AppSync 3.1.3AppSync patches MobileInstallation file on iPhone OS 3.x which is needed in order to install .ipa files manually without using iTunes.

I have been asked repeatedly, both by email and in comments about the latest version of AppSync which is compatible to work with the newly released iPhone 3.1.3 firmware.

So as it turned out, the older version of AppSync v1.0 which was released back with iPhone OS 3.x works with iPhone OS 3.1.3 as well. The installation instructions are exactly similar to the last release for OS 3.1.2.

Simply follow the step by step guide:

Step 1: Start “Cydia” on your iPhone.

Step 2: Touch on “Manage” tab on the bottom.

Step 3: Now touch on “Sources” as seen in the screenshot below:

Cydia - MobileInstallation Patch


Step 4: Touch on “Edit”, and then on “Add”. You should now be prompted to enter a url source as seen in the screenshot below. Type “” and click on “Add Source”.

Cydia - MobileInstallation Patch

Cydia will now automatically update your sources by following a series of automated steps as shown in the screenshots below:

Cydia - MobileInstallation Patch

Cydia - MobileInstallation Patch

Step 5: After installation is completed. Search for “AppSync para OS 3.1(3.1.2)” in Cydia and install this application. This app will automatically patch mobileinstallation file on your iPhone running firmware 3.1.2.

Cydia - MobileInstallation Patch

Once you have installed AppSync for iPhone 3.1.3, you should then be able to install just about any .ipa files manually on your iPhone and iPod touch.

You can also follow our complete jailbreaking guide for iPhone 3.1.3 firmware for iPhone 2G, 3G, 3GS and iPod touch 1G/2G using redsn0w 0.9.3, redsn0w 0.9.4, sn0wbreeze, PwnageTool 3.1.5. Unlocking can be done using ultrasn0w or blacksn0w.

For iPhone 3.1.2 firmware, you can use blackra1n, PwnageTool, redsn0w, sn0wbreeze, ultrasn0w and blacksn0w to jailbreak and unlock your iPhone and iPod touch.

Disclaimer Note: We don’t support or promote piracy in anyway. This article is purely for information purposes only. Proceed at your own risk. If you like an app, then please support the developer by buying the app from the App Store.

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