again unlocking failed

Scanning devices … 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G361H
Hardware: SC8830
Mode: normal
Prepare environment …
This operation need MTP interface, if you are connect device via UART cable, replace with USB cable and re-scan device.
If not support read codes, use Unlock instead
Time used : 10.5 s

Prepare environment …
This operation need MTP interface, if you are connect device via UART cable, replace with USB cable and re-scan device.
Time used : 10.3 s

with uart

Prepare environment …
Device Authentication … communication failed
Please check:
1. choose the right port
2. some device UART need re-connect use each 30 seconds
Time used : 1 min 0 s