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E57 — BLE_GATT_CLIENT_FAILED

Creating the GATT client for the FKMTime Display connection failed.

What happens​

The current connection attempt is abandoned (continue 'outer) and the device retries the connection loop. The error is recorded once per boot.

Possible causes​

  • Not enough BLE stack resources to create the GATT client.
  • The connection dropped between being established and the GATT client creation.

How to fix​

  1. Wait — The device retries the connection automatically.
  2. Reboot the device — Frees all BLE stack resources for a clean start.
  3. Contact support — Open an issue on GitHub if this appears consistently.