Upgrade Firmware Kit BC66 TE B


I try to upgrade firmware for my BC66 on BC66 TE B kit, using iot flash tool. But when I press start, i show error log Bootrom start command timeout and I can not connect to my kit again.

Could you give me instruction or firmware to upgrade again my BC66.

Thank you very much

have you try another serial cable and another bandrate?

You have to reset (or power on) your board to enter the bootloader within the next few seconds after you press start. This is absolutely necessary. The problem with not responsive board is an side effect. It is gone after next reset.