I didn’t recovery the Andoird yet, I will do it now.
But there is something strange, the dtb.img file different hash after reboot:
# md5sum /flash/dtb.img
a9a4633c78fab6ec522cc7e51498ad77 /flash/dtb.img
# mount -o remount,rw /flash
# wget -O /flash/dtb.img "https://discourse.coreelec.org/uploads/short-url/j83hKWRQD6Og4LszyJoZ8uLVubu.dtb"
Connecting to discourse.coreelec.org (116.203.16.118:443)
saving to '/flash/dtb.img'
dtb.img 100% |**********************************************************************************************************************************************| 70563 0:00:00 ETA
'/flash/dtb.img' saved
# sync
# mount -o remount,ro /flash
# md5sum /flash/dtb.img
7d8856abc71549901c601f5f1b20df40 /flash/dtb.img
# reboot
# md5sum /flash/dtb.img
a9a4633c78fab6ec522cc7e51498ad77 /flash/dtb.img
I am going to recovery the Android now and use the dtb you provided (7d8856abc71549901c601f5f1b20df40).
Regards.