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Invalid MMI Code

3 posts in this topic

Posted · Report post

Hi,

Since upgrading to 2.3 version 1.8, whenever I try to check my credit balance or whenever I try to access the unlock panel I always get this message:

"Connection problem or invalid MMI code."

I am PAYG with Tesco, but now the phone show O2 as the provider. Any thoughts on this will be very appreciated.

Many thanks

Ian

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Posted · Report post

Hi,

Since upgrading to 2.3 version 1.8, whenever I try to check my credit balance or whenever I try to access the unlock panel I always get this message:

"Connection problem or invalid MMI code."

I am PAYG with Tesco, but now the phone show O2 as the provider. Any thoughts on this will be very appreciated.

Many thanks

Ian

tesco mobile piggyback off of o2s network so that will explain that..

im on o2 uk and it works fine for me,

can you make calls alright?

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Posted · Report post

tesco mobile piggyback off of o2s network so that will explain that..

im on o2 uk and it works fine for me,

can you make calls alright?

Thanks for the reply. I know that Tesco piggyback off O2 and yes I can make calls and also receive text messages. The main bugbear is if I decide to check on my balance or if later on I decide I want to unlock my phone to use with a different provider. It seems that I will be unable to do so as when I punch in the keycode to get to the unlock screen, I get the error.

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