GL-AR300M with Firmware v2.27 to v3.xx

Hi I can´t upgrade my 300M to the latest Firmware.
I tried uboot (Version with only 1 Upload Button).
But nothing helped.

Does the router still boot? Can you upgrade in openwrt?

You should download the .img file to use in uboot.


I tried this many times, Uboot works /only with one upload button (is it too old?)
When I want to upload the img nothing happends (ERR_CONNECTION_RESET) With Chrome, Internet Explorer and Edge.

It is not old. It is new.

The error seems command. Not a browser issue. Maybe try another Ethernet adapter.