Mobile data switching on automatically

[AC Question]

SOME BATTERY (batteryFu-tool-twentythree) BOOST APP (APK) INSTALLED ON LENOVO A526 , AND IT STARTED SWITCHING ON MOBILE DATA AUTOMATICALLY SO I UNINSTALLED IT BUT STILL PROBLEM EXIST WHAT TO DO ITS ANNOYING N COSTING ME MONEY TOO, I feel its Malware who made changes to android setting , is it helpful to reset phone to factory setting? please help