Now you can downgrade iOS 6.1.3 without problems because it is possible if you have all requirements fulfilled. Here below you will see how to perform downgrading process. Unfortunately SHSH blobs is the thing that is needed. So, before we start let's take a look at the whole situation is general. Despite the worldwide popularity of Evasi0n tool allowing to jailbreak iOS 6 and iOS 6.1.2, Apple took a decision to terminate the "season of gifts" for fans of iOS hacking. A day ago, the Cupertino company released iOS 6.1.3 update and you download it now. But if you want to keep jailbreak you need to know that iOS 6.1.3 fixed the vulnerability used by Evasi0n, and thus making the tool useless for the new firmware. Also iOS 6.1.3 increased iOS security before jailbreak and also improved maps of Japan and fix a bug, leads to the possibility of obtaining unauthorized access to the device protected password. But there is news that another bug found in 6.1.3 to bypass passcode. Note: It is highly recommended to start downgrading process on factory unlocked iPhone because there is no guarantee that you will keep unlock while the process. As we found out more about iOS 6.1.3 jailbreak we can talk about iOS 6.1.3 downgrade. Update: First you can use iFaith to downgrade 6.1.3 after dumping SHSH blobs and creating custom firmware for iOS 6.1.2. One developer, being a team member of Evaders, hacker MuscleNerd, announced that iOS 6.1.3 closes the vulnerabilities that have been used to develop a tool. But what ids the most important here is that you can not downgrade to iOS 6.1.2, without or even with saved SHSH for latest iDevices. However there are some supported devices and you can see it below. Also you can jailbreak iOS 6.1.3 tethered using Redsn0w but also only some devices.

Supported iDevices for iOS 6.1.3 Downgrade

• iPhone 4
• iPhone 3GS
• iPod Touch

Once you have SHSH blobs saved using TinyUmbrella or Redsn0w or it is saved on Cydia servers after latest jailbreak find out how to stitch a "Custom IPSW with blobs" using Redsn0w for Mac and Windows. After which you will restore iPhone via iTunes using custom IPSW. Also you need to know that it will preserve your iPhone baseband.

Downgrade iOS 6.1.3 iPhone 4, 3GS to iOS 6.1.2 / 6.0 With Blobs Saved

Step 1. Download and run the latest Redsn0w (you can try 0.9.15b3 version but as became known it is not supported on Windows or Mac computer. Step 2. This step is necessary for iPhone users who want to keep baseband unlock. First build a No_BB IPSW using Sn0wbreeze that supports custom firmware creating for iOS 6.1.2 using iFaith Mode as well. Note: If you are tired of performing all these steps again and again, just unlock iOS 6.1.3 using IMEI now! Forget about compatible or not compatible baseband, firmware and messing with hacks and enjoy factory unlocked iPhone using any Sim card, iOS version and baseband type. In case you are iPad or iPod Touch 4G user, ignore this task. Step 3. Now go to Extras => SHSH blobs => Stitch. Step 4. Locate the IPSW for firmware version you need to downgrade from iOS 6.1.3. iPhone users choose custom No_BB IPSW you might make in Step 2. Step 5. Click Local and choose the saved SHSH blobs on your computer earlier, or click Cydia to use blobs saved on Cydia's servers. Step 6. Redsn0w will begin creating your signed IPSW. It will likely be saved in the same folder where other IPSW files were saved. Step 7. Now enter Pwned DFU mode with redsn0w or iREB. In redsn0w, go back to Extras and click on Pwned DFU. iReb is good to fix restore error in iTunes as well. Step 8. Open iTunes and holding Shift on Windows and Option (Alt) on Mac click the Restore button. Step 9. Now just choose the IPSW you need to downgrade to: iOS 6.1.2 or NO_BB. Now just sit back and relax till iTunes restore your iPhone to iOS 6.1.2 and downgrade iPhone 4, 3GS and iPad from iOS 6.1.3 at the same time. After just use evasi0n 1.5.3 to jailbreak iOS 6.1.2 and enjoy your favored tweaks again.