16:12:39.254 - Info: [ 0.2096 ] Sending bct_br
16:12:39.254 - Info:
16:12:49.314 - Info: [ 0.2515 ] ERROR:
16:12:49.314 - Info: might be timeout in USB write.
16:12:49.314 - Info:
16:12:49.351 - Info: Error: Return value 3
This has been asked countless times on the forum.
You can easily find the solution with Google.