If your Droid X2 has issues like freezing up and overheating. A simple cache clear could solve this. To wipe system cache, follow below steps. Power the phone off Power On while holding down the Home key When exclamation point icon appears press BOTH volume keys Use volume keys to navigate to “wipe cache partition” and tap the power button to select Wait for it to finish and select reboot system If this doesn’t solve the issues, then consider doing uninstalling unnecessary apps that could be running in the background after you have closed them. You don’t want apps eating up your battery or heating up your phone by constantly running your processors.
Use Greenify to figure out which apps are running in background, and to permanently hibernate them so they can never again run in background after you have closed them. Never should your phone or tablet become slower and battery hungrier after lots of apps installed. With Greenify, your device can run almost as smoothly and lastingly as it did the first day you had it! ROOT is required.