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?
Click to expand...
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
Click to expand...
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
Click to expand...
Click to collapse
Just a close up, nothing else relevant in the screen.
LysolPionex said:
Just a close up, nothing else relevant in the screen.
Click to expand...
Click to collapse
most likely is the rmm state
elliwigy said:
most likely is the rmm state
Click to expand...
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.
Click to expand...
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..
Click to expand...
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?
Click to expand...
Click to collapse
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
Click to expand...
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?
Related
It is stuck on a screen with the battery. I can get to bootloader mode but cannot get into recovery. Bootloader is locked... Please help
Basically I had the bootloader unlocked and it was rooted. I unrooted the phone and then I locked the bootloader and I am here now. Just wanted to make it go back to stock.
Is it a carrier model or a play store
https://forum.xda-developers.com/pixel-xl/how-to/psa-read-ca-bootloader-t3494615
This.
chapelfreak said:
Is it a carrier model or a play store
Click to expand...
Click to collapse
Google store
ASimpleSock said:
https://forum.xda-developers.com/pixel-xl/how-to/psa-read-ca-bootloader-t3494615
This.
Click to expand...
Click to collapse
I see the thread but it doesnt seem like theres a fix in it
tryfont said:
I see the thread but it doesnt seem like theres a fix in it
Click to expand...
Click to collapse
There probably isn't, if you've altered system and relock and toggle OEM unlocking off in dev. options you get bricked.
tryfont said:
It is stuck on a screen with the battery. I can get to bootloader mode but cannot get into recovery. Bootloader is locked... Please help
Basically I had the bootloader unlocked and it was rooted. I unrooted the phone and then I locked the bootloader and I am here now. Just wanted to make it go back to stock.
Click to expand...
Click to collapse
Did you try:
fastboot flashing unlock
Since you only relocked, you unlikely toggled "OEM unlock"?!
If it fails, I think you are SOL. Maybe someone with a proper solution will chime in. Otherwise, you have to RMA your device...
Good luck...
5.1 said:
Did you try:
fastboot flashing unlock
Since you only relocked, you unlikely toggled "OEM unlock"?!
If it fails, I think you are SOL. Maybe someone with a proper solution will chime in. Otherwise, you have to RMA your device...
Good luck...
Click to expand...
Click to collapse
It just says waiting for device and hangs there... I don't think it recognizes the phone
EDIT: IT WORKED!!!!!
It wouldnt recognize it and I ran fastboot continue and it just hanged there but I went into the bootloader mode and for like a quarter of a second it recognized it and forced it to boot
tryfont said:
It just says waiting for device and hangs there... I don't think it recognizes the phone
Click to expand...
Click to collapse
Open device manager in windows. Plug your phone and see how is your phone recognized.?!
5.1 said:
Open device manager in windows. Plug your phone and see how is your phone recognized.?!
Click to expand...
Click to collapse
Im on mac but its good now I edited my comment above. Only question is how to I completely clean the OS so I can relock bootloader without running into the same problem
This is whats happening to me- https://goo.gl/photos/2kv9Xo3HM3Mqn8AQ9
tryfont said:
Im on mac but its good now I edited my comment above. Only question is how to I completely clean the OS so I can relock bootloader without running into the same problem
Click to expand...
Click to collapse
Hey... Go into recovery and perform a factory reset.
Reboot bootloader and flash stock firmware. You could flash both slots to be sure your device is completely clean.
I wrote a how-to for someone having another issue. You.can follow this:
https://forum.xda-developers.com/showpost.php?p=71849370&postcount=28
When you are finished with flashing, reboot to be sure your system boot properly and your phone works as it should...
From here you can reboot into bootloader and issue:
fastboot flashing lock
If It was me I'd leave it unlocked though... Or at least OEM unlock enabled and ADB debugging ON. Since Google tend to release messed up OTA, you can always unlock the bootloader if needed.
