đây là log sau cùng các bác nak:
Selected model: C3050
Selected com port: COM23
Selected speed port: USB
Decode *.s3 file - please wait
segments 9
segment 1 20000000 100 byte
segment 2 20300000 27548508 byte
segment 3 2001E000 180 byte
segment 4 20016000 6248 byte
segment 5 20078000 1135276 byte
segment 6 2000C000 21404 byte
segment 7 20058000 56 byte
segment 8 20058138 16924 byte
segment 9 2003803C 36508 byte
Start USB Flash
Open com port - fail!
Send loaders - fail
Elapsed time: 8 second, sw ver: 3.5.0040