S8 G950F - stuck on verification following unroot. - Samsung Galaxy S8 Questions and Answers

hi
ive got a s8, which was rooted using magisk, but was having issue, so was advised to unroot, remote and try superSU instead.
in the process of flashing stock rom AND 8.0, the phone now boots up to black screen showing verification failed, only option to reset.
when i press reset, all it does is restarts, loads up TWRP which had been installed before,
TWRP runs some program and fails and then phone goes back to black screen showing verification failed.
ive booted it into download mode, in the hope that i can just start again by simply lashing fresh stock rom, but it connects to odin fine, but when i click start, it gives a red error every time.
so i cant access the standard recovery menu as ive got TWRP so that loads instead and it looks as that is corrupted and i cant flash new fresh rom from download as odin brings up issue
ive check another phone and there is no issue with odin or the usb-c cable,
there is an issue with the s8 and odin does not like something in the s8 so wont let me flash anything to it,
any advice would be greatly appreicated.

When you flashed the stock rom using odin did you flash a bootloader aswell as the rom or did you just flash the rom the problem might be that the bootloader was for pie and the rom is oreo or vice versa whenever I flash back to stock I fill all but one of the boxes in odin

i suspect it was all oreo, as i downloaded as a complete file but ill check and get back to you
thanks for advice.

Related

N9005 stuck in recovery mode

To cut a long story short I was on a S6 port rom and decided to try N5 port. After sometime i did not think it can be my daily driver so decided to go back to my backup. Restored my backup but my screen was always unresponsive, tried many timed but did not work.
So i decided to flash Phronesis rom, but for some reason the phone shuts down everytime i tried to clean the data, or install the new rom. I will have to take out battery again to get back to recovery. Tried multiple times but failed.
Decided to download a stock rom and flash via odin, got BRI-N9005ZSUGOH3-20150904105400 from some thread in google as stock rom and downloaded odin v3.9 and flashed with Md5 in AP. Got the error Volume size is too big 614400<712704.
I remember when i moved from kitkat we had to do something with the pit size but since i was already on lollipop didnt think it was relevant.
Can someone pls advise, what I am doing wrong.
Just to try out i am also downloading the firmware from sammobile to see if there was something wrong in the previous file.
To provide an update, I flashed the stock firmware from sammobile using odin and it passes, however i was stuck at the boot screen for about 20mins after which I gave up. Now flashing stock again using odin and see how it goes this time.
Last update
when the phone did not start up after the next stock flash as well. I went ahead and flashed twrp recovery and was able to boot into recovery after couple of tries then flashed a custom rom again. alls good now.
When flashing back to stock, a full wipe using stock recovery is sometimes required before booting the stock ROM for the first time.

safestrap....unable to mount /system...potential brick??

