Clear Random Access Memory (RAM) - Samsung Galaxy Note® II
Clearing Random Access Memory (RAM) will end running apps and stop background apps. Save app data before clearing RAM.
Random Access Memory (RAM) levels above 90% may cause the device to perform poorly when running certain applications. Review the amount of RAM being used on the device, and Clear memory if the RAM levels are above 1.8GB.
Clearing RAM may resolve issues with the device or display freezing. The device may be running low on memory.
Press and hold the Home key (located at the bottom) until the Recent Apps screen appears.
From the Recent Apps screen, select Task manager (located in the lower left).