LTE/5G very slow afte upgradint to iphone 13 pro max

I’ve just upgraded from the 11 pro max to the 13 pro max Should say down graded to the 13 pro max it’s like a snail compared to the 11 pro max here are the speeds on my WiFi before and now it’s either a software problem in the phone or its just a complete disaster of a phone I’ve done all the stuff you have done too.

iPhone 11 Pro Max

iphone 13 pro max on my same WiFi at home

Not necessarily, broken firmware can reduce speeds and gain. My issues were it was full service and no internet,even if my friend next to me same service and iPhone 11. I still believe it has to do with ios trying to conserve battery and not giving the modem enough power to work properly.

Unfortunately It appears I’m having the same problem a few days later now and I’m not using any vpn of any sort nor do I have any 3rd party apps on my phone, I’ve contacted apple about it so I’ll keep you guys informed, I kinda wonder if it has anything to do with apples firmware or maybe something with the App Store, I’ve got tons of 5g coverage in my area (Denver) using boost mobile who is owned by T-Mobile and they have tons of 5g out here so it’s definitely not my carrier

Tons of 5G but you don’t know what slowdowns are due to carrier issues and to congestion deprioritization or throttling.

Boost notably now states that after 35 GB of data usage, accounts will be throttled to 2G speeds. Not may as it used to say, but will. Users who have hit that threshold say their speeds drop to 100-200 Kbps.

I don’t know if it’s still in the fine print, but Boost also used to state that if a T-Mobile tower was congested, data priority would be given to T-Mobile customers.

Note Boost is no longer owned by T-Mobile but rather they were purchased last year by DISH Network.

https://www.consumerreports.org/telecom-services/what-dish-acquisition-of-boost-mobile-means-for-consumers/

That’s different from the general case slowness people have been trying to narrow down here.

It could be the connections between Boost and Apple’s servers are slow or congested or an issue with one of the content cache servers in between.

I hate to repeat myself, but contact your cellular carrier and tell them about the issue.

Make sure you tell them speeds to other sites are OK, it’s speeds to the Apple Store that are slow so they can better diagnose the issue on their end.

You're repeating yourself because you're not listening. Our carrier hasn't changed. I have a s205G. Gf had an iPhone 11 pro max. No issues. She just got a 13 pro max. She was complaining about internet loading slow. I didn't experience it. I called it in to Verizon. They claimed no issues or that it was resolved. We were just at the gas station today I had full 5g she couldn't load anything until we pulled out of the gas station. Something is wrong with the iPhone 13 with regards to it's 4g/5g connection.

The iPhone 11 did not support 5G.

Different equipment at the cell tower, different configurations.

Even with LTE, the iPhone 12 and 13 support different LTE frequency bands, so you can have an iPhone 11 next to an iPhone 12 or 13 where the 11 has full signal bars and the 12/13 show one bar or drop the connection.

The phone is not at fault in these scenarios, it’s your cellular carrier.

And another thing. Based on your band listings, the newer phones have MORE bands. But the number of users is roughly the same, ie congestion hasn't really changed. Er go the newer phones should be BETTER at distributing the load, but at minimum should be as good as the 11, and the additional bands should make it better giving it more option to distribute but if the signal is worse on that band, then they shouldn't switch to a weaker band. If they didn't program it to prioritize the older bands for stability, and run an update later to add in the other bands in the optimization after the towers have been adjusted, thats dumb on apple's part as well, for adding bands and yet making service worse. Tower load is essentially the same, not that many new babies are using cellphones now.

I’m also having same random slowness issues on iPhone 13 pro max V 15.0 on T-Mobile network and even on wifi. This is compared to an iPhone X 14.X. I don’t think it’s a carrier issue since it seems to be on all carriers and wifi. I’ll upgrade to 15.1 see if it makes and difference and report back. It’s concerning so many people are having the same issue.

Thanks for the update. It's been hard to track for me because it's happening on my gf's iphone, and not my android. The screenshot accurately describes the condition she reports which is it says 5G and won't load things. When I check it or drive back to the spot she reported it, albeit at a different time, it seems fine.

Will try LTE/4G only and report back, since speeds were actually fine and if reliable, better than higher but unreliable speeds, as she isn't gaming or anything.

And stop saying its congested, the number of people on smartphones has not changed significantly. If it isn't working well, release an update to use old bands only until the update the towers then, the increased number of bands are useless if they don't work.

There's nothing for them to do.

A quick Internet search shows slow speeds and network connectivity issues are common on T-Mobile 5G UC networks because they turned on the service (so customers can see the new icons) before the towers have had the backhaul upgrades necessary to handle the traffic at speed.

Many people report driving five miles away so they are connected to a different tower and seeing much bettter results where their local tower is slow or repeatedly drops the connection despite showing full bars.

So basically tried to do everything I could possibly do and nothing works, contacted Apple and their fixes didn’t work. Went back to the store ( my carrier ) we tried their fixes and it’s all the same, wanted to get my money back and refund the phone but they can’t help because technically “phone is working” . Currently using my super expensive IPhone to take pictures and my 4 year old Android for everything else, work, browsing, social media etc.