turn on is now fixed
Small installation instructions directly from the Linux LE
Download u-boot.bin and put it in the root directory ( /flasch ).
Make an ssh connection and enter the following commands one after the other:
1. Permission to write to this directory
2. We make a backup copy of the android system -> recovery.img + dtb.img + bootloader (u-boot)
3.Emptying the old bootloader from emmc and writing a new one
4. full system reboot
EDIT: I ask you to wait a little while installing the bootloader, I'll write another guide to installing it.