This is potentially a MUCH easier way to OEM Unlock the S9.
I bought my S9 and waited the 7 days,did the unlock and accidentally let it wipe and reboot, so I had to wait the 7 days again. I tried the date manipulation trick and it never worked. Flashing a new bootloader wouldn't work.
Then I saw that Fastboot had an OEM unlock command, so I tried that, but it said it failed.
But then today, the 7 days were up again, and oem unlock finally appeared in my dev options again, and behold, OEM Unlock was already true!
I'm going to try flashing twrp and rooting later today, but I thought someone who may not want to wait 7 days could try this and see if even though it "fails" the bootloader may unlock anyway!
Assuming you have Fastboot and the proper USB drivers etc. Also assuming the device is not modified from its factory state etc.
Steps to attempt:
1. Turn off the phone.
2. Hold vol up, bixby, and power (to go into Fastboot)
3. From a command prompt enter: fastboot oem unlock
4. It will say it failed.
5. Attempt flashing the recovery of your choice via: fastboot flash recovery <recovery file>
Let people know in the comments whether this works!
Did this method work for your....
LysolPionex said:
This is potentially a MUCH easier way to OEM Unlock the S9.
I bought my S9 and waited the 7 days,did the unlock and accidentally let it wipe and reboot, so I had to wait the 7 days again. I tried the date manipulation trick and it never worked. Flashing a new bootloader wouldn't work.
Then I saw that Fastboot had an OEM unlock command, so I tried that, but it said it failed.
But then today, the 7 days were up again, and oem unlock finally appeared in my dev options again, and behold, OEM Unlock was already true!
I'm going to try flashing twrp and rooting later today, but I thought someone who may not want to wait 7 days could try this and see if even though it "fails" the bootloader may unlock anyway!
Assuming you have Fastboot and the proper USB drivers etc. Also assuming the device is not modified from its factory state etc.
Steps to attempt:
1. Turn off the phone.
2. Hold vol up, bixby, and power (to go into Fastboot)
3. From a command prompt enter: fastboot oem unlock
4. It will say it failed.
5. Attempt flashing the recovery of your choice via: fastboot flash recovery <recovery file>
Let people know in the comments whether this works!
Click to expand...
Click to collapse
which variant you use?
angel8502 said:
which variant you use?
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Click to collapse
SM-960F/DS.
But I just got the "Only Official released binaries are allowed to be flashed" message, so I might get to try this method again myself, lol.
How exactly are you able to run fastboot commands when this is a samsung?? Odin is fastboot replacement and there is no way to make it recognize Fastboot. Please enlighten
beatbreakee said:
How exactly are you able to run fastboot commands when this is a samsung?? Odin is fastboot replacement and there is no way to make it recognize Fastboot. Please enlighten
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Click to collapse
Well, I just got the lock screen freeze and had to force a reboot, and when I did, I couldn't flash anything recovery or rom via Odin, so I tried using fastboot again to oem unlock, and it fastboot didn't even see it connected, so what you're saying makes sense.
Is it possible I used ADB instead? Does ADB have an oem unlock command as well? Or maybe the factory reset after the first toggle didn't set OEM lock like it normally does?
I'm not sure what I did, but OEM unlock was definitely toggled on once the option appeared. I'm going to play around with it a bit more.
On a side note, when I go into download mode, it still says OEM LOCK: off, but still won't let me flash unofficial bins. Would the RMM Prenormal have something to do with that?
LysolPionex said:
Well, I just got the lock screen freeze and had to force a reboot, and when I did, I couldn't flash anything recovery or rom via Odin, so I tried using fastboot again to oem unlock, and it fastboot didn't even see it connected, so what you're saying makes sense.
Is it possible I used ADB instead? Does ADB have an oem unlock command as well? Or maybe the factory reset after the first toggle didn't set OEM lock like it normally does?
I'm not sure what I did, but OEM unlock was definitely toggled on once the option appeared. I'm going to play around with it a bit more.
On a side note, when I go into download mode, it still says OEM LOCK: off, but still won't let me flash unofficial bins. Would the RMM Prenormal have something to do with that?
Click to expand...
Click to collapse
take a pic n post it of download mode
elliwigy said:
take a pic n post it of download mode
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Just a close up, nothing else relevant in the screen.
