Need Help! I run TU then restore to custom firmware 4.3.3 for 3GS new bootrom!

[sunga33]

I run tiny umbrella and restore to a custom firmware that I built using pawnage tool. Everything goes thru. But after it does the your iPhone has been restored and wait 10 seconds, it just goes back to recovery mode when it reboots. But when I do a fresh restore for 4.3.5 the phone is perfect. 4.3.3 have the same baseband with 4.3.5 so that shouldn't be it. Please help on what's going on. The phone has new bootrom and I don't like tethered 4.3.5 jailbreak..

[networkguru]

I run tiny umbrella and restore to a custom firmware that I built using pawnage tool. Everything goes thru. But after it does the your iPhone has been restored and wait 10 seconds, it just goes back to recovery mode when it reboots. But when I do a fresh restore for 4.3.5 the phone is perfect. 4.3.3 have the same baseband with 4.3.5 so that shouldn't be it. Please help on what's going on. The phone has new bootrom and I don't like tethered 4.3.5 jailbreak..

I assume you have 4.3.3 shsh blobs ?
did you try snowbreeze ? It worked for me in similar situation.

[Mes]

Both Sn0wbreeze (PC) and Pwnage (Mac) create custom firmwares.

IF you have SHSH blobs for iOS 4.3.3 either method will work.

Do a hard-reset on the phone and start completely over.
Hard reset: Hold power + home button for 6-8 seconds. Listen for a high-low computer sound as confirmation. OK if phone turns on after.

[sunga33]

I have tried that. Shsh blob is saved. Tried to restore to a fresh 4.3.3 and 4.1 and custom firmwares. It keeps going back to recovery mode after I get the message that iPhone has been restored and wait. The only firmware that works is 4.3.5. But I don't wanna tether JB.