GL-AR750S-EXT Slate upgrade guide
Uboot guide here
- v3.104(Uboot img) here
- v.3.105 (sysupgrade tar through web gui local upgrade) here
- v.3.212 (web gui system auto check upgrade) http://192.168.8.1
- latest 3.215 beta 2 (local upgrade) source
GL-AR750S-EXT Slate upgrade guide
Uboot guide here