V1.622 Release Note:
1. Added Text Control function for DAB Label.
2. Fix the bugs of file deleting function and file size calculation function.
3. Improved FW upgrade function. FW data was immediately written to flash memory without checking the parity of the entire data. Changed to check the parity of entire data before writing to flash memory.
V1.621 Release Note:
1. DRM MDI player may decode stream parameters not correctly and does not transmit streams properly.