A520F Patch Cert Failed

Chimera Mobile Phone Utility version: 20.28.1515 @ 2019-02-21
Printing phone history

Repair IMEI
2/22/2019
3:20:59
AM

Patch Certificate
2/22/2019
2:52:26
AM

Patch Certificate
2/21/2019
2:12:26
PM

Patch Certificate
2/21/2019
8:59:23
AM

Repair IMEI
2/21/2019
8:57:05
AM

Patch certificate started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-A520F
Sales Code: XSG
Country Code: UAE
Timezone: Africa/Johannesburg
Android Version: 8.0.0 [R16NW] [SDK 26]
Build Date: Fri Jul 27 17:40:43 KST 2018
PDA Version: A520FXXU5CRGD [july 2018, revD]
Phone Version: A520FXXU6CRH2 [august 2018, rev2]
CSC Version: A520FOJV5CRGD [july 2018, revD]
Product Code: XSG
HIDSw Version: A520FXXU5CRGD/A520FOJV5CRGD/A520FXXU6CRH2/A520FXXU5CRGD
Board Platform: EXYNOS5
Modem Platform: SHANNON325
Serial Number: R28J13C7BVY
Imei: 356399080984558
Unique Number: CBJ107C296489C3
Connections: AT,MTP
Battery Status: 3.87V (49%)
Network Type: GSM
SIM Status: READY
Multisim Config: SS
Knox Version: v30
Warranty Bit: 0
Security Patch: 2018-08-01
Data Encryption State: encrypted
Preparing...
Checking current patchcert.
Checking modem.
Checking root.
The knox is still valid. Because of the root, the warranty will void.
Checking custom root image...
Downloading custom root image. Be patient! Do NOT disconnect the phone!
Checking downloaded image.
Present.
Rooting by custom image-based root method...
Flashing firmware...
Switching to download mode.
Waiting for download mode.
Connecting.
SBL Info: Model: SM-A520F, Region: EUR, Provider: OPEN, PDA: A520FXXU5CRGD
Reading PIT from phone.
Flashing boot.img
Restarting phone.
Unable to restart.
Restarting failed.
Finished at local time: [02.21.19 19:23:39]
WorkID: 53190963