But if you wish you can also disable the OEM unlock.
Good luck...
5.1 said:
Hey... Go into recovery and perform a factory reset.
Reboot bootloader and flash stock firmware. You could flash both slots to be sure your device is completely clean.
I wrote a how-to for someone having another issue. You.can follow this:
https://forum.xda-developers.com/showpost.php?p=71849370&postcount=28
When you are finished with flashing, reboot to be sure your system boot properly and your phone works as it should...
From here you can reboot into bootloader and issue:
fastboot flashing lock
If It was me I'd leave it unlocked though... Or at least OEM unlock enabled and ADB debugging ON. Since Google tend to release messed up OTA, you can always unlock the bootloader if needed.
But if you wish you can also disable the OEM unlock.
Good luck...
Click to expand...
Click to collapse
I'm pretty inexperienced with this kind of stuff and so you might have to explain it a bit further than what that link says. I did fastboot reboot bootloader in terminal but it can't find my device. Also I couldnt get into recovery when it was bricked so I probably still can't
tryfont said:
I'm pretty inexperienced with this kind of stuff and so you might have to explain it a bit further than what that link says. I did fastboot reboot bootloader in terminal but it can't find my device
Click to expand...
Click to collapse
Hey...
You boot into bootloader when the Device is powered off
Just like in your video: with power + volume down
You can see infos regarding:
Bootloader
Radio
S/N
DRAM
Boot-slot=
Etc...
This is the bootloader :good:
From here, unzip the google image you have downloaded, open the folder and from here run the flash-all script. Let your device reboot. Power it down, boot into bootloader again with power + volume down. Change active slot as I described in the link I gave you previously. Run the same flash-all again... Done!
Just for safety, remove your Google account before you continue. You'll add it again later...
Good luck...
5.1 said:
Hey...
You boot into bootloader when the Device is powered off
Just like in your video: with power + volume down
You can see infos regarding:
Bootloader
Radio
S/N
DRAM
Boot-slot=
Etc...
This is the bootloader :good:
From here, unzip the google image you have downloaded, open the folder and from here run the flash-all script. Let your device reboot. Power it down, boot into bootloader again with power + volume down. Change active slot as I described in the link I gave you previously. Run the same flash-all again... Done!
Just for safety, remove your Google account before you continue. You'll add it again later...
Good luck...
Click to expand...
Click to collapse
Alright thank you so much its doing the flashing right now. I really appreciate you helping...I was worried I'd have to get a replacement through google. Have a great day lad
tryfont said:
Alright thank you so much its doing the flashing right now. I really appreciate you helping...I was worried I'd have to get a replacement through google. Have a great day lad
Click to expand...
Click to collapse
Hey... Flash both slots... Just to be sure both are clean and nothing problematic remains on your device before locking your bootloader!
It could brick installing an OTA or whatever. Better restart 100% clean. :good:
Cheers...
Just flash the flash-all, relock and call it a day. Then you'll be fully stock and locked. I would however recommend rebooting once before locking to make sure its all good.
tryfont said:
It is stuck on a screen with the battery. I can get to bootloader mode but cannot get into recovery. Bootloader is locked... Please help
Basically I had the bootloader unlocked and it was rooted. I unrooted the phone and then I locked the bootloader and I am here now. Just wanted to make it go back to stock.
Click to expand...
Click to collapse
Hey man I have the same problem you can try calling Google support they can send you a replacement if you still have a warranty
my warranty has expired so I'm on my own
So, long story short I recently decided to try and root my oneplus7t I unfortunately made some mistakes and somehow corrupted some files. I read elsewhere in the forum that I could download the stock rom which I did and then use flash-all and that would allow me to go back to the factory settings so I could lock the oem and just go back to normal because I was tired of the headache. Unfortunately, after using flash-all I locked the oem thinking everything should be stock and it would work properly. But it says device is corrupt and trying to unlock the oem says oem unlocking is disabled.
