Converting GL.iNet MT3000 (Beryl AX) from CN to Global

[shi05275]

Maybe you can try this .
GL-MT2500

echo 0 > /sys/block/mmcblk0boot1/force_ro
echo "US" |dd of=/dev/mmcblk0boot1 bs=1 seek=136
sync
reboot

GL-MT3000

echo "US" |dd of=/dev/mtdblock3 bs=1 seek=136
sync
reboot