G935K Cert patched but imei NG

i facing the IMEI NG problem even after patching the cert using patch cert AUG 2019 methond. solution please...





Operation: Patch Certificate
Selected model: SM-G935K
Software version: 37.0

Waiting ADB device... OK
Reading phone info...
Model: SM-G935K
Android version: 8.0.0
PDA version: G935KKKU2ERJ1
CSC version: G935KKTC2ERJ1
Phone version: G935KKKU2ERI1
Product code:
CSC country code: KOREA
CSC sales code: KTC
Phone SN: R39HB0HEMP
IMEI: 351514090015129
HW version: REV0.8
RF cal date: 20161122
Chip name: EXYNOS8890
Modem board: SHANNON335
Security patch: 2018-10-01
Boot Warranty bit: 1
SIM State: READY
Checking Super user right... true
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching server... OK
Checking server answer... OK
Executing... OK
Searching server... OK
Waiting for server answer... OK
Patching... OK
Rebooting phone... OK