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

Yep, they are clueless and told me to do all the usual stuff like resetting my network settings etc. I normally use my wifi at home and it’s slow also. Like really slow.

I tried using online speed test and it’s so slow it won’t even show me complete results, my Samsung is almost 10 times faster.

Speeds are completely controlled by your cellular provider based upon your rate plan, congestion at your cell tower, your data usage to date, etc.

Were this a universal issue, we would see many, many more complaints here.

For example, this is pretty much what I've seen for years across multiple iPhones:

There are two separate issues, as far as I know.

5G is often slower than 4G unless you are in 5G UWB. Here’s why from 9to5mac:

[DSS 5G] reuses parts of 4G channels for 5G. Phones will automatically prefer a 5G network over a 4G one, so Verizon customers will see that coveted 5G icon pop up. But it’s all for show. Our most recent tests, using an iPhone 12 Pro in New York City, show that DSS 5G is frequently slower than 4G, and rarely faster. These results are similar to what we saw in October in Chicago with a Pixel 5.

Another issue, which people on different carriers are facing, is that with some models of the iPhone 13, even with 5G turned off, you could have a great 4G signal and have virtually no data.

I have been taking screen shots of this when I find such an area:

Here I had four bars of 4G and barely any data.

So I agree, the first issue is with Verizon, but the second issue seems to be an iPhone 13 issue.

I just upgraded to iOS 15.1 and I’m hoping this issue was addressed.

1. Verizon told me it was a “known issue.“

2. I see the same issue being discussed on the other carriers.

3. Upgrading to 15.1 made it slightly better, but as others have mentioned it seems to vary from time to time and place to place.

4. Each time it happens (bad data transfer with good cell signal) I do a speed test and take a screenshot. It is crazy how slow it can be, between one and three down.

Here’s a screenshot from one today that had three bars of 5G:

I think apple needs to do something about this since it seems to not be some single occurrence. It’s pretty disappointing spending $1500 on a new phone to have it be a downgrade from old phone. I’m on V15.1 and still having random dropouts with full signal bars.

Who is your carrier?

I had this exact same problem and I was with Verizon. It was dismal!

For cost reasons, I switched to T-Mobile and the problems went away.

I have no idea what the real problem is, but based on my own experience, I wonder if the issue was a compatibility issue with the new iPhone 13 Pro Max and Verizon? I know that sounds unlikely but when I switched to T-Mobile, the problem went away and my speeds were fantastic!

if you come back and say that you’re with Verizon, then this is going to further my belief it’s a Apple/Verizon issue. But if you come back and say you’re with T-Mobile…then I have no idea what’s going on!

Ok, I just had to see if anyone else out there in the world of iPhone aficionados, is having the same problems… after upgrading to the new 13 Pro Max, it seems to be be running slower than my 11 Pro max !? 🤦🏻‍♂️🤷🏻‍♂️ I’ve tried the basic tech remedies, resetting my network, restarting my phone , etc.. and nothing seems to be helpful!?

Well they have to do something because it’s not the carriers think about it all old phones were faster and now all towers suck because iPhone 13 was made ??? it’s the actual iPhone13 that was made during COVID - 19 So maybe the team was kind of sick and didn’t think right on the speed of the phone !!

I upgraded from the iPhone 12 Pro Max to the IPhone 13 Pro Max and now my Data is broken. I travel from the US to Mexico very often. When in Mexico I used to get LTE service using Data Roaming (it is the highest available in most cities). Now that I’ve upgraded my Data Roaming hits 3G at the most and it is super slow. When I’m back in California my phone only gets 4G/5G in places where I used to get 5G E. I’ve tried everything, like new SIM card, latest iOS, reset network setting, restarted phone without a backup and nothing is fixing this issue. Something needs to get done FAST!!

There are a number of reasons this could be happening, the usual one being the carrier's databases haven't been updated to recognize iPhone 13s as being able to handle high speed data yet so they default to the slowest common mode available to all devices.

There are also additional possibilities due to the aforementioned databases, such as putting you in the "throttled data" category because again, your hardware is "unknown."

Regardless, the fix lies with your cellular carrier.

Same here… so disappointed and regretting getting this phone. I do a lot of work on my phone when I am at home and I can’t use IPhone 13pro for it, I have to rely on my 4 year old Samsung instead. iPhone is moving with a speed of a snail comparing to it. I’ve tried everything and it’s still so slow it boils my blood