The iOS 6.0.1 update which took place quite a few months ago caused quite a storm due to a number of problems. The most irritating of these was the iPhone 4 baseband 4.12.02 getting locked from the baseband and a solution was urgently needed. Well, there is no need to look any further as all your problems will be solved right here!
Before continuing any further, it is important to know that there are two different methods to unlock and both are quite different. The first one is based on software unlocks while the second one is based on the IMEI unlock solution.
The Free Method: This second solution although being completely free of cost comes with another complication as it has certain prerequisites. It is only available to owners of the iPhone 4 that has been unlocked with a SAM unlock tool and then saved the activation keys. The time frame during which this was possible was only two days and because of this the number of people who meet these requirements are understandably few.
IMEI Unlock method This solution is widely regarded as being the most useful way to unlocking baseband because of several factors. The most prominent among these is the fact that it is permanent thanks to the IMEI of the handset which will be white listed by Apple’s database. Also, through this method it is extremely simple to update the latest firmware and basebands. All kinds of anxieties or worries are nipped in the bud through this solution and to put the icing on the cake, if the handset is stolen or blacklisted it is still possible to perform an unlocking.
These two methods should be more than enough to help exasperated iPhone 4 baseband 4.12.02 owners in unlocking their phones and are guaranteed to provide results. Please express your thoughts in the comments section!