Have an iPhone XR with no signal on O2? Download iOS 13.3.1 to fix it now

What you need to know
- Earlier this month some iPhone XR users started having problems on O2.
- They were suffering from a loss of signal and Apple said a fix was coming.
- With the arrival of iOS 13.3.1, that fix has now arrived.
Earlier this month we told you about a number of iPhone XR users experiencing signal issues when using the UK carrier O2. Both data and voice were impacted, and at the time Apple promised an update would get things back on track. That update is iOS 13.3.1 – and you can download it now.
While the release notes for iOS 13.3.1 didn't specifically mention that the O2 fix was applied, I've seen multiple instances of the official O2 Twitter account pointing people in the direction of the update.
Hi Billy, iOS 13.3.1 is now available to download. Go to Settings > General > Software update.Hi Billy, iOS 13.3.1 is now available to download. Go to Settings > General > Software update.— O2 in the UK (@O2) January 29, 2020January 29, 2020
Several "O2 Gurus" have also posted to suggest they've updated and all is well, too.
iPhone XR users - iOS 13.3.1 is here. Please install to fix the network issue. Me and my colleagues did ours this morning ☺️ #o2 #iphone #iPhoneXR pic.twitter.com/lpMteuIePeiPhone XR users - iOS 13.3.1 is here. Please install to fix the network issue. Me and my colleagues did ours this morning ☺️ #o2 #iphone #iPhoneXR pic.twitter.com/lpMteuIePe— O2 Guru Kettering (@GuruKettering) January 29, 2020January 29, 2020
If you're someone who has been having issues with an iPhone XR on O2, shout out in the comments and let me know how the update is treating you. I have my fingers and toes crossed for you!
Master your iPhone in minutes
iMore offers spot-on advice and guidance from our team of experts, with decades of Apple device experience to lean on. Learn more with iMore!

Oliver Haslam has written about Apple and the wider technology business for more than a decade with bylines on How-To Geek, PC Mag, iDownloadBlog, and many more. He has also been published in print for Macworld, including cover stories. At iMore, Oliver is involved in daily news coverage and, not being short of opinions, has been known to 'explain' those thoughts in more detail, too.
Having grown up using PCs and spending far too much money on graphics card and flashy RAM, Oliver switched to the Mac with a G5 iMac and hasn't looked back. Since then he's seen the growth of the smartphone world, backed by iPhone, and new product categories come and go. Current expertise includes iOS, macOS, streaming services, and pretty much anything that has a battery or plugs into a wall. Oliver also covers mobile gaming for iMore, with Apple Arcade a particular focus. He's been gaming since the Atari 2600 days and still struggles to comprehend the fact he can play console quality titles on his pocket computer.