Samsung Galaxy SIII APN problems

[Anonymous]

I recently updated my Samsung Galaxy SIII (i9300) to a newer version of android. After I had updated I noticed I cannot use 3G, SMS messaging or calls. I presume there is something wrong with the apn I'm assigned to so I searched up the correct o2 pay monthly apn, I found that the correct one is mabile.02.co.uk so I went to check that I was using that one but when I opened the 'Access Point Names' menu I found that there were tow mobile.02.co.uk apn's (Neither of these seem to work) does anyone know how to fix this? Because at the moment I cant use my phone as a phone.

[Anonymous]

my IMEI starts with 356633 😕 is there anyway of recovering the sim? yeah i knew it was rooted but its been rooted for a while and its been fine its just the update that seems to have changed.

[MI5]

Well at least the IMEI is OK...
The SIM can't be recovered - It has to be replaced if it is faulty. Can you try it in another phone so we know if it's a sim or phone fault we are dealing with?

[Anonymous]

I tried the sim in an identical SIII and after unlocking the phone it asked me if i was on O2 Pay Monthly or O2 Pay as you Go, after selecting pay monthly all my texts came through (this phone hasnt been updated)

[MI5]

It's a phone issue then, clearly.
What update did you get....?

[Anonymous]

4.3 i hadnt realised its not completely working yet, it just said there was an update available, i should have searched it up first 😕

[MI5]

No, It's working fine. Millions have it worldwide already.
Is it MK6 ?

[Anonymous]

is that in the 'About Phone' section in settings if so where does it say? the android version just says 4.3

[MI5]

Dial *#1234# and look at the firmware version.

[Anonymous]

i cant i dont have mobile network 😕

[MI5]

You don't need a network for that, it's just a USSD code that reports internal phone info.