There are several conflicting threads and I hope I can get some definitive answers here regarding my Samsung Galaxy S2x (SGH-T989D), which unfortunately has to go back to Telus.
Phone is rooted, otherwise stock everything. Unless rooting alter the stock rom somehow.
Rooting was done through Odin using "recovery-cmw-hercules.tar" and "CWM-SuperSU-v0.87.zip".
Questions:
What is the quickest way to revert to stock, unroot, reverse-rooting?
Will a factory reset get rid of my root? Can I just delete the superuser files from the system directory?
Do I need to flash a stock Telus rom from here:
http://forum.xda-developers.com/showthread.php?t=1350357
"Custom binary" counter says "NO" and current binary is "Samsung Official", I assume it means I do not need to reset the flash counter
Thank you very much in advance.
Hello Everyone,
before all, sorry for my english.
I'm new and noob in Samsung-World.
I just bought the Edge, flashed recovery and rooted.
If I want to go back to full stock, I need just to flash with Odin?
Tysm
Aleck
alecksander said:
Hello Everyone,
before all, sorry for my english.
I'm new and noob in Samsung-World.
I just bought the Edge, flashed recovery and rooted.
If I want to go back to full stock, I need just to flash with Odin?
Tysm
Aleck
Click to expand...
Click to collapse
There are other methods, but this is easiest way.
Knox counter efuse will still be tripped 0x1 though.
Just download your original firmware from sammobile and flash it with odin...make sure you got the right model for your phone...like g...s...etc..
Sent from my SM-N915G
why you want to unroot it ,Knox counter tripped already to 0x1 so if you flash the original rom you will lose the root and they will know it's rooted before
Bofahad said:
why you want to unroot it ,Knox counter tripped already to 0x1 so if you flash the original rom you will lose the root and they will know it's rooted before
Click to expand...
Click to collapse
i want to start from scratch with a bone stock phone. i will be rooting again but i want to do it all myself. i got the phone already rooted and not sure exactly what the previous owner has flashed as far as kernals or firmwares or what. it seems to be running stock rom but i just want to start all over with it
i looked at the sammobile page and there are two firmwares one with a region xas and one with a region spr. i don't know what the difference is and don't want to flash the wrong thing. last time i tried to download from sammobile website for my note 4 as a free user it was a super super slow download
Hi,
I've one (big) problem that I can't fix.
I've been using Android 5.0.1 for more than 1 year as I didn't want to upgrade (it worked pretty well) and because I had the S6 rooted with PingPong root.
However, one month ago it started to run slowly, crashing apps, ... so I decided that, as I wanted to wipe the device, why not upgrade to MM (6.0.1)??, so I did.
I did a backup of all my data and EFS folder and downloaded a 6.0.1 ROM to flash it with ODIN. Everything went OK and finished flashing the rom, but when the S6 restarted it showed this in the recovery:
'dm-verity verificztion failed...
Need to check DRK first...'
And I cant boot.
I've tried some tips that are here and in other websites:
- I've flashed stock rom again
- I've flashed a stock rom without cache.img file.
- I Can't flash some files as I've R/L ON. (I've been trying to disable it for many months but I couldn't).
But the S6 doesn't boot...
Thank you!
What worked for me.
So this is my current issue, but i was able to resolve the issue you are having. so what i did was get the 5.1X OK7 (My phone is Verizon) firmware and flashed through ODIN 3.12.5, this flashed stock 5.1.1 in my phone and it worked good. however i have issue with my phone random restarts and power button not working in recovery or in rom. however i can go in and out of downloading mode or maintenance mode.
Critical_DoubleShot said:
So this is my current issue, but i was able to resolve the issue you are having. so what i did was get the 5.1X OK7 (My phone is Verizon) firmware and flashed through ODIN 3.12.5, this flashed stock 5.1.1 in my phone and it worked good. however i have issue with my phone random restarts and power button not working in recovery or in rom. however i can go in and out of downloading mode or maintenance mode.
Click to expand...
Click to collapse
Thanks for your reply!
I tried to downgrade to 5.1.1 or 5.0.1 but I get an error.
(SW REV CHECK FAIL DEVICE 2 BINARY 1)
That happens when you don't have the right firmware you have.
You CANNOT downgrade to 5.1 or 5.0 since you are on 6.0. The bootloaders refuses to be overwritten.
Critical_DoubleShot said:
That happens when you don't have the right firmware you have.
Click to expand...
