@danfro
thank you but it's 4g sim card and the device is with a one slot only.

@lduboeuf said in problems with my new sim card on sony xperia:

Well idk what can be the issue could you precise your provider and Country ?

the new provider is "bouygues telecom" in France

@lduboeuf
I had tried that first. it was always refused.
I tried again and this time the phone constantly searches for the network without finding it.
It's the same with 2G to 4G.
I tried sms call. Answer : no network

@lduboeuf
Hello again, you can see the results :

@lduboeuf

Hi, i use this device for long time without problems but i received a new sim card.
I put this one in my device. I boot the phone, i type the pin code with success it spends a few seconds searching for my mobile network and then says denied.
Its not a problem with the sim card because i try it with an old android phone.

@lduboeuf

Hi, my sim card is recognized and i have to type pin code.
And i use this sim card with an old android device while waiting to solve the problem.

hello guys,
I'm a 2 years UT user.
All works fine but i received a new sim card and it's still refused with all versions of UT (rc, stable....)
If you can help me, it will be fine because using android again is for me a very bad experience.

Sorry for my english, i'm a french guy