Why does my phone keep on freezing?

@drdreellis I suppose it is possible that this is caused by a bad camera module if your phone looks for it in the boot up. I would suggest to change it and then you also want to consider changing the battery as well. If you still have the original battery in this phone, it is definitely coming to its end-of-life

Since ifixit does not yet have a guide for that, use the ones from here for the battery. since you did not tell us which camera use this one as well as this one. The are written in French so use a browser that will do the translation for you. Replacement parts are readily available at many online stores.

After that, re-evaluate your phone and do not rule out any software issues. You can always try and start your phone in safe mode and see if that makes a difference.

While you work on your phone, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has a device with the same issues as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!