OEM unlock option is greyed out, How enable it ?

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Purav786

Member
Dec 2, 2013
13
0
I have recently purchased a Pixel 4 XL, in order to root it I have enabled USB debugging however the option of OEM unlock is greyed out, that means I won't be able to unlock the bootloader.
I want to root my phone in order to install Substratum themes, Please help me and let me know how I can enable OEM unlock option on my phone.
I have updated my Pixel 4 XL with latest MAY20 system update.
 

Caltinpla

Senior Member
Sep 16, 2014
1,250
454
Garden State
I have recently purchased a Pixel 4 XL, in order to root it I have enabled USB debugging however the option of OEM unlock is greyed out, that means I won't be able to unlock the bootloader.
I want to root my phone in order to install Substratum themes, Please help me and let me know how I can enable OEM unlock option on my phone.
I have updated my Pixel 4 XL with latest MAY20 system update.

https://forum.xda-developers.com/pixel-4-xl/help/how-to-sim-unlock-pixel-4xl-t-mobile-t4081235
 

Purav786

Member
Dec 2, 2013
13
0
My phone is not network locked phone, I have a Sim unlocked phone.... Only issue is Developer option is greyed out and I want to enable it.
 
It really depends on your carrier. If you bought it directly from Google (unlocked or Google Fi), it should be available without contacting anyone. I've heard that it might not be available until it has been activated for a few days with service. Otherwise, I've heard that you may need to fully wipe all user data before it becomes available. The process of OEM unlocking will wipe all user data as well, so you must be prepared for that eventuality.

If you did not get it from Google, the waters become murky and your success will vary.
 

Homeboy76

Senior Member
Aug 24, 2012
3,293
1,825
Google Pixel XL
I have recently purchased a Pixel 4 XL, in order to root it I have enabled USB debugging however the option of OEM unlock is greyed out, that means I won't be able to unlock the bootloader.
I want to root my phone in order to install Substratum themes, Please help me and let me know how I can enable OEM unlock option on my phone.
I have updated my Pixel 4 XL with latest MAY20 system update.
If you bought a Pixel 4 XL with a unlockable bootloader, use this Guide to root.
Most Pixel 4 XL that are purchased from Carriers with the exception of Google Fi are not bootloader unlockable.
 
Last edited:

v12xke

Senior Member
Dec 5, 2010
2,125
675
The Woodlands, TX
My phone is not network locked phone, I have a Sim unlocked phone.... Only issue is Developer option is greyed out and I want to enable it.
You aren't providing much useful information to solve your problem in your OP. Post a screenshot of your bootloader page, and what are the first two digits of your IMEI's. If you have already 100% WIPED your phone, skipped through setup and gone straight to dev settings with an active Wi-FI signal and get a greyed out OEM unlock , you will likely never succeed because you inadvertently purchased a bootloader locked phone. SIM unlocked definitely does not equal BL unlockable.
 
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Purav786

Member
Dec 2, 2013
13
0
You aren't providing much useful information to solve your problem in your OP. Post a screenshot of your bootloader page, and what are the first two digits of your IMEI's. If you have already 100% WIPED your phone, skipped through setup and gone straight to dev settings with an active Wi-FI signal and get a greyed out OEM unlock , you will likely never succeed because you inadvertently purchased a bootloader locked phone. SIM unlocked definitely does not equal BL unlockable.
So that means my phone is bootloader locked phone and there is no way to unlock it...
 

v12xke

Senior Member
Dec 5, 2010
2,125
675
The Woodlands, TX
So that means my phone is bootloader locked phone and there is no way to unlock it...
Remove SIM, factory reset from recovery, initiate setup enabling Wi-Fi, proceed to dev settings and check "Allow OEM unlocking". If you have completely wiped the phone and OEM unlocking is still greyed out, then your phone is bootloader locked and there is no workaround.
 

Letvamijeuglavi

New member
Sep 11, 2020
4
0
I downgraded my p40 lite to lowest version of emui...

which is 10.0.1.108 and oem unlock option appeared but its grayed out and I took advice from the guy in this thread that said call them and tell them you are developer and you need it to install android 11 and they were like oh ok then will figure this out and give you a call hahahahhaahahahhahah awesome dude it worked

---------- Post added at 02:39 PM ---------- Previous post was at 02:36 PM ----------

I saw there is a tool created by skyemie on github that uses bruteforce method to retrieve the unlock code so if they fix my oem grayed option then I will try that and give you all update if everything worked.
 

mostyle

Senior Member
Nov 13, 2006
491
236
Langley, SC
Just a FWIW: I bought two phones from Google directly and returned both since OEM was greyed out on both. Third try I purchased one off Swappa and it worked. Something to do with the IMEI... Search for posts started by me.. It's a looooong thread.
 
