Tuesday, February 13, 2018

iMessage on iPhone has serious design flaw causing messages to never be received.

A person who had recently obtained an iPhone found they weren't receiving text messages from some of their friends. These friends also had iPhones. With a little investigation it was found the problem is with iMessage, when the recipient of the message turns their data off.

For example, person 1 turns off their data on their iPhone as they've reached their monthly limit and don't want to incur excess data charges. Person 2 sends a text message using their iPhone. The message is sent using iMessage (you can tell as a blue bubble appears for the message) but the message is never received. The message just vanishes. The only clue the sender might twig something hasn't worked, is the message icon on the iPhone has a red exclamation mark. The problem is as soon as you go to see what the red exclamation mark means by opening text messages, there's no information and the red exclamation mark disappears. The iMessage that was sent but not received doesn't indicate any failure. It looks like it has been sent and received.

This means that if you have an iPhone and sent a text message to another iPhone, and iMessage is used, you won't necessarily know if the person received the message or not, if the person turns off their mobile data.

There's a few ways around this problem.

1. If you can send unlimited text messages with your plan you can turn of iMessage on your iPhone. That means every message is then sent as a SMS text message. The bubble around the text appears green.

2. If you know a person who is likely to turn their data off, after sending the text message as an iMessage (the message appears in a blue bubble) press and hold on the blue bubble. You'll then see an option to send the message as text (not an iMessage). This option will send the message again. From that point on any message you send to the person will go as an SMS text message and they'll always receive the message whether they turn their data off or not . Keep in mind picture messages require data but here we're discussing text messages.

3. Turn off iMessage if you're not sure a person will receive the message and turn it back on after sending the message. For example you know a person regularly runs out of data.

Whilst in an ideal world we'd all have unlimited data and this wouldn't be a problem, the reality is, different people have different plans. You can't anticipate what plan another person has, but you can determine what you do.

I don't currently have an iPhone, but in the past when I did, I decided to simply turn off iMessage as iMessage caused a number of problems. This is not a problem with Android mobile phones as they don't have iMessage. However, if a person transfers to or from using an iPhone from or to an Android, they won't know these problems exist and won't realise they're not receiving text messages.

Kelvin Eldridge
Online Connections
IT support.


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