Best way to downgrade to 4.3.3 from iOS 5 beta 4?

[sofakng]

What is the "best" way to downgrade from iOS 5 beta 4 to 4.3.3?

The last time I tried, I needed to use fixrecovery43.exe because the recovery wouldn't finish the progress. ("Exit Recovery" wouldn't work from TinyUmbrella as well as other "Exit Recovery" applications)

Is there a "cleaner" method to downgrade? (also, if I downgrade to 4.3.5 will that downgrade my baseband so it's an older version similar to the one included with 4.3.3? I'm worried about what might break using the iOS 5 baseband with 4.3.3 firmware)

 

[WeegieMac]

What is the "best" way to downgrade from iOS 5 beta 4 to 4.3.3?

The last time I tried, I needed to use fixrecovery43.exe because the recovery wouldn't finish the progress. ("Exit Recovery" wouldn't work from TinyUmbrella as well as other "Exit Recovery" applications)

Is there a "cleaner" method to downgrade? (also, if I downgrade to 4.3.5 will that downgrade my baseband so it's an older version similar to the one included with 4.3.3? I'm worried about what might break using the iOS 5 baseband with 4.3.3 firmware)

I have an external partition running Snow Leopard with iTunes 10.4 installed.

To downgrade to the latest firmware (non-beta), I simply enter DFU mode and Option+Click on Restore and choose the firmware ipsw. As far as I know, 4.3.3 is no longer being signed, so you will have more of a task going back to that particular firmware, and could well be out of luck completely if you have no SH blobs saved.

 

[sofakng]

Thanks for the reply.

I do have my SHSH blobs saved from just about every iOS version for my iPhone 4.

The problem I had the last time was that after my iPhone was restored halfway, it rebooted (which is normal, I think) but then it went into a recovery mode loop.

I couldn't exit the loop using iRec (or whatever it's called) or TinyUmbrella "Exit Recovery". The only thing that worked was using fixrecovery43.exe which I think uses GreenPoison.