Question about Sony Ericsson K750i Cellular Phone

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Network problem i am having problems with my sony ericsson k750i, when i put my sim in my handset it says inactive sim. i have found out that there is nothing wrong with the sim but there is a problem with the network on my handset. could you please help me. thanks

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  • fa_ojie Dec 08, 2008

    gmn cara setting k750 untuk bisa internet

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Siwtch off the mobile then siwtch on the mobile

Posted on Dec 08, 2008

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I cannot put other sim on my sony ericsson k750i pliz tell me is there is any way or reset code eargly wating for solution


If you cannot insert other Network Sim card in the Phone mean it locked to Network ,you need to unlock it.You can get the unlock code from here Simpleunlocking.com
and unlock it.

Oct 19, 2011 | Sony Ericsson K750i Cellular Phone

1 Answer

I have a sony ericsson J10i2, I bought it off ebay, it's saying i have an inactive sim, and there's a handset next to the network bar with a red line through it. I have signal on my phone, but i can't make...


Hello and Welcome to FixYa!
Inactive SIM message may arise due to more than one issues. First things first check the hardware of your phone, to do this Put out the SIM card and check what happens. If it shows insert SIM card, its normal. If it shows the same inactive message then hardware malfunctioning.
Ok if the hardware is ok, then its simple. Inactive SIM means that your SIM card is not being able to register your Network carrier. The Phone with a red-line means SIM card registration failed. Although the signal radar works. This may be due to 2 issue; either there is a issue at the Service provider End, to check this call the service providers from other cell or land-line and check the status of your connection against this SIM Card No. If they say everything is ok. Then Its confirmed that your Phone is Network locked (Can only be used for one specific network) In this case coordinate with the seller.
I hope you will have a clearer picture now.

If you have any Confusion, questions or issues regarding your problem do tell me.
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Concerned, Nooh

Mar 15, 2011 | Sony Ericsson J220a Cellular Phone

1 Answer

Phone saying inactive sim its a k850i sony ericson


I assume you did not purchase the phone from a eputable source. The inactive sim message appears in this way when a person reports a sony ericsson phone lost or stolen. The IMEI number (unique to every handset) is used to disable functions of the sim reader.

May 26, 2009 | Sony Ericsson K850i Mobile Phone

1 Answer

Inactive sim


4 ur phone 2 write inactive sim is meaning dat ur old phone has been costomised with ur sim card. so use anoda sim 4 ur new phone

Jul 13, 2008 | Sony Ericsson K750i Cellular Phone

3 Answers

Inactive sim k750i ericson


i have a k750i and it inactive. does anybody know how to unblock it by yourself?

Sep 20, 2007 | Sony Ericsson K750i Cellular Phone

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