S7 Edge G935F/FD imei repair done and cert write done

Operation: Repair
Selected model: SM-G935FD
Software version: 27.3

Waiting ADB device... Ok
Reading phone info...
Model: SM-G935F
Android version: 6.0.1
Product code: SM-G935FZDUTTR
Phone version: G935FXXU1APBB
PDA version: G935FXXU1APB9
CSC version: G935FDAX1APB2
CSC country code: AUSTRIA
CSC sales code: TTR
HW version: MP 0.801
Phone SN: RF8H305PNLY
Chip name: EXYNOS8890
Modem board: SHANNON335
RF cal date: 20160302
IMEI:
Checking Super user right... true
Reading NV data... Ok
Checking NV data... Ok
Initialization zTool... Ok
Running zTool, please wait...
Start... Ok
Initialization... Ok
Generate and check client proof... Ok
Verify proof by client... Ok
Reading data from phone... Ok
Modem board: SHANNON335
Calculating... Ok
HWID: 01 FC 8F 96 75 9D 35 7A 6F 4C D4 5E 5E D5 0B DB
Repairing... Ok
Writing NV data... Ok
Rebooting phone... Ok
Repair done
..............
Operation: Patch Certificate
Selected model: SM-G935FD
Software version: 27.3
Waiting ADB device...
Please, allow USB debugging on phone... Ok
Reading phone info...
Model: SM-G935F
Android version: 6.0.1
Product code: SM-G935FZDUTTR
Phone version: G935FXXU1APBB
PDA version: G935FXXU1APB9
CSC version: G935FDAX1APB2
CSC country code: AUSTRIA
CSC sales code: TTR
HW version: MP 0.801
Phone SN: RF8H305PNLY
Chip name: EXYNOS8890
Modem board: SHANNON335
RF cal date: 20160302
IMEI:
Checking Super user right... true
Reading NV data... Ok
Checking NV data... Ok
Detecting MODEM... Ok
Reading MODEM... Ok
Calculating... Ok
Writing zTool... Ok
Initialization zTool... Ok
Rebooting phone... Ok
Patching CERT check... done
Thanks z3x team for your support
after repair done Imei status ok and network is fine but wifi not storing
the password any more after restart device
please fix this problem in root method ..

best regards