Hi,
Regarding your issue, I have to say, the factory told us that it's not allow to install the firmware/mcu from other place.
Normally we also don't suggest our clients do this, the reason is just to prevent the problem that you had happening, it could bring other problem and even break the system.
I will send both the original firmware and mcu file to you, just hope you can solve the problem.
Firmware:
https://mega.nz/#!UQsD1DiC!VolW1UbNkRHq ... yCrhn_Sp8sMCU:
https://mega.nz/#!QYFw2biD!rQ8YgweeQZDP ... 7ZUHSS-whURegards