For modern Aiwa portable Bluetooth speakers (like the Exos series) and wireless earbuds, updates are managed wirelessly (Over-The-Air or OTA) through a companion mobile application. Step 1: Connect to Your Phone

Fix: Never pull the plug immediately unless the progress bar has been stuck for more than 30 minutes. If you must force a reset, you may need to repeat the USB flashing method immediately upon bootup to fix a corrupted installation.