If Vodafone refuses to unlock your R217 (e.g., you bought it used, or you are outside your contract period), you need a third-party unlocking service. This is perfectly legal (in most countries) and takes 5 minutes to a few hours.
: Once the settings are saved, restart your Vodafone R217 to apply the changes to your connection. Troubleshooting Content Blocks vodafone r217 unlock
Once your Vodafone R217 is unlocked:
If you purchased your R217 from Vodafone (whether in the UK, Germany, Spain, India, or Australia), it is almost certainly "network-locked." This means the device will only accept a Vodafone SIM card. If you try to insert an O2, EE, T-Mobile, or any non-Vodafone SIM, you will be greeted by a dreaded error message: "SIM Network Unlock PIN" or "Invalid SIM." If Vodafone refuses to unlock your R217 (e