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W810 slow usb speed ? |
Greffel
Joined: Dec 14, 2002
Posts: 28
From: Sweden
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On my comuter:
1. w810 using Myphone app transfer speed -------> around 100kB/s
2. K750 using Myphone app transfer speed -------> around 350kB/s
So is this a fact for all with w810??
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blackspot
Joined: Sep 06, 2004
Posts: > 500
From: Philippines
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AFAIK, both K750 & W810 are using USB 1.1 which could give you a max burst of 12Mbit/s or approx 1.5MByte/s (but I could be wrong). The slow transfer speed is most probably a firmware issue.
The card reader has nothing else to think about so it's easy to achieve very high transfer speeds.
resistance is futile. |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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no, the slow usb in K750 and W810 is due to the use of serial emulation (both are way slower than USB1.1 even which btw is not 46Kbps but 1.5MBps). Although the phones are classed as USB2.0, SE have not used the USB2.0 HIGH SPEED bus for these phones.
Disappointing really.
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File System Tweaks for the K750 K750 Tricks
[ This Message was edited by: max_wedge on 2006-07-18 14:33 ]
[ This Message was edited by: max_wedge on 2006-07-19 07:55 ] |
TeenInvader
Joined: May 13, 2005
Posts: 398
From: South Africa - Jo'burg
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Really disappointing. Especially since they always stress the point that you can use upto 2G on some fones.
It all becomes impossible unless you have a card reader. |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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It's better than the K700 (about 8-10 times faster maybe), but still disappointing.
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xan K
Joined: Jun 15, 2006
Posts: > 500
From: Republica Dominicana
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that's why I've noticed that even  claims that it is USB2.0 it didn't come close to the speed I get from a card reader. it's way faster than a K700 but it should've been faster since you can transfer big files if you have a big memory stick.
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blackspot
Joined: Sep 06, 2004
Posts: > 500
From: Philippines
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Out of topic but I think this is important:
I just want to clarify the use of the units for transfer rate. They are usually rated in bits per second or bps, i.e: Kbps = kilo bits per second, Mbps = mega bits per second. Note the small "b" that means bits. Sometimes it may also be written in bytes per second, which is confusing because 1 byte = 8 bits. I don't know the standard but I think bytes per second is written as "Bps", i.e.: KBps = kilo bytes per second, MBps = mega bytes per second.
USB 1.1 is 12Mbps (mega bits per second) which can be also expressed as 1.5MBps (mega bytes per second)
resistance is futile. |
slugworth
Joined: Jul 19, 2006
Posts: 400
From: UK
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hey guys
the transferse on phone to usb is a long one pc to card reader is faster and more stable plus its basic
my 800 pc2phone is very slow even with a dual core phone cpu to slow |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Quote:
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On 2006-07-19 02:57:55, blackspot wrote:
Out of topic but I think this is important:
I just want to clarify the use of the units for transfer rate. They are usually rated in bits per second or bps, i.e: Kbps = kilo bits per second, Mbps = mega bits per second. Note the small "b" that means bits. Sometimes it may also be written in bytes per second, which is confusing because 1 byte = 8 bits. I don't know the standard but I think bytes per second is written as "Bps", i.e.: KBps = kilo bytes per second, MBps = mega bytes per second.
USB 1.1 is 12Mbps (mega bits per second) which can be also expressed as 1.5MBps (mega bytes per second)
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yeah sorry 'bout that - typo - I meant to write 1.5MBps. You are right the big B is bytes, the little b is bits. The standard is by no means ratified by all players - so there often is confusion. The Big B little b is the best standard to conform to IMHO.
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Greffel
Joined: Dec 14, 2002
Posts: 28
From: Sweden
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Still lets hope it's a firmware thing as the K750 transfers at the right speed, or maybe a usb cabel driver.
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max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Quote:
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On 2006-07-19 10:43:18, Greffel wrote:
Still lets hope it's a firmware thing as the K750 transfers at the right speed, or maybe a usb cabel driver.
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I'd say it has to be a driver issue - surely it's not intended.
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slugworth
Joined: Jul 19, 2006
Posts: 400
From: UK
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remember it all is about ur system to, read write speeds  how many other programs, USB devices etc |
blackspot
Joined: Sep 06, 2004
Posts: > 500
From: Philippines
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Yes, but those factors couldn't be the cause for the slowdown of the transfer speed of the two phones. He's using the same system and same cable on different phones.
resistance is futile. |
blayv
Joined: Oct 24, 2004
Posts: > 500
From: Srbija
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Has anyone come up with the solution yet?
(as max wedge stated usb1.1 can't be guilty for this, since transfer speeds are WAY lower than usb1.1 speeds) 
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mobilemodman
Joined: Jan 01, 2007
Posts: 296
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I also think it has something to do with the data cable, coz i tried transferring stuff using the cable i got with my P990 and it is slightly faster than the W810 cable, might be sumthing to do with that chunky thing in the cable???
[ This Message was edited by: mobilemodman on 2007-04-24 03:30 ] |
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Posted: 2006-07-18 09:52
