lỗi boot 1200

[tuan_queso5]

etting MCU ID
Phone didn't answer with TX line high after power on!
Causes:
1. Phone don't power on -> Check cable
[COLOR="Blue"]2. TX pin from phone don't make contact -> Check cable[B
thứ nhất kiểm tra sợi cab

thứ 2 lỗi upp nè bạn
3. UPP damaged -> change UPP