J600F imei repaire succesful but not change any thing

Welcome to Octoplus Box Samsung software version 2.7.9.6
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Platform: Samsung Android
Selected port: COM1
Selected model: SM-J600F
Operation: Repair IMEI A
Detected phone model: SM-J600F
Firmware compiled date: Fri Jan 18 16:18:28 KST 2019
PDA version: J600FXXU3ASA1
CSC version: J600FOJM3ASA1
SW version: J600FXXU3ARH1
Phone SN: 12345678901
Android version: 8.0.0 (R16NW)
Sales code: THR
Country: IRAN
HW platform: exynos5
HW Chip: exynos7870
HW Modem: SHANNON315
Security patch level: 2019-01-01
Warranty Void: 1
SIM 1 status: ready
SIM 2 status: absent
Codename: j6ltecis
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Connecting to server ..
Username: asadace1
Connect to server successfull.
Checking smart card...
Smart card successfully checked.
Your balance: 100 credits.
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Checking operation...OK
Initializing...OK
Rebooting phone
Searching for a phone. Please wait...OK
Please keep phone's screen active!
Initializing exploit...OK
Initializing...OK
Writing new phone IMEI...OK
IMEI successfully repaired.
To finish the operation, please restart the phone via phone's menu.
Performed by 2.7.9.6 Software version.


after finish the operatione phone going to upload mod then i reboot it manually and nothing is changed!!
what can i do?? i see logs from octoplus on this model(j600f) work for they but not work for me and must other users.please fix this

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