Samsung SM-G7102 4.4.2 unknown baseband and imei nll 100% Solved Solution

first step
Root Phone and Knox Disabled then after

Second step

INFO : 4/17/2015 3:22:21 PM > Platform: Samsung Android
INFO : 4/17/2015 3:22:21 PM > Selected port: COM22
INFO : 4/17/2015 3:22:21 PM > Selected model: SM-G7102
INFO : 4/17/2015 3:22:24 PM > Phone was not found on the selected port!
INFO : 4/17/2015 3:22:24 PM > Searching for USB diagnostic port...
INFO : 4/17/2015 3:22:24 PM > Connecting to phone on COM21
INFO : 4/17/2015 3:22:35 PM > Mode: Emergency
INFO : 4/17/2015 3:22:53 PM > Selected firmware file: SM-G7102_for_Unlock_and_Repair_IMEI_4.4.2.oct
WARN : 4/17/2015 3:23:29 PM > Please put the phone into Download Mode and connect USB cable.
WARN : 4/17/2015 3:23:29 PM > To put SM-G7102 into Download Mode, You have to perform the following steps:
WARN : 4/17/2015 3:23:29 PM > 1. Reconnect the battery.
WARN : 4/17/2015 3:23:29 PM > 2. Press and hold "Volume-" + "Home" + "Power ON" keys.
WARN : 4/17/2015 3:23:29 PM > 3. When phone turns on, press "Volume+" key.
INFO : 4/17/2015 3:23:29 PM > Found phone on
INFO : 4/17/2015 3:23:29 PM > Firmware write started.
INFO : 4/17/2015 3:23:29 PM > Writing ABOOT section...
INFO : 4/17/2015 3:23:33 PM > ABOOT section has been written successfully.
INFO : 4/17/2015 3:23:33 PM > Writing SBL1 section...
INFO : 4/17/2015 3:23:35 PM > SBL1 section has been written successfully.
INFO : 4/17/2015 3:23:35 PM > Writing RPM section...
INFO : 4/17/2015 3:23:37 PM > RPM section has been written successfully.
INFO : 4/17/2015 3:23:37 PM > Writing TZ section...
INFO : 4/17/2015 3:23:40 PM > TZ section has been written successfully.
INFO : 4/17/2015 3:23:40 PM > Writing DBI section...
INFO : 4/17/2015 3:23:42 PM > DBI section has been written successfully.
INFO : 4/17/2015 3:23:42 PM > Writing APNHLOS section...
INFO : 4/17/2015 3:23:45 PM > APNHLOS section has been written successfully.
INFO : 4/17/2015 3:23:45 PM > Writing BOOT section...
INFO : 4/17/2015 3:23:48 PM > BOOT section has been written successfully.
INFO : 4/17/2015 3:23:48 PM > Writing RECOVERY section...
INFO : 4/17/2015 3:23:52 PM > RECOVERY section has been written successfully.
INFO : 4/17/2015 3:23:52 PM > Writing SYSTEM section...
INFO : 4/17/2015 3:30:29 PM > SYSTEM section has been written successfully.
INFO : 4/17/2015 3:30:29 PM > Writing MODEM section...
INFO : 4/17/2015 3:30:41 PM > MODEM section has been written successfully.
INFO : 4/17/2015 3:30:41 PM > Writing CACHE section...
INFO : 4/17/2015 3:30:51 PM > CACHE section has been written successfully.
INFO : 4/17/2015 3:30:51 PM > Writing HIDDEN section...
INFO : 4/17/2015 3:30:56 PM > HIDDEN section has been written successfully.
INFO : 4/17/2015 3:30:56 PM > Firmware writing successfully completed.

Third Setp .....

1.Root phone
2.
Good phone security file read and write this phone
3.
INFO : 4/17/2015 3:55:16 PM > Platform: Samsung Android
INFO : 4/17/2015 3:55:16 PM > Selected port: COM21
INFO : 4/17/2015 3:55:16 PM > Selected model: SM-G7102
INFO : 4/17/2015 3:55:27 PM > Detected phone model: SM-G7102
INFO : 4/17/2015 3:55:27 PM > Firmware compiled date: Mon Oct 6 21:06:20 KST 2014
INFO : 4/17/2015 3:55:28 PM > PDA version: G7102DDUBNJ2
INFO : 4/17/2015 3:55:28 PM > CSC version: G7102ODDBNJ1
INFO : 4/17/2015 3:55:29 PM > SW version: Unknown
INFO : 4/17/2015 3:55:30 PM > Phone IMEI: Unknown
INFO : 4/17/2015 3:55:30 PM > Android version: 4.4.2 (KOT49H)
INFO : 4/17/2015 3:55:31 PM > Writing security backup, please wait...
WARN : 4/17/2015 3:55:55 PM > Phone will restart now. Please don't disconnect cable!
INFO : 4/17/2015 3:55:55 PM > Security write successfully.

