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Giffgaff Sim not working in my iphone 3GS

Started by: cdior86
On: 03/09/2011 | 13:44
Replies: 18

by: cdior86
on: 08/09/2011 | 15:13

my internet is now working on my giffgaff sim card BUT there still isnt  any signal and i can make or send text messages or calls... obviously the sim and the phone is working properly... is it to do with settings?

Message 11 of 19
by: red_riviera
on: 09/09/2011 | 23:58

i have exactly the same fault :


At 1330 today I have activated my giffgaff sim and bought £10 goodybag + £5 credit - this shows up in my account fine. The iphone keeps showing 'No Service' - I cannot make/receive voice calls / send text, never mind use internet (except thru Wifi). 


I have programmed the data settings correect data settings for giffgaff, but this shouldn't affect the voice calls??.

This fault persists even after syncing to iTunes / doing a soft & hard reset / toggle airplane mode / turn off 3G / firmware restore. 

I have tried the giffgaff sim in my old Ericsson phone and reception is 3-4 bars as normal. O2 status for this postcode is expected at 3 bars, and no recent network faults reported.

I am trying to use it in a iphone 3gs 16gb - formerly on O2, but now unlocked ... but SHOULD work anyway if still locked to O2?

Message 12 of 19
by: cdior86
on: 13/09/2011 | 17:10

Your probably having the exact same problem thats happened to me! I activated my sim back in June and it works fine in my Blackberry, I bought a 2nd hand Iphone 3GS off someone and the sim didnt work. at all... i tried syncing it, restoring the software, rebooting etc... Then I was told it needed unblocking, so paid £20 to get it unblocked.


Got the phone back and it recognised my giffgaff sim as 'O2-UK 3G' and allowed me to use the internet - download apps etc, but had no signal to make calls or texts and just said 'call failed'!


After hours of researching on the internet i got to down to the problem!... The phone had been barred/blacklisted! the person i'd bought it off had the iphone on contract and then reported it lost/stolen so he could claim a new one after i'd bought it which resulted in the phone being barred! hence no signal... effectivly it was just an ipod touch!


I rang O2 and gave them the IMEI number and they confirmed the phone had been barred to Orange...


So I have now had to pay a very clever man on my local market another £30 to get the iphone un-barred! he's had to send it off and i am due to colect it on Thursday so shall keep you posted if it works or not - he did advise me that as it was blacklisted by Orange then i'd only be able to use it on Orange! so i'll have to change network and try and transfer my number over.


If i was you, call O2 as Giffgaff dont have a number (stupid i know!) and give them your IMEI number and they will be able to tell you if the iphone is barred and to what network as well.


Hope this helps.

Message 13 of 19
by: topgunner
on: 13/09/2011 | 17:41
I hope the clever man at the market stall is not just giving the phone a new iemi number as that is very illegal with serious repercussions
Message 14 of 19
by: lauratall
on: 31/08/2012 | 22:36
Mines the same have you managed to get it working
Message 15 of 19
by: lauratall
on: 31/08/2012 | 22:39
I can make a phone call and send a text just can get on the Internet or connect to the wifi
Message 16 of 19
by: sophiaski
on: 16/11/2013 | 00:58

I just bought a second hand iphone 3, I had to unblock the phone and its working now, cant get giffgaff at the moment, but no problem I have Sky Wifi  and the internet

Message 17 of 19
by: gpw50
on: 16/11/2013 | 01:54
I think your fone my be blocked on the network ask a agent to check thi imei number for u hope u sort it as giffgaff is a good network
Message 18 of 19
by: gpw50
on: 16/11/2013 | 01:58
Sorry about my last comment I sent it hours ago but I updated my software to 4.3 and since then my galaxy s3 is a pile of junk and my comment arived bloody hours ofter I sent it hope Samsung sort this fast
Message 19 of 19