Default Update 10.4.1.b.0.101

1\ I tried updating from the update app, and couldn't update, is it because I'm rooted
2\ If I trying to update through pc companion, will I lose everything?? Should I perform a backup?

Sent from my C6603 using XDA Premium 4 mobile app
Version: Stock KitKat 4.4.2
Build: 10.5.A.0.230
Kernel: Stock
BL Status: locked
Rooted: Yes
Deodexed: No
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