Fringe Division

Appearance

Android ​

Tools ​

APKTool ​

bash
### decompile and rebuild
$ apktool d APK.apk
$ apktool b . --use-aapt2

### signing APK
# https://stackoverflow.com/questions/10930331/how-to-sign-an-already-compiled-apk

$ keytool -genkey -v -keystore my-release-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000

$ jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore my-release-key.keystore my_application.apk alias_name

ADB ​

Backup & Restore ​

bash
adb backup -f wallabag.ab -apk fr.gaulupeau.apps.InThePoche
adb backup -all -f backup.ab -apk -nosystem -obb

adb backup -all -f backup.ab -apk -noshared -system
adb restore backup.ab

Misc ​

bash
# extract appdata
java -jar abe.jar unpack backup.ab DATA.tar

# clear all contacts on Android
adb shell pm clear com.android.providers.contacts

# install all apks
for %f in (*.apk) do adb install "%f"

Fixes ​

Android bluetooth keyboard pairing ​

https://www.reddit.com/r/GooglePixelC/comments/5resoy/keyboard_no_longer_pairing/dk5dr4v/

It sounds dumb and fake, but if you connect the tablet to the keyboard and then hold Left Shift + P + A + I + R at the same time for 2 seconds it fixes the issue and allows you to pair the keyboard! I found the fix posted on Reddit so make sure to thank the user.