So did I just completely brick my phone? I don't know of anyway to fix it at this point :/.
kschmitz4 said:
So, long story short I recently decided to try and root my oneplus7t I unfortunately made some mistakes and somehow corrupted some files. I read elsewhere in the forum that I could download the stock rom which I did and then use flash-all and that would allow me to go back to the factory settings so I could lock the oem and just go back to normal because I was tired of the headache. Unfortunately, after using flash-all I locked the oem thinking everything should be stock and it would work properly. But it says device is corrupt and trying to unlock the oem says oem unlocking is disabled.
So did I just completely brick my phone? I don't know of anyway to fix it at this point :/.
Click to expand...
Click to collapse
Can you still boot into bootloader via the hardware keys, whatever that combo is on the 7t?
Boot to bootloader or recovery and factory reset it or so.
Josh McGrath said:
Can you still boot into bootloader via the hardware keys, whatever that combo is on the 7t?
Boot to bootloader or recovery and factory reset it or so.
Click to expand...
Click to collapse
I can get to the bootloader but it's Device State -locked and when I tell it to boot into recovery it says the device is corrupt. When I use fastboot to oem unlock it says I cannot, and I can't flash when oem is locked either.
kschmitz4 said:
I can get to the bootloader but it's Device State -locked and when I tell it to boot into recovery it says the device is corrupt. When I use fastboot to oem unlock it says I cannot, and I can't flash when oem is locked either.
Click to expand...
Click to collapse
Try
fastboot erase userdata and
Fastboot erase cache
Let me know if that works or not we will move on. Probably won't work since it's bootloader locked
You may have to contact OP and while you're at it, get the MSM tool for us all :good:
It says erase is not allowed in locked state . I think this is probably all she wrote for this one. I think I'm just going to send it back tbh, the whole reason I was trying to root it was because it didn't work with Sprint like they said it would. and I was wondering if I could find a way too make it work with custom software. Thanks for trying
Are you able to flash one of these Fastboot ROMs?
Maybe Sideload can work!
https://support.oneplus.com/app/answers/detail/a_id/4583/kw/7t here is official stock file.
https://forums.oneplus.com/threads/how-to-do-flash-through-adb-sideload.509377/
https://www.the***********.com/sideload-ota-update-stock-recovery-adb/
Please refer above links for your knowledge purpose maybe it can help.....
I unfortunately no longer have Twrp installed as I did a flash-all with a stock rom already . If I try and flash recovery it says "flashing is not alllowed in lock state". Sideloading wasn't functional back when I had twrp either as the functionality for it is still in progress. I'll probably try contacting support one more time and see if I can get a T2 who can unbrick it, otherwise I'm just going to send it back. Thanks for the attempts guys!
Edit: As to the flashboot roms I flash-all'ed one of them and that's how I got into this mess :/.
kschmitz4 said:
I unfortunately no longer have Twrp installed as I did a flash-all with a stock rom already . If I try and flash recovery it says "flashing is not alllowed in lock state". Sideloading wasn't functional back when I had twrp either as the functionality for it is still in progress. I'll probably try contacting support one more time and see if I can get a T2 who can unbrick it, otherwise I'm just going to send it back. Thanks for the attempts guys!
Edit: As to the flashboot roms I flash-all'ed one of them and that's how I got into this mess :/.
Click to expand...
Click to collapse
I ended up needing to flash the fastboot 10.0.3 firmware and was able to do a local upgrade to 10.0.4 that way, then flashing a patched boot.img via fastboot
I can't run any flash commands as my oem is locked. I don't suppose there's anyway around that?
kschmitz4 said:
I can't run any flash commands as my oem is locked. I don't suppose there's anyway around that?
Click to expand...
