modifying system APK's for the atrix?
hey all, i'm starting to get into modding my atrix and i have some questions about modifying the system APK's. i've already deodexed /system/app and /system/framework with xUltimate. i'm using APK Manager in linux to decompile the APK's that i want to mod.
the problem comes when i compile the new APK and upload it to /system/app. the stock APK's are signed seemingly with a specific signature that the phone is looking for. APK Manager says to not sign the APK's that you intend to install to /system, but if you do choose to sign it, the certs that are used are not what the atrix is expecting. when i look for errors in logcat, its indicating that the package changed and that its trying to look for the matching cert within /data/secure.
how does one modify these system APK's, and keep the original signature intact? it looks like the manifest contains a sha1-digest signature of each file, which makes just copying/pasting the META-INF into the new APK not an option.
thanks in advance!
Atrix 4G - rooted, locked
Asus Nexus 7 - rooted, locked