How to set Android M default USB config to MTP rather than “charging only”?

Question

Whenever my device (Nexus 5, Android M Preview 3) connects via USB, the USB config always defaults to \"charging only\".

This is quite problematic because the USB port

Answer 1

This is a major problem for a layman to use. To access the files on your PC you need to follow the steps mentioned below:

1. Swipe down on the screen, tap on "USB for file transfer".
2. Select the option "Transfer Files(MTP)".

Primarily this should solve the problem. But, if this DOES NOT solve the problem, then follow the following steps.

1. Make sure the SD card is inserted properly.
2. Go to "Settings-->Apps".
3. Tap on the three dots on the TOP RIGHT corner of the screen and tap on "Show system apps".
4. In that list of apps, find the apps "External Storage" and "Media Storage".
5. Now clear the data and cache for those apps.
6. Reboot your device.
7. Now go to "Settings-->Developer options" and enable "USB debugging".
8. Then tap on "Select USB configuration" and select the option "MTP(Media Transfer Protocol)".

Now connect your device to your PC and you should be ready to go.

You have to follow these steps only once, however, you need to select the type of connection every time by swiping down on screen and selecting the option "MTP".

Hope this helps...!