I9505 imei repair failed


hi
Galaxy s4 4.4.2 imei repair get failed tried with octopus latest software
but time after gets failed also flashed the phone but same problem comes up
time and again.
write modem flashed efs ect but no luck

getting this err message the following.

Welcome to Octoplus/Octopus Box Samsung software version 2.3.6
———————————————————————————–
To connect GT-I9505 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.
———————————————————————————–
Platform: Samsung Android
Selected port: COM3
Selected model: GT-I9505
Phone was not found on the selected port!
Searching for USB diagnostic port…
Connecting to phone on COM7
Mode: Emergency
Phone connection failed
Connecting to phone on COM5
Phone connection failed
Connecting to phone on COM6
Phone connection failed
No diagnostic ports found!
Connecting to phone on COM4
Phone connection failed
Performed by 2.3.6 software version
———————————————————————————–
Platform: Samsung Android
Selected port: COM7
Selected model: GT-I9505
Phone was not found on the selected port!
Searching for USB diagnostic port…
Connecting to phone on COM7
Mode: Emergency
Phone connection failed
Connecting to phone on COM5
Mode: Normal
Phone model: GT-I9505
Firmware compiled date:
Firmware compiled time:
Firmware released date: -ù~
Firmware released time:
SW version:
Performed by 2.3.6 software version
———————————————————————————–
Platform: Samsung Android
Selected port: COM5
Selected model: GT-I9505
Mode: Normal
Phone model: GT-I9505
Firmware compiled date:
Firmware compiled time:
Firmware released date: -ù~
Firmware released time:
SW version:
Performed by 2.3.6 software version
———————————————————————————–
Platform: Samsung Android
Selected port: COM5
Selected model: GT-I9505
Mode: Normal
Phone model: GT-I9505
Firmware compiled date:
Firmware compiled time:
Firmware released date: -ù~
Firmware released time:
SW version:
Old IMEI: Unknown
New IMEI: 351524-58-457854-0
Creating NVM backup
Reading NVM done!
Detected phone model: GT-I9505
Firmware compiled date: Fri May 16 19:51:21 KST 2014
PDA version: I9505VJUGNE2
CSC version: I9505ZTOGNE3
SW version: unknown
Android version: 4.4.2 (KOT49H)
Sales code: ZTO
Country: Brazil
HW platform: msm8960
HW Chip: apq8064
HW Modem: unknown
Codename: jfltevj
Cheking Root
Reading security backup, please wait…
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung
\BACKUP\Security-GT-I9505-07-10-2016_02-58-53-.asec file
Erasing old IMEI. It can take some time. Please wait…
Phone will restart now. Please don’t disconnect cable!
Firmware compiled date:
Firmware compiled time:
Firmware released date: -ù~
Firmware released time:
SW version:
Found phone on COM5
Repairing NVM for GT-I9505 phone…
Write IMEI failed
Performed by 2.3.6 software version
———————————————————————————–
Platform: Samsung Android
Selected port: COM5
Selected model: GT-I9505
Detected phone model: GT-I9505
Firmware compiled date: Fri May 16 19:51:21 KST 2014
PDA version: I9505VJUGNE2
CSC version: I9505ZTOGNE3
SW version: unknown
Android version: 4.4.2 (KOT49H)
Sales code: ZTO
Country: Brazil
HW platform: msm8960
HW Chip: apq8064
HW Modem: unknown
Codename: jfltevj
Reading info…
Phone was not found on the selected port!
Performed by 2.3.6 software version
———————————————————————————–
Platform: Samsung Android
Selected port: COM5
Selected model: GT-I9505
Detected phone model: GT-I9505
Firmware compiled date: Fri May 16 19:51:21 KST 2014
PDA version: I9505VJUGNE2
CSC version: I9505ZTOGNE3
SW version: unknown
Android version: 4.4.2 (KOT49H)
Sales code: ZTO
Country: Brazil
HW platform: msm8960
HW Chip: apq8064
HW Modem: unknown
Codename: jfltevj
Reading info…
Phone was not found on the selected port!
Performed by 2.3.6 software version