How do I downgrade from 5.1.5.0G to 4.2.8.2I Mx 4

3575

3

2016-06-09 15:15

Hello Everyone,
I've recently tried to downgrade my version from 5.1.5.0G to 4.2.8.2I.
Everytime that I tried to run the update I get an error message "Firmware Corrupt".
Does anyone here know how to solve it?
Thank you!