I've updated TinyUmbrella for iPad 2 GSM/CDMA users allowing them to restore 4.3.x without the fear of the recovery loop. Assuming you have 4.3, 4.3.1, 4.3.2, or 4.3.3 SHSHs and restore to one of those versions, TU will allow the restore to complete successfully.
It is important to note that I added this functionality so that iPad 2
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