yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S9 & S9+ Cross Device Development] Rustdroid:
It should be working, something must be wrong with the bootloader. try flashing a custom kernel or boot image. maybe try some other custom stock roms. i wouldn't flash stock android 10 with Odin, you might have problems with RMM like me. if you go to stock again flash a Oreo rom and don't update.
[Samsung Galaxy S9 & S9+ Cross Device Development] waynea:
Hmmm..I feel out of my depth now, how do I ho about flashing a custom bootloader or kernel?

Ive never done that before..

Can you point me to some download links please?
[Samsung Galaxy S9 & S9+ Cross Device Development] Rustdroid:
Just flash some other roms they have boot image included. Just get a android 9 or 10 rom running first then try 11.
[Samsung Galaxy S9 & S9+ Cross Device Development] waynea:
Hiya

looked for other ROM options and most here in XDA seem no longer supported.

Settled on crDroid android 10. one zip files generated TWRP error 7, the other generated a corrupt zip file error.

I cant find any android 9 ROMS....
[Samsung Galaxy S9 & S9+ Cross Device Development] AngelRoker:
Hello everyone!

I'm having a pretty bad time trying to get TWRP installed on my S9+.

First of all:

- My device is a G9650 (Exynos)

- OEM bootloader is unlocked

- Coming from up-to-date stock firmware

- Never flashed anything on this device (I do have experience tho, I was a flash-a-holic back in the day with my S7e and the legendary S2)

- I'm installing TWRP to use it with LOS 17.1

- TWRP version I tried is 3.5.2

I followed every step of this guide's part 1. My problem is, I just can't boot into TWRP.

The steps I did:

1. Logged out every account and factory reset on Stock Rom

2. After reset, unlocked OEM bootloader

3. During the reboot of the OEM unlock reset, booted into odin mode

4. Flashed TWRP while holding [Power]+[Bixby]+[Vol up]

5. Stuck on the following screen

Spoiler content hidden.

6. If I shutdown the phone and try to get the recovery, I get to the same screen as above.

7. If I let the phone boot, I get to the Stock Rom and can use it just fine but it'll overwrite TWRP with the stock recovery.

8. Reflashing TWRP get me stuck in the same screen as above.

Well... Did I do something wrong? Anyone know how can I boot into TWRP in this case?
[Samsung Galaxy S9 & S9+ Cross Device Development] HarrisonS9:
im not really much help here, although i did translate the chinese red writing for you, it's just a software warning, it reads:

"This phone is not running the software officially released by Samsung. There may be a problem with the function and security of the phone, and you cannot install software updates."

the steps i took to flash twrp on my s9 g960f:

1. unlock bootloader/OEM unlock

2. boot to download mode

3. flash twrp using odin (turn off auto reboot)

4. boot to recovery using power, bixby and volume down, when the screen goes black hold volume up instead of volume down.

let me know if this helps
[Samsung Galaxy S9 & S9+ Cross Device Development] AngelRoker:
Thanks a lot but my problem was with the piece between the chair and the keyboard. (aka myself)

Just to clarify, everything I did was correct except identifying my device model. I have the G9650 which is the International Snapdragon variant instead of Exynos as I previously thought. Binaries are not interchangeable between these two SoCs.

I just wonder why my system booted besides having an incompatible recovery flashed...

Anyway, as soon as I flashed the correct binary, it worked as expected on the first try.

Lesson to newcomers: triple-check your device model before flashing anything. I was

damn lucky

I didn't brick my phone.
[Samsung Galaxy S9 & S9+ Cross Device Development] HarrisonS9:
glad you got it fixed!
[Samsung Galaxy S9 & S9+ Cross Device Development] xozeus:
AFAIK don't use TWRP 3.5.x if you plan to use Android 10 (compatibility broken with this version).

