
According to information leaked to the network, the Chinese company Applen N Berry, which specializes in the online supply of spare parts and the production of iPhone hardware unlock solutions (the well-known Gevey Turbo SIM), has begun to offer a new algorithm for unlocking any iPhone model, including the iPhone 4 (4.11.08)

The company has reportedly just launched a service for IMEI unlock for mobile devices, which, as the company's engineers promise, will permanently unlock smartphones previously tied to the American operator AT&T.
From the post on the site:
You can guess that this service will not be cheap and will cost the owners of locked smartphones $ 150. What will be required from the latter is to report the IMEI and serial number of the phone.
Unlocking can take from 1 to 2 business days, and as soon as the unlock is over, the customer will receive an email confirmation, and accordingly will be able to check the status of the unlock when syncing iPhone with iTunes.
This is all very good, but something needs to be remembered. First, AT&T will officially unlock the iPhone for free if it is contractually required. It is worth trying this unlock option first if almost two years have passed since the purchase of the smartphone.

Secondly, we cannot confirm the legality of this service, and so far we have no idea about the effectiveness of unlocking in this way. Applen N Berry is fairly well known, but such services need to be wary.
As soon as we make sure that this unlock service really works, we will let you know. At the same time, if you are lucky enough to be the first to try the above unlocking algorithm, we would be grateful for your comments.