P40 Pro unlocked bootloader

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cbouli

Member
Aug 5, 2010
7
4
When the bootloader is unlocked it allows developers to make roms. So, by publishing a working method you will open the P40 world to roms and mods :). (do it, do it, do it, do it !!!)
 
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RobyCipri

New member
Apr 12, 2022
2
7
Congrats, Share your successful method to others first. Then someone will create the twrp or ROMs. Its my opinion/guess
Unfortunately it's not a reliable method, it involves opening up the phone and shorting the test point but if you must know here it is:

requirements: a heat gun, a pry tool, a small + screwdriver and something like a metalic tweezer and a sigma box or other alternatives.
oh you're also gonna need some E7000 glue to put it back together

You open up the phone, remove the battery shield, remove the battery connector, short this point and plug in the usb right after.
After you just press unlock bootloader on your sigma key software

There MAY be better methods but this is all I can offer for now, it's really not worth spending $300 just for a bootloader alone unless you already have the tools.
 

justjey

Senior Member
Unfortunately it's not a reliable method, it involves opening up the phone and shorting the test point but if you must know here it is:

requirements: a heat gun, a pry tool, a small + screwdriver and something like a metalic tweezer and a sigma box or other alternatives.
oh you're also gonna need some E7000 glue to put it back together

You open up the phone, remove the battery shield, remove the battery connector, short this point and plug in the usb right after.
After you just press unlock bootloader on your sigma key software

There MAY be better methods but this is all I can offer for now, it's really not worth spending $300 just for a bootloader alone unless you already have the tools.
basically that the most savage method available to use since huawei not supplying the codes and the cheapest way yet the most dangerous way.
just ditch gms. lol...
 

Superbia

Senior Member
Sep 12, 2009
254
32
Helsinki
Unfortunately it's not a reliable method, it involves opening up the phone and shorting the test point but if you must know here it is:

requirements: a heat gun, a pry tool, a small + screwdriver and something like a metalic tweezer and a sigma box or other alternatives.
oh you're also gonna need some E7000 glue to put it back together

You open up the phone, remove the battery shield, remove the battery connector, short this point and plug in the usb right after.
After you just press unlock bootloader on your sigma key software

There MAY be better methods but this is all I can offer for now, it's really not worth spending $300 just for a bootloader alone unless you already have the tools.
It's not that expensive. 130 bucks for lifetime license. You can unlock it, brick it and fix it all at once.
 

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  • 4
    Congrats, Share your successful method to others first. Then someone will create the twrp or ROMs. Its my opinion/guess
    Unfortunately it's not a reliable method, it involves opening up the phone and shorting the test point but if you must know here it is:

    requirements: a heat gun, a pry tool, a small + screwdriver and something like a metalic tweezer and a sigma box or other alternatives.
    oh you're also gonna need some E7000 glue to put it back together

    You open up the phone, remove the battery shield, remove the battery connector, short this point and plug in the usb right after.
    After you just press unlock bootloader on your sigma key software

    There MAY be better methods but this is all I can offer for now, it's really not worth spending $300 just for a bootloader alone unless you already have the tools.
    3
    So let's say I have a method of unlocking the bootloader and I successfully unlocked it.

    What would I be able to do since there's no official ROM or TWRP made for this model?
    2
    Congrats, Share your successful method to others first. Then someone will create the twrp or ROMs. Its my opinion/guess
    1
    When the bootloader is unlocked it allows developers to make roms. So, by publishing a working method you will open the P40 world to roms and mods :). (do it, do it, do it, do it !!!)