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oneplus 7 pro oem unlock greyed out

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Chibisuke1219

Member
Apr 23, 2018
29
3
hi so I have the OnePlus 7 pro and the OEM unlock option is greyed out so I checked to see if my bootloader status was unlocked but it wasn't so idk what to do any ideas would be very much appreciated thanks for reading :)
 

Chibisuke1219

Member
Apr 23, 2018
29
3
^This. You need to sim unlock before converting to international, or you will be unable to unlock the bootloader and have OEM unlocking. At least until they fix the MSM to be able to skip sim unlocking.

so how do I do that? do I message the op of that thread with my info and they unlock it or what im alittle confused also thanks for the replys :)
 

Ricey

Senior Member
Jan 9, 2006
307
116
Samsung Galaxy Z Fold3
so how do I do that? do I message the op of that thread with my info and they unlock it or what im alittle confused also thanks for the replys :)

Yes, you can try it that way. If the device is already fully paid off you can also simply contact Tmobile and they will be able to sim unlock it for you already as well, or if you haven't paid off and want to chance it, you can try contacting them on twitter or through the tmobile app and try to get the customer service rep to unlock it. Though if you haven't paid it off it's probably easier and faster to DM the OP from that thread.
 

Chibisuke1219

Member
Apr 23, 2018
29
3
Yes, you can try it that way. If the device is already fully paid off you can also simply contact Tmobile and they will be able to sim unlock it for you already as well, or if you haven't paid off and want to chance it, you can try contacting them on twitter or through the tmobile app and try to get the customer service rep to unlock it. Though if you haven't paid it off it's probably easier and faster to DM the OP from that thread.

alright thanks so much will do
 

blindpet

Senior Member
Oct 21, 2007
177
7
www.htpcguides.com
Is this the international or the tmobile version?

I have the international version and am also stuck with the greyed out OEM Unlocking option. My bootloader is also still locked. Any help would be very much appreciated. I have tried using fastboot to oem unlock but I get this error

FAILED (remote: Please enable OEM unlocking in developer options first)
finished. total time: 0.007s

It was on a Chinese ROM before and I did use https://oxygenos.oneplus.net/Fulldowngrade_wipe_18821_190425_0253_user_fix_revision_MP_release.zip to downgrade so I could switch to the English ROM.
 

YileKu

Member
Jan 15, 2015
49
2
I also have a one plus 7 pro. It has been carrier unlocked but still the OEM unlock is greyed out. It is running Android 10. Is there a way to 'ungrey' the OEM unlock option? Thx
 

gunfan

Member
Jan 25, 2010
34
17
Do a search for this "The T-Mobile OnePlus 7 Pro’s bootloader can be unlocked by flashing Android Q" and fallow the instructions. Instruction are on xda.

There is no need to unlock the sim on the T-Mobile phone to unlock the bootloader.

Phone needs to be on the international firmware. This can be done with the patched msm tool. Then downgrade to android development preview 3 using local upgrade on phone. Unlock via fastboot and finally root and install a working rom or do the rollback to android p via local upgrade. Search for the guide and fallow the instructions. It really simple.
 
Last edited:

BranBro365

Member
Jan 30, 2019
41
15
Kind of related. I converted my t mobile oneplus 7 pro to the international version and am eligible for a sim unlock. I tried to do it over chat but they said since it's not their version of android I would have to do a factory reset (which wouldn't convert it back to t-mobile stock) in order to sim unlock it, does anyone know how to sim unlock it on the international version with t-mobiles help. I would have thought t-mobile could just do it on their end but I guess not, and I guess they are kind of idiots over there to, because initially they had no idea what i meant when i said i converted it to the international version (heck they still didn't understand that I changed the firmware/ROM) so resetting it wouldn't make it a t-mobile phone again.
 

gunfan

Member
Jan 25, 2010
34
17
Kind of related. I converted my t mobile oneplus 7 pro to the international version and am eligible for a sim unlock. I tried to do it over chat but they said since it's not their version of android I would have to do a factory reset (which wouldn't convert it back to t-mobile stock) in order to sim unlock it, does anyone know how to sim unlock it on the international version with t-mobiles help. I would have thought t-mobile could just do it on their end but I guess not, and I guess they are kind of idiots over there to, because initially they had no idea what i meant when i said i converted it to the international version (heck they still didn't understand that I changed the firmware/ROM) so resetting it wouldn't make it a t-mobile phone again.

Backup everything you might need and revert back to T-Mobile stock firmware with msm tool. Use the provided app by the T- Mobile stock firmware to unlock sim.
 

Tandrias88

Member
Sep 21, 2012
9
3
Doesn't work.. all it did was end up bricking a new device.

Do a search for this "The T-Mobile OnePlus 7 Pro’s bootloader can be unlocked by flashing Android Q" and fallow the instructions. Instruction are on xda.

There is no need to unlock the sim on the T-Mobile phone to unlock the bootloader.

Phone needs to be on the international firmware. This can be done with the patched msm tool. Then downgrade to android development preview 3 using local upgrade on phone. Unlock via fastboot and finally root and install a working rom or do the rollback to android p via local upgrade. Search for the guide and fallow the instructions. It really simple.

Doesn't work.. all it did was end up bricking a new device.