Patch certificate phone brik g950f

Patch certificate try to auto chimera root 50% work after phone reboot and hang logo now im try to flash phone now auto disconnect by dl mode

Patch certificate started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-G950F
Sales Code: BNG
Country Code: Ba
Timezone:
Android Version: 7.0 [NRD90M] [SDK 24]
Build Date: Tue Aug 8 23:42:10 KST 2017
PDA Version: G950FXXU1AQH3 [august 2017, rev3]
Phone Version: G950FXXU1AQH3 [august 2017, rev3]
CSC Version: G950FOXM1AQH3 [august 2017, rev3]
Product Code: BNG
HIDSw Version: G950FXXU1AQH3/G950FOXM1AQH3/G950FXXU1AQH3/G950FXXU1AQH3
Board Platform: EXYNOS5
Modem Platform: SHANNON355
Serial Number: RF8JA
Imei: 3533
Unique Number: 988A573138305A3754
Connections: AT,MTP
Battery Status: 4.07V (78%)
Network Type: GSM
SIM Status: READY
Multisim Config: SS
Knox Version: v30
Warranty Bit: 1
Security Patch: 2017-08-01
Data Encryption State: encrypted
Preparing...
Checking current patchcert.
Checking modem.
Checking root.
Checking custom root image...
Present.
Rooting by custom image-based root method...
Flashing firmware...
Switching to download mode.
Waiting for download mode.
Connecting.
SBL Info: Model: SM-G950F, Region: EUR, Provider: OPEN, PDA: G950FXXU1AQH3
Reading PIT from phone.
Flashing boot.img
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
The procedure has been canceled.
Finished at local time: [02.15.19 19:51:46]
WorkID: 52640093