Question about Sony Ericsson Walkman W810i Cellular Phone

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When switched on it ask to insert sim

Had been working fine until then, tried someone elses sim card on same network in the phone and it brought up the same message.

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The mainboard just need to be service to correct this problem

Posted on Oct 27, 2008

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Posted on Jan 02, 2017

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2 Answers

My HTC wildfire s can not detect sim card I already tried restarting and factory reset


Try the SIM card in a friend's phone.
Try a friend's SIM card in your phone.

Feb 24, 2015 | HTC Wildfire S Smartphone

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I brought a new sim for my top up phone. And it is asking for a number code what number code do I put in?


Hi what code is your phone asking for if it is asking for network lock code once you insert your sim in it then it mean the 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 through online providers like UnBBLock.com here they are rendering network unlock code for all blackberry mobile models at reliable cost .Else if you want to unlock some other mobile models then visit sites like Unlocking4U.com here they are rendering network unlock code for all mobile models at reliable cost .You can use among them and unlock your phone then freely use it with your t-mobile sim ...

Dec 07, 2014 | T-Mobile Cell Phones

1 Answer

My Samsung Galaxy S2 GT-I9000 doesn't read my SIM Card


Can't figure out exactly what the problem is. Try with the following methods.
1) The SIM card might be damaged. To check this, Try inserting the SIM card into any other active network free phone. If it doesn't work then sure the SIM card is damaged. If it works fine then the SIM card is in good condition.
2) The SIM port on your phone might be damaged. Try inserting any other active SIM card to it. If it doesn't work, then sure the SIM port is damaged. If it work fine, Then the SIM port is in good condition.
3) The phone might be network locked. If the phone doesn't allow any network SIM cards to work with it except any one specific SIM card, Then it is sure network locked. You can unlock a Samsung Galaxy S2 safer and easier using unlock code. You can get the unlock code for a Samsung Galaxy S2 from ProUnlocking.Com at affordable cost with easy unlocking guide. Good luck.

May 30, 2014 | Samsung Galaxy S GTI9000 Smartphone

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Solve nokia 1100 sim card not valid problem:


Yes I know this is an old thread, however just unlocked a Nokia 1100 locked to UK Vodafon and think this might be helpful to someone else.

I followed the instructions indicated by rishikmani (and duplicated on many unlocking sites). Yes these seemingly unlocked the phone, but when I inserted a 'foreign' SIM I got the "SIM Invalid" message. I discovered that if I inserted the 'foreign' SIM and ignored the display and re-entered the unlock code, the phone reset and read data from the SIM card.

Mar 11, 2011 | Computers & Internet

1 Answer

Invalid sim card


It shows Sim Error or else Invalid Sim...Or even though Sim Inserted it asks "Insert Sim"
If it says anyone of the error like that means Your Mobile is Locked To Network ..You need T Unlock it to insert other Network Sim GSM Sim Card....
It may locked to some Network....You can get the code here
http://www.superunlockcodes.com/supported-phones/rs12wp7/ and Unlock the Mobile from the Network Lock....
I hope..You got solution...

Jan 21, 2011 | Cell Phones

2 Answers

Says insert sim card when there is one in it


"Insert SIM" message is normally displayed on phones when a SIM card is not inserted on power-on or it does not detect the SIM card inserted.

Likely Causes:
  1. No SIM card inserted or inserted SIM card is damaged
  2. Inserted SIM card not positioned well in such a way as to make contact with the corresponding contact bridges on phone.
  3. Phone locked to a specific network and can only work on other networks when the firmware version is "flashed", that is completely changed to an unlocked version.
  4. The phone might be faulty (try with another good SIM, if you still get thesame message and its not one of the above reasons... it might be a transciever problem or the phone's SIM card slot's pins might be defective).
cheers.

Apr 30, 2009 | Sony Ericsson Walkman® W880i Cellular...

3 Answers

I need unlocking lg u890


i had a lg u890 mobile phone that i got unlocked but it had the same proble where i swithched on my phone it used to ask for the usim code..my old phone was locked to the 3 nt/wrk i got it unlocked so i could use my 3 nt/wrk sim card or any network simcard but i used vodafone 3g sim card.the code i used with my vodafone 3g network simcard in phone when switched phone on & it asked for usim sim code i inserted code i got & it shut the phone down then on again then it wld work with vodafone no bother at all it even came up with vodafone uk etc.but i had to reconfigure the sms/text telephone number aswell as reconfigure the mms settings & numbers etc aswell as reconfigure wap settings from 3g network to vodaphones.but after i got it all unlocked & settings changed etc & inserted a different 3g network simcard ie vodaphone/orange/o2/3g sim/t-mobile/tesco sim/virgin sims & switched phone on it asked for usim code i tryed the code i have & inserted the same code i have it/they switched phone off & then back on & all network usim card worked with no problems at all.the code i have is.>>> 142358#*# thats 142358# * # all 1 item/action.once you insert that 142358#*# thats it your phone will shut down then restart up & go onto the network usim card you want to use or inserted before using code.but 1 thing tho please remember if u switch off your phone or your phone switches off as batterys run out no power u will need to insert the code again.& another thing code wont work if your phone switches off or you switch it off & plug your mobile battery charger into phone to charge your battery up on the phone & you switch you phone back on when you are charging your phone as the phone will switch on & say insert usim code if you enter the code the phone will switch off & back on again but it will still request usim code.so you will have to wait unto there is plenty of charge in the battery to take phone off charge & swithch your phone on get the usim code message insert code above phone will switch off & straight back on again & then it will go onto your prefured usim card then you can plug your charger into phone again to charge phone up.you can use your phone on charger when u have entered usim code & it switched off & on again & registered with the prefered network.i hope this is of use to you as it is to me.if you try this code & either if it works or not please can you let me knows ty.email watsonwhizzy2001@yahoo.com

Oct 07, 2008 | LG enV VX9900 Cellular Phone

1 Answer

Network busy


itsc hance if ud ask me coz..."network busy" message appears only when there is a problem with your network..there is nothing wrong with ur phone..it wud work perfectly fine..try inserting the sim card and refreshing it..if this problem prolongs..ten try caling ur network provider...coz they r the problem and not ur phone..All the best

Happy to help
Have a nice day!
tc

Jun 09, 2008 | Motorola Mobility RAZR V3

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