I had 5.7.893 installed and this is what I did to get back to OTA update path.
(1) went into recovery mode flashed back to 5.5.886 from my SD card
(2) installed the 5.886 radio http://dl.dropbox.com/u/21566851/Phone/radio.zip via recovery from SD Card
(3) Rooted pone
(3) then applied the...