Geeetech

Could fix it after finding this video: https://www.youtube.com/watch?v=txb0XEjBGP8&t=4s
Folders were all on the internal sd-card, but the bin- and txt-file were not there. After copying those files to the internal sd-card the lcd flashed and the printer was working again.
I think I afterwards found ...

Hello guys
found this thread as it seems that I have produced the same issue.

-tried to upgrade using Easyprint
- upgrade stuck when "Updating LCD"
- firmware before upgrade: 1.0.58 ; uploaded firmware: 1.3.56; firmware shown after upgrade: 1.0.56 ...?
- LCD black; PC seems still be able to ...