Connect phone in BROM mode. Use volume key buttons or testpoint.
Waiting for device... OK
Device found at COM34
Port: USB\VID_1782&PID_4D00\5&39620A33&0&3
Driver: [UNISOC Communications Inc.,sprdvcom,SPRD U2S Diag,sprdvcom.sys,4.19.38.134]
Port type: BROM
Connecting to device... OK
Selected...