JBL Firmware Update 2021 for Bluetooth speakers - YouTube
JBL Xtreme 2 Firmware Update - YouTube
Update for Xtreme 3 finally released : r/JBL
JBL Xtreme 2 firmware 2.3 upgrade - sound and bass test - vs v1 - YouTube
Just got a JBL XTREME 3 and having issues downloading firmware update 0.1.8.8 their customer support was absolutely no help. The download will start and then the speaker shuts off and the