[8002F1F9]PS3 Stuck in update loop while updating to rebug 4.84.2

I had a ps3 with rebug 4.80 cex. While updating to newer rebug using pup from usb drive, it is now stuck in update loop with error code 8002f1f9

A lot of google posts suggest that wifi/bt module is broken. Did updating break my module??

Please help how can I come out of this loop or rollback to older firmware i.e. 4.80
 
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