So far there seems to be a tiny footnote that Apple isn’t really advertising. If I plug in the phone with a USB 3.0 Gen 2 cable it the phone comes up has USB 2.1. If plug the same cable in a drive I know that is USB 3.0 Gen 2 it comes up as that speed.
So it looks like to me the promise of faster USB speeds have a big giant asterisk on it that hasn’t been really forthcoming.
Posted Sep 27, 2023, 9:49 PM UTC
The iPhone 15 Pro's USB-C port is USB 3.2 Gen 2. Your 3.0 cable can't take advantage of the faster data transfer speeds.
I messed up the headline but a USB 3.1 Gen 2 is also a USB 3.2 Gen 2 cable.
Under the USB 3.2 specification, released 22 September 2017,[10] existing SuperSpeed certified USB-C 3.1 Gen 1 cables will be able to operate at 10 Gbit/s (up from 5 Gbit/s), and SuperSpeed+ certified USB-C 3.1 Gen 2 cables will be able to operate at 20 Gbit/s (up from 10 Gbit/s)
Ah 3.1, yep gotcha. Well that's weird. Is it a cheap cable by any chance? I'd imagine that if there's anything out of compliance about it, I could see the iPhone protesting even though a USB drive takes it just fine. I don't know, I'm just wondering aloud.
Even if I can only get the slower 3.1 Gen 2 specifications I should be getting that. I’ve double checked and my Motherboard ports are 3.2 Gen 2 (10 gbps). If it works for one device it should work on the iPhone and the cable is certified.
So (shrugs)
Looks like you're not the only one: https://forums.macrumors.com/threads/iphone-15-pro-usb-c-definitely-not-operating-at-usb-3-2-gen-1-speeds-10gbps-data-transfer-is-still-just-as-slow-as-usb-2-0-lightning-cable.2404020/
People seem to be getting different results from different USB cables, all of which are capable of transferring at 10Gbps but only some will do it with the 15. Weird. There must be something in common with the ones that work that we just haven't discovered yet.
Same here. I have three cables that will connect my MacBook Air to a SSD at 10 Gbps, but plug in the 15PM instead and the connection downgrades to 480 Mbps. Called Apple Care over the weekend & we weren't able to resolve it but they did say they had had similar complaints from other people.
I tried later to connect an SSD to the phone to see if that was faster but it wasn't, at least not when copying files using the Files app.
Yeah, something is either buggy or Apple is leaving off a giant asterisk.
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What are you using to report the type of connection?
For Windows you use Windows SDK’s USB View or download UsbTreeView.
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Yes.
Hopefully they fix this, spending AUD2.5K on a phone that transfers at USB 2.0 speeds make me feel like an idiot lol. The cable isn't the issue as others have mentioned I transfer at 10GBPS on other devices. SSD's etc.
I could not get my 15ProMax to connect at USB 3 speeds at all; it was limited to 480mbps. I just got off the phone with support and finally resolved this issue and it turns out that it was the VPN app on my phone. The senior advisor had a hunch and asked me to uninstall the vpn then restart the phone, and sure enough it's connecting at 10gbps now using a thunderbolt 3 cable (it still doesn't like my USB 3.1 cable, but my TB3 and TB4 cables both work). I have since reinstalled my vpn and restarted the phone and it's all still working correctly, so hopefully it will continue to work going forward. If you're still struggling with this and you have a vpn on your phone, try reinstalling. Good luck!
This seemed pretty far fetched, but it worked for me - although perhaps maybe just the reboot would've fixed it too.
Reboot alone didn’t work for me. It was one of the many steps we tried. It seems weird that a vpn app would have this effect but ¯_(ツ)_/¯