nullmastermind · May 1, 2021 10:06 · Oct 6, 2019
diff --git a/android-backup-apk-and-datas.md b/android-backup-apk-and-datas.md
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+# Backup android app, data included, no root needed, with adb
+
+`adb` is the Android CLI tool with which you can interact with your android device, from your PC
+
+You must enable developer mode (tap 7 times on the build version in parameters) and install adb on your PC.
+
+## Fetch application APK
+
+To get the list of your installed applications:
+
+```
+adb shell pm list packages -f -3
+```
+
+If you want to fetch all apk of your installed apps:
+
+```
+for APP in $(adb shell pm list packages -3 -f)
+do
+  adb pull $( echo ${APP} | sed "s/^package://" | sed "s/base.apk=/base.apk /").apk
+done
+```
+
+To fetch only one application, based of listed packages results:
+
+```
+adb pull /data/app/org.fedorahosted.freeotp-Rbf2NWw6F-SqSKD7fZ_voQ==/base.apk freeotp.apk
+```
+
+## Backup applications datas
+
+To backup one application, with its apk:
+
+```
+adb backup -f freeotp.adb -apk org.fedorahosted.freeotp
+```
+
+To backup all datas at once:
+
+```
+adb backup -f all -all -apk -nosystem
+```
+
+To backup all datas in separated files:
+
+```
+for APP in $(adb shell pm list packages -3)
+do
+  APP=$( echo ${APP} | sed "s/^package://")
+  adb backup -f ${APP}.backup ${APP}
+done
+```
+
+## Restore Applications
+
+First, you have to install the saved apk with adb:
+
+```
+adb install application.apk
+```
+
+Then restore the datas:
+
+```
+adb restore application.backup
+```
+
+## Extract content of adb backup file
+
+
+You will need the `zlib-flate` binary. You will able to use it by installing the `qpdf` package.
+
+```
+apt install qpdf
+```
+
+Then, to extract your application backup:
+
+```
+dd if=freeotp.adb bs=24 skip=1 | zlib-flate -uncompress | tar xf -
+```
+
+## Miscellaneous: remove non-wanted applications
+
+Sometimes, you have already installed (but non wanted) apps when you buy an Android Smartphone. And you can't uninstall these apps. So Bad. And some pre-installed app are not present on PlayStore. WTF.
+
+You can remove them with this command, and root is not needed:
+
+```
+adb shell pm uninstall --user 0 non.wanted.app
+```
+
+You can first disable them, then when you are sure, you can remove them.
+
+To list disabled apps:
+
+```
+adb shell pm list packages -d
+```
+
+Example:
+
+```
+# Google Chrome
+adb shell pm uninstall --user 0 com.android.chrome
+# Gmail
+adb shell pm uninstall --user 0 com.google.android.gm
+# Google Play Films et Séries
+adb shell pm uninstall --user 0 com.google.android.videos
+# Youtube
+adb shell pm uninstall --user 0 com.google.android.youtube
+# Google Play Music
+adb shell pm uninstall --user 0 com.google.android.music
+# Google Hangouts
+adb shell pm uninstall --user 0 com.google.android.talk
+# Google Keep
+adb shell pm uninstall --user 0 com.google.android.keep
+# Google Drive
+adb shell pm uninstall --user 0 com.google.android.apps.docs
+# Google Photos
+adb shell pm uninstall --user 0 com.google.android.apps.photos
+# Google Cloud Print
+adb shell pm uninstall --user 0 com.google.android.apps.cloudprint
+# Google Actualités et météos
+adb shell pm uninstall --user 0 com.google.android.apps.genie.geniewidget
+# Application Google
+adb shell pm uninstall --user 0 com.google.android.googlequicksearchbox
+```
+
+## Resources
+
+https://stackoverflow.com/questions/4032960/how-do-i-get-an-apk-file-from-an-android-device
+https://androidquest.wordpress.com/2014/09/18/backup-applications-on-android-phone-with-adb/
+https://stackoverflow.com/questions/34482042/adb-backup-does-not-work
+https://stackoverflow.com/questions/53634246/android-get-all-installed-packages-using-adb
+https://www.dadall.info/article657/nettoyer-android
+https://etienne.depar.is/a-ecrit/Desinstaller-des-applications-systemes-d-android/index.html
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