hi guyz i have an iphone 4 gsm ios 6.1.3 baseband 4.12.05 so i have requested a factory unlock using orange in the UK so they sent me an unlock email saying i must make sure device is up-to-date before proceeding with the instructions so my questions is due to the problems associated with ios 7 on iphone 4 should i still update or continue with the steps which start with restoring the iphone using itunes then the phone will be unlocked by apple. is it really that bad updating to ios 7 on iphone 4