Modification LK.bin to erease Orange state and confirmation boot

Bypass Confirmation Boot 

Tool necessary : Ghidra
Download and install here : https://github.com/NationalSecurityAgency/ghidra

Open file lk.bin in Ghidra

• File -->  new project
• Non-Shared Project --> Next

 

• Give a name to your project --> Next

• File --> import File 
• Import File lk.bin you want patch

• Select Langage --> ARM v6

 

 

• Double click on file

• respond yes to analyzed

• We will get 

• Search -->  for String

• continue with clicking on Search

• type "dm-verity corruption" on filter

• One final will find --> click on line find

• this will give

• Go to the fonction who call the string "dm-verity corruption" with double click on hexa (FUN_00056c40:00056c8e)

• This will give

• We get the fonction we need on right

• The fonction who call string dm-verity is highlighted

• So weWe can understand if the boot not start correctly 

the var  and give       

so the first an green is if boot is corectly and an red if we got an error

We therefore need to modify one of these variables so that it is no longer used in the function.

  or      

In the function, if we click on the desired variable, we move to the line where it is in the file.

Right Click on line --> Patch instruction

Change value of condition

We can do like this

 

• After this we can save file quit 

For export with menu project

Right click on file --> select export 

You can choose Format Original File

 

Find the warning string

https://github.com/R0rt1z2/lkpatcher

https://lkpatcher.r0rt1z2.com/

https://blog.r0rt1z2.com/patch-mediatek-bootloader-images-lk.html