How to use a Japanese iPhone 4S in the UK?
I'm taking my Japanese iPhone 4S to the UK. I'm only going to be there for 6 months so I don't want to have to buy a new phone.It's currently locked to the network provider Softbank. I'm aware of many jailbreak solutions to unlock it myself. Will unlocking it allow me to use a UK microSIM?
You're pretty much screwed if it's Softbank. They won't unlock phones and I don't think any unlocking service can do Softbank either.
Even if it was unlocked there's the issue of data bands. Softbank uses different bands from other Japanese providers so you probably wouldn't be able to get any data.
You just need to get the phone factory unlocked and use the phone in UK without being on roaming for 6 months. If the phone is locked to Softbank, jailbreaking and unlocking won't work. You need to get the phone factory unlocked from the network to get the phone working for all services. If you need help with getting the phone unlocked, mail me for references.
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