Firmware & Downloads
1. For Micro SD card over 32GB, if it is not FAT file system(exFAT, NTFS), it will remind the user to "Format SD card" to use it.
2. Please rename the file to be "Vmic_R.bin" or "VRM1_R.bin" for upgrade
3. Details steps please follow the user manual.
4. If upgrade failed, just take out the battery and power on again. And do the upgrade again.