Problem after lfash

[romandie]

##Hello, I succeeded in flashing my dreamer, my screen showed upload files success, the program completed the transfer, but when I restart my printer, the screen remains on the flashforge logo and nothing happens .
How to revert to original firmware? Is this normal, or am I mistaken somewhere. Thank you for your help (excuse for my english, i'm french)

[romandie]

Well after a lot of tests I managed to use the latest prebuilt firmware, all the menus work but as soon as I validate a temperature, or other, the screen turns off.. Thank you (and great job)