Develop Bugs

'Enable OEM Unlock' not working?

Hi, I have a LG G4 H815 on Lollipop and I want to unlock it's bootloader to root it and flash an update and do other stuff. I want to try to unlock the bootloader the official way but whenever I go into the developer options and press the 'Enable OEM Unlock', it gives me a warning and I tap Ok but the slider still stays at the off position and it stays disabled
I really want to flash some stuff on it because some of the stock LG stuff is pretty crappy. Thanks in advance!

Try to soft reset your device and try after that

Zentom said:
Hi, I have a LG G4 H815 on Lollipop and I want to unlock it's bootloader to root it and flash an update and do other stuff. I want to try to unlock the bootloader the official way but whenever I go into the developer options and press the 'Enable OEM Unlock', it gives me a warning and I tap Ok but the slider still stays at the off position and it stays disabled
I really want to flash some stuff on it because some of the stock LG stuff is pretty crappy. Thanks in advance!
Click to expand...
Click to collapse
I don't have a slider. It's just a tick box. Try updating to the latest version first or reset your phone completely. All your files are wiped anyway when unlocking the bootloader so you have nothing to lose in trying these.

htr5 said:
I don't have a slider. It's just a tick box. Try updating to the latest version first or reset your phone completely. All your files are wiped anyway when unlocking the bootloader so you have nothing to lose in trying these.
Click to expand...
Click to collapse
I tried updating my phone to Marshmallow using the LG Flash tool with a kdz but the tool was having its own problems. It kept saying that it couldn't connect to server. I tried a lot of other methods to upgrade to Marshmallow but they didn't work. Do the flash tools need the bootloader to be unlocked too?

Zentom said:
I tried updating my phone to Marshmallow using the LG Flash tool with a kdz but the tool was having its own problems. It kept saying that it couldn't connect to server. I tried a lot of other methods to upgrade to Marshmallow but they didn't work. Do the flash tools need the bootloader to be unlocked too?
Click to expand...
Click to collapse
Without root or an unlocked bootloader, you can only use official root tools. I don't think your software version matters too much. Just do the full factory reset. There's no reason not to try doing this as bootloader unlocking does a factory reset itself.

I have also tried everything on my lg g4 on marshmallow...but can't turn on the oem unlock tick...
Any solutions

I tried factory reset too but still, not switching :'(
Sent from my QMobile A1 using XDA Labs

Hi same problem here, have you find a solution ?
Thanks

Tu4n3r said:
Hi same problem here, have you find a solution ?
Thanks
Click to expand...
Click to collapse
No, I didn't find a solution But I sold it anyway because the phone started to lag a lot in normal tasks
Sent from my QMobile A1 using XDA Labs

I got the same issue as yours here...and cannot even flash some Stock Rom on this "H815" model.....is your phone a refurbished model from Aliexpress? (as I suspect something here)

Dear all
After spending 3 days searching on the net, I found the way :
"Just purchased a LG G4 (H815). I'm in the process of unlocking the bootloader, and have been following LG's official instructions. However, I am having trouble performing step 8 of this guide:
"Enable OEM unlock on your phone. Activating the "Enable OEM unlock" is necessary for the bootloader unlock. To enable OEM unlock, go to Settings >> Developer options and check Enable OEM unlock."
Going into developer options and tapping on "Enable OEM unlock" returns the pop up message "WARNING: Device protection features will not work on this device while this setting is turned on. CANCEL ENABLE". After checking ENABLE, the pop up goes away, and I can see the checkmark box is checked for less than a second, and then it goes back to being unchecked on its own. Can anyone explain this?
Also, if instead of tapping CANCEL or ENABLE on the pop up, I click off of the pop up, the pop up goes away and the box will stay check marked until I interact with something else. Entering adb reboot bootloader from here though still does nothing sadly.
UPDATE: I had to download LG Bridge, connect my phone and use LG Bridge to search for a software update (H81520H) that my LG G4's update center was not finding for some reason. After the update, I had an update android security patch level, and could enable my OEM Unlock!"

