SIM1 remains undetected

[SEUser]

Hello. The SIM 1 of my Xperia M dual remains undetected most of the time. Earler i thought that there is some issue with my operator,so i went on to change my operator. But even now, a red cross sign is shown and the problem continues. I have to use net on this sim,so plz help me.

Thanks.

[SEUser]

Don't they come over here? do i need to contact them through PM and only then, they will reply in here?

[_alexdon_]

They come in the topics,but they are busy and they do not visit all of them.If you PM one of them,they will assist you faster.

[SEUser]

Thanks. Just sent out a PM to Alexander. Let's see if he comments in here.

I highly appreciate ur help.

[_alexdon_]

Anytime,keep us updated.He should answer,after the weekend.

[Johan]

That sounds rather strange.

If I understand you correctly, you haven't experience any problems since you started using Internet on only SIM1?

There's no logical explanation to why and it shouldn't work like that. You should of course not experience the unavailability of SIM1 depending on this setting.

Could you share some more information about the network operator(s) and their supported networks?

If both SIM have GSM and 3G (WCDMA) access you could try to switch them with each other. Use the SIM that you have inserted in SIM2 in the SIM1 slot and vice versa to see if you still get the same problem.

[SEUser]

well, yeah i can do that but not at this moment because i am using the internet almost all the time. Very busy life. Plz let this thread open.

Thanks.

[SEUser]

Just did that. switched both of them with each other. and then, changed the network of 1st SIM to GSM only(no 3G) and the 2nd one to WCDMA/GSM (3G). Now i'll keep an eye in next few days how thing move on. My concentration will be to find out if the 1st SIM goes unavailable or not, as i'll NOT be using internet on this one.

will update u later.

[_alexdon_]

Keep us updated.

[SEUser]

well,so i am back. In these all the days, SIM went missing only for few seconds. I only did this: changed the SIM (which i am using for internet) to GSM/CDMA  and the other one to GSM only. When i started using internet on another sim, i did the same to that one too.

Here important thing is that even if the sim which we are using for internet is 2G only, we better change into GSM/CDMA instead of GSM only. Tried it and it worked.

So i think this thread has finally got a solution.

Thanks forall the help and being with me.

[_alexdon_ · Accepted solution]

I have told you almost the same in my first post,but it is awesome that the phone is fine now.