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Unable to extract system image [Infinix X657(MT6580)]

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UnequalB

Member
Sep 10, 2021
7
0
Trying to build a custom TWRP for my phone using this guide, but pulling files from /system is locked behind root perms.
I described my issues with trying to root in a different thread.
Tried just extracting the system image instead but that doesn't seem to work.
Using mkboot on the system image (system-sign) does complete (though unlike the other images, it doesn't show any magic values), and gives a separate system-sign.img in the given directory, but trying to loop mount it fails.
Using abootimg gives the error:
recovery-sign.img: no Android Magic Value recovery-sign.img: not a valid Android Boot Image.
Ext4 unpacker on windows just gives "unknown filesystem"
 

UnequalB

Member
Sep 10, 2021
7
0
Use

Mediatek (MTK) Auto TWRP recovery porter​

to create the TWRP

Look inside here:
The recovery porter completed, though now I have no way of testing the image, using fastboot boot gives
Sending 'boot.img' (22834 KB) FAILED (remote: 'data is too large')

And trying to flash directly gives the same error I described in this thread of

Writing 'recovery' FAILED (remote: 'sparse image size span overflow.')