If you decide to factory reset on your Android phone for any reason, the first thing you need to understand is that you will lose everything. Here we provide, How to prepare your Android phone Before factory reset.
Keep your mobile safe
Charge Your Battery above 55%
Make sure the battery is properly charged before resetting your mobile, If less than 55, charge your mobile
Backup all your Mobile data
You need to make sure that the data on your device is backed up so you do not lose valuable photos or documents. There are many options available if you want to store your photos in the cloud, but Google Photos is the best
Remove your SD card and Sims
Reset delete all your mobile data, So you better to backup all important data and remove sims and SD card