3G is not working after upgrade to iOS 9.3

OK; here's THE fix! I got it off the forum yesterday after going to ATT store and being told I had to take it to APPLE Store:

1. Turn Celular Data off

2. Turn Airplane Mode on

3. Power iPad off

4. Wait 1 min. (Approx)

5. Power back on, turn cellular data on

6. WALA!!!

worked for me!!!

I got "support" from Apple today and they advised me to setup my iPad 3 from scratch. Still the same problem.

I also tried the hint given by "BEACHBUM 8". Still the same problem.

I absolutely agree with "Katfish 711" - SHAME ON APPLE FOR DAMAGING MY IPAD!

That"s right. So true. I tried several other functions on my iPad 2 that worked very well before iOS 9.3 update. They are all messed up at the moment. The whole 9.3 is a big mess. The mess that was impossible to imagine a few years ago. What"s going on Apple? Need someone who knows the systems and can produce a decent code? May be I should teach you how to test your software? Any IT proffesionals out there? I am questioning my fiture Apple purchases. Especially iPads. Got one not properly functioning already. Would not go that pass again because I am getting recently no joy from buying apples.

Hi,

I am joining the '3G not working after iOS 9.3 update" club too.

The symptoms are the same stated above. The SIM number is displayed as 'Unknown', no carrier is detected, 'no service' instead of the usual signal strength line of symbols.

Actually removing and reinserting the SIM while the device is still on (hot swap) restores the SIM's functionality. However, if the iPad 2 is shut down and restarted, the issue returns.

So it seems that the SIM cannot be 'initialised' or 'properly detected' when the device is starting up. Maybe the action of removing and reinserting the SIM kind of forces the detection.

I am happy that at least a workaraound exists, so that I can continue working. I'd be happier if this bug would be fixed asap.

Best regards

Thank you SO MUCH for this post! I tried your second option (I couldn't seem to pop my SIM card out) and it worked immediately...

I just updated my iPad 2 to 9.3.1 and afterwards No Service for 3G. I tried your second option and have service again.

I've had several conversations with Apple Support after the previous 9.3 update and they walked me thru taking a "trace" of activity and dumping iPad 2 content in to a zip file which they have, but I've not had an update from support.

Has anyone else opened a problem with Apple Support?

After using the workaround and getting 3G working, if I then power-off and power-on 3G stops working again...this is definitely a problem that needs fixing. Following your workaround again and I have 3G working again. Hopefully someone in support/development is watching this forum and this problem.

I have discovered a new solution, which helped in my case. (My iPad has a SIM card from Swisscom.)

Go to Settings - Mobile Data - Mobile Data Options - APN Settings.

Then delete the contents of the two fields Username and Password.

Now the communication via 3G works again!

how did u downgrade to ios 9.2.1 ?

Hi,

Just follow the steps noted in this link http://osxdaily.com/2016/03/22/downgrade-ios-9-3-back-to-ios921/ but just make sure that you download the correct IPSW file for your device from the link given in the procedure.

Hope this helps.

P.S.: Should also work for the iPhone 5

This definitly worked for me. I found that I did not actually need to switch on airplane mode. Just cellular off, power off, power on, cellular on. My contact with apple support wants me to get a new sim from att. I may do that, but I have my doubts about that fixing it.

Downloaded and installed 9.3.1 on my iPad2 this morning.

After the usual DL, prep and install process the iPad restarted itself and promptly lost cell service AGAIN.

Apple, seriously???

Planning on on heading to the retail Apple Store and politely demanding they provide a free SIM card replacement tool until corporate can get their **** squared away!

Thanks so much, Mikec1951! My beloved companion works again lol 🙂

I have read all of the posts and have tried all of the solutions listed. Removed the sim card several times with all options and have placed it in airplane mode and not, turned cellular data off and on and after all of this I still have got no network connection. Even went down to ATT and had them switch out the SIM card. No luck. Anyone got another tactic besides getting a new ipad? This just might be an Apple ploy to upgrade!

I tried a lot of different things and sequences. What I finally arrived at was the iPad needed to have cellular disabled when it was powered on. Then when once powered on I enable cellular and it works. If I power down with cellular on it will "no service" when I power on.

This worked for me too. Thanks. A hassle to turn off cellular data before turning power off on the iPad. But a least we have a work around until a software update is posted.