Connectivity issues with Galaxy S3 (Calls ending immediately)

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Hi,

I bought a Galaxy S3 (SGH-I747M) about a month ago, and I've had a lot of connectivity issues. Previously, I had a Galaxy Ace II and had no problems for over two years.

Randomly, the phone will lose connection to the network. I still get full bars on the notification area, but I can't place or receive any calls. The phone will ring, but if I try and answer the call will immediately drop with a "Call ended" message. Likewise, if I try to call someone, the call immediately drops with the "Call ended message".
If I go in settings -> Call -> Additional settings I get the "Network or SIM card error" message.

I have tried the following things MULTIPLE times, so please don't suggest them to me again:

1. Rebooting the device. This usually fixes the problem temporarily, until it eventually happens again. Sometimes multiple reboots are required.
2. Set the phone to airplane mode then out multiple times has no effect.
3. Taking out the battery for an extended period of time has the same effect as rebooting would.
4. Taking out the SIM card and replacing it.
5. Cleaning the contacts on the SIM card.
6. Restore the phone to factory defaults.
7. Do a hard reset on the phone that erases everything back to factory default.
8. Disable GPS/Bluetooth/Wifi for an extended period of time.
9. Disable data on the phone. (My plan already has a data lock).
10. Update to the latest firmware with Samsung Kies 3 and OTA. Current firmware is PDAMK5/ Phone:MK5 /CSC:MK5 (KDO).
11. Force the phone to not use LTE, such as WCDMA.

Phone is running Android 4.3.

This is getting ridiculous. My wife is pregnant and I need to be able to take calls at all times without having to do some voodoo magic on a brand new phone.

Anyone has any idea what to do next?

Edit : I can send and receive text messages while the problem is going on.
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Frederic

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Posted 4 years ago

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Jonathan I, Mobile Master

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Well if you've tried all of the above then it sounds like something's wrong with the phone or your SIM card. Here's what I suggest:

Try out someone else's SIM card to see if you experience the same issues (I think this is what you meant by #4 but I wasn't sure). If it's still acting up, then obviously your phone's faulty and you can send it away to be repaired since it's under warranty. A loaner phone can be provided at a Koodo shop. Make sure you have your proof of purchase!

If the phone operates normally with someone else's SIM, then I think your SIM card is defective and you should get a new one. They cost $10 + tax. I would call customer service and see if they'll credit you the difference since it's not of your doing (as far as we know).

One last thing about #11: you're sure it's not set to GSM only?
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Frederic

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I tried every mode. I have not yet tried another SIM, as no one that I know has a micro SIM and are a koodo customer.
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Jonathan I, Mobile Master

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Ah, that's the last test to try before sending your phone out for repair. Try going to a local Koodo shop or retailer and ask them if you can test out a micro SIM of theirs.
(Edited)
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Timo Tuokkola, Mobile Master

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Several customers have been reporting similar issues since the last software update in early December. The problem is under investigation, but there is no permanent fix until Samsung releases a patch. In the meantime, turning flight mode on and off should temporarily resolve the issue when it happens.
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Frederic

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Is Koodo aware of this problem? This is ridiculous. A phone's basic function should be to place and receive calls without a workaround. I'll try calling customer support.
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Jonathan I, Mobile Master

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Unfortunately sometimes you get duds or software updates that can mess with that basic function.
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Timo Tuokkola, Mobile Master

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Koodo is aware of the problem, but as I stated: there is nothing they can do about it until SAMSUNG releases a patch. The problem is not with Koodo's network, their hands are tied.
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Timo Tuokkola, Mobile Master

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Just got confirmation that Samsung has started pushing out a fix for this issue.
Note: This update will be a staggered release over the air and is scheduled to reach all customers by May 23.

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