A little more about unlocking......

Recently, I have had quite a few people ask more in-depth questions about unlocks. I will try to address these in this post. First, let's start with some definitions;

1. APN (Access Point Name)-These are settings used by carriers to enable MMS (picture messaging), and data (internet). These can not be edited on an iPhone without a jailbreak. You CAN set profiles, for instance, using unlockit, but those profiles only enable data, not MMS.

2. Baseband (Modem Firmware), located under Settings>General>About>Modem Firmware-This is the firmware on your baseband chip. It enables you to acquire the carriers transmitting frequency..i.e...900 MHz, 1700 MHz, etc. Stock iPhone basebands DO NOT acquire the T-Mobile frequencies. They must be flashed to another firmware version, or be exploited if they are a version that can be done so. On an iPhone 3G(s), manufacture date 134 and below, you can flash this baseband to the iPad baseband (6.15.00), which can be exploited to detect the T-Mobile baseband. The problem is, that this baseband does not support GPS. That is why after upgrading a baseband to 6.15.00, I downgrade it to 5.13.04, which can also be exploited, and DOES support GPS. Only the iPhone 3G(s), mfg date 134 or below, iPhone 3G, or iPhone 2G can be exploited basebandwise to enable T-Mobile. The iPhone 4 1.59.00 baseband can also be exploited, but those are more rare than a four dollar bill, and, as of now, there is no way to flash the iPhone 4 baseband down to the 1.59.00 baseband.

The unlocks that I do are hacks, NOT factory unlocks, and it is 100The people that do these factory unlocks are doing it ILLEGALLY, using their AT&T employee status to access Apple's servers to submit your IMEI.

There is also the issue of the Gevey Sim unlock. What this is is a chip that is placed underneath your SIM card (SIM stands for Service Identification Module). This manipulates your baseband chip by hardware, not software, and is VERY dangerous to your baseband chip, not to mention, that they are VERY hard to set up and use. They WILL destroy your baseband chip. It may be a week, it may be a year, but it WILL destroy your iPhone's capability to detect cellular service eventually.

All this being said, the safest, most dependable unlock is through Apple, or through a cell provider, (AT&T, Verizon, etc.). NOT through an employee doing it on the side illegally, either!!! The actual store. If this guy is suspected of doing this, or Apple detects the inconsistency or excessive number of unlocks, they will pull his ID #, and you will NOT get your unlock, as a matter of fact, I just an hour ago spoke to a person who spent $60 for this exact thing, and didn't get his unlock. I will show you that your unlock works before we part company, and once again, my hack is LEGAL. As always, thanks for reading...
                                                                                             ~The iDevice Pro~