Hi I have many times encountered I got power tripped but Flint didn’t manage to connect to internet (PPPoE) and all devices can’t get DHCP from Flint. I need manually set my computer IP address go into the GUI and clicked on the Modify button and Apply.
Here is how to flash firmware by uboot.
To flash uboot, the difference is to access the http://192.168.1.1/uboot.html page and upload the uboot binary.
Make sure to compare the md5sum value(see filename) of the downloaded uboot binary for integrity.