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Reception problems with iPhone 3GS after upgrading to iOS 4.2.1

AFter upgrading to 4.2.1, my 3GS iPhone is experiencing bad signal, bad quality and frequent disconnections.
This was repeated even after my provider replaced my device to a different 3GS device, running 4.2.1.
inserting my SIM card to a NOKIA phone, showed strong signal and good reception.
Did anyone experience reception problems on 3GS running 4.2.1??
Thanks,

3GS, iOS 4, 4.2.1

Posted on Nov 29, 2010 2:34 PM

Reply
28 replies

Dec 5, 2010 10:12 AM in response to Zahiro2

Yes I have the same problem
I have phoned Apple and they are trying to sort it
But I get the feeling that they think
Its not widespread issue ?
I just don't think that the people who have upgraded
Realise they have an issue yet ;(
Come on Steve J
Help us out here ...
I have to put my SIM in a Nokia 6111 when I'm home
I didnt have to do that before 4.2

Dec 6, 2010 5:12 PM in response to Zahiro2

I too am having a problem with 3G and reception after updating to 4.2.1. Another thread suggested turning off 3G to work around the phone reception problem. This is the case for me as well. Turning off 3G restores reception. Turning 3G back on results in "No Service" after a few seconds. Edge doesn't appear to cause the problem.

The MMS suggestion did not work for me.

Apple, thoughts? fix?

Dec 7, 2010 2:23 AM in response to Zahiro2

I have the same issue after iOS 4.2.1 update. I am using iPhone 3GS officially unlocked by Apple. I tried using different SIM cards and both carriers show same problem when using phone in 3G mode. Phone falls back to EDGE mode showing 'E' from '3G' at start. I have reset the phone and rebooted several times and moved to different cell areas in the city just to verify the problem.

I had no such issues earlier. I also have Nokia E71 which shows full signal and has no such issues.

I have posted the bug on apple iphone feedback page. I hope they Apple will fix the problem and test the release properly on all models before releasing to public.

Dec 15, 2010 6:31 AM in response to mj72

I too am a Rogers customer and i can tell you this is all APPLE.. I have had 5 bars until I did the 4.2.1 update, my BB works perfect. My feeling is, Apple will not do anything to fix because they think it will force people to upgrade to the 4.. Not the case for me or many I know, it's ANDROID.. Apple really needs to get it's **** together and STOP blaming the carriers for the crappy devices they put on the market!!!!

Reception problems with iPhone 3GS after upgrading to iOS 4.2.1

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