Use only TWRP 3.3.1.1 to avoid problems (maybe 3.4.0 will do the job too).
[Samsung Galaxy S9 & S9+ Cross Device Development] vwong:
do you have link of RC2 Kernel, which you mentioned in signature.
[Samsung Galaxy S9 & S9+ Cross Device Development] HarrisonS9:
it's unreleased, and still in development. you can speak to @Baddar90 on telegram, if you ask him kindly, and agree to report bugs, he might give you a copy :)
[Samsung Galaxy S9 & S9+ Cross Device Development] Elveneleven:
TWRP 3.4.0 Definitely works with Android 10.

I'm running a G965F DS with TWRP 3.4.0 RR8.x (Android Q) and Magisk 23.0. All Fine.

Had a lot of problems having TWRP 3.5.x installed. Downgraded to 3.4.0 and all was fine.

Since device trees are forked on 3.5.x and later and there is no actual device tree for Android 10 (just for Adroid 9) it is not recommended to use TWRP later than 3.4.0 (last version before the fork).

I think this is also recomended for other recoverys based on twrp, but it depends on the devs of these recoverys,
[Samsung Galaxy S9 & S9+ Cross Device Development] iceddeath:
i have a question, when wanting to enable OEM unlock, it asked me to factory reset.

this guide mentioned, don't let it complete the whole reset process.

but how exactly? it doesn't tell what will happen on phone screen if we agreed to factory reset, and when exactly to reboot the device to download mode (step7).

so right now i haven't enabled OEM unlock, need a help. thanks

solved, i overlooked this "be prepared to use reboots as chances to flash or reboot into TWRP."

now can flash TWRP 3.4.0.0 (don't use latest TWRP if you're on latest firmware, flashing dm verity will fail), and already flashed magisk 23.

setting up the phone now...

any recommended kernel to use for stock rom?
[Samsung Galaxy S9 & S9+ Cross Device Development] HarrisonS9:
which device are you using?
[Samsung Galaxy S9 & S9+ Cross Device Development] Philipp_:
I'm trying to put an current LOS on my S9. I've already used heimdall to put TWRP 3.5.2.9 on the Phone.

Sadly, TWRP always asks for a password to decrypt the data partition. I don't remember putting in a password. Can I format the partition somehow to get rid of the password?

Thank you
[Samsung Galaxy S9 & S9+ Cross Device Development] Philipp_:
How can I clone my LOS from one S9 to another?

I've got the current TWRP on both phones.
[Samsung Galaxy S9 & S9+ Cross Device Development] ptuner:
So all Exynos models are good? Any outliers? Is a certain version required to flash TWRP? If so are there ways to get to that version?
[Samsung Galaxy S9 & S9+ Cross Device Development] WolfHunter16:
How can I install TWRP for starqltecs (SM-G960W)? Can any of you guys build a TWRP version for starqltecs?
[Samsung Galaxy S9 & S9+ Cross Device Development] Philipp_:
I get the red text "only official released binaries are allowed to be flashed".

Now I've downloaded the stock-Rom from sammobile to flash it. Sadly, I don't have windows so I can't use odin.

How can I flash the stock-Rom on linux with heimdall? Thank you
[Samsung Galaxy S9 & S9+ Cross Device Development] rainbowxxl:
EDIT: no error with twrp 3.5

i get a error message by flashing the dm-verity and force encryption disabler:

Updater process ended with ERROR: 1

Error installing zip file '/external_sd/no-verity-opt-encrypt-samsung-1.0.zip'

Updating partition details...

