Bellow Garmin SP 2.14 for JB 4.1.1 devices, not for 4.1.2, even some of you can try it on JB 4.1.2 devices, and post here results.
For devices ≥ 960x540 resolution, CPU requirements (known Qualcomm, Texas Instruments, no other unknown, rooted devices for now.
1. Install APK
2. Put libgmxt.so in /system/lib/ (change permissions like for 1.49)
3. libgarminos.so copy in /data/data/com.garmin.android.apps.gmobilext/lib/
4. For map directory, modify address (libgarminos.so) 0x18DD88C
5. Map, voice file put like for 1.49
All files for testing purposes only, please delete within 24 hours.
All credits to voodoo!