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CoNsTaR

Member
Mar 15, 2018
30
33
North York
If you got your pixel from Verizon, just call them and say that you're a developer and you need OEM unlocking. They'll need your IMEI and Verizon account number tho to check that you're the owner. If you got it second hand you may have to contact the person you bought it from.
 

V0latyle

Forum Moderator
Staff member
If you got your pixel from Verizon, just call them and say that you're a developer and you need OEM unlocking. They'll need your IMEI and Verizon account number tho to check that you're the owner. If you got it second hand you may have to contact the person you bought it from.
Do you have a source for this? The only official answer I've seen is that Verizon has no process in place to enable OEM unlocking. It's actually baked into the ROM.
 

V0latyle

Forum Moderator
Staff member
I did it. I saw someone saying that calling T-Mobile does the job so I just decided to call Verizon too and it worked.
Well, that's interesting. What exactly were the circumstances, and how did you get unlocked? Such as, were you using the phone on the VZW network? Did they push a software update or something?
 

CoNsTaR

Member
Mar 15, 2018
30
33
North York
Well, that's interesting. What exactly were the circumstances, and how did you get unlocked? Such as, were you using the phone on the VZW network? Did they push a software update or something?
From what I know, by the moment you install a Verizon SIM on your pixel, it becomes a Verizon phone. How they do this is that they'll add your phone's IMEI to their database, and until it's deleted from their database your phone will be a Verizon phone. You can check that by trying adding an eSIM, if it says anything about Verizon at the QR code step, you know it's still bound to Verizon.
I think the mechanism of checking if the phone is bound to any carrier is baked in the ROM, but not the information itself. I do see people saying that it needs time for the records to be propagated after they've removed you from their database, but YMMV.

Edit:
No, I wasn't on the VZW network.
 

V0latyle

Forum Moderator
Staff member
From what I know, by the moment you install a Verizon SIM on your pixel, it becomes a Verizon phone. How they do this is that they'll add your phone's IMEI to their database, and until it's deleted from their database your phone will be a Verizon phone. You can check that by trying adding an eSIM, if it says anything about Verizon at the QR code step, you know it's still bound to Verizon.
I think the mechanism of checking if the phone is bound to any carrier is baked in the ROM, but not the information itself. I do see people saying that it needs time for the records to be propagated after they've removed you from their database, but YMMV.

Edit:
No, I wasn't on the VZW network.
Right, and I'm asking exactly how you did it.
 

bigmatt503

Senior Member
I've called Verizon 6 times and talked to several reps and no idea what I'm talking about. I was even sent to 2nd tier and nothing. The 2nd tier rep said he's worked at vzw for 8 years and has never seen or heard of this happening. So I find this whole thing hard to believe.
 

CoNsTaR

Member
Mar 15, 2018
30
33
North York
I am just providing my experience, and maybe someone will benefit from it. I came across this thread when I did my research so I thought I should share it here too.

If more details may help, I called them with the number 800-922-0204, on Oct 27 9:48 AM, the time I spent on the call was 36m4s (30m or so was waiting on the line), and I was on Fido network (Canadian).

When the system asked me about my area code or something like that before they connect me with a human, I both entered # key, and also chose something like I want to be a Verizon customer.

That's really all what I did, and I got it done on the first try. This was my first time calling Verizon, so I don't know much about 2nd tier or what not, but that's all I wanted to share here.
 

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    My phone is not network locked phone, I have a Sim unlocked phone.... Only issue is Developer option is greyed out and I want to enable it.
    You aren't providing much useful information to solve your problem in your OP. Post a screenshot of your bootloader page, and what are the first two digits of your IMEI's. If you have already 100% WIPED your phone, skipped through setup and gone straight to dev settings with an active Wi-FI signal and get a greyed out OEM unlock , you will likely never succeed because you inadvertently purchased a bootloader locked phone. SIM unlocked definitely does not equal BL unlockable.
    1
    Just a FWIW: I bought two phones from Google directly and returned both since OEM was greyed out on both. Third try I purchased one off Swappa and it worked. Something to do with the IMEI... Search for posts started by me.. It's a looooong thread.