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GR-9028 disconnects when the Android phone screen is locked.

If you lock the screen on Android, the BLERTK app disconnect the Bluetooth BLE connection with GR-9028 within a few minutes. Is there a way to prevent this symptom?

This issue occurs because of the "Battery optimization" setting within the Android app. To prevent this problem, please set the "app battery usage" to "Unrestricted." I'll demonstrate how to adjust this setting step by step using a Google Pixel phone:

1. Tap on "Settings."

2. Choose "Apps."

3. Find and select the "BLERTK" app.

4. In the App info section, scroll down to "App battery usage."

5. Select "Unrestricted."

Hope this helps!