Tips & Tricks to Manage RAM Usage:

  • Restart your phone regularly. Press and hold "Power", and slide the screen down
  • Keep your apps updated
  • Uninstall unused third party apps
  • Clear recent applications
  • Clear app cache / data
  • Keep an eye on, and monitor your newly installed applications

Internal and SD Card Storage Management

Check the Amount of Free Storage Space:

  1. While on the Start screen, swipe down from the top
  2. Tap "All settings"
  3. Scroll down to and select "storage sense"
  4. Tap "Phone" or "SD Card"
  5. View the available values

Change the Default Storage Location:

  1. Swipe down from the Start screen
  2. Go to "All settings"
  3. Scroll to and tap "storage sense"
  4. Tap to change the default storage location from "phone" to "SD card" or the other way around

Insert / Remove SD Card:

  1. Put your index finger in the seam between the back cover and the screen frame at the top corner of the phone
  2. Press the middle of the back cover to bend it open and remove it (as seen in the image below)
  3. Remove the battery
  4. Fit the microSD card into its slot and then refit the battery and back cover

Name: 111.PNG Views: 3930 Size: 129.5 KB

Format the SD Card:

WARNING! Formatting the SD card will result in the deletion of all data stored on it.

  1. On the Start screen, swipe left
  2. Go to "Settings"
  3. Tap "storage sense" > "SD card"
  4. Swipe to and tap "format SD card"
  5. Press "Yes" to confirm

Transfer Files between the Lumia 640 and a PC or Mac:

  1. To transfer files between your Lumia 640 and your computer, first connect the smartphone to your PC
  2. Install the app, open it, and follow the self-explanatory steps to transfer your data


› See More: Microsoft Lumia 640: RAM, ROM, and SD Card Management