Here's actual firmware and graph of the xtreme 3, any other old graphic with previous firmware is not anymore (specially when new xtreme 3 comes with 0.2.0.4) : r/Bluetooth_Speakers
JBL Charge 3 Firmware Update Instructions | Tom's Tek Stop | Jbl charge, Firmware, Bluetooth speakers portable
Amazon Live - JBL App EQ Update
Review: JBL Xtreme 3 with new app-based EQ - STEREO GUIDE
Aiwa Exos-3 vs JBL Xtreme 3 | Patreon
JBL Xtreme 3 | Portable waterproof speaker
New Firmware 7.6.0 · Issue #2 · ZuwaiiVR/JBL-Charge-3-firmware · GitHub