Bootloop after root - Galaxy S6 Q&A, Help & Troubleshooting

As topic says, I ****ed up the root and now im in a bootloop, I can get into the download screen, however.. I cannot get into the recovery screen where you can reset the phone.. I've tried 4 different firmwares and none of them works with odin. I live in Sweden and has Telia as a carrier if it matters. Please help me. I'm kind of panicing right now since this phone cost me over $1000
I have the "SM-G920F" And was using Android 5.1.1 Lollipop.

Don't flash a ROM using Odin, use TWRP.
Get the latest version, enter download mode and flash TWRP.
Reboot into recovery, do a factory reset and flash the ROM via TWRP.
Don't let the device do the first reboot itself, force it yourself immediately after successfully flashing TWRP (see info on above linked page also).
Good luck to you, don't worry, i had the same prob a few days ago; your phone's not bricked.

I had the same problem few days ago.
Just flash TWRP and go to recovery mode and flash custom ROM via TWRP if you still want it.

Related

Galaxy S6 Unable to boot into TWRP recovery

..
you asked the same question I was going to ask....hopefully someone replies to you, I'll keep asking around the interwebs for a solution I already asked Max Lee and still no reply. I'm rooted too (cf auto root) but i want twrp just in case.
I'm trying for 2 days for my 920i and I ha e twrp now I flashed 920f and boot fine!
https://www.fshare.vn/file/B38M8WL1ZQDE
merrykid said:
I'm using G920I Australia version.
I can successfully root using CF-Auto-Root.
But I can not get into TWRP recovery after I flashed that (tried both versions of the recovery) using odin. It stops at the first screen (samsung logo). I tried using adb commond reboot recovery and the hardware key (volum up+power+home), both of them do not let me in to the custom recovery.
I had tried enabled knox before flash TWRP, which made it into boot loop. And then recoveried using the official firmware. Now I can only get into the official recovery.
Any suggestions for how to get into the TWRP?
BTW, how to backup the pit file using adb? On previous models it was mmcblk0, but Galaxy S6 seems to have changed the memory map to sda1, sda2, etc.
Click to expand...
Click to collapse
I got the 920i Aus version too. I was told two different things.
Update firmware to AOD1 and flash TWRP and it should work.
-or-
Use the 920t as jah2110 says. I would find the file from somewhere more 'reputable'.
Downloading a AOD1 firmware now from sammobile which is awful slow. First one I tried to flash gave me fail in odin so im trying a different one.
Stuck at the Samsung logo after trying to flash the recovery via twrp app, now it doesn't even boot normally. so if you want to install twrp don't use the app, G920I telstra version
Just flash an AOD1 firmware or more. The new zealand firmware for instance and then twrp is gonna work.
If you are stuck after flashing twrp on the australian firmware just flash root using odin and you will be able to start your device again
massacreur75010 said:
Just flash an AOD1 firmware or more. The new zealand firmware for instance and then twrp is gonna work.
If you are stuck after flashing twrp on the australian firmware just flash root using odin and you will be able to start your device again
Click to expand...
Click to collapse
really? i didn't know that, anyway, if you want to update/reinstall the stock firmware, sammobile is so bloody slow, i deem it unusable, so i found this gem, much faster than sammobile, i downloaded at 1.3MB/s so it takes just over 20 minutes for the whole firmware. http://galaxys6root.highonandroid.com/galaxy-s6-stock-firmware/ give it a try if sammobile just pisses you off.
Yes it took me a few days to figure it out and everyone kept saying that twrp should work ...but thats just a matter of firmware version.
So is there a fix? I can get root but TWRP just sites and the boot screen.
I've been in the same situation using a Aussie Voda 920i, I was able to root using CF auto root but then had deep sleep issue & couldn't install TWRP. Now i've installed the singapore firmware & also got TWRP running but cant root.
If I use ODIN to root its gets stuck on logo screen & If I use TWRP it appears to go OK but just doesn't work. Also although CPU Spy says I am getting deep sleep battery life seems awfull
Twrp gave me the boot screen for infinite as well. I live in Alaska. I had to reflash root file to boot. Never got twrp to work. I tried to flash via app. I don't even want more possible headache flashing it with Odin.
Surely if you've got root you can install twrp from the app store and let it replace the recovery.
Same issue
I had exactly the same issue, flashed TWRP from a reliable source and my phone bricked at start up logo screen, could only get into download mode, once i did that i reflashed with ODIN and autoroot file and phone came back alive. Thank god.
---------- Post added at 10:47 PM ---------- Previous post was at 10:43 PM ----------
Tried to install TWRP from official APP, said it installed recovery successfully would you like to attempt reboot and get into recovery, got stuck again at boot screen LOLLLL awesome...... piece of ****ware.
Same for me G920F. I tried twice both failed.
First time use this thread The phone was successfully rooteded. I installed "TWRP Manager.apk". It cause phone infinitely reboot.
Then I restore the stock ROM (you won't know how painful to download the 1.5G+ ROM).
Second time, I rooted again. And tried use freshily (?) to manually install an img in sdcard. It said success and reboot. But it stayed in boot logo.
I restore the stock ROM again (but the kies3 needs to download ROM again!).
I will not try a third time unless there is an right answer.
__________________
btw, the first one say 'oem unlock' must be checked. But I do not have this option, maybe because my phone is unlocked already (not binded to any one).
GrandMstrBud said:
So is there a fix? I can get root but TWRP just sites and the boot screen.
Click to expand...
Click to collapse
im a Noob but i was told that my TWRP was being overwritten during the reboot and that i Must flash a custom kernal after rooting so that the TWRP wouldn't be overwritten
SillyTAO said:
im a Noob but i was told that my TWRP was being overwritten during the reboot
Click to expand...
Click to collapse
This only happens when you fail to force the reboot into recovery yourself.
If you let the phone reboot automatically after flashing, it will be stuck @ bootloop; so you have to be faster & hold the vol up+home+power buttons *immediately* when Odin finishes the process.
Don't bother removing the cable or waiting for the screen to change, that will be too slow.
Cant boot in twrp after flashing thru odin
knox counter trips

