Question about HTC Cell Phones

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I started my new HTC Smart phone by using SIM card from one provider-Network (that SIM card was one I used in Dual SIM phone). I was asked to chose which Network I would like to have-it offered me both providers-Networks I used to have in my Dual SIM phone. After that, it loaded everything and I've used it normally. After that, I decided to use my other SIM card from a differant Network (also previously and simltanious used in my Dual SIM phone) but that card was not accepted because of: system error.I've tried other SIM cards (from my wife and friend - bith from the same Network) and it worked well. I took a new SIm card (form the same Network and with the same number) but the phone never connected me to the Network. Now, it won't connect me with the other Network too (the very same SIM card I used first time. Could you tell me what's the problem and how to solve it? Best regards Petar Starcevic

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Well the problem is not serious, what has happened is that it has corrupted some data location whilst setting up the various SIM's and the phone has basically "Locked Up" as it will have some conflicting data locations. OK, So the best way to sort this out is to Factory Reset the phone, and then start all afresh, and load it with ONE SIM card first and get it all going, 100%. THEN, add your other SIM card and then set up that one. Now at this juncture, make sure all your SMS, MMS, etc. settings are all correct. Now you should be able to use the phone.
Sometimes we get a system error, when we swap SIM cards without doing a Factory reset, as this is what one should do BEFORE swapping SIM cards, it can be done, without doing this and often it will work, however also this type of thing may happen. it is always best to perform a factory restore, before changing any SIM cards, this may be somewhat of an inconvenience, when you reset and loose your settings for the "Other" SIM, however these phone were NOT made to have SIM's swapped out "Hot" as we say.
If you wish to then try again with that card that wouldn't work, then as I say, you need to reset the phone, then install that SIM into the No. 1 SIM slot, and try setting it up then.
Now if you find that after doing a factory reset, that you still have a problem you may find it best to do a full system software reinstall. And NOT just a factory reset, which, really only clears out all the user entered data and sets the phone back to the "From the Factory" state.

Below is you support link.
http://www.htc.com/www/support.aspx
I would also entreat you to look for and download a service manual for your exact model HTC, this will assist you with any future problems should you have any.

Posted on Oct 03, 2010

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Posted on Jan 02, 2017

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