...done

ive testet 2 roms, no works
[Samsung Galaxy S9 & S9+ Cross Device Development] vaidhy2007:
Hello Guys, I installed TWRP. Once i install no-verity zip, I unable to setup fingerprint and my lockscreen pin also behaves weird ? Is the no-verity zip required ?
[Samsung Galaxy S9 & S9+ Cross Device Development] vaidhy2007:
Can we use the latest magisk ?
[Samsung Galaxy S9 & S9+ Cross Device Development] MECH_TECH:
I have the G960F with Android 9 rooted with Magisk 25.1 and G960FXXS7CTA1 and TWRP 3.3.1-1. What is the best version of TWRP to use on this phone? I have tried using the backup in TWRP to my SD card but it keeps stopping and I get a failed error. The SD card is 256Gigs and has almost nothing on it so it has plenty of room.
[Samsung Galaxy S9 & S9+ Cross Device Development] Wlld1:
I have Error 1 installing any ZIP in TWRP. Trying twrp-3.6.0.9.1, 3.7.0.9.0... This bug came after TWRP update. I had LineageOS installed. Tryed flash G960FOXMGFUG4 via Odin, after TWRP and I cand even install dm-verity and force encryption disable - always Error 1. Phone G960FD
[Samsung Galaxy S9 & S9+ Cross Device Development] Mebbon:
DId you solve this? Having the same issue on a G-965FDS
[Samsung Galaxy S9 & S9+ Cross Device Development] Papaya59:
Hi ! I just left my S9 in the drawer since OneUI 2.5 and I need it because my phone just broke.

Just to be sure, do I have to update my S9 on the latest firmware (something like OneUI 5.1) to install latest TWRP version ? (and therefore to install Noble rom for exemple ?)
[Samsung Galaxy S9 & S9+ Cross Device Development] biritomium:
Does anybody know how to install the no-verity stuff? I always get Error: 1
[Samsung Galaxy S9 & S9+ Cross Device Development] Superkenel:
So thank you !

I was trying to install iode os, and I couldn't install the special recovery for it.

1. Download the recovery from the tutorial for S9+on iode os github

( the 1-2-3-4-5-6 didn't work for me, I've also installed and tried Heimdall without success ),

2. Use 7zip to transform it to *.tar

3. Use Odin [ AP ] to upload the recovery *.tar in the phone ( I've used "Odin3 v3.14.1_3B_PatcheD.exe" )

4. Then use 7. & 8 of the tutorial for S9+ on iode os github.

( don't forget : developper mode activation, connection to wifi = OEM bootloader presence in the developper mode options, I've also disabled verification of adb installation, you will also need Minimal ADB and Fastboot ).

#iodeos #s9+ #G965F
[Samsung Galaxy S9 & S9+ Cross Device Development] Methanoid:
Trying to flash recovery on a non working phone with no recovery present (for some reason) and whilst I can get into Download mode NOTHING will make Odin flash recovery.... Is the the flash memory dead or locked to read only? Desperately need to get a recovery on so I may get to read important photos off the device

ANY HELP please?
[Samsung Galaxy S9 & S9+ Cross Device Development] Superkenel:
Unbrick Samsung | Flash Stock Firmware via Odin

In this guide, we will show you the steps to unbrick your Samsung device and fix bootloop by flashing the stock firmware via Odin.

droidwin.com
[Samsung Galaxy S9 & S9+ Cross Device Development] Methanoid:
ummm "non working phone with no recovery present" - it doesnt boot at all so I cannot do the enable dev mode etc. If it booted at all I'd just copy photos off and wipe it totally....
[Samsung Galaxy S9 & S9+ Cross Device Development] Superkenel:
So in that case, you must open the phone and put away the CMOS battery, and change the jumpers ? =D
[Samsung Galaxy S9 & S9+ Cross Device Development] Methanoid:
Thanks - I had no idea the phone HAS a CMOS battery or jumpers. I dont suppose you know where I'd find pics of the board that would guide me to where CMOS battery is and what each jumper does?
[Samsung Galaxy S9 & S9+ Cross Device Development] Superkenel:
It was a joke !
[Samsung Galaxy S9 & S9+ Cross Device Development] Methanoid:
thought it might be but invested in this I thought I couldnt take chance!
[Samsung Galaxy S9 & S9+ Cross Device Development] Superkenel:
Restart a broken phone won't be easy, it's an hardware hack.