Device won't boot, tried rayglobe, tried fastboot flash, no firmware downloads availa

I have an NXT-L29 (432). I've really loved this phone besides the headaches of modding. I've been doing this for years, am well acquainted with fastboot and ADB. I promised I've searched and read as much as I can, I keep getting dead ends.
I'll try to recount what I've done but I've tried so many things I'm probably a bit mixed up. Was using b180 and and Ephemeral Rom for months, decided to go to b321 for black pyramid. Trouble began. Tried dload method (button method wouldn't work,used dialer), it rebooted back to the custom rom. Went to recovery, still TWRP. Wiped, it booted into stock EMUI. Was still rooted, with kangtools somehow. Tried using supersu unroot, failed. Flashed stock recovery from bootloader hoping to update to nougat (gave up on b321), since then it won't boot and I can only get into bootloader and eRecovery. Tried downloading latest version and recovery, getting package fails. Tried reflashing TWRP in bootloader, shows success but brings me back to Erecovery. Tried rayglobe knife unbrick with extracted images from what I believe is my stock firmware. It completes, I press any key to reboot and get stuck on the 'your device is unlocked and can't be trusted' screen. I let it sit there overnight. Tried relocking bootloader but it can't because of root type. Tried manually flashing cust, boot, system, recovery, which is successful, yet I still get stuck at the 'your device has been unlocked and can't be trusted'. Tried using HRK tool but ADB isn't authorized? USB debugging was allowed before I got locked out. I'm stuck, don't know what else to do. I've thought to download another stock firmware but none of the links in the stock thread work anymore. Any help would be greatly appreciated.
One thing that is really racking my brain, why does Erecovery remain after fastboot flashing twrp?
Somehow got back into twrp, flashed 7.0 files and now running nougat. Cannot get back to twrp for the life of me and it doesn't always boot but it's progress. This phone is crazy.
Hello.
I unbricked my phone few. Weeks ago. Now it's fully fonctionnal. But I still can't boot to TWRP. The only manner I found, it's using srktool to reboot in TWRP... The official manner start erecovery too.
hi friend,have you problem....
help meeeee.
have flash a lot rom with fastboot unbrick
but no star sistem
have rom 192 emiui 4

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.

