The iOS 6.1.6 (10B500) firmware is the latest official version of the operating system for the iPhone 3GS. This firmware includes numerous improvements and fixes aimed at enhancing the stability and security of the device. In this article, we will review the process of reflashing the iPhone 3GS to iOS 6.1.6, as well as verifying the hash of the downloaded firmware to ensure its authenticity.
What is iOS 6.1.6 (10B500) Firmware?
The iOS 6.1.6 (10B500) firmware is an update for the iPhone 3GS operating system, released in February 2014. It includes important security fixes and stability improvements, making it recommended for all users of this device.
Firmware Hash Sums
To verify the authenticity of the firmware file, use the following hash sums:
- SHA256:
37a4b3bb0cbc0cc4c94f4ec2987f23c9207644c2669084084c4a78e8325e6b91 - MD5:
1b6a0a0c9701d3762be7c4e90799c0b5 - SHA1:
eb7f495760a500bb284b07f11492a4fadf687802
Step 1: Preparation for Reflashing
- Ensure you have iTunes installed (for Windows and macOS) or idevicerestore (for Linux).
- Connect the iPhone 3GS to your computer using a USB cable.
Step 2: Verify the Hash of the Downloaded Firmware
Windows:
- Open PowerShell and navigate to the folder with the firmware file, for example,
cd Downloads. - Enter the command:
Get-FileHash iPhone2,1_6.1.6_10B500_Restore.ipsw -Algorithm SHA1
- Compare the resulting hash with the one listed above.
macOS:
- Open Terminal and navigate to the folder with the firmware file, for example,
cd ~/Downloads. - Enter the command:
openssl sha1 iPhone2,1_6.1.6_10B500_Restore.ipsw
- Compare the resulting hash with the one listed above.
Linux:
- Open Terminal and navigate to the folder with the firmware file, for example,
cd ~/Downloads. - Enter the command:
openssl sha1 iPhone2,1_6.1.6_10B500_Restore.ipsw
- Compare the resulting hash with the one listed above.
Step 3: Reflashing the iPhone 3GS
Windows (using iTunes):
- Open iTunes.
- Put the iPhone into recovery mode: Turn off the iPhone, hold down the “Home” button, and connect the device to the computer. Keep holding the “Home” button until the recovery mode screen appears.
- Hold down the Shift key and click “Restore iPhone”.
- Select the firmware file
iPhone2,1_6.1.6_10B500_Restore.ipswand confirm the restoration.
Windows (using 3uTools):
- Download and install 3uTools from the official site.
- Put the iPhone into recovery mode as described above.
- Go to the “SmartFlash” section and select “Easy Flash”.
- Click “Import Firmware” and select the firmware file
iPhone2,1_6.1.6_10B500_Restore.ipsw. - Click “Flash” and wait for the process to complete.
macOS:
- Open Finder.
- Put the iPhone into recovery mode as described above.
- Hold down the Option key and click “Restore iPhone”.
- Select the firmware file and confirm the restoration.
Linux:
- Install idevicerestore (follow the instructions on GitHub).
- Put the iPhone into recovery mode as described above.
- Open Terminal and navigate to the folder with the firmware file.
- Enter the command:
idevicerestore -e iPhone1,2_4.2.1_8C148_Restore.ipsw
- Wait for the restoration process to complete.
Device Description: iPhone 3GS
The iPhone 3GS was released in June 2009. It is the third smartphone from Apple and received significant improvements over previous models. It supports 3G networks and features a 3.5-inch display with a resolution of 320×480 pixels. The device is equipped with an ARM Cortex-A8 processor and 256 MB of RAM. The camera has a resolution of 3 MP and supports video recording. The iPhone 3GS runs on iOS 6.1.6, the latest official version of iOS for this device. Support for the iPhone 3GS ended in September 2014.
By following these instructions, you can successfully reflash your iPhone 3GS to iOS 6.1.6 and verify the authenticity of the downloaded firmware.
