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T-Mobile Bootloader/Sim unlock Bypass..

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JhinCuatro

Senior Member
Mar 2, 2017
250
65
I'm shocked there is absolutely no discussion on the new method that just launced. Due to the lack of activity, it's not made clear if the bootloader unlock method unlocks the sim card as well.. I don't even know if the method is worth taking or has any significant issues in the longrun..
 

xeebot

Senior Member
Mar 26, 2010
140
17
Los Angeles
If you're talking about the q upgrade to get bootloader unlocked. I'm kind of surprised too.

I unlocked my bootloader via that method and it did not sim unlock my op7p. I dropped an at&t sim and it told me the phone is network locked and to use the Tmo unlock app.
 

xeebot

Senior Member
Mar 26, 2010
140
17
Los Angeles
Any method of getting it Sim unlocked if you are outside of the US?

None that I know of if you buy a network locked version like the GM1915 from TMobile. Have to go through the carrier for SIM unlock on those.

The guy that started the tmo to international conversion thread said it's possible, but complicated and would be release later. Hope they get it out soon.
 

LexApp

Senior Member
Oct 20, 2013
112
20
Owings Mill
The Q unlocks the bootloader but the GSM SIM is still locked. I tried this command and got this response

./fastboot erase modemst2
Erasing 'modemst2' FAILED (remote: 'Erase is not allowed for Critical Partitions
')
./fastboot reboot
Rebooting OKAY [ 0.002s]

Would be grateful to find someone with useful info on how to sim unlock this phone.

Thanks
 

dami00976

Senior Member
Dec 27, 2008
347
59
If you have t-mobile version there are 2 guys on guide thread that unlock the phone through the t-mobile app. If your using t-mobile outside the carrier you will have to pay to a 3er party service eBay haves them
 

LexApp

Senior Member
Oct 20, 2013
112
20
Owings Mill
Do you know of any 3rd party service that can do this? Please let me know, thanks

---------- Post added at 07:35 AM ---------- Previous post was at 07:35 AM ----------

If you have t-mobile version there are 2 guys on guide thread that unlock the phone through the t-mobile app. If your using t-mobile outside the carrier you will have to pay to a 3er party service eBay haves them

Thanks but do you know of any 3rd party service that can do this? Please let me know, thanks
 
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Reactions: juanocastro813
Mar 28, 2013
5
0
Same question. I bought one on eBay and I haven't been able to unlock it for free. Im outside US so I'm not able to activate phone on T-Mobile also.


Do you know of any 3rd party service that can do this? Please let me know, thanks

---------- Post added at 07:35 AM ---------- Previous post was at 07:35 AM ----------



Thanks but do you know of any 3rd party service that can do this? Please let me know, thanks
 
Mar 28, 2013
5
0
Have you tried this first?

fastboot flashing unlock

then

fastboot flashing unlock_critical

The Q unlocks the bootloader but the GSM SIM is still locked. I tried this command and got this response

./fastboot erase modemst2
Erasing 'modemst2' FAILED (remote: 'Erase is not allowed for Critical Partitions
')
./fastboot reboot
Rebooting OKAY [ 0.002s]

Would be grateful to find someone with useful info on how to sim unlock this phone.

Thanks
 

flyhotstuff

Member
May 20, 2012
36
0
I'm in the same boat

---------- Post added at 09:33 PM ---------- Previous post was at 09:32 PM ----------

I'm in the same boat. Waiting for a solution outside the USA. Remote unlock etc
 

Moses M

New member
May 28, 2015
1
1
Berkeley
i think this command is for unlocking your bootloader

No, these commands are for the dangerous ability to flash & erase criticals like modem.

The code to unlock BL is:

fastboot oem unlock

(Erases all data)

---------- Post added at 08:08 AM ---------- Previous post was at 07:53 AM ----------

I dunno if BL can be downgraded bc OP7P starts on android 9 rom which has security patches which prevent flashing to modem.

Found this thread for a different phone which has the same issue you guys are having:

https://forum.xda-developers.com/essential-phone/help/failed-remote-flashing-allowed-modem-t3924591

If BL can be modified, the perhaps you can erase/flash Modemst1 & 2. If anyone knows of someone who tinkers with BL, bring them here :fingers-crossed:
 
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Lussardi

Senior Member
Mar 24, 2013
236
68
San Salvador
No, these commands are for the dangerous ability to flash & erase criticals like modem.

The code to unlock BL is:

fastboot oem unlock

(Erases all data)

---------- Post added at 08:08 AM ---------- Previous post was at 07:53 AM ----------

I dunno if BL can be downgraded bc OP7P starts on android 9 rom which has security patches which prevent flashing to modem.

Found this thread for a different phone which has the same issue you guys are having:

https://forum.xda-developers.com/essential-phone/help/failed-remote-flashing-allowed-modem-t3924591

If BL can be modified, the perhaps you can erase/flash Modemst1 & 2. If anyone knows of someone who tinkers with BL, bring them here :fingers-crossed:

any advance whith this?
 

ccamacho83

New member
Oct 19, 2008
1
0
so I have the following Scenario, I was able to use the temporary unlock on the Tmobile app, I put another sim and it works, I have read this is only for a month, but if I switch to the international version will the unlock stays? have anybpody tried that before?
 

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