Wierd Bootloop-Problem when flashing TWRP

Hey Guys,
so i got a wierd bootloop problem and for now i didn't find any solution here on xda or somewhere else,
not even a thread where someone has the same problem.
I'll try to give you as much information as possible in a chronological order.
First of all I got the international model (G920F).
So like 2-3 months ago everything was fine, my phone was rooted, got TWRP working and was flashing Roms with no problem what so ever. TW-Roms like Noble Rom and also AOSP/Lineage OS.
One day I wanted to flash UltImAtE NoUgAt A8 Port and that is where the trouble began, dont think it has something to do with the rom but maybe it helps.
So i flashed the Rom(wiped everything except int. storage), flashing was no problem but it didnt boot.
I know first boot always takes some time but after about 20-30 min I forced a reboot (Power+Vol. Down for 7sec).
After that the phone got into a Bootloop(always rebooted into the "first bootingscreen")
I let this process happen for about 15 min. and then tried to enter TWRP via hitting the buttons between the boots which didn't work. I then did "force" a reboot(Power + Vol. Down) which strangely resulted in one final reboot and turning the phone off after the first bootscreen.
So with the phone finally turned off I was able to boot into TWRP and reflashed the rom but the result was the same.
I did the same procedure again to get into TWRP and flashed the Stock Deodexed TW Rom, flashing worked but then the Phone directly rebooted into TWRP. Rebooting out of TWRP or booting the phone from beeing shut down both resulting into booting to TWRP.
So to get my Phone working again I had to flash stock ROM which in my case is G920FXXU5EQDF_G920FDBT5EQD1_G920FXXU5EQCD via Odin.
That worked but of course root and TWRP were gone so I then flashed TWRP via Odin(both newest Versions at that point)
aaaaaand phone straightly booted into TWRP again all the time. I tried different combinations of older versions of both twrp and odin but the result always was the same.
So at the moment I am on Stock, the phone works which is nice but i really wanna get TWRP working again and i have no idea what to do.
I hope someone can help me with that.
Cheers Guys
MuTec said:
Hey Guys,
so i got a wierd bootloop problem and for now i didn't find any solution here on xda or somewhere else,
not even a thread where someone has the same problem.
I'll try to give you as much information as possible in a chronological order.
First of all I got the international model (G920F).
So like 2-3 months ago everything was fine, my phone was rooted, got TWRP working and was flashing Roms with no problem what so ever. TW-Roms like Noble Rom and also AOSP/Lineage OS.
One day I wanted to flash UltImAtE NoUgAt A8 Port and that is where the trouble began, dont think it has something to do with the rom but maybe it helps.
So i flashed the Rom(wiped everything except int. storage), flashing was no problem but it didnt boot.
I know first boot always takes some time but after about 20-30 min I forced a reboot (Power+Vol. Down for 7sec).
After that the phone got into a Bootloop(always rebooted into the "first bootingscreen")
I let this process happen for about 15 min. and then tried to enter TWRP via hitting the buttons between the boots which didn't work. I then did "force" a reboot(Power + Vol. Down) which strangely resulted in one final reboot and turning the phone off after the first bootscreen.
So with the phone finally turned off I was able to boot into TWRP and reflashed the rom but the result was the same.
I did the same procedure again to get into TWRP and flashed the Stock Deodexed TW Rom, flashing worked but then the Phone directly rebooted into TWRP. Rebooting out of TWRP or booting the phone from beeing shut down both resulting into booting to TWRP.
So to get my Phone working again I had to flash stock ROM which in my case is G920FXXU5EQDF_G920FDBT5EQD1_G920FXXU5EQCD via Odin.
That worked but of course root and TWRP were gone so I then flashed TWRP via Odin(both newest Versions at that point)
aaaaaand phone straightly booted into TWRP again all the time. I tried different combinations of older versions of both twrp and odin but the result always was the same.
So at the moment I am on Stock, the phone works which is nice but i really wanna get TWRP working again and i have no idea what to do.
I hope someone can help me with that.
Cheers Guys
Click to expand...
Click to collapse
You do know that if you flash TWRP, you need to use a kernel that has dm-verity disabled or you need to be rooted. Flash TWRP then Flash Magisk through TWRP
U99Dev said:
You do know that if you flash TWRP, you need to use a kernel that has dm-verity disabled or you need to be rooted. Flash TWRP then Flash Magisk through TWRP
Click to expand...
Click to collapse
As it seems I did not, good thing that its written right at the TWRP download page...
Can't remember doing this when I installed TWRP first but as it seems I did.
Everything is working fine, just flashed Nexus OS and it booted.
Thank you so much dude