Like this one
[Samsung Galaxy S9 & S9+ Cross Device Development] bidav1:
Guys i had no oem remove option, waited for 7 days and then yesterday it was there. so i clicked on it, restarted the phone (without twrp or anything) and all the data and system on my phone was erased and set as new phone without the ability to recover from samsung cloud no idea why.

so now i set my phone from scractch but oem unlock is again not there i guess for 7 more days.

what are the correct steps next time to keep it there even without root?

thank you
[Samsung Galaxy S9 & S9+ Cross Device Development] cebs:
Try this: https://xdaforums.com/galaxy-s9-plus/how-to/guide-root-s9-oem-fix-t3763974
[Samsung Galaxy S9 & S9+ Cross Device Development] Poukhovitch:
For sammobile download try to use another browser like firefox it is functional. With chrome ca does not work
[Samsung Galaxy S9 & S9+ Cross Device Development] ctakah27:
how do I check if mine is exynos or snapdragon?
[Samsung Galaxy S9 & S9+ Cross Device Development] Poukhovitch:
download phone info on play store
[Samsung Galaxy S9 & S9+ Cross Device Development] Paradoxxx:
Anyone having issues with backup & restore ?

They are being awfully slow, and CPU Ramps up to 82 degrees while restoring.
[Samsung Galaxy S9 & S9+ Cross Device Development] Normusmaxamus:
I noticed that also. Not sure why though.
[Samsung Galaxy S9 & S9+ Cross Device Development] cebs:
Yap, the same to me, over 1h to backup everything....

Let's wait to further updates :)
[Samsung Galaxy S9 & S9+ Cross Device Development] rxk:
My Galaxy s9+ going on boot loop after installing twrp.

Which patch do I need to fix OEM unlock problem? N965F_Root_for_OEM_issue_devices.zip or RMM-State_Bypass_Mesa.zip?

please help.
[Samsung Galaxy S9 & S9+ Cross Device Development] jesec:
This issue is caused by incompatibility between TWRP and newly introduced EAS scheduler.

I hope to solve this problem in next few weeks.

Bootloop is not likely to be caused by OEM unlock problem.

(OEM unlock problem leads to "Custom binary blocked by FRP" not bootloop)

Make sure that you flashed no-verity package. (part 2 of guide)

Note that YOU HAVE TO USE SPECIAL VERSION.

NOT GENERAL 6.0.
[Samsung Galaxy S9 & S9+ Cross Device Development] rxk:
I flashed no-verity-opt-encrypt-6.0.zip this as well. But still boot loop. Now I need to wait another 7 days for OEM unlock appear again.
[Samsung Galaxy S9 & S9+ Cross Device Development] mevorach:
Is there a way to enter recovery directly after flashing with odin ? With out the chance to reboot to system? To add a checkbox " reboot to recovery " in odin ?
[Samsung Galaxy S9 & S9+ Cross Device Development] rodhal:
CPEFS error

NEMESISKERNEL_S9_S9Plus_V1.0.0 seems to fix the cpefs error.:):o:D

Flash the Kernel before Sr5-SuperSU, it still says the error, but it rooted the phone.
[Samsung Galaxy S9 & S9+ Cross Device Development] rfb813:
Can you use this on S9?
[Samsung Galaxy S9 & S9+ Cross Device Development] cebs:
Cpefs error doesn't interfere with nothing so far, you can root, flash kernel, backup and restore without any problems
[Samsung Galaxy S9 & S9+ Cross Device Development] Geekser:
If you want to reboot into recovery after flashing something in ODIN, Before flashing whatever you are flashing in ODIN, go to ODIN OPTIONS - uncheck auto reboot. Then When TWRP finishes flashing and you see "PASS" in ODIN, hold power, bixby and voume down until the screen goes black - then switch to to POwer, Bixbyt and Volume up and yoiu will boot into recovery.

I don't know who created ODIN but I doubt you will ever see a reboot to recovery option added in ODIN so for the time being this is your only option, but it works well enough.

Good Luck
[Samsung Galaxy S9 & S9+ Cross Device Development] kristova86:
I need help

Now I don't know what stupide I did , today I get OEM unlock in my developer options then I enabled it and closed the phone to add ex. SD card including all recovery and root files, I opened the phone but I faced a black screen asking only to reset my phone , I did it and once phone opened I surprised than no OEM unlock enabled again.

do I have to wait another 7 days to get it again available , or I have to flash stock?

