Click here to download the AP80 Pro V1.3 FirmwareUpdate Content:1. Add e-book module function2. Add Bluetooth ACC transmission functionUpgrade steps:1.Be assure AP80 Pro has a 50% above battery power.2. Unrar the download file. 3. Copy the "update.upt" file to TF card.4. "System setting" - "Firmware Update" - "OK" Wait and finish the upgrade.