Experiencing frequent reboots following battery & screen replacement

Calibrated battery, cleared application caches, deleated unused apps & data, but still experiencing frequent reboots and occasional boot loops even in safe mode.

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I have had this in the past. So not sure if this will work but Factory reset helped me. I found later one of the apps I had deleted left rememants behind that seemed to cause the issue. Once I did the factory reset I waited a week to see if i still had the issue. then added apps one at a time. Can't remember which app but when I added it reboots came back and when I deleted it they kept happening until a second factory reset

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