I337 REPAIR NVM DID-still network some times only-help me

I337 REPAIR NVM DID-still network some times only-help me

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Platform: Samsung Android

Selected port: COM1

Selected model: SGH-I337

Phone was not found on the selected port!

Searching for USB diagnostic port...

Connecting to phone on COM157

Mode: Normal

Phone model: SGH-I337

Firmware compiled date: Mar 28 2013

Firmware compiled time: 09:00:00

Firmware released date: Apr 27 2013

Firmware released time: 18:20:59

Phone IMEI: 357503-05-129987-5

SW version: M9615A-CEFWTAZM-4.0.17062

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Platform: Samsung Android

Selected port: COM157

Selected model: SGH-I337

Mode: Normal

Phone model: SGH-I337

Firmware compiled date: Mar 28 2013

Firmware compiled time: 09:00:00

Firmware released date: Apr 27 2013

Firmware released time: 18:20:59

Phone IMEI: 357503-05-129987-5

SW version: M9615A-CEFWTAZM-4.0.17062

Creating NVM backup

Reading NVM done!

Repairing NVM for SGH-I337 phone...

NVM repair completed successfully

To finish the operation, please restart the phone via phone's menu.

what i do as a next step?

tried-logs as below

Platform: Samsung Android

Selected port: COM157

Selected model: SGH-I337

Reading info...

Mode: Normal

Firmware compiled date: Mar 28 2013

Firmware compiled time: 09:00:00

Firmware released date: Apr 27 2013

Firmware released time: 18:20:59

SW Version: M9615A-CEFWTAZM-4.0.17062

Send SPC...

SPC send successfully

Writing QCN...

Writing NV items...

NV items write successfully

Writing NV SIM1 items...

NV SIM1 items write successfully

Writing NV SIM2 items...

NV SIM2 items write successfully

Wrting EFS...

EFS write successfully

Writing provisioning items...

Provisioning items write successfully.

Writing QCN done

QCN write successfully

Please, restart the phone to apply changes

still same-sometimes call connect-stuck in white screen-call disconnect set ok