Click to collapse
I'm trying to flash another 6.0.1 ROM (a bit older), but I get 'CHECK FAIL. DEVICE: 4, BINARY:3'
I've read that DRK problems are related with EFS files, so... Can I restore EFS folder (I've a backup from Android 5.0.1) to solve?? I don't know how to restore it without booting into the sistem (and without custom recovery)
I am afraid that downgrade to 5.0.1 is not possible, at least I dont know anyone who succedeed in doing that.
If you were on systemless root, probably your Knox is still 0, check it in DL mode, if it is and you have the phone less that 3 yrs (1 yr warranty+2yrs factory warranty) best solution would be to ask in Samsung repair center if the factory warranty would be accepted (ofcourse dont mention flashing, just say you tried official update, and play dumb).
If not you can try custom kernel wich will bypass DRK, and prolly make the phone bootable, but there is no guarantee everything will work well (maybe it will, but mostly it doesnt, forget using Samsung pay, and KNOX tripped)
As for EFS, maybe I am wrong, but I think EFS contains IMEI and sn info, and DRK is something else.
brenner650 said:
I am afraid that downgrade to 5.0.1 is not possible, at least I dont know anyone who succedeed in doing that.
If you were on systemless root, probably your Knox is still 0, check it in DL mode, if it is and you have the phone less that 3 yrs (1 yr warranty+2yrs factory warranty) best solution would be to ask in Samsung repair center if the factory warranty would be accepted (ofcourse dont mention flashing, just say you tried official update, and play dumb).
If not you can try custom kernel wich will bypass DRK, and prolly make the phone bootable, but there is no guarantee everything will work well (maybe it will, but mostly it doesnt, forget using Samsung pay, and KNOX tripped)
As for EFS, maybe I am wrong, but I think EFS contains IMEI and sn info, and DRK is something else.
Click to expand...
Click to collapse
Thank you for your reply!!
I had the device rooted, but with PingPong root, so Knox is still 0. However it shows that the system is "custom".
I'll try the warranty, they may not notice the "custom", just the knox.
I'm with the same problem when trying to flash stock BTU QA7..and only if i flashing cf_root my phone is booting.
Any idea? I don't care about the Knox..
Sent from my SM-G920F using Tapatalk
orbgel10 said:
I'm with the same problem when trying to flash stock BTU QA7..and only if i flashing cf_root my phone is booting.
Any idea? I don't care about the Knox..
Sent from my SM-G920F using Tapatalk
Click to expand...
Click to collapse
If you are talking about DRK, the only way to fix it that I know of, other than hw replacement, is via 3rd party professional repair tool. (Octopus/Octoplus box)
If DRK is ok, phone boots normaly, if it is messed up, the only way of booting is with custom kernel which bypass DRK check.
You can check it in recovery, if messed up it will say DM verity failed on bottom of the screen.
Ok, i send my phone to fix, i will tell you what happened.
Sent from my Redmi 3S using Tapatalk
brenner650 said:
I am afraid that downgrade to 5.0.1 is not possible, at least I dont know anyone who succedeed in doing that.
If you were on systemless root, probably your Knox is still 0, check it in DL mode, if it is and you have the phone less that 3 yrs (1 yr warranty+2yrs factory warranty) best solution would be to ask in Samsung repair center if the factory warranty would be accepted (ofcourse dont mention flashing, just say you tried official update, and play dumb).
If not you can try custom kernel wich will bypass DRK, and prolly make the phone bootable, but there is no guarantee everything will work well (maybe it will, but mostly it doesnt, forget using Samsung pay, and KNOX tripped)
As for EFS, maybe I am wrong, but I think EFS contains IMEI and sn info, and DRK is something else.
Click to expand...
Click to collapse
Thanks for your reply!!.
I took my S6 (925F) to a Samsung service center as you said. However, they told me that my S/N was incorrect (I bought a second-hand S6 edge, I think someone changed it) so they couldn't fix it.
Now I'm trying to use SmartSwitch to do a factory reset but it asks me for the S/N and I don't have the original one, just a S/N from a non edge S6 (920F). How can I do the factory reset without my S/N??? Can I use the serial number from another 925F??
Now I'm trying to find an engineering bootloader, to bypass the R/L and flash CF-AutoRoot, custom recovery.... but I only find it for 5.0.1 or... for galaxy S6 G925T, not F.
Finally, I managed to fix my S6 by myself!! (not really, but at least it boots...)
This is what I did:
- I found a factory binary for my S6 so I flashed it via ODIN
- I flashed a 6.0.1 ROM without hidden and without cache
Then it boots without any problems. However, now I can't get into recovery
I hope this will help someone