The operation guide for upgrading the firmware of TC44B
When the TC44B dongle works with an iPhone, if the prompt “”Cannot Use Accessory. Bravo HD FW Update: This accessory requires too much power” appears, it means the TC44B cannot be correctly recognized by iPhone, and please try to upgrade the fimrware of the TC44Pro dongle with the Windows computer. 1. Please connect the TC44B with the Windows computer by the suitable USB cable or adapter firstly, and double click to open the file “2021-3-ddHiFi-TC44B.exe”, then click “是(Y)” to proceed…




