Depending on the release date, the firmware version on phones of the same model may differ. Apple does not stand still, thanks to which not only its electronic products are improved, but also its software.
Instructions
Step 1
Look at the sticker attached to the phone box. Previously, the firmware version of the IPhone2G could be found by reading all the necessary information on this sticker. As a consequence, so that hackers could not find out the firmware version, in order to downgrade it later, the stickers began to be encrypted. Therefore, in order to find out the firmware version now, you need to activate the phone through the iTunes program. Previously, it was possible to use a USSD request, but Apple successfully closed this loophole.
Step 2
Find the "Settings" icon on the iPhone 2G desktop. To view the version of the operating system (aka firmware), touch this icon once. Next, among the items that appear, select the "General" item, then, in the new menu, select the "About device" item. The screen will display all information about the current version of the operating system of the communicator. As you yourself understand, the higher the firmware level of your phone, the more possibilities it has. At the moment, the most relevant are the fourth and fifth generation firmware.
Step 3
Determine the firmware version for unlock. This is done in the following way. Insert a SIM card of any Russian mobile operator into your communicator. Switch on your phone. If a message appears on the phone screen that this operator is not supported, and for correct operation you need to insert a SIM card of another operator (for example, AT&T), then the phone is locked. It has a firmware version for the American consumer. In other cases, the iPhone is not locked, simply not tied to a specific operator, but nevertheless ready to work. When buying an IPhone from their hands, many users immediately want to check if the jailbreak is in place. The most common verification error is trying to install cracked applications. It is not right. It is enough to find the Cydia application icon on the communicator screen. Click on it. If the application is loaded, then the jailbreak is already built into the IPhone software.
