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Network problem in lumia 520 Reward $4
Created by sanjay431, 480 days ago, 948 views

Helo friends i have a nokia lumia 520 . its display sow me message (sim is missing or invalid ) network not coming . & then i trying to manuly setting it have no manuly option only automatic but signal not found . can u help please .i have changed sim but no respond.
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1

Pravy480 days ago

Your network antenna or your sim slot might be the problem. You definitely have to take it to a service center to get it fixed. It's not something you can do something about unless you know about hardware.

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2

naeleno480 days ago

im sorry you can try another sim if still same proplem thats mean you have a hardware issues send it to manufacture

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3

yemilinks480 days ago

Contact your network for a proper replacement micro SIM. Cut down sims will cause problems so it's always best to use a proper micro SIM.

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4

pustoi11480 days ago

you are sure that the problem is not the sim card? install the SIM card in another phone.

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5

pustoi11480 days ago

If the problem is not in the SIM card, try the following options.
The likelihood of a bad contact between the SIM card and SIM receiver. It is possible to fix by taking cotton wool, rubbing alcohol, and contacts of the card and receiver.
• The problem may be on the part of the software or OS phone. In this case, try a hard reset Lumia, or else altogether reflash the phone.
• It is possible and the option that the phone is simply blocked from the "outside" operators. Then, to apply techniques unlock your device Nokia Lumia
• If the SIM card and the receiver is bad contact, it is possible to try in some way a little "squeeze" sim card to the receiver. Suit small pieces of adhesive tape or paper.
• He could go wrong, and the phone itself, in which case it is necessary to address the problem of the Nokia service center.

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