MCU firmware is outdated

If your device displays “MCU firmware is outdated” during the firmware update, follow the steps below to fix this issue: 

This issue is normally fixed using the device repair tool in Ledger Live. 

  1. Open the device repair tool by going into the Manager and waiting for the blue Repair button, or open it directly from: Settings > Help > Repair your Ledger device.

  2. Connect your Ledger Nano S.
  3. In Ledger Live, select MCU firmware is outdated and click Repair. The repair process will start.

Still not solved?

If your problem is still not solved, there is probably a connection issue:

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