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Level 1

9 points

"This device can perform faster...." - but can it really?

Ok, seems like my iPhone 3G does not really support USB 2.0. Every time I plug it in I get the "This device can perform faster..." message indicating that it is running in USB 1.1 mode - even though the port is USB2.0 and if I plug in a USB2.0 external drive into the same port it works like a charm (at full 2.0 speed).

Give how unstable iPhone's been and how often it requires a full reload, USB1.1 speed is just too painful.

Anyone else run into this? Any suggestions on how to make it run at full speed?

Thanks.

Message was edited by: Hichhiker

Windows XP

Posted on Aug 21, 2008 12:13 AM

21 replies

Nathan C

Level 5

6,260 points

Aug 22, 2008 6:38 AM in response to Hichhiker

Hichhiker,

That sounds like something interupted the sync while data was being written to the iPhone, and it caused some corruption.

Remove the synced data, and sync it back over to the iPhone or iPod and it should clear up.

It isn't a DRM related issue, it is an issue with the transfer being interrupted. The thing is often if it happens once on a given computer, it will happen again. However, if you take the same device and start syncing on a different computer with different USB drivers or chipset the issue will clear up and not reoccur.

Hope this helps,

Nathan C.

Merndog

Level 1

0 points

Aug 30, 2008 6:46 AM in response to Hichhiker

I had this same issue. Are you using an iPhone dock? I found that when I eliminated the dock and just used the USB cord, this message no longer popped up.

Hichhiker Author

Level 1

9 points

Aug 30, 2008 11:46 AM in response to Merndog

Merndog wrote:
I had this same issue. Are you using an iPhone dock? I found that when I eliminated the dock and just used the USB cord, this message no longer popped up.

No, no dock. I am using the cord that came with the iPhone. I tried one that came with my Video iPod too, same thing. I gave up though - I guess can live with it being slow for time being. Given that it needs to be plugged in twice a day just to keep it charged, might as well leave it plugged in overnight.

For what its worth, it seems to be working full speed when I plug it into my laptop, so I am still thinking something about the driver on my PC is screwed up, but as there is no real info on the driver, not much can be done.

-HH

Hichhiker Author

Level 1

9 points

Aug 30, 2008 12:40 PM in response to DJRumpy

DJRumpy wrote:
You should stop torturing yourself. Your iPhone isn't the only place your data is stored. It's also on your PC unless your specifically NOT syncing it.

You missing the point. I am very familiar with restoring iPhone from backup as I had to do it several times now. With USB1.1 speeds restore takes good part of a day - during which I am without phone. That IS the torture I AM stopping.

Your apps area also stored on your PC, as is your music. Your e-mail settings can be synced as well. Look in the device settings when it's connected. You will have an option to sync e-mail account settings.

But FYI, from my experience not all app settings are synced and email settings only sync if you want to overwrite Outlook on your computer (which I do not). Email accounts are the least of my worries though, It can be re-created in about 1/2 hour (really do wish apple remembered that there are TWO standard SMTPS ports - or at least let you specify yours BEFORE waiting for timeouts)

Connect your iPhone and from the file menu select "Transfer purchases from iPod" to make sure your PC has everything it should. You should also do a full backup before any upgrade.

If you happen to have a DRM issue, just re-authorize your computer. If your running windows vista and you have this issue, make sure you launch iTunes with Administrator access and re-authorize. I've had permissions issues with Vista that were resolved that way.

No Vista. And the DRM issues are on iPhone, not on iTunes. iTunes works fine, except for the occasional corrupting of the iPhone.

You really should upgrade to the latest version of itunes and stop manually trying various unsupported driver/iTunes configurations. Your probably creating your own headache.

You are missing the part where ALL those headaches predated me trying to do anything. They are the reason I was trying. And as far as I know, I am using a version fully sanctioned by Apple - 7.7.0 - last known working version. No "unsupported drivers or configurations".

There are millions of iPhones out there. How many folks in your thread had a problem? Now figure out the odds of it happening to you. 😉

Apparently 100% (funny how easy it is to gauge chances of something that already happened)

Chances of it happening second time: 100% again

Chances of it happening third time: not tempting fate anymore.

-HH

icebike

Level 3

740 points

Aug 30, 2008 2:24 PM in response to Hichhiker

Hichhiker wrote:

For what its worth, it seems to be working full speed when I plug it into my laptop, so I am still thinking something about the driver on my PC is screwed up, but as there is no real info on the driver, not much can be done.

-HH

You mentioned upgrading the driver on one port, but still seeing slow speeds on the other port. How about creating a checkpoint on your machine and upgrading the drivers on ALL the USB ports? Two different driver versions can't be good.

There are of course, some USB chipsets that are just buggy. Maybe a drop in card would help.

Dec 7, 2008 7:10 AM in response to icebike

Had similar issues, under Win Xp my iPhone 3G could not sync up at USB 2.0 speeds, under ocassion when it did there would be comm errors. All my other devices could sync at USB 2 with no issues. After struggling with BIOS upgrades and driver upgrades for months I decided to buy a $7 USB card 5 ports with a non Intel chipset and finally solved the issue. I think it uses a NEC chipset. I loaded a utility off the net called "usbview" and confirmed I am syncing at USB 2.0 speeds. Note with "usbview" the periperals under "Enhanced USB controller" are USB 2.0. Don't forget F5 to refresh. Good luck.

"This device can perform faster...." - but can it really?