Click to collapse
How did you flash twrp with it oem locked??That doesnt make sense
I had twrp on it when the oem was unlocked, I was trying to reset the device to stock, so I did a flash-all and then oem locked it. But for some reason the repair was unsuccessful, and now it says my device is corrupted and I forgot to turn on oem unlocking in the settings on my phone after the flash-all before I did the oem-lock.
kschmitz4 said:
I had twrp on it when the oem was unlocked, I was trying to reset the device to stock, so I did a flash-all and then oem locked it. But for some reason the repair was unsuccessful, and now it says my device is corrupted and I forgot to turn on oem unlocking in the settings on my phone after the flash-all before I did the oem-lock.
Click to expand...
Click to collapse
You should have no issues reflashing the stock images
I cannot flash anything. Because my OEM state is locked.
Boot to Stock Recovery ?
Holding for a long time Volume Down + Power Buttons while booting your phone ?
Volume down plus power button takes me to "Your device is corrupt and will not boot"
kschmitz4 said:
Volume down plus power button takes me to "Your device is corrupt and will not boot"
Click to expand...
Click to collapse
Looks like you will need the MSM tool to fix this issue. You'll have to contact OP support and they will remote in your PC, load their software and flash it 100pct back to stock.
Also, disconnect them before they can delete the MSM tool so we can have it here in the community
kschmitz4 said:
Volume down plus power button takes me to "Your device is corrupt and will not boot"
Click to expand...
Click to collapse
Press volume up/down and power, reboot to fastboot. Unlock bootloader again. Install update from settings, reboot and install it again. (local install)
Factory reset in setting, reboot fastboot, lock bootloader. Reboot and untick unlock bootloader in developer settings.
Don't know if it's too late but I believe there's a working MSM tool now
Hello, i unlocked the bootloader of my motorola one action. And i installed lineage 18.1 official, but i want to lock the bootloader again. i tried locking the bootloader using this help thread https://forum.xda-developers.com/t/...-2019-ask-any-question-noob-friendly.4010875/ but it din't work. Can somewone help me?
raphaelgamer981 said:
Hello, i unlocked the bootloader of my motorola one action. And i installed lineage 18.1 official, but i want to lock the bootloader again. i tried locking the bootloader using this help thread https://forum.xda-developers.com/t/...-2019-ask-any-question-noob-friendly.4010875/ but it din't work. Can somewone help me?
Click to expand...
Click to collapse
NEVER lock a phone with custom firmware installed. This usually leads to bootloops.
georg3_ said:
NEVER lock a phone with custom firmware installed. This usually leads to bootloops.
Click to expand...
Click to collapse
No, I Didn't try to lock the bootloader with a custom firmware.
raphaelgamer981 said:
No, I Didn't try to lock the bootloader with a custom firmware.
Click to expand...
Click to collapse
What are the steps you took before relocking the bootloader?
In my experience, relocking the bootloader should be the last thing you do, after you've got a working/bootable stock ROM.
arsradu said:
What are the steps you took before relocking the bootloader? In my experience, relocking the bootloader should be the last thing you do, after you've got a working/bootable stock ROM.
Click to expand...
Click to collapse
So, after i installed the latest stock rom, the device worked normally, but after waiting a while for the oem lock option appear in development options, it din´t show up. so i just gave up and installed lineage 19.1 but if i can i want to lock the bootloader again.
Raphael, I think you might have quoted my post twice, but didn't add an actual answer. Or maybe I'm super blind and I can't see it.
arsradu said:
Raphael, I think you might have quoted my post twice, but didn't add an actual answer. Or maybe I'm super blind and I can't see it.
Click to expand...
Click to collapse
ohh sorry, i tried replying to your post in my ipad 3 and it din´t show up any caracters.
raphaelgamer981 said:
So, after i installed the latest stock rom, the device worked normally, but after waiting a while for the oem lock option appear in development options, it din´t show up. so i just gave up and installed lineage 19.1 but if i can i want to lock the bootloader again.
Click to expand...
Click to collapse
So, the OEM lock/unlock thing comes with a pretty big caveat, and you need to be aware of it: loss of data.