Note : phone was opened with click on reset only without flashing the stock by odine.

Please for any support.
[Samsung Galaxy S9 & S9+ Cross Device Development] AlienSexGod:
Similar happened to me except I was in the middle of the first smart switch backup to my PC of my phone when I saw that OEM unlock was now available and I turned it on. Next thing I know the Smart Switch backup freezes on 87% and I go to restart the phone and same deal it wants to wipe the phone. I think that Samesung have set it up to wipe your phone as soon as you do OEM unlock? Sadly I had no backup (obviously no TWRP, root or Titanium backup yet) and I am back to no OEM UNLOCK! Could someone please write a guide for S9 noobs please? I admit I am one.

FYI to get recovery on a S9 you need to add the stupid Bixby button to the button combo. Like we really need that...

Basics like this... A simple do this do that then you have TWRP then do this do that then you have root with Magisk preferably. Something a child could follow? I would write it for everyone else but I have not successfully TWRP and rooted yet...
[Samsung Galaxy S9 & S9+ Cross Device Development] kristova86:
Guys , please we need your support , anyone knows what to do in this problem.
[Samsung Galaxy S9 & S9+ Cross Device Development] cebs:
Hope this helps

https://xdaforums.com/showthread.php?t=3763974
[Samsung Galaxy S9 & S9+ Cross Device Development] Swarai:
So your GS9p works now?
[Samsung Galaxy S9 & S9+ Cross Device Development] AlienSexGod:
[/COLOR]

Not really mate. We need to know if this normal that after turning OEM unlock on and doing a forced reset that OEM unlock is all turned on after we have done the reset. I have to wait another 5 days for OEM unlock to reappear.

Then simple do this, then do that instructions for recovery and root pointing out all the differences that the S9 requires like I pointed out that you need to use the Bixby button to get into download and recovery modes. Developers already know this stuff but even IT consultants that have just picked up this new phone won't know what to do.

Giving a link to a thread that has a bit of info here and there isn't my idea of writing a guide for people. :cyclops:
[Samsung Galaxy S9 & S9+ Cross Device Development] rodhal:
Everything seems to work now. Before there was no SuperSU app on the phone and it was not rooted, but now everything is working fine.:)
[Samsung Galaxy S9 & S9+ Cross Device Development] lysp:
Similar thing happened to me.

Unlocked oem, and rebooted due to the OTA official firmware upgrade. It forced a wipe and I was in 7 day jail.

This was with official firmware - I hadn't flashed a recovery or anything at that point.

After the 7 days, I quickly flashed twrp, verity/encryption and oem-unlock and hopefully that's the last I have to deal with.
[Samsung Galaxy S9 & S9+ Cross Device Development] Swarai:
Thanks ? big time... Does your wifi work? Mine does not... Edit neither does Hotspot or Bluetooth :(
[Samsung Galaxy S9 & S9+ Cross Device Development] jack allen:
That didnt work for me how did you do it exactly please

---------- Post added at 10:13 AM ---------- Previous post was at 10:11 AM ----------

So what is the actuall error what does it do/not do and why if it does nothing are people like me trying to fix it??
[Samsung Galaxy S9 & S9+ Cross Device Development] Ebrraheem:
What about snapdragon variants?

Are we gonna stay without custom recovery like forever?
[Samsung Galaxy S9 & S9+ Cross Device Development] rodhal:
I had to redo my original firmware a couple of times, but followed https://www.theandroidsoul.com/samsung-galaxy-s9-root/ and got it all working (Root,wi-fi ,bluetooth and hot spot) now everything is perfect on my S9+.:D
[Samsung Galaxy S9 & S9+ Cross Device Development] jack allen:
What about that crappy cpefs error in twrp?
[Samsung Galaxy S9 & S9+ Cross Device Development] ratsalad:
It'll get sorted eventually, for now ignore it and carry on, it shouldn't stop you doing anything that you need to do.
[Samsung Galaxy S9 & S9+ Cross Device Development] rodhal:
It doesn't seem to effect anything on my phone.
[Samsung Galaxy S9 & S9+ Cross Device Development] exocetdj:
Certainly whilst backing up to ext sd

Gets up to 72 and is pretty slow at present.

