FotoSafe

Hardware guide

Choose a USB drive for Android: five compatibility checks

A matching plug alone does not guarantee a working data connection.

Start guide Reading time: about 6 minutes

In short: Check the connector, USB OTG support, adapter data capability, file-system support and capacity. Direct USB-C is usually simplest.

Quick check

Five things to verify

  • USB-C direct or USB-A through USB-C OTG.
  • The adapter supports data, not charging only.
  • The phone supports USB host/OTG.
  • Capacity exceeds the planned backup with headroom.
  • The plug fits even with the phone case.

Connection

Direct USB-C reduces failure points

A dual USB-C/USB-A drive works with many phones and computers. For USB-A, use a data-capable OTG adapter.

Storage

Plan capacity and file-system support

Video can dominate storage. Check FotoSafe's displayed data volume and leave spare capacity. Android support varies by device and file system. Formatting erases existing data and should never be the first troubleshooting step.

Before a large run

Confirm Android detects the drive

Connect it, wait, open the system file manager and test a small file. If Android cannot see the drive, FotoSafe cannot select it either.

Troubleshooting

USB drive not showing?

  1. Unlock the phone, reconnect the drive and wait a few seconds.
  2. Check the drive in Android's own file manager.
  3. Remove the phone case if it prevents a complete connection.
  4. Try a known data-capable OTG adapter or a lower-power drive.
  5. Do not format the drive until existing files are safely copied elsewhere.