iPhone 12 Pro - strange RF issue

Forums › Apple iOS and devices › iPhone 12 Pro - strange RF issue

Aucklandjafa

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#290710 29-Nov-2021 21:16

Hi team

When I’m at home, I can only get 3 bars of 3G, when other iPhones (and my iPad) happily sit on 2 bars of 4G (all on Spark) - work android phone also locks on 4G easy.

Haven’t seen anything online, but I did a soft reset (up, down, sleep Botton) and voilà my phone picked up 2 bars of 4g too, before dropping back to 3G 30 mins later.

don’t have an issue at home as I’ve got the wifi, but not ideal knowing it’s potentially not using 4g when it can be.

phone works fine in the CBD, so thinking it could be a 28 band issue.

running iOS 14.8 - am yet to see if iOS15 would change anything

any help would be appreciated

Linux

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#2821258 29-Nov-2021 21:27

Why are you running an older iOS version? First thing I would do is update

Aucklandjafa

395 posts

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#2821268 29-Nov-2021 22:08

I’ve found that iPhones operate/run best on their original release software - this is my 8th one. If there was a known issue for the 12, and iOS15 fixed it, then I’d totally upgrade

MaxineN

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#2821270 29-Nov-2021 22:16

iOS 15.1.1 includes many fixes including call issues and modem firmware upgrades, security fixes, features and optimizations.

Well worth having!

Also do you have another iPhone 12 Pro to compare? What are the other devices that do not have issues + carriers?

Ramblings from a mysterious lady who's into tech. Warning I may often create zingers.

Nate001

640 posts

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#2821292 30-Nov-2021 00:12

Aucklandjafa:

I’ve found that iPhones operate/run best on their original release software - this is my 8th one. If there was a known issue for the 12, and iOS15 fixed it, then I’d totally upgrade

Can't tell if you're being serious, or taking the mickey...

freitasm

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#2821347 30-Nov-2021 08:47

I have removed quite a few off-topic comments.

For what is worth, I'd recommend using the latest iOS as it introduces changes that can impact radio performance.

michaelmurfy

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#2821351 30-Nov-2021 08:53

Your statement is 100% false regarding software. It is vitally important to keep your phone up to date as these updates have improvements, but also security fixes and baseband firmware (the thing that gets you online). Also apps are developed for the newest versions of iOS therefore you holding back means some apps may not work as expected.

So, update your phone. I can tell you now as an iPhone 12 Pro user myself iOS 15 comes with improvements and doesn’t effect the speed of the phone at all. And considering these updates come with baseband firmware this may solve your issue. But I seriously don’t want to see any more threads opened regarding phone issues if you have not run a software update as it just wastes time.

Michael Murphy | https://murfy.nz
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#2821897 30-Nov-2021 17:33

Well that should be the very first you do so now you can investigate further!

Are the other iPhones in the house the same model?

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RunningMan

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#2821905 30-Nov-2021 17:49

Not saying whether or not this would affect the OP's issue, but iOS 15 is the first from Apple where they are continuing full support of the previous release (14.8). You can remain on 14.8.x and still get security and bug fixes. Obviously you miss out on all the new features.

I'd recommend upgrading to the current release (15.1), but Apple does permit you to remain on 14.8 and get security updates.

https://9to5mac.com/2021/06/07/apple-will-let-users-stay-on-ios-14-and-receive-security-updates-even-after-ios-15-is-released/