Flint GL-AX1800 Power tripped didn't dial up PPPoE

I can’t perform UBOOT update it always like this (in my previous post) always taking forever.

how my AX1800 i can’t see/enter into the GUI, but it connected to internet. I"m using 192.168.43.xxx, I key in http://192.168.43.1 nothing come out.

I managed to go in into LUCI, but i can’t perform reboot

PLEASE HELP! I try run uboot again but can’t! What should I do!?