drivesmart 61 patched 4.3 firmware can cause GPS get into bo

drivesmart 61 patched 4.3 firmware can cause GPS get into bootloop
Hi, I just want to share something.
my drivesmart 61 previously has patched 4.1 firmware, everything is fine until the 4.3 version...

I patched the 4.3 and drop into GPS and flashed successfully.then:
1. smartphone link cause gps to shutdown
2. normal road routing can cause gps get into bootloop, UNUSABLE...

i downgraded to 4.1 patched using updater.exe and then upgrade to official untouched 4.3 version, now, everything is working perfect...


if anyone has any idea about this, please let me know..