Hi,
Thanks for the reply.
LG Bridge doesn't solve the thing for me, it says "Your phone is up to date" ... I installed and removed LG Bridge a few times and even tried to update it. And even tried the "Update error recovery" (blue text on the bottom right of the window), still with no success.
Still no access to Fastboot for me, even if Adb sees in device when prompting the command "adb devices".
This "H815 20o" software version I got (from stock rom, refurbished phone, with this insane locked bootloader) is driving me nuts for 3 days now...

Up,
If anybody ever got the same issue, any help is very welcome!

Problem solved with uSu and SALT
See this thread
https://forum.xda-developers.com/g4/general/unlock-unlock-lg-g4-device-usu-t3760451

Google Pixel 2XL Non-Verizon Bootloader Unlock Issue (OEM UNLOCKING GREYED)

HELP POST
I've purchased a 2nd hand Pixel 2 XL 128GB, Checked with IMEI and found it is a GOOGLE varient and useing it.
But my "OEM UNLOCKING" option is greyed out i'm currently on jun 5 patch. Tried several methods to unlock but OEM unlock toggle is not enabling.
1. Tried basic method, 2. Tried with factory reset, 3. Tried factory reset without sim and proceeded with no setup,
All these method gave no results. Consulted google but they require Order ID which is not possible to get at this point.
Anyone has any ideas which I missed. I really got this phone for all the customization possibilities and camera.

rana103 said:
HELP POST
I've purchased a 2nd hand Pixel 2 XL 128GB, Checked with IMEI and found it is a GOOGLE varient and useing it.
But my "OEM UNLOCKING" option is greyed out i'm currently on jun 5 patch. Tried several methods to unlock but OEM unlock toggle is not enabling.
1. Tried basic method, 2. Tried with factory reset, 3. Tried factory reset without sim and proceeded with no setup,
All these method gave no results. Consulted google but they require Order ID which is not possible to get at this point.
Anyone has any ideas which I missed. I really got this phone for all the customization possibilities and camera.
Click to expand...
Click to collapse
I thought the consensus was there was no way of knowing by just checking the IMEI. I could be wrong though.

Did you try another sim card?
Sent from my Pixel 2 XL using XDA-Developers Legacy app

Try booting into bootloader mode. It should specify what variant it is, and at least show some serial numbers. Contact Google and ask them if they can check for you as well.
If it's a non-Verizon, definitively, you can try flashing the latest factory image from Google using fastboot without your SIM inserted.

Mine was greyed out too until I connected to WiFi, then rebooted. Then I could toggle. Freaked me out too because I bought it off of Swappa. That I was duped for s second.

jaxenroth said:
Did you try another sim card?
Sent from my Pixel 2 XL using XDA-Developers Legacy app
Click to expand...
Click to collapse
No, didn't try another sim. Tried sim and no sim. Now on DP4 from yday. Will give this a shot also then.

Latiken said:
Try booting into bootloader mode. It should specify what variant it is, and at least show some serial numbers. Contact Google and ask them if they can check for you as well.
If it's a non-Verizon, definitively, you can try flashing the latest factory image from Google using fastboot without your SIM inserted.
Click to expand...
Click to collapse
My bootloader screen picture is also shared in this post. As contacted google through chat, they also said it is non-verizon mode.
My CID : 00000000
Even without my sim inserted I've tried and result coming same. dunno why. Did you had this issue ? Can you share the solve you tried ?

djcrystals said:
Mine was greyed out too until I connected to WiFi, then rebooted. Then I could toggle. Freaked me out too because I bought it off of Swappa. That I was duped for s second.
Click to expand...
Click to collapse
Can u share what you did step by step? I've lost here. Tried many things but in the end nothing. :crying:

rana103 said:
Can u share what you did step by step? I've lost here. Tried many things but in the end nothing. :crying:
Click to expand...
Click to collapse
I booted the phone, set it up (added my account) using WiFi. After I set it up I noticed I couldn't toggle the OEM unlock. I rebooted, checked again, at that point I was able to toggle. That was just my situation though.

