error in repairing imei in samsung on8
 

Welcome to Octoplus/Octopus Box Samsung software version 2.5.4
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To connect SM-G610Y 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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To connect SM-J710FN 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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Platform: Samsung Android
Selected port: COM9
Selected model: SM-J710FN
Can't kill external ADB references. Please, close all programs that use
ADB server.
Proper android device not found. Make shure that "USB debug" option
on the device is turned on.
Write IMEI failed
Performed by 2.5.4 Software version.
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Platform: Samsung Android
Selected port: COM9
Selected model: SM-J710FN
Please, press "OK" button on the phone to allow USB debugging..
Detected phone model: SM-J710FN
Firmware compiled date: Fri Oct 7 14:13:18 KST 2016
PDA version: J710FNDDU1APJ1
CSC version: J710FNODD1API9
SW version: J710FNDDU1API9
Android version: 6.0.1 (MMB29K)
Sales code: INS
Country: India
HW platform: exynos5
HW Chip: exynos7580
HW Modem: SHANNON310
Security patch level: 2016-10-01
SIM 1 status: absent
SIM 2 status: absent
Codename: j7xltedd
Checking Root:
Phone is Rooted.
Reading security backup, please wait...
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung
\BACKUP\Security-SM-J710FN-Unknown24-07-2017_16-12-37-.asec
file
Connecting to modem port...
Found phone on COM75
Reading data from phone...
Could not read data from modem port, trying with exploit..
Initializing exploit...
Phone will restart now. Please don't disconnect cable!
Searching for a phone. Please wait...
Phone found.
Executing exploit...
Write IMEI failed
Performed by 2.5.4 Software version.

Hello.

Phone doesn't respond on Software CMDs sent via Modem port. At first, please re-install Samsung USB drivers, then try to process the phone again. Try to use different USB ports of PC motherboard for connection of the phone.

If problem will remain the same - most likely phone has firmware with new type of Security. In such case You can try to write older (by release date) firmware, or only its modem, then repeat "Repair IMEI" operation.

I treid all above method but same error when I repair imei j7 2016 its success but this model falied I think this model is not supported

Please post here Software log of "Repair IMEI" operation, which You've performed after firmware/modem downgrading.