valeridx
I am sorry to say there is no firmware that would fix your problem, you are right to think it will only cause more damage to your MP4 and would probably kill your player all together.
Operating the radio takes practice, but it should be possible to save a station, but it is very tricky to explain, best to play with the controls using trial and error till you get the hang of it.
Did you try to set your radio to a different FM region?, the default is chinese, go into the settings menu and change the region to europe, should be OK for Bulgaria.
The player uses the earphone cable as an antenna so these need to be plugged in all the time for the radio to get a signal.
Lastly the Fm radio is these players is not very sensitive so don't expect good reception except for strong stations.
Hope this works for you.
|