s6 edge dm-verity verification failed…


i just get this phone that work good but when i try factory reset send me to recovery mode and on botton of screen says
dm-verity verification failed…

dont say i need to check drk like others but any way i tried to fix drk with octopus iget this log
Bienvenido en Octoplus/Octopus Box Samsung software versión 2.2.7
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To connect SCL24 phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
6. Go to dial window.
7. Enter "*#0808#" number.
8. Select "DM+Modem+ADB".
9. Press Home button.
10. Restart phone.
11. Press "Read Info" in software.
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To connect SM-G925I phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
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Plataforma: Samsung Android
Puerto seleccionado: COM3
Modelo seleccionado: SM-G925I
Proper android device not found. Make shure that "USB debug" option
on the device is turned on.
DRK fixing failed!
Performed by 2.2.7 software version
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Plataforma: Samsung Android
Puerto seleccionado: COM7
Modelo seleccionado: SM-G925I
Reading info, please wait…
Please, press "OK" button on the phone to allow USB debugging..
Please, press "OK" button on the phone to allow USB debugging..
Modelo del teléfono detectado: SM-G925I
Fecha de creación del firmware: Tue Oct 6 16:15:01 KST 2015
PDA version: G925IDVU3DOJ6
CSC version: G925ITFG3DOJC
Versión del SW: G925IDVU3DOJ6
Phone SN: RF8G81EHEQJ
Android version: 5.1.1 (LMY47X)
Country: OPEN
HW platform: exynos5
HW Chip: exynos7420
HW Modem: SHANNON333
Codename: zeroltedv
Performed by 2.2.7 software version
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Plataforma: Samsung Android
Puerto seleccionado: COM7
Modelo seleccionado: SM-G925I
Modelo del teléfono detectado: SM-G925I
Fecha de creación del firmware: Tue Oct 6 16:15:01 KST 2015
PDA version: G925IDVU3DOJ6
CSC version: G925ITFG3DOJC
Versión del SW: G925IDVU3DOJ6
Phone SN: RF8G81EHEQJ
Android version: 5.1.1 (LMY47X)
Country: OPEN
HW platform: exynos5
HW Chip: exynos7420
HW Modem: SHANNON333
Codename: zeroltedv
Checking Root:
Phone is Rooted.
Initializing exploit…
Executing exploit…
DM-Verity verification..Ok!
Not need to Fix!
Performed by 2.2.7 software version

any way to fix this