to check for new versions. If one is found, click download and wait for the system to restart. 2. Manual Update via USB
The new firmware for the AC8257 is a welcome maintenance release that breathes new life into budget and mid-range electronics. By fixing Bluetooth bugs and updating streaming protocols, it extends the longevity of devices that might otherwise feel obsolete.
Have you updated your AC8257 head unit recently? Which firmware version brought the biggest improvement? Share your experience below.
This is the most critical step. Downloading the wrong firmware will your unit (no boot, black screen). To avoid this, collect this information from your head unit's Settings > About Device or System Info :


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