iOS 5.0.1 SIM card not detected

When you upgraded your 3GS which was hacked to unlock, it was re-locked to the original carrier it was locked to. There is nothing that can be discussed in this forum that will unlock it again - you're on your own with that.

FYI, all iPhones nave a "baseband" which is the firmware that controls the radio in the phone. The baseband versions changes when updating the iOS but gets altered in some hacking/jailbreaking/unlocking procedures that can screw things up in the long run.

first of all im Saudi & i live in Saudi Arabia ( no locked iPhones or Carriers )

Lets start 😝

im ****** off , i bought my iPhone 3GS 2 years ago & its factory unlocked ( i've updated so many times is was O.K ) now when i upgraded to IOS 5.0.1 the issue ( no sim card ) appears

there is'nt any locked iPhones in Saudi Arabia

Now, what shall i do ? wait for the new frimware !!

thanks indeed Apple ._.

for me it says the same thing 😟 i can't activate my iphone

Try connecting to iTunes with an internet connection on. It should work fine!

hello

I tried so hard to fix this issue , I can't even get past the activation screens .

please notify me once you solve this issue regarding " No Sim Card "

Cheers 🙂

to the last posters: all different issues:

applizer: this has nothing to do with the phone been locked, if your phone was jailbroken once you have to try a reset to factory settings and hope that may solve the problem; if it has never been tampered with: this issue was known and the iOS 5.0.1 update should have it solved, but there are still a few clients who have this problem, Apple is working on it.

steffa921: I do not completely understand what you are trying to do, "activate" what? If you can specify your problem better, you have more chance to have someone with a solution here; was the phone jailbroken, was your computer once used to jailbreak a phone, was the phone locked once, etc?

amine: if you can'y get past the "activation screen" ? what?

for all who have iOS5.0.1 and still simcard issues:

there is a new modification for iOS5.0.1 for clients who have the No Sim Card issue:

http://www.appleinsider.com/articles/11/12/16/new_ios_build_meant_to_fix_iphone_ 4s_sim_card_issues.html

I also have this problem with my 3GS,

Heartbroken with no phone. If you can fix this please email me.

Thanks.

thanks man it worked like a charm i could not get my sim to work while all the other sim were working and its a officialy unlocked iphone 4 and tried your solution and network is back yayy thanks again happy new year

Same problem here in Greece.I have updated my iphone 3GS in the IOS 5.0.1 and it tells that there no SIM card detected!! The problem is not with the SIM card but with Apple!! I tryed 3 diferent new SIM cards and nothing! the cards work fine in another phones!! I have never jaibroken or unlocked or something else my iphone!! The problem was detected only when i updated to IOS 5.0.1!!! The result is that i have spend my holidays without my iphone for 10 days now!! Nice work Apple!! I'm Very Very Disappointed!! Thinking to buy another smart phone...

giannis: two remarks for you. First this forum is not Apple, only users here trying to help. Second, did you read this thread carefully? and the other threads with this issue? What did you try?

............

Am having similar problems - No SIM Card detected on upgrading to the latest software! Apple Support *****!

Another person having this problem here..... Is there anything that can be done?

I live in a southamerican country and bought the iphone 3GS to the oficial service provider who also is the second largest mobile services provider in my country and several others down here, so its as oficial as it can get. The phone had never been jailbroken nor any other funny business done on it, ever. Upon upgrading the phone to IOS 5.0.1 and started the activation process going through all the stepsno problem, on the final step, when it has to actually activate after setting dverything, it says no sim card is detected. I tried with another sim card, still didn't detected it. Tried conecting it to iTunes only to find the same message over and over.

I've done everything I can think of, including the solutions posted in this thread earlier, and nothing at all seems to work, at all. I'm going to take to the service provider amd techician and see what they tell me, but I'd rather either fix it myself or have a clue about whats going on, because I'm completly lost.

Thank in advance for the help!

After banging my head against walls for weeks after the 5.0.1 update on my 3gs and getting nowhere with the sim card not activate problem and after updating baseband downgrading firmware ect i put my vodaphone simcard in my wifes unlocked 3gs it took it for ages to recognise it but eventually did,as soon as i put it back in my phone it then registered straight away,i had already tried it in an unlocked nokia and it worked but not until i had put it in another unlocked iphone would it work,may of just been a fluke but its worked for me