LysolPionex said:
Just a close up, nothing else relevant in the screen.
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Click to collapse
most likely is the rmm state
elliwigy said:
most likely is the rmm state
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Click to collapse
That makes sense with what I found last night in another thread. I think I used an old version of the rmm Mesa bypass too, so we'll see what happens. In another 5 days...
This will not work. The large majority of Samsung devices (exceptions being the Galaxy Nexus and Nexus S) don't support Fastboot and there isn't any way to unlock the device using ADB.
The reason why your "OEM unlock" switch was already toggled was because, even after the data wipe, it doesn't reset. Your device stays OEM unlocked, but isn't RMM unlocked until the 7 day timer has passed -- so your bootloader stays locked until the RMM timer passes.
Fun fact: you can flash the "combination" firmware to your device and immediately enable OEM unlock, but you'll have to flash the normal firmware back and let the RMM lock timer pass still. You won't have to wipe your device that way.
tomiga said:
This will not work. The large majority of Samsung devices (exceptions being the Galaxy Nexus and Nexus S) don't support Fastboot and there isn't any way to unlock the device using ADB.
The reason why your "OEM unlock" switch was already toggled was because, even after the data wipe, it doesn't reset. Your device stays OEM unlocked, but isn't RMM unlocked until the 7 day timer has passed -- so your bootloader stays locked until the RMM timer passes.
Fun fact: you can flash the "combination" firmware to your device and immediately enable OEM unlock, but you'll have to flash the normal firmware back and let the RMM lock timer pass still. You won't have to wipe your device that way.
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Click to collapse
This is the first time I've seen a clear explanation off all of this. Thank you for that!
What do I need to flash a combination firmware? Anda what is this combination?
Ps: sorry my english I am Brasilian. He...he..
Regikitten said:
What do I need to flash a combination firmware? Anda what is this combination?
Ps: sorry my english I am Brasilian. He...he..
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Click to collapse
I'm not familiar with it, but I assume he's talking about this: https://forum.xda-developers.com/ga...ollection-combination-rom-samsung-s9-t3782737
There are a couple other threads about it in the S9 forum.
tomiga said:
This will not work. The large majority of Samsung devices (exceptions being the Galaxy Nexus and Nexus S) don't support Fastboot and there isn't any way to unlock the device using ADB.
The reason why your "OEM unlock" switch was already toggled was because, even after the data wipe, it doesn't reset. Your device stays OEM unlocked, but isn't RMM unlocked until the 7 day timer has passed -- so your bootloader stays locked until the RMM timer passes.
Fun fact: you can flash the "combination" firmware to your device and immediately enable OEM unlock, but you'll have to flash the normal firmware back and let the RMM lock timer pass still. You won't have to wipe your device that way.
Click to expand...
Click to collapse
So I kept the device on for 155 hours, and the oem option appeared again, so I booted into download mode: RMM prenormal (oem lock off still). When I started it back up, the oem option was gone again (still is). Does the 7 day period have to be without turning the device off?
LysolPionex said:
So I kept the device on for 155 hours, and the oem option appeared again, so I booted into download mode: RMM prenormal (oem lock off still). When I started it back up, the oem option was gone again (still is). Does the 7 day period have to be without turning the device off?
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to my understanding yes lol.. theres many threads with specific instructions.. if u miss one lil step u start over waiting period and all
elliwigy said:
to my understanding yes lol.. theres many threads with specific instructions.. if u miss one lil step u start over waiting period and all
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Click to collapse
Lol, so I'm at 182 hours uptime, but the OEM option isn't in dev options...do I risk going to download mode to see RMM status?
tomiga said:
This will not work. The large majority of Samsung devices (exceptions being the Galaxy Nexus and Nexus S) don't support Fastboot and there isn't any way to unlock the device using ADB.
The reason why your "OEM unlock" switch was already toggled was because, even after the data wipe, it doesn't reset. Your device stays OEM unlocked, but isn't RMM unlocked until the 7 day timer has passed -- so your bootloader stays locked until the RMM timer passes.
Fun fact: you can flash the "combination" firmware to your device and immediately enable OEM unlock, but you'll have to flash the normal firmware back and let the RMM lock timer pass still. You won't have to wipe your device that way.
Click to expand...
Click to collapse
The above information was clear and helpful, but one query with respect to my case.
