You may want to try wiping the cache partition first before reset just to see if you can fix issue that way . If that brings no joy then go ahead and do the factory reset but please remember this wipes all your data. You will find the wipe cache in the recovery mode just below the factory reset [https://www.youtube.com/watch?v=_Bh92Lfkmo4|This video may be of some help] Hope this helps