Question about Sony Ericsson K750i Cellular Phone

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K750i "Insert SIM"

I switched my phone off one night and the next morning when i switched it on appear message "Insert SIM". I have cleaned the contacts both phone and SIM. Tried many SIMs. Nothing works. Please help.

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Do all the contact pins on the phone reach the simcard?
you can try to pull them up a little bit carefully.

Posted on Apr 05, 2008

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K750I INSERT SIM

Posted on Dec 02, 2010

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Most time it say insert sim


hi,try put that sim in another phone..try see if you will still get the same message...if you get the same message, it means the sim card is bad...but if you do not get the same message you could look for a clean matterial to clean the place you normally place your sim on the phone..if this does not work also, the you will have to go see an expert to help you handle it.
cheers.

Jul 17, 2010 | Sony Ericsson K750i Cellular Phone

2 Answers

If i turned on my chinaphone n95 it says "insert sim". though i tried to change another sim card but still the same display "insert sim" and i cant start using my phone. how to fix it


it may be sim damaged problem or it might be software problem so kindly check first with sim or switch off your phone for few min and insert sim and switch on your mobile

Sep 17, 2009 | Cell Phones

1 Answer

K750i says insert correct sim.it is on orange network and have tried a working sim card for orange,o2,vodaphone and t/mobile.all give same response.any ideas regards mark


It sounds as if your SIM card is either expired, not activated or burnt to another number, Try it in another working Orange phone first, and then you can at least rule out a SIM problem.

Jul 21, 2009 | Sony Ericsson K750i Cellular Phone

2 Answers

Motorola L7 Insert Sim message keeps appearing, after 5 or 10 mins of switching the phone on. Sometimes the phone will start up with this message too. Sim is in phone.


Check The sim Holder First then Clean It after that If The Problem Occured Then Use another Sim If The Problem Solve then Replace Ur Sim From its Operator If Problem Not Solved then First Update the Phone Software and also Problem occured then Repair ur sim Holder From Motorola Service Cemtre........................




Good Luck.............

Jul 28, 2008 | Cell Phones

1 Answer

Sony Ericsson K750i


you need to reflash the phone's firmware this can be done online at www.topsony.com or take it to a mobile service center and have it done there

Nov 20, 2007 | Sony Ericsson K750i Cellular Phone

4 Answers

N95 sim problem


try checking your sims terminals if theirs any obstruction or one or any o the terminals doesnt contact w/ the sim. or try putting a folded paper like the size of your sim on top of your sim...

cause common cause of insert sim is that it lost its contact w/ your sim terminals..

Oct 25, 2007 | Nokia N95 Cellular Phone

1 Answer

SE K750i displaying 'insert sim' even though sim is inside.


This problem is due to your phone's sim card IC malfunctioning. It may get damaged due to phone dropping gently into rough surface and its crystal structure may break due to it. for any queries mail to mahesh_vr@yahoo.com

Sep 01, 2007 | Sony Ericsson K750i Cellular Phone

1 Answer

SE k750i is displaying insert sim even though sim is inside.


well... seem like you phone has got locked from the network may be accidently in case of stolen better check you service provider and if they say every thing is fine try to flash your mobile .it has some perticular number to flash it try these number *#7780# (password 12345)

Sep 01, 2007 | Nokia 3200

1 Answer

SonyEricsson K750i not switching on


if you put in charger does it give any signal?

Aug 27, 2007 | Sony Ericsson K750i Cellular Phone

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