Every time you lock or unlock your bootloader, a wipe data is triggered.
Now, for as far as I know, to lock the bootloader, you need two things:
1. Stock ROM. Don't do this on a custom ROM!
2. following command, in Terminal/Cmd Prompt
fastboot oem lock
Of course, you need to be in fastboot mode, so if you're not, and if you're booted and connected via USB (USB debugging needs to be ON and RSA fingerprinting accepted), do:
adb devices
It should display your device here. This is just to make sure ADB is working properly.
adb reboot bootloader
At this point, the phone should reboot into bootloader, so now you can do the lock command
fastboot oem lock
Data should be erased and, in case it doesn't automatically boot up, you can reboot the phone.
Don't worry about the OEM unlocking option in Developer Options. You just make sure the stock ROM is functional before attempting to relock the bootloader.
arsradu said:
So, the OEM lock/unlock thing comes with a pretty big caveat, and you need to be aware of it: loss of data.
Every time you lock or unlock your bootloader, a wipe data is triggered.
Now, for as far as I know, to lock the bootloader, you need two things:
1. Stock ROM. Don't do this on a custom ROM!
2. following command, in Terminal/Cmd Prompt
fastboot oem lock
Of course, you need to be in fastboot mode, so if you're not, and if you're booted and connected via USB (USB debugging needs to be ON and RSA fingerprinting accepted), do:
adb devices
It should display your device here. This is just to make sure ADB is working properly.
adb reboot bootloader
At this point, the phone should reboot into bootloader, so now you can do the lock command
fastboot oem lock
Data should be erased and, in case it doesn't automatically boot up, you can reboot the phone.
Don't worry about the OEM unlocking option in Developer Options. You just make sure the stock ROM is functional before attempting to relock the bootloader.
Click to expand...
Click to collapse
I tried that, and it din´t work, this method is the same that was in a help thread in xda forum of my device, this command works fine in my nexus 6, but on my moto one action it does not, i unlocked my bootloader via the normal method using motorola´s website, not using another method.
raphaelgamer981 said:
I tried that, and it din´t work, this method is the same that was in a help thread in xda forum of my device, this command works fine in my nexus 6, but on my moto one action it does not, i unlocked my bootloader via the normal method using motorola´s website, not using another method.
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Click to collapse
raphaelgamer981 said:
I tried that, and it din´t work, this method is the same that was in a help thread in xda forum of my device, this command works fine in my nexus 6, but on my moto one action it does not, i unlocked my bootloader via the normal method using motorola´s website, not using another method.
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Click to collapse
But why do you say it didn't work? Do you get an error at any point during the process?
arsradu said:
But why do you say it didn't work? Do you get an error at any point during the process?
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Click to collapse
no, i run the command and it asks for changing the oem lock setting in developer options, i reboot the phone and run through the setup process. Then when i enable developer options and check the oem lock option, it is greyed out.
Is it greyed out in the on or off position? Can you attach a screenshot? I don't remember the operations sequence... But I think the option was automatically switched back to the original position (off) when you lock the bootloader. I could be wrong though. So...when you run the "fastboot oem lock" command, it asks you to....what?
Set the option to on or off? Some screenshots from both the PC, with the message, and the developer options might help to clarify this.
arsradu said:
Is it greyed out in the on or off position? Can you attach a screenshot? I don't remember the operations sequence... But I think the option was automatically switched back to the original position (off) when you lock the bootloader. I could be wrong though. So...when you run the "fastboot oem lock" command, it asks you to....what?
Set the option to on or off? Some screenshots from both the PC, with the message, and the developer options might help to clarify this.
