If you have recently purchased a Vodafone R219h (manufactured by Huawei) and discovered you cannot use your local SIM card while traveling, you are not alone. The dreaded "SIM Lock" or "Invalid SIM" message is the bane of any digital nomad.
Under EU and UK law, if you have finished your contract or purchased the device outright, the carrier must unlock it for free. unlock vodafone r219h
A: Restart the device. You should see the new carrier name on the LCD screen. If you don't, perform a factory reset via a paperclip in the reset hole (next to the USB port). If you have recently purchased a Vodafone R219h