Connection & Compatibility

USB-C Data Cables vs Charging Cables — Why Ledger Is Picky

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Many USB-C cables look identical but only carry power, not data. Ledger requires data — so cable choice matters more here than with phones.

What's different inside

Charge-only cables skip the data pins entirely; 'data' cables have all four pairs. Externally they look the same.

How to test the cable you have

  • Connect to the PC — does it show any Ledger detection signal at all?
  • Try transferring a file between two computers with the same cable.
  • Compare behaviour to a known-good cable (the one that came in the Ledger box).

Rule of thumb

For firmware updates, always use a known-good data cable. Charge-only cables can leave the device in a stuck intermediate state.

Safety reminder: Use only the official Ledger site and Ledger Live. Never type your recovery phrase or PIN into a webpage and never share them with anyone. Pause and verify the moment anything looks unusual.

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