djcrystals said:
I booted the phone, set it up (added my account) using WiFi. After I set it up I noticed I couldn't toggle the OEM unlock. I rebooted, checked again, at that point I was able to toggle. That was just my situation though.
Click to expand...
Click to collapse
Dunno why mine is making my day painful!!

rana103 said:
Dunno why mine is making my day painful!!
Click to expand...
Click to collapse
Rana, i'm in the same boat. Did you put in your google account? This is the only difference from mine to djcrystals, I did not add my google account. Gonna try and enter it, but i'm also having this trouble with a certified refurbished.
Edit: did not work. Where did you check the imei number that tells you it's google and not verizon

Nergal di Cuthah said:
Rana, i'm in the same boat. Did you put in your google account? This is the only difference from mine to djcrystals, I did not add my google account. Gonna try and enter it, but i'm also having this trouble with a certified refurbished.
Edit: did not work. Where did you check the imei number that tells you it's google and not verizon
Click to expand...
Click to collapse
Try this one. http://www.imeipro.info/check_lg.html
Also when I had chat with google support they clearly mentioned it is a google varient.
But they are unable to support me without me telling them the order ID of this phn. I bought it 2nd hand from Babgladesh.
So, basically I'm screwed.

Pixel 2 xl OEM allow bootloader unlockewd
Hey really anyone..I have been able to duplicate twice each time a little different... I will continue to test and see if I can find a straight forward example that will yield a quick consistent result...The problem is now when I do a adb reboot booloader to actually unlock it still says not allowed when I was looking at the beauty of the toggle flipped on in dev optoins prior to having to reboot to bootloader ...its not wanting to stick ...soooo....wondering if there is a way to stay in the adb session without the adb reboot bootloader command to get to fastboot...or have some sorta multi user attack at this..can one be connected to the phone through the network adb option and fastboot at same time...or is there a adb command to unlock bootloader rather than fastboot...or can one make a script that could..I assume not I'd or at leat not without writing something above my abilities...but anyways I'm on current as of today for the pixel 2 xl verizon...by total mistake...I forgot the kill the dev slider on auto update system and it was to late...so this is achievable on current firmware. but I can read above where ppl have actually got the toggle off and freaked out too...but Ive done it 3 or 4 times now inside of 30 minutes but cant figure out how to issue the unlock command while its off or iff its impossible...so may not have anything here yet but man it sure looks pretty...I have a video of it and more Im making now to try and help someone crack this already...lol

still at it..
so far it appears to follow toggle wifi..flip over to dev...back to wifi...to dev...so forth and you catch it on...if you toggle the wifi on.. then off....then out and into dev oem option ..the wifi on and off few times then in and out of dev oem option then all the sudden I just am about to hit out of dev again when I notice its flippable......flip it on then confirm...but thats where Im stumped...it on is all I know pretty as can be after confirmation...hmmmm
rana103 said:
Try this one. http://www.imeipro.info/check_lg.html
Also when I had chat with google support they clearly mentioned it is a google varient.
But they are unable to support me without me telling them the order ID of this phn. I bought it 2nd hand from Babgladesh.
So, basically I'm screwed.
Click to expand...
Click to collapse

Uninstalling Android R Preview

Hello everyone. I installed the developer preview for Android R and i'm over it. I wanna go back to stock and I tried sideloading the OTA image and I get this message
update package is older than the current build. Downgrade not allowed.
My bootloader is locked so I can't flash the image through fastboot. I need help.

May update released might want to try that one.

hedgehogmd said:
May update released might want to try that one.
Click to expand...
Click to collapse
I tried but it didn't work.
I was on the phone with t-mobile to see if they could unlock my phone but we're having issues with the unlock app.
I miss the days of typing in a code and getting your phone unlocked.

