iDowngrade tool can downgrade iPhone/iPad/iPod Touch firmware to any version without SHSH blobs, it allows iOS users to create signed firmwares that can be used to restore your iPhone/iPad/iPod Touch to any version that is being signed by apple in past. iDT generates unique firmware certificate keys  (similar to SHSH blobs) by fetching ECID, UDID, serial etc. from the device and sign firmware using these certificate keys, the signed firmware verification is done by redirecting original verification server to our TSS server to complete iTunes restore.



iPod Touch 5th gen

iPod Touch 4th gen



iPhone 7

iPhone 7 Plus

iPhone 6S

iPhone 6S Plus

iPhone 6

iPhone 6 Plus

iPhone 5 SE

iPhone 5S

iPhone 5C

iPhone 5

iPhone 4S

iPhone 4



iPad Pro

iPad Pro 9.7

iPad Air 2nd gen

iPad Air 1st gen

iPad 4th gen

iPad 3rd gen

iPad 2nd gen

iPad Mini 3rd gen

iPad Mini 2nd gen

iPad Mini 1st gen

Supported devices

NOTE: Due to apple limitation you can only switch between iOS firmwares which are supported by your device. eg: If you have iPhone 5S you can only switch between the versions of iOS 7.x.x , 8.x.x , 9.x.x and not iOS 6 because A7 devices never had iOS 6.

iOS 6 downgrades are only supported by iPhone 5,4S,4 and 3GS.

How it works ?

Backup your device.

Open iDowngrade tool.

Connect to the internet.

Connect your device and close iTunes.

Select iOS version and ".ipsw" firmware to which you want to downdrade.

Click "Sign Firmware" to sign it.

After signing, click on "Start TSS Server" to redirect verification server.

Make full backup of your device.

Restore your signed firmware with iTunes.



File info:


Size: 21.42 MB

OS: Windows

Version: 2.1.8

Downloads: 88542

Last Update: 05-05-17

MD5: f092ac5fa9a290785f3a13c759251ab8




Note: iDowngrade tool will not run properly if you have iTunes running in the background, run iTunes only after signing firmware and starting TSS sever.



If you're experiencing any kind of problem/bug then feel free to contact me with your logs at [email protected]

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