Avoid "driver download" sites that ask for a credit card or push fake PC cleaners. The official driver is always free.
pnputil /add-driver "C:\Drivers\K4201z\*.inf" /install Vodafone Mobile Broadband K4201-z Driver Download
Check Vodafone’s community forums or leave a comment below with your operating system version and exact error message. Avoid "driver download" sites that ask for a
A: Yes. The K4201-z is factory unlocked in most regions. However, you may need to manually enter the new provider's APN (e.g., broadband for EE UK, fast.t-mobile.com for T-Mobile US). broadband for EE UK