Software File: GSmart Sierra S1_V1.39.14
Caution: Please make sure to backup your data before updating ROM.
After ROM is downloaded and decompressed, to copy GBC_update.zip and put
under the sub-directory of SD card, and then to continue for ROM update
according to the steps in Android SD card download.
Description: The ROM update is only applied for GSmart Sierra S1
1. Fix Turkish SMS characters calculation issue
2. Fix 911 emergency code dialing out issue