No service, sim lock problem

[#1]

  Hi, i installed ginger dx v26 to my x8,,, ı have been using this rom 4-5 days, when it began to work slowly i decided to turn back stock rom,, So i restored my phone by cwm mode ( my backup is created on stock rom). When its done my phone didnt work it was stop SE logo ,, 

  After that i tried flashtool and i setup stock rom (v2.1) ,,, and ı set up stock kernel( v.2.6.29),,,and i setup baseband (015) later i started my phone before homescreen is says to me  "Please instert your Sim and Start phone "  i passed the warning message  it works clearly but the problem  "There is no service"  

   İ connect SEUS but it didnt find any update ,,this time i setup stock rom (v1.3) by flash tool ,,when i started phone there is no changes i connect SEUS again and updated to v2.1 ,, i started my x8 but my problem didnt change..  

  Do you know how can i rescue my phone    ( Maybe you will ask::  İ didnt unlock bootloader because of my phone 12W03)

[Uliwooly]

no to which question?

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[#3]

did you had the SIM card on the whole time ???  

ı said no

[Uliwooly]

my bad I had 2 threads open, did you tried all 3 ftf files?

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[#5]

Do u mean baseband, kernel and rom (rom is which you send me) ?  Now i flash only rom X8_2.1.1.C.0.0._un.ftf

[Uliwooly]

try the other options (i meant build number)

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[#7]

I flash kernel and baseband now and start phone its still same

[Uliwooly]

have you tested different SIM cards?

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[#9]

Yes i tested 3 SIM card ,,  My phone is a warranty changed phone, ( ı had an other sony phone it has broken ı sent it to warranty service and they sent it x8 to me ) is it possible the problem about this ?

[Uliwooly]

it might be a faulty device

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[#11]

I looked my country İMEİ checking website my x8s emei is saved ,, one more thing, all countrys phone use same Rom ?