Notcom, the developer of the TinyUmbrella application with which we can save SHSH files and use them to restore old iOS versions, announced today that TinyUmbrella will not remove iOS 4.3 terminals from Recovery Mode. You already know that for iOS 4.2.1 there was a similar problem that was found barely 2 months after Apple released that version of the operating system. notcom does not specify if it will release a new version of TinyUmbrella that will solve the problems with Recovery Mode after error 1015, 1013 on iOS 4.3.
If you have an iPhone 3GS with an iPad baseband or an iPhone 4 for which you want to update to iOS 4.3 while keeping the baseband intact, I recommend you not to venture into a restore that could block your terminal in Recovery Mode.
UPDATED: It seems that finally TinyUmbrella can be used on the iPhone 4 to keep the baseband intact and take the iPhone 4 terminal out of Recovery mode.