have rooted s5 on 4.4.4 nk2. Have been trying to install custom roms via safestrap. Apparently i am missing a step. I wipe data, try to install twi5ted Lollipop on custom rom slot....blank screen for over 30 min after reboot, phone gets real hot, take battery out. Try to install on stock rom slot, reboot then get stuck in boot loop and keeps booting into system recovery. I then saw through my hours of searching to format instead of wipe....so i format then try to install, get stuck again, take battery out, get back to safestrap dash now when i try to wipe/format/or even restore my backup it says unable to mount system. When i click reboot system it says no OS installed. After reboot, my custom slot gets erased.
I was about to try an odin flash back to stock but some how was able to get my phone back to a system restore. Why can i not get anything installed? Do i have to have odin to do a custom rom install?????? i know every rom is different but wtf. I have seen multiple videos and threads of people flashing zip via safestrap and rebooting into new rom without flashing kernals via odin or safestrap after rom install.
Also...my phone will not let me download zip files (ex. cm12.1) says unable to create download folder....how close to F'in my phone up am i? I have successfully rooted all phones in the past...s5 is giving me hell!
I just tried installing rom after format, then flash nk2 kernel from odin, still gives boot loop....ive tried everything i have found..never this much problem with custom rom..
When you try to install twisted it needs lollipop firmware which is flashed on odin, and based on your statement it says you're on NK2, a kitkat firmware. Try flashing a stock ncg tar and rerouting, downloading apps, etc. on the phone to see if that works. Also, I noticed you mentioned a cm 12.1 zip not downloading which, while unrelated to your current problem, will cause a bootloop when flashed due to the locked bootloader on the S5, so it isn't a smart idea to even attempt an install.
mrjiggywiggy said:
When you try to install twisted it needs lollipop firmware which is flashed on odin, and based on your statement it says you're on NK2, a kitkat firmware. Try flashing a stock ncg tar and rerouting, downloading apps, etc. on the phone to see if that works. Also, I noticed you mentioned a cm 12.1 zip not downloading which, while unrelated to your current problem, will cause a bootloop when flashed due to the locked bootloader on the S5, so it isn't a smart idea to even attempt an install.
Click to expand...
Click to collapse
thanks, i will try fresh from start ncg. so you have to be on the current kernel that you are flashing a rom for, whether its CM, Twi5ted, Alliance...etc i need to be on rooted 5.0 kernel then flash rom via safestrap?
i was having problems downloading from internet on phone, not downloading rom if thats what you thought i meant. I just tried installing zip for CM 12 via safestrap and got same issue. Phone reboots, goes to black screen and eventually heats up like crazy. .... I just noticed, after my restore ...again... it says safestrap disabled in red on the boot screen, why is that? it says installed and tried reinstalling.
FIXED
So i flashed ncg from odin on the messed up phone and got messed up worse. Ended up getting stuck on first boot image of samsung android s5 boot screen. Finally found original stock firmare file and used odin to complete install stock os and got rid of root. Now back to normal... luckily i figured it out my self! thanks to the 100's who viewed and didnt help and thanks to mrjiggywiggy for giving me some input to help out!

Galaxy S4 (GT-i9500) Major problem

Hello everyone. I used Albe95 N5+S6 Port rom for my GT-i9500 and it worked flawlessly. I had TWRP recovery. After a lot of using I thought to re-flash the rom and start using it new, so I reinstalled the Rom file on my external SD card and flashed the rom using TWRP recovery and it was a success, but then I noticed I accidentally backed up some things which I didn't wanted to I re-flashed the Rom again, but this time when I (in recovery mode) wiped the data, I chose "Advanced Wipe" or "Advanced Reset" (It was something like that I don't exactly remember. So after that I reflashed the rom and when I had to press "Reboot" a message appeared above saying "Looks like super user is not installed in your phone. Do you wish to install it?" I said Yes and the screen went blank. I tried to reboot but It didn't. I removed the battery and then put it back again and tried to get into recovvery but recovery seemed to be lost and I ended up in Samsung's own factory mode where we have options like reboot, flash using external sd card, flash using adb, enable cp logging and etc. I tried to flash back everything but nothing works. Tried Odin and tried flashing custom firmware but it fails. If I reboot Samsung Galaxy S4 GT-i9500 comes on screen and then it goes blank no boot animation or anything like that. Please help me, Your help will be highly appreciated
I used advanced wipe many times before, I'm pretty sure something else caused your dilema.
And most Odin fail messages are caused by the USB cable, PC USB ports (back ports are recommended) and Windows version.
So what should I do now?
If the problems are caused by the above mentioned, you should obviously try to change things up.
It appears that your phone is in soft-brick.
Also, you lost your TWRP.
Check your bootloader version and install the stock firmware via odin. (If you still fail in odin, As GDreaper pointed out, odin fail could cause by usb cable, port and windows version so you need to keep changing until it works)
Root the phone. Reinstall the TWRP.
Then flash the custom rom again. When you install the custom rom please follow the cooker (custom rom maker) instructions on wiping.
Thanks for your comment. I'm kind of a noob, how do I check bootloader version? and how will I know after checking my bootloader version which stock firmware to install?
Bootloader has nothing to do with it.
If you flash a stock firmware, the Bootloader will also be updated to whatever Bootloader the download firmware has.
The only situation where the Bootloader would matter is if you try to go from lollipop to kitkat, in which case it will fail.
Thank you. My device is back now.
I am glad to hear that your problem is solved.
When I was on kit-kat, I did not check my bootloader version and flash the stock firmware with older version of bootloader which tripped the knox counter on my i 9500. That was why I said to check the bootloader version before installing the stock firmware. You can use app like phone info to see the bootloader info. Then install the firmware with the same or newer bootloader.
I recomend to Update drivers, Windows, Bootloader install Samsung Kies and Install TWRP again, After stock