As you have just learned, the developer previews are not the same as beta releases. With the beta releases, you can "quit" the beta program and have the old OS version reinstalled via an OTA update The preview releases have no such OTA reset ability. Therefore, you should not participate in the preview releases unless your phone is unlocked.
If the May release doesn't let you revert back, then I think the only option you will have is to wait until the beta is released. Join the beta and have it installed on your phone and then quit the beat and hope that the OTA update takes you back to stock Android 10. In theory I think it will.

you should use the flashall.bat script if you're installing the factory image. Though this will earase data. Just make sure you have USB debugging on
EDIT: I think you should still be able to unlock your bootloader
EDIT2: After reading a bit more I see that on carrier specific devices, OEM unlocking is greyed out until the phone is sim unlocked. But after you get the app working everything should work fine. Did you use another sim thats not from T Mobile?

RicardoSal24 said:
you should use the flashall.bat script if you're installing the factory image. Though this will earase data. Just make sure you have USB debugging on
EDIT: I think you should still be able to unlock your bootloader
EDIT2: After reading a bit more I see that on carrier specific devices, OEM unlocking is greyed out until the phone is sim unlocked. But after you get the app working everything should work fine. Did you use another sim thats not from T Mobile?
Click to expand...
Click to collapse
I put a different sim on the phone and it worked but it's b/c I did the temporary unlock. After 30 days the phone will be locked again. The phone won't let me unlock the bootloader unless it's a permanent unlock. The problem is I'll have to wait 30 days for the phone to re-lock. I wish t-mobile could just give me a code...
Lucky for me this phone isn't my daily driver but I wanted to revert to stock android b/c I got an invite to test out the Ratio launcher by Blloc. It's incompatible with Android R.

chivamex10 said:
I put a different sim on the phone and it worked but it's b/c I did the temporary unlock. After 30 days the phone will be locked again. The phone won't let me unlock the bootloader unless it's a permanent unlock. The problem is I'll have to wait 30 days for the phone to re-lock. I wish t-mobile could just give me a code...
Lucky for me this phone isn't my daily driver but I wanted to revert to stock android b/c I got an invite to test out the Ratio launcher by Blloc. It's incompatible with Android R.
Click to expand...
Click to collapse
Your best bet would be to just wait until you can permanently unlock it. I got mine from best buy and only recently did I bother with flashing roms on it.

I have a TMO device and had a temp unlock, and obviously it doesn't allow oem unlocking to be enabled. I DM'd TMOhelp on twitter and was able to get a permanent unlock there. They told me that I'd have to wait for my temp unlock to expire before I could perm unlock, but I didn't. If you have trouble with the app, just clear the storage and cache data for it. Once it is actually perm unlocked you'll immediately get a notification and be prompted to restart the phone. After that you should see oem unlocking enabled in dev options and be able to hit bootloader and unlock it.

[help me please] a505gn missing oem unlock

So dang first of all this situation sucks I have the phone(A505GN) now for over a year.. and I'm having a hard time unlocking the boot loader so here's the method that I tried using.
1. I tried the method where you change date and update etc didn't work
2. Tried waiting for 168 hours didn't work
It's getting hopeless I can't flash anything except official rom dang it I hope someone can save me from this dreadful situation I freaking won't get any other samsung phone
I attached a picture of my download mode I can turn the frp lock off but can't turn off oem lock so this sucks HELP me please

@Lynjun002
IIRC an Android user can not unlock the bootloader without OEM unlocking, because without this process the device will not accept the bootloader unlocking command.

jwoegerbauer said:
@Lynjun002
IIRC an Android user can not unlock the bootloader without OEM unlocking, because without this process the device will not accept the bootloader unlocking command.
Click to expand...
Click to collapse
Yes i fully understand dang so i think this is it im helpless

Lynjun002 said:
So dang first of all this situation sucks I have the phone(A505GN) now for over a year.. and I'm having a hard time unlocking the boot loader so here's the method that I tried using.
1. I tried the method where you change date and update etc didn't work
2. Tried waiting for 168 hours didn't work
It's getting hopeless I can't flash anything except official rom dang it I hope someone can save me from this dreadful situation I freaking won't get any other samsung phone
I attached a picture of my download mode I can turn the frp lock off but can't turn off oem lock so this sucks HELP me please
Click to expand...
Click to collapse
Do you have rmm status prenormal?

