Originally Posted by
msp3
None of them. Because if they're not scams, it's scumbags on fleabay selling access to bribed carrier employees who make illicit unlock requests to Apple or via the carrier's unlocking app (i.e. T-Mobile)
For an S7 this is not true, Apple yes only way is via apple but the others are good, I use trustpilot to work out one that is reliable and used one to unlock both my Note 3 and 4, Average cost is about £20 GBP i believe