slow data speeds through activesync - sd card - JASJAR, XDA Exec, MDA Pro General

now that 4 gb sd cards are becoming cheaper im having the frustrating problem of putting allot of information on my sd card quickly, apart from using a sd reader, How has the rest of this forum dealt with this problem?

Try this it's not free but does the job, a lot better than Active Sync
http://www.softick.com/pocket-pc/cardexport2/

ActiveySync, and Cardexport as well for that matter, are only using USB 1.1 protocol transfer speeds, even though it might appear as a USB2 device on your PC.
This is down to the HTC USB drivers on the device, so you will get at most 11MBit (and that's excluding protocol overhead) unless someone writes a new USB driver - which is extremely unlikely to ever happen...

Related

ActiveSync/USB slow/unreliable- worth getting a card reader?

With the issues i have using Activesync (losing connection and killing my USB internet connection) and the fact that large file transfers seem way to slow (even with USB 2), would a card reader for my PC (non USB, wired to motherboard) be much faster?
Thanks.
yes! it is definitly worth buying if you want to transfer large files.

T-Mobile Wing data transfer problems. help

hi, guys, i just bought the t-mobile wing and i have one problem with it.
I tried to copy some mp3 files to my wing using usb cable, the mp3 files
are about 128mb, however it took me 40 minutes to transfer them.
is this normal? how can i connect the wing as a " card reader ", the transfer
speed is way tooo slow, please help.
Thank You.
Mine copies slow too. When I want to dump a bunch of TV shows to it, I do it before bed time.
-c
I realize that if I use Activesync or Windows Mobile Device Center (Vista) to transfer files, it seems to be a bit slower than if I use WM5torage. Now, in general, I still think both methods are slow. I transfer everything through my media card reader which is heck of a lot faster. It'll easily rip 1GB within a couple of minutes to my Kingston 4GB microsd. My other alternative is to use my usb microsd card reader. I only use WM5torage and Activesync as my last resort. But honestly, after owning the Dash/Wing, I think HTC made a pretty slow card reader to begin with. I also think that the microsd card reader in the phone wasn't design to read fast anyway since it only supported up to 2GB back using WM5.

usb thumb drive instead of PC?

I tried searching to see if this has already been discussed, but like all vBulletin forums, the search function rejected USB and Pen (as in pen drive) and a few other essential but three-letter words. So I found zero.
I have a 4 GB USB U3 thumb drive that I always carry with me--until I lose it, that is. I would like to load it up activesync (or not--whatever works) and a whole bunch of files I want to install on my HTC Touch Pro (AT&T Fuze). I have a short cable with a male mini USB connector at one end and a female regular-sized USB connector on the other (so I can slip the male USB thumb drive connector into the cable and thence connect it to my TouchPro).
I'm not sure whether this will work, but it seems like it should. This way, I can carry with me all of my files-to-be-installed and work on customizing my fuze anytime, anywhere. I don't want to store the installation files on my micro SD card because that wee thing holds soooo very little. (i have a 32 GB F card and a 32 GB SD card in my iP 211.)
For starters, I can't even figure out how to install Windows Mobile Device Center on the thumb drive--the process keeps wanting to mess with the AS/Winmobile Device Center already istalled (and used for another WM device).
Maybe there's a way to do with without AS or the Device Center. That's fine with me. All I care about is having access to the many, many apps I have waiting on the flash drive.
Any ideas?
Thanks,
Sandra
Im no expert, but I dont think many devices have the capability for being hosts, meaning they cant have external memory devices attach except through the supplied card slot.
There are a couple out there which can handle it, but they normally come with a usb port built in. Otherwise I doubt its possible. I dont think its one of those things which can be programmed. Of course, I could be entirely wrong about it.
Edit: Ok, im completely wrong about it. I just found a web page through google saying that many devices with wm on dating back to Pocket PC 2002 do in fact have the ability to do it.
My bad. lol
http://www.mypdacafe.com/articles.php?id=219
See this threads for discussion on Touch Pro's USB host possibilities:
http://forum.xda-developers.com/showthread.php?t=411905
http://forum.xda-developers.com/showthread.php?t=411905&highlight=usb+host
sfrrr said:
I don't want to store the installation files on my micro SD card because that wee thing holds soooo very little.
Click to expand...
Click to collapse
What size do you have? They are currently available up to 16 gig, and 32 is coming. I keep all my cabs on my Sandisk 16. As for USB host, see the post above with the link to the thread. The chipset does not appear to support it. BTW, if you do a search on "USB host", you will find the thread.
I'm about to follow those links you guys recommended, but I wanted to say a quick thanks to you all. I didn't know anything about USB hosting, etc, and it's a whole lot easier to think anything is possible if you don't know anything than if you are well-educated. (OTOH, I suppose that that knowing might also inhibit experimenting which means you don't pursue new ideas. Hence the box we have to think outside of.)
Thanks again,
Sandra
I'd recommend a Trio adapter: Trio is not a brand name, just a mechanical name they have given this adapter. I had one made by A-Data and its awesome.
The adapter itself is an SD card that accepts a MicroSD on the side. However, the neat part is the fact that you can remove a piece and voila! you have a USB stick.
http://memoryworld.com/product_info.php?manufacturers_id=14&products_id=386 is the first hit from google. I bought mine from Newegg way back in the day. Sadly it was ran over when my phone was. The MicroSD card was good, but the adapter died. I am saving up to get the new SDHC version and a 16GB MicroSD card.
BE ADVISED: there are similar products out there called DUAL adapters: the memory is non removable in those. What that means is that there is no MicroSD card that comes out.
Enjoy!

