Press the `2nd` key
Press the `+` key to open the `MEM` menu
Select `7: Reset`
Select `1: All RAM`
Select `2: Reset`
Press `2` to confirm
Wait for the calculator to restart
Press the `2nd` key
Press the `+` key to open the `MEM` menu
Select `7: Reset`
Select `1: All RAM`
Select `2: Reset`
Press `2` to confirm
Wait for the calculator to restart