Re: [Solved] #777 Network Data Failure (Codes 8 & 11)
Sounds like a hung data session to me. Best practice is to turn off your phone radio for a few minutes before flashing a ROM. Wait 2-3 mins, then do the flash. I've never had this problem again on VZW or Sprint ever since a VZW data tech told me to do that once (after several tier 1 support folks were telling me my phone was bricked).
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