Help writing cert on G530A

Hello friends, need help im triying to repair imei on G530A already made wipe secutity, when click on write cert it ask for two certs? Whats that? Already purchassed but only one cert because they are expensives.

Plataforma: Samsung Android
Puerto seleccionado: COM178
Modelo seleccionado: SM-G530A
Modelo del teléfono detectado: SM-G530A
Fecha de creación del firmware: Fri Sep 25 09:45:57 KST 2015
PDA version: G530AUCU4AOI7
CSC version: G530AATT4AOI7
Versión del SW: G530AUCU4AOI7
Android version: 5.1.1 (LMY48B)
Reading info…
Mode: Normal
Firmware compiled date: Aug 31 2015
Firmware compiled time: 01:00:00
Firmware released date: Sep 25 2015
Firmware released time: 08:36:23
SW Version: MPSS.DPM.2.0.c5-00112-M8936FAAAANUZM-1
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung\BACKUP\QCN-SM-G530A-Unknown-04-02-2016_10-16-30-.qcn file
Checking Root:
Phone is Rooted.
Reading security backup, please wait…
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung\BACKUP\Security-SM-G530A-Unknown-04-02-2016_10-16-33-.asec file
Wiping EFS…
EFS wipe successfully
Phone will restart now. Please don’t disconnect cable!
Searching for a phone. Please wait…
Reading info…
¡En el puerto seleccionado el teléfono no fue detectado!

———————————————————————————–
Plataforma: Samsung Android
Puerto seleccionado: COM178
Modelo seleccionado: SM-G530A
Reading info, please wait…
Modelo del teléfono detectado: SM-G530A
Fecha de creación del firmware: Fri Sep 25 09:45:57 KST 2015
PDA version: G530AUCU4AOI7
CSC version: G530AATT4AOI7
Versión del SW: G530AUCU4AOI7
Android version: 5.1.1 (LMY48B)
———————————————————————————–
Plataforma: Samsung Android
Puerto seleccionado: COM7
Modelo seleccionado: SM-G530A
Selected file: J:\Celltech\Samsung\Certs\SM-G530FZ_R58G61LAD4N_351705077100468 (1).cert
Select Certificate2…
Operación cancelada
Writing Certificate failed

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