------------------------
Forth Step

Write original imei A and B
INFO : 4/17/2015 3:58:46 PM > -----------------------------------------------------------------------------------
INFO : 4/17/2015 3:58:47 PM > Platform: Samsung Android
INFO : 4/17/2015 3:58:47 PM > Selected port: COM21
INFO : 4/17/2015 3:58:47 PM > Selected model: SM-G7102
INFO : 4/17/2015 3:58:47 PM > Detected phone model: SM-G7102
INFO : 4/17/2015 3:58:47 PM > Firmware compiled date: Mon Oct 6 21:06:20 KST 2014
INFO : 4/17/2015 3:58:48 PM > PDA version: G7102DDUBNJ2
INFO : 4/17/2015 3:58:48 PM > CSC version: G7102ODDBNJ1
INFO : 4/17/2015 3:58:49 PM > SW version: G7102DDUBNH1
INFO : 4/17/2015 3:58:50 PM > Phone IMEI: Unknown
INFO : 4/17/2015 3:58:51 PM > Phone SN: RZ1F115CA3V
INFO : 4/17/2015 3:58:51 PM > Android version: 4.4.2 (KOT49H)
INFO : 4/17/2015 3:58:51 PM > Checking Root:
INFO : 4/17/2015 3:58:51 PM > Phone is Rooted.
INFO : 4/17/2015 3:58:51 PM > Old IMEI: Unknown
INFO : 4/17/2015 3:58:51 PM > New IMEI: 352111-06-038228-6
INFO : 4/17/2015 3:58:51 PM > Repairing IMEI A...
WARN : 4/17/2015 3:59:35 PM > Phone will restart now. Please don't disconnect cable!
INFO : 4/17/2015 3:59:35 PM > IMEI successfully repaired.
WARN : 4/17/2015 3:59:35 PM > To finish the operation, please restart the phone via phone's menu (don't disconnect the battery!)
INFO : 4/17/2015 4:00:36 PM > -----------------------------------------------------------------------------------
INFO : 4/17/2015 4:00:36 PM > Platform: Samsung Android
INFO : 4/17/2015 4:00:36 PM > Selected port: COM21
INFO : 4/17/2015 4:00:36 PM > Selected model: SM-G7102
INFO : 4/17/2015 4:00:37 PM > Detected phone model: SM-G7102
INFO : 4/17/2015 4:00:37 PM > Firmware compiled date: Mon Oct 6 21:06:20 KST 2014
INFO : 4/17/2015 4:00:38 PM > PDA version: G7102DDUBNJ2
INFO : 4/17/2015 4:00:38 PM > CSC version: G7102ODDBNJ1
INFO : 4/17/2015 4:00:39 PM > SW version: G7102DDUBNH1
INFO : 4/17/2015 4:00:40 PM > Phone IMEI: 352111-06-038228-6
INFO : 4/17/2015 4:00:40 PM > Phone SN: RZ1F115CA3V
INFO : 4/17/2015 4:00:40 PM > Android version: 4.4.2 (KOT49H)
INFO : 4/17/2015 4:00:40 PM > Checking Root:
INFO : 4/17/2015 4:00:41 PM > Phone is Rooted.
INFO : 4/17/2015 4:00:41 PM > Old IMEI: 352111-06-038228-6
INFO : 4/17/2015 4:00:41 PM > New IMEI: 352111-06-035928-4
INFO : 4/17/2015 4:00:41 PM > Repairing IMEI B...
WARN : 4/17/2015 4:01:25 PM > Phone will restart now. Please don't disconnect cable!
INFO : 4/17/2015 4:01:25 PM > IMEI successfully repaired.
WARN : 4/17/2015 4:01:25 PM > To finish the operation, please restart the phone via phone's menu (don't disconnect the battery!)
----------------
fifth Step

Wirte good QCN FIle

INFO : 4/17/2015 4:02:20 PM > Platform: Samsung Android
INFO : 4/17/2015 4:02:20 PM > Selected port: COM21
INFO : 4/17/2015 4:02:20 PM > Selected model: SM-G7102
INFO : 4/17/2015 4:02:20 PM > Reading info...
INFO : 4/17/2015 4:02:20 PM > Mode: Normal
INFO : 4/17/2015 4:02:20 PM > Firmware compiled date: Jul 03 2014
INFO : 4/17/2015 4:02:20 PM > Firmware compiled time: 05:00:00
INFO : 4/17/2015 4:02:21 PM > Firmware released date: Aug 21 2014
INFO : 4/17/2015 4:02:21 PM > Firmware released time: 20:49:43
INFO : 4/17/2015 4:02:21 PM > SW Version: M8626A-AAAANAZM-1.0.4064
INFO : 4/17/2015 4:02:25 PM > Send SPC...
INFO : 4/17/2015 4:02:25 PM > SPC send successfully
INFO : 4/17/2015 4:02:25 PM > Writing QCN...
INFO : 4/17/2015 4:02:25 PM > Writing NV items...
INFO : 4/17/2015 4:02:28 PM > NV items write successfully
INFO : 4/17/2015 4:02:28 PM > Writing NV SIM1 items...
INFO : 4/17/2015 4:02:28 PM > NV SIM1 items write successfully
INFO : 4/17/2015 4:02:28 PM > Wrting EFS...
INFO : 4/17/2015 4:02:29 PM > EFS write successfully
INFO : 4/17/2015 4:02:29 PM > Writing provisioning items...
INFO : 4/17/2015 4:02:29 PM > Provisioning items write successfully.
INFO : 4/17/2015 4:02:29 PM > Writing QCN done
INFO : 4/17/2015 4:02:29 PM > QCN write successfully
INFO : 4/17/2015 4:02:29 PM > Please, restart the phone to apply changes

phone will be 100% ready to used......

Thanks Octopus box support Team,............