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caithnesschick
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Registered: ‎26-08-2013

Phone keeps saying either no sim or invalid sim, Help!!

I have an iPhone 3GS which I've never had a problem with until yesterday when I changed to GiffGaff! I put my GiffGaff sim in and switched it on and it was fine, I could use it straight away (this was in the morning) by the evening my phone was saying invalid sim, I switched my phone off and on again and all was well. Today has been a disaster!! Woke up to phone saying no sim, after switching on & off my phone wouldn't let me unlock it then it went black and then the apple symbol appeared??? This has been happening all day??? Please can anyone help me solve this problem otherwise I think I'll need to go to a proper provider
rushtonwolves
Posts: 1,740
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Registered: ‎16-06-2013

Re: Phone keeps saying either no sim or invalid sim, Help!!

re-sync the phone with your itunes account to get it working
Get a free giffgaff Sim
sneaky007
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Registered: ‎10-08-2013

Re: Phone keeps saying either no sim or invalid sim, Help!!

Hi Caithness,

It sounds like an faulty sim you can either order a replacement sim or carry out a sim swap

If you wish to get a replacement sim please follow the link below
http://giffgaff.com/support/lost

Note for security the current SIM will be immediately disabled and replacement sim is barred on delivery for security purposes. You will need to contact an agent to get the bar lifted . replacements don't require any topping up. during re-activation the replacement sim there will be a slight interruption in service whilst re-activating the replacement sim

or if you have a spare giffgaff sim laying around you can carry out a sim swap See here for how SIM swap works - http://is.gd/ggsimswap
GET A FREE SIM WITH £5 AIRTIME CREDIT
dalan
Posts: 43,851
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Registered: ‎24-10-2011

Re: Phone keeps saying either no sim or invalid sim, Help!!

Hi.
You need to try your sim in another phone, to rule out a faulty sim or phone.
If I helped click ''solutions and kudos'' thanks.
Get a free giffgaff Sim
Click Banner Above For A Free Sim Or Micro Sim With £5 Credit.
grandmaeileen
Posts: 642
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Registered: ‎27-05-2013

Re: Phone keeps saying either no sim or invalid sim, Help!!

Hi is your phone jailbroken?

 

If so try switching to 05.13.04. Seems to be a more stable baseband.

 

Also it could be your sim holder or when points that touch the sim inside your phone need tightening up.

 

The dreaded no sim or signal drop out is baseband linked though.

 

 

Get a free giffgaff Sim
kaleem7877
Posts: 1,101
Topics: 6
Registered: ‎10-03-2013

Re: Phone keeps saying either no sim or invalid sim, Help!!

Your sim might be faulty
Get a free giffgaff Sim
bruno00
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Registered: ‎06-10-2011

Re: Phone keeps saying either no sim or invalid sim, Help!!

it is nothing to do with sim card. It is your phones fault. Take to the phone shop. They may be able to help you.
caithnesschick
Posts: 20
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Registered: ‎26-08-2013

Re: Phone keeps saying either no sim or invalid sim, Help!!

No it's not my phone as its been perfectly well until I put the GiffGaff sim in it!
caithnesschick
Posts: 20
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Registered: ‎26-08-2013

Re: Phone keeps saying either no sim or invalid sim, Help!!

Not sure it was unlocked by O2 6 months ago and worked perfectly well with my old Orange sim :-(
bruno00
Posts: 3,220
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Registered: ‎06-10-2011

Re: Phone keeps saying either no sim or invalid sim, Help!!

are you able to use different sim card in your phone?