Symptoms
- Device charges normally when connected to a computer
- Computer doesn't recognize the device for file transfer
- 'This cable does not support data transfer' or similar message appears
- Same device syncs fine with a different cable
Likely causes
- CommonCable is charge-only (missing data wires)Many bundled or budget cables are built to save cost by omitting data lines.
- PossibleWrong USB mode selected on the deviceSome phones let you choose 'charging only' as the default USB behavior, which needs to be changed manually per connection.
- PossibleDamaged data wires inside an otherwise working cableA cable can still charge fine even if its thinner data wires have broken.
- Less commonComputer port or driver issueTest the cable on a different computer to rule this out.
What to do
- Check your phone's notification shade or settings after connecting for a USB mode option, and switch it to file transfer.
- Try a different cable, ideally the one that came with the device or one explicitly marketed for data and charging.
- Test the current cable on a different computer to rule out a driver or port issue.
- Try a different USB port on the computer, especially if using a hub.
- Replace the cable if switching it resolves the issue.
Tools and parts
- None required
USB data and charging cableSearch: “USB data sync cable”
When to call a pro
No professional service needed; simply switch to a cable and USB mode that both support data transfer.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.