I need to unlock my iPhone SE (which is currently locked to the O2 network), but the website says it can take up to 72 hours to complete.
I received the phone from a family member who still uses the sim, and so I was wondering if, I got them to use their sim to unlock the iPhone for free on the O2 website, would they need to leave it in until the process has finished, or could they take it out and carry on using it in their new phone?
Read more: Do I need to keep to SIM card in my phone until the unlocking process is completed? (O2)?