I have a problem where the repacked system.img does not work.
My target device is: DOOGEE X5pro, which uses MT6735M chip.
I am using this custom ROM.
The original files from this custom ROM works fine with the device.
I wanted to change something in the system.img and the following is what I did.
$ simg2img system.img system.raw $ mkdir tempsys $ sudo mount -t ext4 -o loop system.raw tempsys $ cd tempsys
Here I made one change. I didn't like the camera shutter sound so I simply deleted the 'camer_shutter.ogg' file in
$ cd .. $ tune2fs -l system.raw
here I check that "Block count : 390111", "Block size: 4096". I multiplied these two values and got "1,597,894,656".
$ sudo make_ext4 -a system -l 1597894656 -s sys3.img tempsys
BTW the permission of the sys3.img is as below:
$ ls -l -rw-r--r-- 1 chadrick chadrick 1327287648 2월 18 16:09 sys3.img
I'm not sure if the permission of the system.img file matters before flashing it to the phone.
I shall proceed just as it is.
After flashing it, it is stuck at the boot logo. I guess while the device succeeded upto loading the 'boot.img' but it failed to properly deal with 'system.img'.
Apparently, could someone point out some things that I may have missed?
BTW, I did the same repack operation WITHOUT modifying any contents in with system.raw file. The repacked system.img still didn't work.