps to flash the custom rom? And why I need to flash boot loader and modem for this rom? I never had to do this to any other custom rom!
once you have flashed the bootloader and modem, you need to reflash twrp. as new bootloader and modem have broken the connectionfactory reset
After resestablishing twrp, boot into twrp and do a factory reset. Then install the ROM
The reason you need to do all this because 6.0.1 has been given a major redesign including touchwiz. The previous roms you have flashed only has been upgraded from 5.0.2.
Ok, so can I put them all together in odin, (bootloader in
BL, twrp in AP, and modem in CP), and then flash it? Or I have to flash them separately and uncheck the auto restart in odin? Because when I flash just the bootloader, it get boot loop when restarting.
Ok, once I flash just the boot loader via odin, and my phone restarts, I get stuck at the logo, not even a boot loop. Then, if I shut it down, i can't enter twrp, only download mode. Even if I flash TWRP again, I can't manage to enter it. So, at this point, I always have to flash the stock g920i rom with android 5.1.1, to turn it back on, and then flash TWRP.
Does someone know how to proceed?
you need to flash boot loader and modem together. make sure your phone is fully charged.
then flash twrp, then boot into recovery without starting the phone.
do a factory rest without flashing the rom. flashing bootloader modem and twrp should not be causing a bootloop.
then start the phone let it settle down and see if the 5.1.1. rom works with the upgraded bootloader, modem and twrp.
load the rom onto your hard drive, then reboot into twrp and install the rom.
try this the first time as a dirty install, if that does not work. I suggest you do a full erase and start from the very begining.
Thanks! I'll try this.. I'm kinda busy this week so I'll do it in the mext weekend! I tell you if I made it work the soon as possible.. thx for replying!
Sorry for taking so long to answer this post!
I want to ask you, if I flash the stock marshmallow rom in my galaxy s6 g920i, can I flash the XtreStoLite marshmallow rom, without flashing the bootloader and modem? Or I have to flash the marshmallow bootloader and modem for the custom rom anyways? Sorry for bad english
Ok so, I flashed the stock g920i marshmallow rom, and my modem and bootloader are EPC6 and EPC3. In the topic of the deodexed XtreStoLite custom rom, it says to download and flash the modem and bootloader for marshmallow 6.0.1, but I'm already running this version. BUT I have the EPC6 bootloader and in the topic, I can download the EPC7. Is it there any difference? Or can I flash the custom rom without flashing this EPC7 bootloader?
And, btw sorry for being such a noob, but can you explain me what are the bootloader and modem functions?
Thx for all!!

Stock ROM TWRP Recovery flashed but wont Load/System won't boot

I have samsumg galaxy S6. Today G920F 6.0.1 I downloaded a stock ROM from Sammobile for G920F 6.0.1 it loads fine flashes fine, But at first when I flashed TWRP it wouldn;t boot into recovery. Then it wouldn't even boot normally it just sits at the first samsung logo until I reflash my ROM via Odin, so I searched a bit and found a thread that said to install UniKernal for it to work, so I did now TWRP loads up but my system won't boot up normally. SO I can't get onto my system normally
EDIT: I managed to get it to work, I flashed Magisk, Systelmess xposed 86.4 and supersu rebooted, systemless said it was installed went to check supersu and it wouldnt load so i reflashed it and now xposed says ther eis no framework installed, so i reflashed that and Xposed does not detect it.
Can someone please help me I have searched on here and google and cant find any options that fixes my problem. My phone has been broken for over 24 hours now
Flash G920FXXU4DPGW (XEF) ROM via Odin. (You can download it via SamFirm).
After you've flashed, flash this TWRP via Odin and boot into it;
http://www.arter97.com/browse/S6/kernel/21.1/g920fi/arter97-recovery-g920fi-21.1-twrp_3.0.2-0.tar.md5
When you boot into it, flash this via TWRP;
download.chainfire.eu/supersu
After you've flashed it, reboot the system. When you've rebooted, reboot into TWRP and flash this;
https://www.androidfilehost.com/?fid=24591020540824278
When you've flashed this, reboot the phone and install this apk;
http://forum.xda-developers.com/attachment.php?attachmentid=3383776&d=1435601440
forumber2 said:
Flash G920FXXU4DPGW (XEF) ROM via Odin. (You can download it via SamFirm).
After you've flashed, flash this TWRP via Odin and boot into it;
http://www.arter97.com/browse/S6/kernel/21.1/g920fi/arter97-recovery-g920fi-21.1-twrp_3.0.2-0.tar.md5
When you boot into it, flash this via TWRP;
download.chainfire.eu/supersu
After you've flashed it, reboot the system. When you've rebooted, reboot into TWRP and flash this;
https://www.androidfilehost.com/?fid=24591020540824278
When you've flashed this, reboot the phone and install this apk;
http://forum.xda-developers.com/attachment.php?attachmentid=3383776&d=1435601440
Click to expand...
Click to collapse
Also, that rom cant be found on samfirm.
Jordy87pack said:
Also, that rom cant be found on samfirm.
Click to expand...
Click to collapse
It can be
forumber2 said:
It can be
Click to expand...
Click to collapse
Lol. I always thought samfirm meant sammobile firmware section. Where do I get that program? Is it used to flash firmware? Looks nice.

