SOLUTION TO YOUR PROBLEM:
For Gemei A330 Fashion "时尚版" (without wireless),
You need to rename the firmware file to A330E.HXF (i.e. add a "E"), in order for the file to be detected.
former owner of a dingoo a320, I just bought a gemei a330 and was trying to update the firmware from 1 to 1.1, procedure extra-easy.
I put the A330.HXF in the root folder of my A330, reboot, try pushing start-select... But nothing happens.
I have tried the different firmware builds, downloaded from different sources, i have tried formatting the memory, nothing more...
As I read before on another subject, it seems that you need to put your files from a windows computer (that is what I am doing), not by the SD card or what.
Another thing, the gemei a330 is the *fashion* model (same model without wireless capability).
In this sense, I even tried renaming a330.hxf to a330 fashion.hxf or even A330 时尚版 .HXF (how desperate... haha)
Other detail, I don't have any SD card plugged in. Do I need to plug one so that I can update from the internal memory ?!?!?
Has anybody of you encountered such problem?
Do anybody use the *fashion* model also? No update problem?
Thank you in advance for your answer...