Better brands (Atoto, T'Eyes) now offer OTA. For others, you still need manual USB updates.
Search Facebook for "Dasaita Owners Club" or "Joying Head Unit Fans." Look in the section of the group. Group admins often vet downloads. chinese android head unit firmware download
If your unit doesn't boot to Android:
Ensure the firmware matches your screen resolution (usually 1024x600 or 1280x720), or your touch screen may become unaligned. Better brands (Atoto, T'Eyes) now offer OTA
When the screen freezes, the Bluetooth drops, or the boot logo gets stuck in a loop, the solution isn't to buy a new unit. It is to perform a . Better brands (Atoto