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A105

A105 - App not authenticated

Makita · Tool Management System

What does A105 mean?

The system failed to connect to the app. You may need to re-establish the connection.

Common Causes

  • Bluetooth connection lost
  • USB connection issue (for PCs)
  • App needs restarting

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    For smartphones/tablets, reconnect Bluetooth.

  2. 2

    For PCs, close the app, unplug and plug in the USB cable, then restart the app.

  3. 3

    Try using a different USB cable if applicable.

  4. 4

    Restart your smartphone, tablet, or PC.

Browse all codes in this manual (6)
Verified technical data. Last updated: April 2026

Related Faults

A102A102 - Could not communicateA103A103 - Communication failedA104A104 - Abnormal connection detected
Source: Makita Tool Management System
Open Manual (Page 30)Search more codes in this manual