Xhdata D-808 - Firmware Update !!exclusive!!

While you cannot update the firmware, you can toggle several internal settings that act like feature updates via button combinations while the radio is powered off XHDATA D-808 Put Through Some Paces - John's Tech Blog

There are or custom firmware for the D-808. Unlike the Tecsun PL-330 (which has user-updatable firmware), the D-808’s MCU has not been reverse-engineered. xhdata d-808 firmware update

Featured a white backlight and a Micro-USB charging port. While you cannot update the firmware, you can

If you see 8830 and you are experiencing tuning lag, the update is for you. If you see 8831 or no numbers at all (newer unit), —you likely do not need an update. While you cannot update the firmware