Fairly sure the rationale has always been your modem(s) doesn't change when you flash a custom rom. PhilZ enables you to do a custom backup job & backup both the GSM & LTE modems though (can't speak for other recoveries, haven't used them with the I9505).
If it's important enough to cause you grief if it's lost, back it up. No excuses XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Trolling for thanks is lame Does Samsung's auto-brightness implementation crap drive you to self-harm ? A solution ! Probably the best thread ever posted on XDA Failure to search is the leading cause of male impotence on XDA If you don't know how to recover if things go wrong, what are you doing flashing custom roms ?
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