topic Re: connection problem or invalid mmi code in XPERIA archive

connection problem or invalid mmi code

SaadPatel — Mon, 16 Dec 2013 14:11:46 GMT

Hi guys.
Whenever I dial a phone number or a service code and press the dial button, im getting an error -"connection problem or invalid mmi code " and the dial fails. The network strength remains full. This happens occasionally and I do not receive calls or any communication from the network.
In short, I lose connection with the network somehow. I changed my sim card to see if that solves the problem but I had the same problem with my new sim. So obviously this must be a device related issue. Pls help coz its very frustrating to not being able to perform basic functions using the device. Pls advice me asap.

Re: connection problem or invalid mmi code

Uliwooly — Mon, 16 Dec 2013 18:08:25 GMT

Have you contacted your carrier/network regarding this issue?

Re: connection problem or invalid mmi code

SaadPatel — Tue, 17 Dec 2013 03:28:44 GMT

As I said, I had changed me sim. The new sim was of a different carrier. Had the same problem. So most probably it isnt a network problem, right?
Also, I tried factory reset..worked like a charm for a day but started having the same problem the very next day!
Help help help!

Re: connection problem or invalid mmi code

Uliwooly — Tue, 17 Dec 2013 06:13:12 GMT

It could be an app acting up, do a factory reset and do NOT install any app, test it for a day and see if you get the same issue, if you don't then its an app

Re: connection problem or invalid mmi code

Niranjan_NM — Sun, 15 Jun 2014 05:29:00 GMT

I have been facing same problem since 2 months with my xperia t2 ultra dual, still i am not got the solution....!!