I cant install TWRP on SM-P900 ;(

Hi
This is really frustrating. I own many Samsung devices and never had any issue installing twrp, so I am not a noob when it comes to firing up Odin and flashing the image however I am stuck with this device.
I used couple guides with no success. ;( I cant get rid of the Samsung recovery and replace with TWRP. Odin says success but that is just a lie.
I tried both the lollilop bootloader and the older one then TWP with various versions (3.1x , 2.8.x) No luck.
Can anyone please provide me "working files" with "simple steps" in case I am missing out on some minor details. This is SM-P900 Kitkat 4.4.2 version.
- I flash the bootloader using the BL slot in dl mode
- I reboot to downloader again and and install TWRP
- I type adb revoot recovery
Boom, I am back to frigging Samsung recovery
Hi ,
This is a follow up
The only guide that worked for me is this one. It might be helpful to others.
https://forum.xda-developers.com/ga...guide-install-official-lollipop-p900-t3154362
I had trouble getting TWRP to take at first too. It seems Samsung overwrites the recovery upon rebooting so even though TWRP flashed successfully it just gets overwritten when the system restarts. The simple solution for me was to disable the Reboot option in Odin, install TWRP, manually shut down and then enter Recovery mode. Hope that helps. I came across this suggestion either in the thread linked to above or while googling.
Im installing into properly rooted and I have twrp 2.8.7. I want 3+ TWRP.
I flash with PDA/AP and with "autoreboot" unchecked. I power off and power+home+volUP for recovery.
Tablet enters a "enttering recovery" bootloop which can be only disrupted by going into power+home+volDWN to enter Download, and than I can flash with ODIN 2.8.7.
2.8.7 is the latest I can boot into. WHAT IS WRONG?!!!!!!!!! I lost hope, with flashing 100x
Did you try updating TWRP from inside TWRP?
Sent from my Samsung SM-P900 using XDA Labs
try do a full wipe from stock recovery . after that flash twrp selecting the ap and bl in ODIN twrp3.1....tar booth of them (AP & BL)
no no no i tried everything. but than I found out this post : https://s4.postimg.org/s3pel2ekd/this_guy.png and that solved the day!!
With p900 work perfect, but install hard. With this twrp 3.1 i install lineage 14.1, all works good.

can't change to magisk instead of superSU on samsung j111f

I have a samsung j111f rooted with a twrp recovery via flashing superSU zip but when i wanted to change to magisk i couldn't uninstall superSU via full unroot , I managed to do that many times before and rooted it again via twrp, but the problem now is that when i try to do a full unroot it asks me to revert to stock boot image i hit yes then it asks to revert to stock recovery so i hit no because i need it to flash magisk so it fails to full unroot, but when i hit no at recovering boot image it bypass but magisk dont want to flash because i have a modified boot partition; So please would you help me ?
PS : I have an unlocked bootloader witch i got since my first rooting following this : https://forum.xda-developers.com/android/development/root-samsung-galaxy-j1-ace-sm-j111m-f-t3395520
Also i have installed twrp recovery via odin on that unlocked bootloader because it always boot to stock recovery when i try to flash it on stock firmware
Never mind i found the sollution just full unroot without fixing bootloader from supperSU ,booted into twrp recovery flashed stock boot.img then magisk.zip and rebooted that's it got evrything worked
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