How can I force the installation of a programme, specifically "Simple Sidebar-1.2" in place of "Simple Sidebar-1.3", in android 4.3, on a Samsung Galaxy GT-I9300. When I try to install it now it has a long read-in and then just stops saying that it is not installed.
You can't "downgrade" an installed app to an older version. First you need to uninstall the app from your device, and only after that can you install the older version from the APK.
If you've got ADB ready (see: adb and its tag-wiki for details), there are multiple ways to achieve it. My examples assume you've got the
.apk file on your computer, and are operating from the very same directory it resides in. Further, let's call the file
# trying to downgrade directly: adb install -r foobar.apk # if that fails, we've got to uninstall the app first. # Let's try to do so without losing its data: adb uninstall -k com.foobar adb install -r foobar.apk
If the latter still fails, you might have to say "goodbye" to your data, and run
uninstall without the
-k ("keep data") option. You could also try backing up data first, and restore it after a successful install (
adb backup -f foobar.ab -noapk com.foobar and later
adb restore foobar.ab).