a800i sim unlock done but orignal imei gone.

[lifegood8]

a800i sim unlock showing done but orignal imei gone.
imei now showing (350000000000006\01) (350000000000006\01)
how to back orignal imei plz help.


Operation: Unlock
Selected model: SM-A800I
Software version: 25.1

Waiting ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SM-A800I
Android version: 5.1.1
Product code: SM-A800IZDEINS
Phone version: A800IXXU1AOL1
PDA version: A800IXXU2AOL2
CSC version: A800IOJV1AOJ1
CSC country code: India
CSC sales code: INS
HW version: MP 0.100
Phone S/N: RZ8H106CH6R
Modem board: SHANNON333
RF cal date: 20160105
IMEI:
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait...
Start... OK
Init... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data... OK
Reading nv data... OK
Checking NV data... OK
Calculating... OK
Unlocking... OK
Rebooting phone... OK
Unlock done
Done with Samsung Tool PRO v.25.1

[expenaticx]

Write Nv_data.bin backup and the imei will return as well as network lock , or you can write cert with different imei.

[lifegood8]

after write bekup file orignal imei is back .
now need perfect sulation for unlock without imei change.

[expenaticx]

Try Read Code process if it available for your model.

[atstech]

Originally Posted by expenaticx

Try Read Code process if it available for your model.

i have a problem, read code work and i get codes but the phone ask for PUK code! and if enter defreeze code it says code error and then ask for sim network pin and if i put the nck code it says wrong code and stays locked?

any idea how to bypass this PUK code? or male the phone accept the unlock code?
codes work 100% AS I UNLOCKED OTHER 2pcs with this codes, excpet this pc which is asking for PUKcode!

wbr