Alijjasghar said:
Do you have rmm status prenormal?
Click to expand...
Click to collapse
my download mode doesnt say anything about RMM i only have the line that says KG STATE : NORMAL

So there is no problem with rmm lock
And your phone is not the US varient
Actually you need to use your phone for 168 hours with internet connection on and no reboots. Did I do the same?

Alijjasghar said:
So there is no problem with rmm lock
And your phone is not the US varient
Actually you need to use your phone for 168 hours with internet connection on and no reboots. Did I do the same?
Click to expand...
Click to collapse
Right it is not US variant do i need to do factory reset or can i reboot phone and start waiting for 168 hours without turning of data?

Lynjun002 said:
Right it is not US variant do i need to do factory reset or can i reboot phone and start waiting for 168 hours without turning of data?
Click to expand...
Click to collapse
No need to factory reset. Reboot and start 168 hours with data ON and see if it helps. You can see your uptime somewhere in About phone. When it reaches 168 hours then check for updates and see if OEM lock appears

Alijjasghar said:
No need to factory reset. Reboot and start 168 hours with data ON and see if it helps. You can see your uptime somewhere in About phone. When it reaches 168 hours then check for updates and see if OEM lock appears
Click to expand...
Click to collapse
Ok bro im at 40hrs now

Lynjun002 said:
Ok bro im at 40hrs now
Click to expand...
Click to collapse
May I ask what this time trick your trying to make OEM show up? I'm having the same issue can you break down the time trick and what I do after? Please

Didnt work till now i havent unlock my phone

mattshann34 said:
May I ask what this time trick your trying to make OEM show up? I'm having the same issue can you break down the time trick and what I do after? Please
Click to expand...
Click to collapse
i failed and gave up man it didnt work

Question OEM Unlocking

I have been trying to root my S22 but continually run into the problem of OEM Unlocking. Everyone says just about the first thing to do is to select OEM Unlocking on the Developers Options but it isn't there. I even following one set of directions to try to make it show up but it didn't work either. I can't seem to get to the rooting without the OEM Unlocking. Anyone have any ideas? It doesn't have to do when I purchased the device which is what one person suggested but didn't help.

JimReid said:
I have been trying to root my S22 but continually run into the problem of OEM Unlocking. Everyone says just about the first thing to do is to select OEM Unlocking on the Developers Options but it isn't there. I even following one set of directions to try to make it show up but it didn't work either. I can't seem to get to the rooting without the OEM Unlocking. Anyone have any ideas? It doesn't have to do when I purchased the device which is what one person suggested but didn't help.
Click to expand...
Click to collapse
If this is a Snapdragon device, unlocking the bootloader most likely isn't possible.
Try this;
Remove the SIM
Factory reset
Skip through the setup wizard, DO NOT connect to WiFi or insert the SIM
After initial setup finishes, enable developer options
Manually set time at least 1 week ahead from now
Wait a few minutes
Check to see if OEM Unlocking is available

V0latyle said:
If this is a Snapdragon device, unlocking the bootloader most likely isn't possible.
Try this;
Remove the SIM
Factory reset
Skip through the setup wizard, DO NOT connect to WiFi or insert the SIM
After initial setup finishes, enable developer options
Manually set time at least 1 week ahead from now
Wait a few minutes
Check to see if OEM Unlocking is available
Click to expand...
Click to collapse
Your are right. Snapdragon won't let you unlock bootloader. Tried your steps and of course it didn't work.

JimReid said:
Your are right. Snapdragon won't let you unlock bootloader. Tried your steps and of course it didn't work.
Click to expand...
Click to collapse
Sorry to hear that.
What variant is your S22? Model number?

V0latyle said:
Sorry to hear that.
What variant is your S22? Model number?
Click to expand...
Click to collapse
Model# SM-S901U1