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Click to collapse
it is greyed in the on position, i can´t add a screenshot because i am in lineage 19.1 with root and the option shows up,when i run the command in cmd, it says to me to check the oem lock option in developer options
raphaelgamer981 said:
it is greyed in the on position, i can´t add a screenshot because i am in lineage 19.1 with root and the option shows up,when i run the command in cmd, it says to me to check the oem lock option in developer options
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Click to collapse
A screenshot would be really useful. But don't worry about it. When you're back to stock rom and ready to lock your bootloader, we can resume this then. I think either we're missing something, or it's everything ok, and you just need to switch that option off. Though, I remember I didn't have to do it manually. But I could be wrong though.
So, don't worry. Enjoy LineageOS and we can resume this when you're back to stock ROM and ready to lock.
arsradu said:
A screenshot would be really useful. But don't worry about it. When you're back to stock rom and ready to lock your bootloader, we can resume this then. I think either we're missing something, or it's everything ok, and you just need to switch that option off. Though, I remember I didn't have to do it manually. But I could be wrong though.
So, don't worry. Enjoy LineageOS and we can resume this when you're back to stock ROM and ready to lock.
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Click to collapse
ok thanks for your help!
arsradu said:
A screenshot would be really useful. But don't worry about it. When you're back to stock rom and ready to lock your bootloader, we can resume this then. I think either we're missing something, or it's everything ok, and you just need to switch that option off. Though, I remember I didn't have to do it manually. But I could be wrong though.
So, don't worry. Enjoy LineageOS and we can resume this when you're back to stock ROM and ready to lock.
Click to expand...
Click to collapse
hello, so i want to lock the bootloader again, how do i install the stock rom back?
arsradu said:
A screenshot would be really useful. But don't worry about it. When you're back to stock rom and ready to lock your bootloader, we can resume this then. I think either we're missing something, or it's everything ok, and you just need to switch that option off. Though, I remember I didn't have to do it manually. But I could be wrong though.
So, don't worry. Enjoy LineageOS and we can resume this when you're back to stock ROM and ready to lock.
Click to expand...
Click to collapse
so after running the fastboot oem lock command, it asked this in the cmd
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem lock
...
(bootloader) Check 'Allow OEM Unlock' in Android Settings > Developer
(bootloader) Options
OKAY [ 0.080s]
finished. total time: 0.080s
when i rebooted the phone, it showed the screen saying that the bootloader was unlocked. also i had to re run the command because it was going to erase my phone but that din´t happend, after going to developer options the option was still greyed out.
The last 3 days i've tried some roms from here.first i've unlocked the bootloader in developer menu,then from fastboot with the unlock key provided by motorola website,i've tried different rom,didnt like that i cannot use bank apps.so i went for locking.full reset,adb enable,reboot bootloader,full flash stock rom (last one from Motorola),reboot to check,adb enable, reboot bootloader,run command " fastboot oem lock " once ,it asked for confirmation due to data loss,then run command " fastboot oem lock " once more,then reboot to os.everything went ok,device dont show that was unlocked
Hey everyone!
I was updating to the latest Android beta to try to get the Move to iOS app to work. The update seemingly went fine and I was using my phone (on reddit lol) and suddenly it powered off.
Now when it starts I get a black screen that asyas "Fastboot Mode". My phone isn't unlocked so I haven't done anything funky with the firmware.
I'm afraid I've lost everything on the phone
Here's a picture of what the phone shows:
https://imgur.com/oBpGFGX
Well, the fact you can boot into fastboot is good news
Before we talk about possible actions:
- what ROM exactly were you coming from ? Was that rooted or with a custom kernel ? Was the device unlocked ?
- what ROM exactly have you been flashing ? By using which method ? Any additional steps you did while/after flashing this ?
s3axel said:
Was the device unlocked ?
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Click to collapse
Besides @adamkparker's statement below, the screenshot shows the bootloader is locked, unfortunately.
adamkparker said:
My phone isn't unlocked so I haven't done anything funky with the firmware.
