Question about HTC P3300 Smartphone

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Please help! Invalid or missing sim card

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Water ingress by the sounds of it. Take the SIM out and rub the gold chip as well as the gold phone connections with an elastic band. This happened to me this weekend and this sorted it.

Posted on Apr 14, 2008


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Posted on Jan 02, 2017


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My nokia 520 is saying the sim card is missing or invalid have taken card out and still saying invalid or missing

Hi if your Nokia lumia 520 mobile is displaying sim invalid message once you insert your sim in it then it mean your phone is locked to some other network provider due to this it wont accept any other GSM sim until you unlock it ....You can easily unlock your phone using sites like here they are rendering network unlock code for all mobile models at reliable cost ...After purchasing the code visit sites like to get free instruction about how to use that code and unlock your phone .After unlocking your phone you can freely use it with any GSM sim ...

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If the Phone says Invalid Sim means it locked to Network You need to Unlock it,you can Unlock it from Network Lock using the unlock code,You need to specify the brand ,model,find the Network and Country it locked now?GSM Network Locked Phones can be Unlocked,CDMA Cannot be unlocked,To Unlock it use the code,you can get the code and instructions at here and unlock it,then use with any GSM Network Sim card in the Phone,It says Sim missing means You can better go to nearest store to fix,Because it may be hardware Problem....

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when u press *#06# your phone shows imei and imeisv no. , so actually only one sim has a valid imi no.
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I have just been given an otek s200 and it doesn't except any sim card. it came with a vodaphone one but just keeps saying ''missing or invalid sim card''. can you please help

It's network locked.
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Sep 17, 2009 | Cell Phones

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A message pops up saying: Invalid or missing sim card. You can still make emergency calls if your service provider supposrts it. I have a sim card in their but i guess it doesn't read it?? HELP ME PL

Is this phone from the same service provider as your simcard? If not, not all phones are unlocked to work with the sim cards of rival companies. If both the phone and sim card are from the sam company, then you can have the company replace your sim card. They usually do this for free as a courtesy as long as you explain the problem to them. Hope this helps

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Hp Ipaq h6340


in the fall the simcard reader or the sim card connectors where damaged.

I would take the pda to a professional for analysis.

Dec 27, 2006 | HP iPAQ h6325 Pocket PC

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