![How To Create Custom Firmware Without Upgrading The Modem (custom Firmware) IOS 5.0.1 Using Redsn0w [IFAQ] How To Create Custom Firmware Without Upgrading The Modem (custom Firmware) IOS 5.0.1 Using Redsn0w [IFAQ]](https://i.applemacios.com/images/008/image-23199-j.webp)
For owners of locked phones, we offer to download ready-made custom firmware without upgrading the modem, which we created using the Sn0wbreeze v2.8b11 program (For iOS 5.0 / 5.0.1). After updating to these firmwares, you can easily unlock your iPhone 3GS or iPhone 4 using Ultrasn0w or Givey Turbo Sim. In this article, we will talk about how to create custom firmware yourself without upgrading the modem from
using the Redsn0w program.
1. Download and run Redsn0w 0.9.10b1.
2. Click the Extras button.
3. Click on Custom IPSW. 4. Select the official firmware file on your computer (you can download it from here). 5. The process of creating custom firmware will begin. As a result, you will receive a file like NO_BB_iPhone3,1_5.0.1_9A405_Restore.ipsw In order to restore an iPhone to a custom one, use our detailed instructions.