Hello, I would like to downgrade the firmware from 6.4.62 latest beta to latest official 6.4.42. Reason: since I upgraded, I have playback issues, picture disappears for couple of seconds and the comes back randomly. I am not 100% sure it is Zidoo, but I am going back to the last known working configuration. However, it doesn't work. Tried following this: How to flash Z9X (zidoo.tv) Zidoo Recovery Images – McBluna.net (downloaded the non-google image) After inserting the USB on the right side, the only thing I see is Zidoo logo on the screen and not much else. The display shows HELLO. The upgrade procedure should begin, but nothing happens. I have also made sure that the file is on a pre-formatted FAT32 stick and I renamed it to install.img. I have waited more than 10 minutes for it to begin. I also tried an alternative USB flash drive. Any ideas? Thank you