How to Save APTickets / SHSH Blobs iOS 5.0.1 with Redsn0w for Downgrade

អត្ថបទខាងក្រោម ដកស្រង់ទាំងស្រុងពី គេហទំព័រ Cydia និយាយអំពី របៀបរក្សាទុក SHSH ដោយ ប្រើប្រាស់ កម្មវិធី Redsn0w ដើម្បី អាចអោយ យើង អាចធ្វើការ Downgrade ជំនាន់ ៥ ទៅ ជំនាន់ ៥​ណាមួយទៀត ។ សូមបញ្ជាក់ថា រហូតដល់ពេល នេះ Redsn0w អត់ទាន់ អាចប្រើ សំរាប់ iPhone 4S និង iPad2 ឡើយ ។ (អត្ថបទ ជាភាសាអង់គ្លេស ពុំទាន់ ត្រូវ បានបកប្រែ ជាភាសាខ្មែរ ឡើយ )

Instructions to Save SHSH Blobs, APTickets

Step 1: Launch RedSn0w 0.9.9 and select ‘Extras’. You can download the latest version of redsn0w from our dedicated download section.
Step 2: Select ‘SHSH blobs’


Step 3: Place your iDevice in DFU mode. If you are a newbie, here’s the DFU mode video demo.

• While iDevice is connected to the computer, turn off the device.
• Prepare to press the POWER + HOME button for 5 seconds.
• Then while holding down the power button, press the Home button for 10 seconds.
• Release Power button while holding down the HOME for 10 seconds .Your screen is completely black

Step 4: Click the Fetch button and let them work. This will now start fetching the SHSH blobs stored in the device and then send them to Cydia server. If you have already sent SHSH blobs you will get message saying – Cydia server already has a full set of blobs for this configuration.

After this process, your iDevice restarts automatically and a plist file will be created in redsn0w directory on your computer. It is very important for you to keep this file in safe place.

Step 5: Now its time to send the signed and APTicket SHSH backup on the server Saurik. To do so – click on Submit and then specify the SHSH.plist file.


Step 6: Next step is to create a firmware with this file SHSH.plist / APTicket.
Click on Stich -> IPSW

Step 7: Enter the iOS firmware you signed SHSH with and save the APTicket.

Step 8: Click ‘Local’ button and then specify the file SHSH.plist previously created. It will start loading kernel cache and stitching the blobs. It will automatically add APTickets, patch iBSS and iBEC in the background.

You will get a popup windows saying – ‘Blob stitching done’. Your iOS 5.x personalized firmware is created and available on your computer. The windows will display the path of the customized IPSW. This custom IPSW can be used with iTunes and TinyUmbrella to restore iOS device to iOS 5.0.1.

And there you have it, you’ve saved SHSH blobs and APTickets. If something went wrong, feel free to ask @JAlLBREAKS.

Restoring a Customized iOS

Make sure that ‘#’ is added in front 74.208.10.249 gs.apple.com in your host file. Now, before you run the iTunes to restore your customized iOS, you must place your iOS device in Special DFU mode: Pwned DFU. To do so, launch the Redsn0w 0.9.9 and go to “Extras” menu and then “Pwned DFU”.

Place your iDevice in DFU mode and then click on Pwned DFU. Launch iTunes then simply indicate the firmware created earlier (with signed and APTicket SHSH). Click

• Mac: ALT (keyboard) + Restore button (iTunes)
• Win: SHIFT (keyboard) + Restore button (iTunes)

Can I use TinyUmbrella to backup SHSH blobs /Apticket ?

Saving SHSH blobs with TinyUmbrella will not going to work since iOS 5 has new SHSH mechanism (with APTicket). You can downgrade from iOS 5.x to iOS 4.x (however, you must have saved SHSH blobs for iOS 4.x) using TinyUmbrella but the tool doesn’t work for downgrading between versions of iOS 5.x (for instance, iOS 5.1 to iOS 5.0.1).
We only have one method – that is redsn0w – that stitches 5.x blobs to a custom firmware file and use that file to restore to iOS device. Here, it is important to keep in mind that as of today, redsn0w is not yet compatible with iPad 2 and iPhone 4S. There is no way you can downgrade from iOS 5.1 to 5.0.1 for A5 device.
Perhaps, developer @notcom has added tentative 5.0.1 support that allows you to save shsh blobs but as of now you will not be able to use them fully while restoring on your iPhone 4S.

Can I downgrade iPhone 4 or iPad 2 from iOS 5 to iOS 4.x?

TinyCFW has been tested for downgrading iPhone 4 and iPad 2 running iOS 5.0.1 to iOS 4.3.3 without getting stuck in a 1015 recovery loop. But the tool only works if you have already saved 4.3.3 SHSH blobs else you are out of luck.
Let us know if you were able to save SHSH blobs and APTickets for iOS 5.0.1 for your device or not? Share your results in comments section below.