USB data transfer speed?

Hi guys,
I currently have a XDA Orbit and I'm thinking about buying the Touch2. The problem with the Orbit is the combination of poorly accessible microSD card and veeery slow data transfer rate via USB. Unless this hasn't been improved dramatically in the Touch2, it would be no buy for me.
Does anyone have some MB/min data?
It depends on the connection mode choosen. When choosing to connect it as a "disk", copying a 142MB folder takes about 35s, so it gives about 4MB/s. It probably also depends on the SD card speed and number of files to transfer.
I use already for some yrs "tnyynt tune up". Install attached CAB. Also your PC has faster and slower USB ports, select the right one.
Assume you connect storage card directly to PC and not via phone because that goes much slower.....
Have used several HTC devices (with Mega software) and speed was never a problem.

HD2 USB transfer speeds?

I've looked everywhere. No one seems to have posted them. What are they?
Right now I'm a bit confused. Since this is an awesome device you'd think it would be fast in every aspect. It is, except for USB file transfers.
I'm running on Windows 7 Ultimate. I backed up everything from my phone to the computer with a data transfer rate from the SD card, in the phone, of 4.5MB/s. I then formatted the card (read earlier that this would help with the HD2 lock-ups) and copied everything back onto the SD card in the same fashion, through the phone. The data transfer back is right around 2.5 MB/s.... ???
I've tested all the ports around the computer, each are about the same. Anyone have any idea on how to fix this?
First thing would be to tell what kind and class of microSD card you have...
That would really depend on your SD card "class".
The higher the class, the faster it is capable of performing reading and writing operations.
But it's better to avoid the 16GB cards... the larger capacity cards take much longer to read... regardless of classifications or brand.
Something like a 4GB - Class 6 card is excellent.
I've read that it's only a class 2 MicroSD. Do you guys know where I can get class 4, or even a class 6 MicroSD? Whichever I get however depends on the max speed of the HD2. For example, I don't want to buy a class 6 and find out that the HD2 can only handle speeds up to the class 4. There is a $30-$40 USD difference.
Thanks for the SD info, it definitely helps. But now we're brought back to my original question. What are the max transfer speeds through the phone onto/from the MicroSD card? Has anyone found out?
personally i wouldn't do large data backups through activesync/MDC with the card still in the phone.
its simple to remove the card and put it in the supplied adapter card for use with sd_readers.
i bought a usb1.1 reader from a 'pound' shop, copying large files takes alot less time (average 10-11mb/sec) with my more expensive usb2.0 reader its even faster (average 50-60mb/sec)
card class does make a difference, but then so does sending large amounts of data through a 'middle man' like activesync or device center.
budget SD reader FTW
That is a good point, and I agree is faster than through the phone. For me though I have a few accessories on the phone which make taking the SD card out quite a pain.
I have an invisishield on the screen, and a poly-something or other high density plastic cover to replace the cover that came with the phone,-- It grips around the HD2 tightly. The cover is wonderful, but it tends to interfere with the invisishield. So if I am continually taking the cover on and off to get the SD card out I will eventually bend up the edges of the invisishield and will need to get that replaced.
In my best attempts to keep the phone nice I'm going to have to stick with whatever input/output the HD2-to/from-SD can give me.
choosing disk drive mode rather than active sync is the easiest way to speed up file transfers.
re: the figures you gave in post 1, write is always slower than read.
Forgot to mention, it was in 'disk drive mode'.
Btw, I found that the HTC HD2 is USB 2.0 Hi-Speed capable out-of-box. (I'd post a link, but forums wont let me, being new), and Hi-Speed USB can transfer 480Mbits/s, or ~57MB/s (Wikipedia, Universal Serial Bus, Signaling).
The Class 6 MicroSD card can write 48Mbits/s, or 6MB/s (Wikipedia, Secure Digital, Speeds). Easily obtained for the HD2.
Assuming this is everything that needs to be dealt with, this should work out wonderfully. I'll be writing files 300% faster with a class 6, and reading a whole lot faster (thanks Samsamuel, forgot about that read/write differences). Question is though, is this all? Or do I need to install some hi-speed usb driver on the computer? Or are there other things I'm not seeing that need to be dealt with?
its also worth remembering when you are doing the maths that USB loses around 25/35% to networking overhead. (the data that makes up the packet that holds the data you are transferring)
So, 480 Mbit = 60MBytes total = around 35Mbytes actual data transferred per second. (Results vary depending on the system, the cable, all kinds of things, but 30-35 is average, a little more in a testbed situation.
So I guess I'll just have to suffer with 219% faster instead of 300%... Well, looks like I'm returning the HD2!

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