Random reboots - refurbished GS4
I received a refurbished replacement to my GS4. The previous phone was stuck on the Verizon loading screen despite attempts to factory reset, clear cache, etc.
After all of my apps were restored, I downloaded the 4.4.2 update. Since then, the phone has randomly rebooted several times a day. There doesn't seem to be any rhyme or reason. I've had it reboot while using different apps. It has rebooted while using Chrome on different websites. It has also rebooted when I wasn't even using it (I could see it on my desk at work just rebooting for no particular reason).
Currently, About Phone shows:
Model Number SCH-1545
Android Version 4.4.2
Baseband version I545VRUFNC5
Build number KOT49H.I545VRUFNC5
I've Googled this issue and tried various possible solutions:
-clear cache and reboot
-try different memory card (was using a Samsung class 64g class 10, then went back to my Amazon Basics 32g that I was using on the first phone with no problems)
-checked battery for defects (didn't find any after spinning it on a table to see if it bulged)
-used a different battery (Onite replacement battery for GS4); this has not reduced the number of reboots
-turned off Google Books and uninstalled updates (I don't use it anyway on my phone)
None of these solutions offers a permanent fix. I'm wondering if there was anything else I could try or should I go back to Verizon and ask for another replacement. Thanks.