How does Samsung sma8000 change usb mode to charging only?

USB charging is always displayed when the mobile phone is charging. I suggest you:

1. Check whether the original data cable and charger of the mobile phone are used for charging.

2. Try to change other household power sources for charging.

3. Check whether the third-party battery software has been downloaded recently and try to uninstall it.

4. Back up data (contacts, text messages, photos, etc. ) and try to restore the factory settings.

If the problem still exists, it is recommended that you take the machine, purchase invoice and warranty card to the local Samsung after-sales service center for testing.