screen lock not working

[CantonS4]

I went away last weekend 2 a place in mtns with less than 4G service. Mostly 1x & no service, but some 3G coverage. At some point during weekend, the screen lock when I was not using phone quit working. Also battery life has become terrible. It is only a 2 mo old battery. Screen lock is set for 1 min but doesn't work unless I set it manually. Battery will drain now rapidly - it was full 100% at 8 am. Currently at 38% at 12:23 PM with minimal use

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[chustle925]

Maybe a factory reset.