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Click to collapse
You should never install Betas without having the bootloader unlocked. Is OEM unlocking at least enabled in Developer Options (I know you can't get in there right now, but was it enabled before the phone stopped being able to boot to Android)? If OEM unlocking is enabled, even with the bootloader locked now, you can try Official Google Android Flash Tool (OEM Unlocking needs to be toggled on - you may not have to manually unlock the bootloader - the "site" will do that on its own).
If OEM unlocking isn't enabled, there's probably nothing you can do to fix the phone - you'll have to RMA it.
Pretty sure he can sideload an ota if USB debugging was enabled. One user reported they were able to sideload with locked bootloader
fil3s said:
Pretty sure he can sideload an ota if USB debugging was enabled. One user reported they were able to sideload with locked bootloader
Click to expand...
Click to collapse
You can sideload OTA updateds without USB debugging enabled. It's really the only way forward for op.
Old solution didn't work for me. Does anyone know how to fix it in 2023?
ecrissor said:
Old solution didn't work for me. Does anyone know how to fix it in 2023?
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Click to collapse
What was the "old" solution?
Try this:
Boot into system, skip through the setup, connect to WiFi. Go to system settings, enable developer options. OEM Unlocking will not be visible. Force an update check, then go back and check to see if OEM Unlocking became visible. If it has, KG/RMM state should be OK or COMPLETED, and you should be able to flash custom firmware.
V0latyle said:
What was the "old" solution?
Try this:
Boot into system, skip through the setup, connect to WiFi. Go to system settings, enable developer options. OEM Unlocking will not be visible. Force an update check, then go back and check to see if OEM Unlocking became visible. If it has, KG/RMM state should be OK or COMPLETED, and you should be able to flash custom firmware.
Click to expand...
Click to collapse
My kg is checking but rmm ise prenormal, OEM unlock toggle is showing and unlocked
V0latyle said:
What was the "old" solution?
Try this:
Boot into system, skip through the setup, connect to WiFi. Go to system settings, enable developer options. OEM Unlocking will not be visible. Force an update check, then go back and check to see if OEM Unlocking became visible. If it has, KG/RMM state should be OK or COMPLETED, and you should be able to flash custom firmware.
Click to expand...
Click to collapse
Oem unlocking is visible but rmm state still show prenormal
ecrissor said:
Oem unlocking is visible but rmm state still show prenormal
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Click to collapse
I guess KG State is checking but RMM State is prenormal
V0latyle said:
What was the "old" solution?
Try this:
Boot into system, skip through the setup, connect to WiFi. Go to system settings, enable developer options. OEM Unlocking will not be visible. Force an update check, then go back and check to see if OEM Unlocking became visible. If it has, KG/RMM state should be OK or COMPLETED, and you should be able to flash custom firmware.
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Click to collapse
KG and RMM state is not same
Kgstate said:
KG and RMM state is not same
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Click to collapse
Still couldn't flash custom recovery
ecrissor said:
Still couldn't flash custom recovery
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Did you try to wait 168 hours?
yes, I tried to wait for months and not only the 168 hrs however nothing seems to be working and it's kinda really frustrating
and all tools not working (like chimera, magic crack or whatever they don't work)
I only wanna flash a custom from (one of my rights as an android user (phone is s9+ exynos )
so please if you know any way I can get this done I'd be really grateful
Attia0079 said:
yes, I tried to wait for months and not only the 168 hrs however nothing seems to be working and it's kinda really frustrating
and all tools not working (like chimera, magic crack or whatever they don't work)
I only wanna flash a custom from (one of my rights as an android user (phone is s9+ exynos )
so please if you know any way I can get this done I'd be really grateful
Click to expand...
Click to collapse
There is no way to unlock RMM until Samsung fixes their servers because RMM server is down ( https://rmm.samsung.com )
Kgstate said:
There is no way to unlock RMM until Samsung fixes their servers because RMM server is down ( https://rmm.samsung.com )
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Click to collapse
is there a way we can text their support to do so?
or raise a ticket for them?