Originally Posted by neucoas
Thank you. Does flashing stock Rom replaces those modules ?
If you mean by flashing is fastboot flash etc, then yes. The system.sparesechunk.0-3 files contains your full system partition including the kernel modules. But if you do a cwm backup from your stock system partition before flashing aero and flash that back, that will work too.
Edit: if you just do a backup from /system/lib/modules directory, you should include /system/lib/hw/power.msm8226.so too, hence aero installer also deletes that too.
Usually if you uncertain what a flashable zip do, you can always examine the META-INF/com/google/android/updater-script file. Thats the installer, you can open it with a simple text editor. Usually not too hard to understand, its quite a simple language.