Apple fails to sign IOS 4.3.3

Until yesterday, Apple was still signing the SHSH IOS 4.3.3, so if you downloaded installer on the other side that is not iTunes and using SHIFT + Restore still working without error.

From today it will not happen, and the only way you can install IOS IOS 4.3.3 instead of 4.3.4 is to have saved TinyUmbrella SHSH.

If you do not have and you're stuck in IOS update 4.3.4. You can only make a jailbreak tethered, ie tied.

If you have the SHSH here's a tutorial to install IOS 4.3.3