I have an Samsung S7 edge (SM-G935FD), i have flashed custom ROM successfully, but due to some reason I need to go back to my Stock ROM and I was able to do successfully.
The question is, seems still my OEM is unlocked even after stock ROM, will the OEM lock will happen automatically after 7 days, or is there any way to lock back manually.
Thanks in Advance
Samsung doesn´t have fastboot , it uses some kind of own mode only accessible via Odin. I prefer this way.
Also you have Prenormal state , this is some kind of security blocking by Knox, happened to me and had to wait 7 days.
---------- Post added at 08:45 AM ---------- Previous post was at 08:44 AM ----------
askader said:
The above information was clear and helpful, but one query with respect to my case.
I have an Samsung S7 edge (SM-G935FD), i have flashed custom ROM successfully, but due to some reason I need to go back to my Stock ROM and I was able to do successfully.
The question is, seems still my OEM is unlocked even after stock ROM, will the OEM lock will happen automatically after 7 days, or is there any way to lock back manually.
Thanks in Advance
Click to expand...
Click to collapse
Will appear within 5-7 days since you flashed stock ROM.
ZoiraP said:
Samsung doesn´t have fastboot , it uses some kind of own mode only accessible via Odin. I prefer this way.
Also you have Prenormal state , this is some kind of security blocking by Knox, happened to me and had to wait 7 days.
---------- Post added at 08:45 AM ---------- Previous post was at 08:44 AM ----------
Will appear within 5-7 days since you flashed stock ROM.
Click to expand...
Click to collapse
Did it solved after 7 days?
hello everyone
i have device SM-G960F Indonesia
with latest modem and bootloader which is G960FXXUHFVB4
security patch 1 march 2022
developer option is = ON
OEM UNLOCKING = ON (Bootloader already unlocked)
USB DEBUGGING = ON
*in Download mode
RMM STATE = PRENORMAL
KG STATE = CHECKING....
FRP LOCK = OFF
OEM LOCK = OFF
the question is , i can't install twrp. how ?
error : "Only Official binaries are allowed to be flashed".
i've been looking to google page 2 but no solution
1. from changing the date trick,
2. using miracle box to baypass the rmm
none of them works,
i still can't install twrp, error : "Only Official binaries are allowed to be flashed"
if there's anyone who can solve my problem, i owe you my thanks.
I don't know if it applied to the S9, but most recent Samsung phones have a very particular way of fully unlocking the bootloader as such
How to unlock bootloader:
- Backup all your media, this process will delete your internal media including music and photos
- Go to developer settings and enable [OEM Unlock]
- Reboot to download mode
- When prompted, press and hold VOL + to enter bootloader unlock mode
- Press VOL + to confirm you want to unlock bootloader, this will wipe your data
- If you think the bootloader is fully unlocked, it is actually not! Samsung introduced VaultKeeper, meaning the bootloader will still reject any unofficial partitions before VaultKeeper explicitly allows it.
- Go through the initial setup. Skip through all the steps since data will be wiped again later when we flash TWRP and magisk
- Enable developer options, and confirm that the OEM unlocking option exists and is grayed out. This means the VaultKeeper service has unleashed the bootloader. This step is MANDATORY
- Your bootloader now accepts unofficial images in download mode.
still not wroking sir,
below is the guide exactly like you.
How to Unlock Bootloader on any Samsung Device [New VaultKeeper Method]
In this guide, we will sho you how to unlock the bootloader on any Samsung device, keeping in mind the new VaultKeeper mechanism.
www.droidwin.com
i still got message "Only Official binaries are allowed to be flashed".
thanks for your help
nurulganong said:
still not wroking sir,
below is the guide exactly like you.
How to Unlock Bootloader on any Samsung Device [New VaultKeeper Method]
In this guide, we will sho you how to unlock the bootloader on any Samsung device, keeping in mind the new VaultKeeper mechanism.
www.droidwin.com
i still got message "Only Official binaries are allowed to be flashed".
thanks for your help
Click to expand...
Click to collapse
Yeah it looks like the guide really covered their bases. Check download mode and check unlock mode to see if it asks you to unlock (and not lock) the device.
I've had Samsung devices in the past that required this step more than once since the first time it still gave me the option to unlock instead of locking, which means that it didn't really unlock in the first place.
Has anybody solved this issue?