GalaxyS8+ SM-G955F: BRICK (Only official released binaries are allowed to be flashed)

My device has been bricked after attempting to root the device using Odin. (Samsung Galaxy S8+)
The device is stuck in a bootloop with the following accompanying error message in red on the boot screen:
"Only official released binaries are allowed to be flashed"
Here is what happened:
I flashed TWRP using Prince Comsy Odin. (The only Odin that actually works on the s8+)
I then booted into the TWRP recovery.
I followed a set of instructions, clearing the Cash and wiping
I restarted once then booted back into TWRP using Vol-Up + Power + Bixby
I was preparing to install Magisk & "no-verity-opt-encrypt-5.1" according to instructions to complete the root.
After installing "no-verity-opt-encrypt-5.1" with TWRP, the system rebooted and i was stuck in a boot loop.
I then got the error message in the bootloop "Only official released binaries are allowed to be flashed"
Since then i have not been able to successfully re-flash TWRP.
I now cant enter TWRP recovery boot using Vol-Up + Power + Bixby anymore
The bootloop is about 2 seconds long and too short to enter TWRP recovery
I can enter download mode and thats all
I have gotten the EXACT official stock ROM for the galaxy s8+ in South Africa with the carrier, Vodacom. (XFV-G955FXXU4CRL4-20181228165540)
If i flash with any official Odin version, it either fails or doesnt do anything for hours...
If i flash any Official stock Rom using Prince Comsy Odin then i do get the whole process of flashing with stock firmware being successful with the result saying "PASS".
The phone then reboots and i am still stuck in the same loop saying "Only official released binaries are allowed to be flashed"
This is after countless times and hours and hours of reflashing successfully with Official stock rom
I still cant get back into TWRP to do any partitioning or formatting or anything
I really don't mind if i lose all of my data and format the phone but PLEASE can you help me get my phone to work again..."?
Do i need to wait 7 days for the official flash to work?
Is there a way to completely wipe my phone without requiring going into Recovery mode with TWRP? Since i cant get into that state anymore either because of the Error Knox block or because of the Loop being too fast.
Please, please, PLEASE....please help me get my phone to work again...
Sincerely,
I know that Odin 3.13.1 works on the s8+ G955F as I flashed the latest BTU stock yesterday so try that version. I had a similar problem with the G950F and after flashing the files I booted into recovery mode and did a data and cache wipe and the phone rebooted. Flashing a stock rom should have wiped TWRP from the phone.
Reflash your rom or a later one, don't forget to take the tick out of the auto reboot box in Odin, boot to recovery and wipe everything and hopefully you will be good to go. Rebooting on mine took around 35 mins or so when going back to stock.
GalaxyS8+ SM-G955F: BRICK (Only official released binaries are allowed to be flashed
I have the same problem with the model G955F binaries 4 I can not always rooted
le_pentium said:
I have the same problem with the model G955F binaries 4 I can not always rooted
Click to expand...
Click to collapse
same for me !someone asked me to delete the RMM to resolve the problem
le_pentium said:
I have the same problem with the model G955F binaries 4 I can not always rooted
Click to expand...
Click to collapse
My problem is fix

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