How can I back up data to an external storage device?

On your Cat S42 device:
1. Connect the Micro USB connector between the device and the external device (for example, a laptop).
2. Pull down the notification bar (swipe down from the top of the display) and look for “Android System charging this device via USB”. Tap this and select the option for example select Picture Transfer (PTP) or File Transfer.
3. On the laptop, you can look for the S42 in your File Explorer (Windows).
4. Select item to transfer.