Might have Bricked S7 Edge SM-935FD. Need Help to recover

Hello guys
My phone is Galaxy S7 Edge Duos- SM935FD. I seem to have bricked the device.
Below are the actions I have performed.
1. Flashed TWRP using ODIN as described on https://www.the***********.com/root-samsung-galaxy-s7-edge/
2. Booted successfully into the OS. Found superuser app installed.
3. When I went to back to Flash ROM i erased multiple things such as internal storage/dalvik/cache/system after which device got stuck in bootloop. Showing NO OS.
4. I tried flasing Custom ROM Zip files through OTG. The process failed showing package corrupt and still stuck in bootloop.
I can enter recovery/download mode however cant seem to get the device booted. How can I get the device to work either Custom or stock ROM.
I will be going through some threads in the meantime, your guidance is very much appreciated.
Flash stock rom with Odin: This shouldnt be posted on Development Forum but rayher questions and Answers.
Find what your Stock Firmware for your phone is using Sammobile and flash stock then re do rooting and TWRP Process
zzThrain is right -- I wouldn't risk flashing custom ROMs at this stage, especially because many contain new bootloaders or other stuff that might make this even worse for you. Just pick up the relevant Samsung stock ROM file (from, for example, SamMobile) and see if it boots normally again. Once it does, re-do the process *after checking all MD5s of the files you used* -- I, too, have had it happen before that a download went corrupted and I flashed it. If all is well, get into Download Mode and let Odin rip.
rixon.d9 said:
Hello guys
My phone is Galaxy S7 Edge Duos- SM935FD. I seem to have bricked the device.
Below are the actions I have performed.
1. Flashed TWRP using ODIN as described on https://www.the***********.com/root-samsung-galaxy-s7-edge/
2. Booted successfully into the OS. Found superuser app installed.
3. When I went to back to Flash ROM i erased multiple things such as internal storage/dalvik/cache/system after which device got stuck in bootloop. Showing NO OS.
4. I tried flasing Custom ROM Zip files through OTG. The process failed showing package corrupt and still stuck in bootloop.
I can enter recovery/download mode however cant seem to get the device booted. How can I get the device to work either Custom or stock ROM.
I will be going through some threads in the meantime, your guidance is very much appreciated.
Click to expand...
Click to collapse
Go to recovery mode & transfer rom to phone using pc. wipe cache, delvikcache, data only. No need to wipe internal sd. Install rom & reboot.
if you phone goes to recovery or download mode, no need to worry. If it doesn't go to neither recovery nor download mode, them your phone might have probably bricked.
It's my pleasure to help you if you still facing this problem
zzThrain said:
Flash stock rom with Odin: This shouldnt be posted on Development Forum but rayher questions and Answers.
Find what your Stock Firmware for your phone is using Sammobile and flash stock then re do rooting and TWRP Process
Click to expand...
Click to collapse
Hi
I tried flashing stock rom from sammobile. I could find for SM-935FD hence downloaded SM-935F.
It got stuck at 90% showing System in ODIN.
From the ZIP file which is the file that needs to be flashed among below ? I tried AP.
AP_G935FXXU2DRB6_CL12365438_QB16944063_REV00_user_low_ship_meta.tar
BL_G935FXXU2DRB6_CL12365438_QB16944063_REV00_user_low_ship.tar
CP_G935FXXU2DRAG_CL648265_QB8691891_SIGNED.tar
CSC_OJV_G935FOJV2DRAG_CL12785220_QB16560277_REV00_user_low_ship.tar
HOME_CSC_OJV_G935FOJV2DRAG_CL12785220_QB16560277_REV00_user_low_ship.tar
Now when I try again it immediately shows FAIL. Am i Flashing the right stock rom ?
It Worked. Thanks to all who helped.
I wasn't running ODIN as Admin and also was using an slightly older version V3.10.7.

