touch /etc/persistent/ct
cat /tmp/system.cfg | grep code
sed -i 's/countrycode=360/countrycode=511/g' /tmp/system.cfg
sed -i 's/countrycode=360/countrycode=511/g' /tmp/running.cfg
cat /tmp/system.cfg | grep code
save
reboot
touch /etc/persistent/ct
cat /tmp/system.cfg | grep code
sed -i 's/countrycode=360/countrycode=511/g' /tmp/system.cfg
sed -i 's/countrycode=360/countrycode=511/g' /tmp/running.cfg
cat /tmp/system.cfg | grep code
save
reboot