As currently no AsteroidOS watches have direct access to the Internet, no OTA upgrades are offered. This page documents upgrading AsteroidOS.
The easiest way is to reflash the entire OS following the usual installation instructions.
If you don't want to lose your personal data, and prefer upgrading Asteroid without reflashing it, you can share your Internet connection from a PC to the watch and use AsteroidOS' package manager: opkg
Configure a NAT on your computer (Note: Replace eth0 with the name of the interface that connects your computer to the Internet) with:
echo 1 > /proc/sys/net/ipv4/ip_forward iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
Configure a default gateway and DNS on the watch with the following commands ran via SSH:
route add default gw 192.168.2.1 echo "nameserver 126.96.36.199" >> /etc/resolv.conf
Then upgrade your AsteroidOS with opkg, using the standard commands:
opkg update opkg upgrade