Galaxy Alpha (G850F) Write CERT Failed

I could not write CERT :confused:

Code:

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Performed by 2.7.9.5 Software version.
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Platform: Samsung Android
Selected port: COM5
Selected model: SM-G850F
Operation: Read info
Reading info, please wait...
Detected phone model: SM-G850F
Firmware compiled date: Sat Apr  8 14:06:12 KST 2017
PDA version: G850FXXU2CQD2
CSC version: G850FOJVCQD1
SW version: G850FXXU1CPC1
Android version: 5.0.2 (LRX22G)
Sales code: XSG
Country: UAE
HW platform: exynos5
HW Chip: exynos5430
HW Modem: XMM7260
Security patch level: 2017-04-01
Warranty Void: 1
SIM 1 status: ready
Codename: sltexx
Performed by 2.7.9.5 Software version.
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Platform: Samsung Android
Selected port: COM5
Selected model: SM-G850F
Operation: Write Cert
Selected file: C:\Users\Abu Musa\Desktop\New folder\G850f.cert
Detected phone model: SM-G850F
Firmware compiled date: Sat Apr  8 14:06:12 KST 2017
PDA version: G850FXXU2CQD2
CSC version: G850FOJVCQD1
SW version: G850FXXU1CPC1
Android version: 5.0.2 (LRX22G)
Sales code: XSG
Country: UAE
HW platform: exynos5
HW Chip: exynos5430
HW Modem: XMM7260
Security patch level: 2017-04-01
Warranty Void: 1
SIM 1 status: ready
Codename: sltexx
Checking Root:
Phone is Rooted.
Reading security backup, please wait...
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung
\BACKUP\Security-SM-G850F-Unknown16-04-2019_17-54-05-.asec
file
Phone will restart now. Please don't disconnect cable!
Perform the following steps:
1. Connect phone via UART cable to the Box.
2. Note: phone screen must be active
Connecting to phone, please wait...
Writing Certificate failed
Performed by 2.7.9.5 Software version.

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