[sm j730f] Bootloader fail and TWRP boots into black screen

Greetings everyone,
I decided to post my problem with my phone after searching the entire internet for similar problem but with no luck. Anyway I used to play around with my Samsung j7 pro for 2 years, I managed to flash twrp and thus many other custom roms, until last week when I recklessly flashed a sboot.img.tar file through Odin in order to fix cellular network in a rom I flashed earlier, this alone bricked my phone refusing to get past the Samsung logo, so like I do always, I tried to restore my phone by flashing the stock firmware (9.0) which I always keep on my PC, but surprise, the phone refuses to go through the process and gives me this error:
sw rev check fail bootloader device -1 binary 6
(same with 8.0 and 7.0 firmware)
I searched the internet for same error but with no luck, because I understand it's a mismatch between device bootloader current version and the firmware bootloader's, that they should be the same or higher, meaning you can't downgrade, I get that! but I never seen device with negative figure (-1) what that's supposed to mean? my device bootloader used to be on 6, how did it managed to jump to minus one ?
then I tried to flash TWRP to see if I could flash a rom and get around it, so I did, but when booting into recovery the screen goes black, I thought first the phone turned off, but not really, because TWRP seems to work with screen completely black, I knew that because I accidentally touch the screen and I sense vibration, I managed to reboot the phone via twrp just by guessing the buttons location (screen always black) in order to prove that TWRP is working with screen off. I tried to flash multiple TWRP versions but the same problem, no screen just touch, by the way there is nothing wrong with display hardware because it shows Samsung logo at start and also can boot into download mode just fine.
I hope someone could help me overcome this big of an issue, because I tried everything.
Where did you find such sboot.img.tar file?
death.by.confusion said:
Where did you find such sboot.img.tar file?
Click to expand...
Click to collapse
Here
https://forum.xda-developers.com/ga...ow-to-fix-sim-cards-didnt-read-j730f-t3939685
Michelyn50 said:
Here
https://forum.xda-developers.com/ga...ow-to-fix-sim-cards-didnt-read-j730f-t3939685
Click to expand...
Click to collapse
First, can you try installing any custom rom, blindly(since you said the screen is black when you boot in recovery).
Second, can you try flashing stock firmware without the BL part in Odin?
death.by.confusion said:
First, can you try installing any custom rom, blindly(since you said the screen is black when you boot in recovery).
Second, can you try flashing stock firmware without the BL part in Odin?
Click to expand...
Click to collapse
I tried blindly many times flashing any custom rom but with no luck since it's really hard predicting the buttons location on the screen, I probably need another phone replica with working twrp to mimick the exact moves.
For stock firmware, I manage to install it without BL but when booting it's just stuck on the Samsung logo, and when booting into stock recovery nothing just black screen, and booting into download mode it seems that the installation didn't change the binary -1, since I could see it on the screen
death.by.confusion said:
First, can you try installing any custom rom, blindly(since you said the screen is black when you boot in recovery).
Second, can you try flashing stock firmware without the BL part in Odin?
Click to expand...
Click to collapse
This is a screenshot when I try to install stock firmware (with BL)
https://m.imgur.com/a/9vuFqTX
Can you try flash other sboot files from the link you gave me? Try to flash some sboot file, and then make full flash of your stock firmware.
If not, maybe you can try flashing sboot with heimdal https://www.glassechidna.com.au/heimdall/
I have the same issue, any help or advice?
Flash Ășltimo bootloader e modem CP
Flash Any Custom ROM
Did you flash misc partition ?
If your device keep booting in blackscreen, you need to erase misc partition.
Here, is the guide for erasing MISC partition: https://forum.xda-developers.com/t/...omi-redmi-note-9-xiaomi-redmi-10x-4g.4209299/
The guide is for REDMI NOTE 9, so if you try to perform the method 1, you can cause more damages to your device.
Please, follow METHOD 2 only !
If TWRP is not working perfectly, obviously you need to flash stock rom recovery.img.
Good luck

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