i9506 imei certi AN after ota update

[3issam1980]

hi team all in title no network after ota update *#0011# imei certi AN
what procedure to solve this issue
have z3x box and eazy jtag phone is now 5.0.1 .
any help will be usefull thanks in advance

[profkefah]

first root
then flash efs tarif baseband is unknown
then write cert

[profkefah]

here is rooting method

How To Root Samsung Galaxy S4 GT-I9506 On Lollipop 5.0.1? | Tutorials

[3issam1980]

thanks for reply
i did the root but how i can write cert ?

[3issam1980]

also ihave ap cp and csc ok imei ok

[profkefah]

check baseband
unkown or ok
read phone info
to check imei and sn

[3issam1980]

all ok, baseband csc and pda imei ok SN ok ineed how to write a good certificate to the phone
any help willl appreciated

[profkefah]

If all ok
what problem
no signal or cannot make call

[3issam1980]

not registred on network and imei certi NA after OTA update
i did a flash but still same problem

[profkefah]

But u wrote

baseband csc and pda imei ok sn ok

then if get not registerd on network
try this

go setting
'mobile networks
upload photo

[3issam1980]

i faced same problem on i9505 before and write certificate was the solution
but with i9506 i don't find how to do it

[profkefah]

I CHECK FOR i9506
but i didsnt find
try what i asked u