Could this hurt the processor or internals much? Been backing up like mad recently

Recovery is solid and gets everything done aside from the above :highfive:
[Samsung Galaxy S9 & S9+ Cross Device Development] jack allen:
I was just posting about that yeah that dont work it goes all way to end and says failed you go to restore and there is only 2 partitions there so that cpefs error that everyone is saying 'is fine dont worry' must be something to do with this
[Samsung Galaxy S9 & S9+ Cross Device Development] mevorach:
Hi

Is it posible to put all zip files on sd external before starting the hole process ? so after wipe data i will not be needed to conect to pc ?
[Samsung Galaxy S9 & S9+ Cross Device Development] exocetdj:
Mine backs up fine but takes a while and the device reads 70 odd degress

Funnily enough it doesn't actually feel that warm whilst reading those temps
[Samsung Galaxy S9 & S9+ Cross Device Development] jack allen:
Mine dont and that f***ing cpefs error annoys me as i feel its a big part to do with this issue with twrp
[Samsung Galaxy S9 & S9+ Cross Device Development] iamnotkurtcobain:
No the cpefs thing ISN'T part of the slow Backup/Restore Problem.

Just go to the telegram channel and download an updated TWRP WITHOUT the cpefs error. But Backup and Restore is still slow as hell.
[Samsung Galaxy S9 & S9+ Cross Device Development] jack allen:
Is there a link for telegram i didnt see one??

---------- Post added at 09:07 AM ---------- Previous post was at 09:06 AM ----------

Is it march18 twrp i found link
[Samsung Galaxy S9 & S9+ Cross Device Development] iamnotkurtcobain:
Yes the march 18th one.
[Samsung Galaxy S9 & S9+ Cross Device Development] jack allen:
Thanks bro, cani flash with in twrp under image or flashfire or does it have to be odin
[Samsung Galaxy S9 & S9+ Cross Device Development] iamnotkurtcobain:
I extracted the img from the tar and flashed it as img in TWRP.
[Samsung Galaxy S9 & S9+ Cross Device Development] jack allen:
Safe, ill do that cheers bro

---------- Post added at 09:35 AM ---------- Previous post was at 09:23 AM ----------

Just tried that it failed i choose recovery not boot or the other option

---------- Post added at 09:39 AM ---------- Previous post was at 09:35 AM ----------

Im an idiot im sorry, i for some reason had fla**** ticked so i unticked and it works thank you bro thank you so much
[Samsung Galaxy S9 & S9+ Cross Device Development] benziii:
Also experiencing SuperSu freezing. It grants access before it hangs though, so usually a force close is all it takes.
[Samsung Galaxy S9 & S9+ Cross Device Development] Matce:
Stupid question here, but I hope this is close enough to topic:

I tried flashing TWRP/SU but got locked out for 7 days.

My current state is FRP and OEM Lock OFF, OEM Unlock not in dev options and RMM State = PreNormal.

I already had to reset the entire phone after my first flash that went wrong.

I read about the "Edit build.prop, remove RLC folder & flash RMM-State_Bypass", so I think I know how to do it right next time, but my question is:

If I flash the phone again (TWRP and SU), do I have to reset the phone AGAIN? I'm asking since I want to sell my old phone but if I have to delete everything again I gotta hang on to it for another week.

Thanks!
[Samsung Galaxy S9 & S9+ Cross Device Development] Griffiths_Anna:
[youtube]g3IppGISkP0[/youtube]

I just found a good video tutorial of how to root and installing twrp on s9 exynos

I hope this would help anyone who had a trouble while installing twrp
[Samsung Galaxy S9 & S9+ Cross Device Development] vulgaros:
Is OTG USB not working in the current version of TWRP?