Thread: Install Garmin Street Pilot v.2.16 Samsung Galaxy Android 4.1.2 Detailed Instructions&Pics

The answer is not really straightforward, will depend on a few things.

Modifying the libgarminos is sufficient to get it running. However, on some phones, the libgarminos file from the apk will replace the modified libgarminos upon reboot. Then you need to replace the libgarminos file manually after each reboot for it to work. If your phone does not replace the libgarminos file at reboot, you can use any apk and place the modified libgarminos in the correct path. But if your phone does not work that way and if replacing the file on every reboot is too much of a hassle, you have two further options

1) Use a blank apk, ie an apk whcih does not have the libgarminos lib file included. Then you just need to place the modified libgarminos file in the correct path and nothing gets overwritten on reboot.
2) Or you can decompile the apk, and make the necessary changes in the libgarminos file and recompile it with the modified file.