iMessage Not Working? Here's How I Fix It Every Time

There's a special kind of dread that hits when you send a text and it turns green. Or worse, it just sits there forever with "Not Delivered" underneath it, taunting you.

iMessage works flawlessly right up until the one moment you actually need it, and then it decides to take the day off.

I've been through this more times than I'd like to admit, and over the years I've built up a little mental checklist I run through whenever iMessage starts acting up.

Good news: it's almost never anything serious. Most of the time you're back to blue bubbles in a couple of minutes. Let me walk you through exactly what I do, in the order I do it.

First, make sure it's not Apple's fault

Before you start poking around in your settings, do yourself a favor and check whether the problem is even on your end.

Sometimes Apple's servers go down, and when that happens, nothing you do on your iPhone will help until Apple sorts it out.

Open Safari and head to Apple's System Status page. Find iMessage in the list.

A green dot means the service is up and running, so the problem is something on your device.

A yellow or red marker means Apple is having issues, and your only real move is to wait it out.

Honestly, this thirty second check has saved me from a lot of pointless troubleshooting.

Check that you're actually online

iMessage needs an internet connection to do its thing, whether that's Wi-Fi or cellular data. If your connection is spotty, your messages have nowhere to go.

Open Settings, tap Wi-Fi, and make sure it's on and connected to a network that actually works.

No Wi-Fi around? Turn on cellular data instead. Then load any webpage in Safari to confirm you're really online. If the page won't load, that's your real problem right there, and fixing your connection fixes your messages.

Update your iPhone

A surprising number of iMessage gremlins are just plain old software bugs, and Apple patches those in iOS updates. Running the latest version is one of the easiest fixes there is.

Go to Settings, tap General, then Software Update. If there's an update waiting, download and install it, then restart your iPhone once it's done. I keep my iPhone on the latest release for exactly this reason. Half the weird issues I used to chase down just stopped happening once I stopped putting off updates.

Set the date and time automatically

This one sounds random, but stick with me. Apple's messaging service checks your date and time during activation, and if they're off, iMessage can quietly refuse to cooperate.

Open Settings, tap General, then Date & Time, and turn on Set Automatically. While you're there, glance at the time zone to make sure it's correct. Letting your iPhone handle this on its own is the safest bet, and it takes two seconds.

Turn iMessage off and back on

The classic. There's a reason "did you try turning it off and on again" is a joke, and it's because it works.

Head to Settings, tap Apps, then Messages, and switch iMessage off.

Now wait a few minutes. I know that's annoying, but give it a real five minutes rather than flipping it right back. Then turn iMessage back on and let it activate.

This little reset clears up temporary syncing and activation hiccups more often than anything else on this list.

Double check your Send & Receive settings

If your messages are going out from your email address instead of your phone number, or iMessage looks grayed out, your Send & Receive settings are probably the culprit.

In Settings, go to Apps, then Messages, then Send & Receive. Make sure your phone number is checked, and look over your Apple ID email addresses while you're in there.

Under Start New Conversations From, pick your phone number. Personally, I always set mine to the phone number so people see my texts coming from the number they actually have saved for me.

Sign out and sign back in

If you're still stuck, reconnecting your Apple ID can clear up account and activation problems that the simpler fixes miss.

Go to Settings, Apps, Messages, then Send & Receive, and tap your Apple ID at the top. Choose Sign Out, restart your iPhone, then come back to that same screen and sign back in.

It feels a little dramatic, but it gives iMessage a clean handshake with Apple's servers.

Make sure SMS, MMS, and RCS are on

Here's the deal even when iMessage is being difficult, you still want your texts to go through somehow. These settings let your iPhone fall back to your carrier so a message gets delivered as a regular text instead of just failing.

In Settings, go to Apps, then Messages. Turn on Send as SMS and MMS Messaging. Then tap RCS Messaging and switch it on if your carrier supports it. RCS is the one that makes texting Android friends feel a lot less like 2010, with proper typing indicators and higher quality photos, so I leave it on.

Reset network settings

Still no luck? Time to clear out your network configuration, which can get tangled in ways that quietly break iMessage.

Go to Settings, General, Transfer or Reset iPhone, tap Reset, then Reset Network Settings. Enter your passcode if it asks, and let your iPhone restart. Quick heads up: this won't touch your photos, apps, or personal files, but it does wipe your saved Wi-Fi passwords. So make sure you actually know your Wi-Fi password before you do this, because you'll be typing it back in.

Maybe it's just one person

Before you assume your iPhone is broken, check whether the trouble is only with one contact. Sometimes the problem isn't on your side at all.

If iMessage works fine with everyone except one person, they might have switched to an Android phone, changed their number, or turned iMessage off on their end. Try texting a few other people to confirm everything else is normal, then just ask the person directly if anything changed. You can also delete the old thread and start a fresh one with them, which sometimes shakes things loose.

When all else fails, call in the pros

If you've worked your way down this whole list and iMessage still won't behave, it's probably something deeper, like an account, activation, or hardware issue. That's when I stop tinkering and reach out to Apple Support. They can run diagnostics you can't, and check whether something is wrong with your Apple ID or the device itself. No shame in it. Some problems are theirs to fix, not yours.

Look, I'm not going to pretend iMessage never frustrates me, because it does. But in all my years of green bubble panic, I can count on one hand the times I actually needed Apple Support. Nine times out of ten, it's one of the quick fixes near the top of this list, and you're back to blue in a couple of minutes.