But how much input did the old Dingoo Digital staff (ie the people now at Dingoo Tech) actually have into the design of the hardware and OS of the A320? Wasn't that a collaboration with Gemei too? It was even announced before release as the Gemei A320 (AFAIK), and it's internally nearly identical to the older Gemei X760, so it looks to me like it's more Gemei than Dingoo.
Things like adding languages and fixing the button bug would be fairly trivial assuming Dingoo Tech have the OS source code, but they've yet to prove themselves with any more major changes, or any new/updated emulators. Even if all the old Dingoo Digital staff are now with Dingoo Tech, that wouldn't mean a thing if all the talent is at Gemei.