Emergency Calls Only Please Help ME!!!!

[maamiradina]

Hello Everybody
I have Samsung galaxy S6 Mobile, Yesterday when i picked up my phone, {Emergency Calls Only} Appeared, I restarted my phone but not succeeded and still shows {Emergency Calls Only} when I checked My Phone's IMEI it has been changed to 000000000 like this 650000000004.
And Now I am in very trouble please help me , and please find a good solution for my phone, I cannot Bear a NEW Phone
Your help is appreciated.
Thanks So Much!!!!!!

 

[Cosmic Blue]

what did you do to your phone for this problem to appear.

flashing a stock rom through odin or smart switch should solve the problem.

 

[maamiradina]

what did you do to your phone for this problem to appear.

flashing a stock rom through odin or smart switch should solve the problem.

Sir, I done nothing with my phone,
And are you Sure that FLASHING the Stock Rom will solve my issue?
If your answer is yes , then please Give me A link to download STOCK ROM for it.
Thank You