To solve Bluetooth disconnect issue at standby status by JBL Firmware Update.

JBL Firmware Update: On Tune21 Screenshot
JBL Firmware Update: On Tune21 Screenshot
JBL Firmware Update: On Tune21 Screenshot
JBL Firmware Update: On Tune21 Screenshot
Update
Mar 27, 2023
Category
Installs
100,000+
Rate
0
Through your mobile device, you can now conveniently update firmware version in your JBL Firmware Update app, but no supporting other features. Supported models are:
- JBL Tune215BT and JBL Tune125BT