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I've noticed that copying files to the phone (to storage card) via USB cable is painfully slow (as compared to say regular USB stick).
Would purchasing a high speed MicroSD (e.g. Sandisk Premier) help or is the phone itself the bottleneck?
Thanks!
Try connecting your phone as a mass storage device, if you haven't done that already.
You can select this when you plug in the usb cable.
Accessing the storage card is way faster then.
milan_ns said:
I've noticed that copying files to the phone (to storage card) via USB cable is painfully slow (as compared to say regular USB stick).
Would purchasing a high speed MicroSD (e.g. Sandisk Premier) help or is the phone itself the bottleneck?
Thanks!
Click to expand...
Click to collapse
I have purchased SanDisk Mobile Ultra (Class 6) and the performance increase in real terms is marginal!
milan_ns said:
I've noticed that copying files to the phone (to storage card) via USB cable is painfully slow (as compared to say regular USB stick).
Would purchasing a high speed MicroSD (e.g. Sandisk Premier) help or is the phone itself the bottleneck?
Thanks!
Click to expand...
Click to collapse
It would certainly help. Also search this forum for tnyynt's SD Tuneup cab. Note that installing that cab only makes much of a difference once you got a faster SD.
The transfer speed of the SD is limited for whatever reason, power preservation, whatever, it's limited to optimize for slower SD cards. So The SDTuneup cab ups this limit, meaning you will notice a much bigger speed difference when using faster SD cards.
i also find the msd card speed poor. especially when you open up a folder with a lot of images every image software takes minutes to scan the folder.
that is very lame
can anyone let me know if the rom used in the hd effect the speed of the transfer of files when the hd is connected to the pc as mass storage
since i got my replacement phone a few weeks back the sd transfer speed has been sketchy. im getting speeds of 32 kbs and im wondering what the cause is
windows 7 rc
the phone (hardware)
the phone (software)
the cable (my htc cable split so im using others)
the card (sandisk 16gb class 2)
so ive ruled out windows 7 rc as the slow transfer speed in consistant with xp pro home and a retail windows 7
at first i did think is was the cable but ive used a good few to try and see if this is the problem. the pattern of slow transfers run throughout the wires i have
i have tried another card in my phone and i got the same result
this leaves me with two possibilites
the phone hardware (oh and it hs newton rings) is screwed and i need a replacement
or
the phones rom is conflicting with the transfer somehow
can anyone tell me if theyve experienced drastic changes in the transfer speed depending on the rom used
Hi
Since i had a replacement from Orange a few weeks ago everything has been - well faster and without problems - and that is with the stock Rom. Loaded all my old apps and have no complaints. Will measure my transfer speed and let you know.
r
Andrew
-PiLoT- said:
can anyone let me know if the rom used in the hd effect the speed of the transfer of files when the hd is connected to the pc as mass storage
since i got my replacement phone a few weeks back the sd transfer speed has been sketchy. im getting speeds of 32 kbs and im wondering what the cause is
windows 7 rc
the phone (hardware)
the phone (software)
the cable (my htc cable split so im using others)
the card (sandisk 16gb class 2)
so ive ruled out windows 7 rc as the slow transfer speed in consistant with xp pro home and a retail windows 7
at first i did think is was the cable but ive used a good few to try and see if this is the problem. the pattern of slow transfers run throughout the wires i have
i have tried another card in my phone and i got the same result
this leaves me with two possibilites
the phone hardware (oh and it hs newton rings) is screwed and i need a replacement
or
the phones rom is conflicting with the transfer somehow
can anyone tell me if theyve experienced drastic changes in the transfer speed depending on the rom used
Click to expand...
Click to collapse
I've noticed transfer speed from SD to PC has become very slow, but this appears to coincide with some of the latest rom builds or possibly wm6.5.x. If you revert back to a stock rom the transfer speed is back to normal
Well SK Tools tells me the write / read to my Sandisk 16gig card is
Write 803.66 KB/sec
Read 6880.18 KB/sec
With data transfer via the cable to my laptop I used CrystalDiskMark to measure and the results were
-------------------------------------------------
CrystalDiskMark 2.2 (C) 2007-2008 hiyohiyo
Crystal Dew World : http://crystalmark.info/
--------------------------------------------------
Sequential Read : 6.376 MB/s
Sequential Write : 4.339 MB/s
Random Read 512KB : 6.383 MB/s
Random Write 512KB : 1.786 MB/s
Random Read 4KB : 1.245 MB/s
Random Write 4KB : 0.021 MB/s
Test Size : 50 MB
Date : 2009/12/23 9:04:00
To confirm I copied a 150MB film from the HD to to PC and it took 24 seconds.
I don't know if any of this helps but as said before I am happy with the speed.
r
Andrew
Micro SD HC 16GB Slow trnasfer speed
This is as confusing as it can get...
i can transfer 10MB under 2-3 seconds... but as soon as i go to transfer a 400MB video file i recored on my Samsung Epic in 720HD mode.. it wants to transfer at like 200KB/Sec.. like what's that about.... so i shoot a quick video... with file size of about 5MB.. and it transfered faster than i could blink.... Are these cards like some how restricted to make our larger file transfers a miserable hell to back up to the computer???
Any help wold be appricaited...
My system specs..
Windows Vista ultimate 64bit
Quad core 3.4Ghz ( That can't be an issues lol)
A gigabit mother board with USB 2.0 and 3.0 ( same results from both)
6GB DDR3 Ram
etc.....
Thax...
its the cable you are using
i tried using other cables to connect my hd to the computer and it is slow
and when i tried with the orignail it was faster
so i think you might need to buy a touch hd usb cable
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!
Hi just got my new nexus 7 and it's awesome but I got storage question.
I got the 32 gig and try to add some video s only to find that I quickly filled the damn thing. So I guess that I do need the USB otg, I have a 32 gig micro sd card and was thinking about buying a 64 gig card on cyber Monday.
So I have two questions:
Is there a difference in speeds between USB micro sd card readers?
Will the USB micro SD card reader limit the speed of the class 10 card?
Sent from my Nexus 7 using xda app-developers app
androidG said:
Hi just got my new nexus 7 and it's awesome but I got storage question.
I got the 32 gig and try to add some video s only to find that I quickly filled the damn thing. So I guess that I do need the USB otg, I have a 32 gig micro sd card and was thinking about buying a 64 gig card on cyber Monday.
So I have two questions:
Is there a difference in speeds between USB micro sd card readers?
Will the USB micro SD card reader limit the speed of the class 10 card?
Click to expand...
Click to collapse
hello mate, the speed is in the card not reader, use a class 10 card and that is all the speed you need otherwise the readers are pretty much all the same.
I am fairly sure the card reader itself has to support class10 (I suspect all modern ones do), and there is still the problem of the slowest part will still be the USB connection between card reader and the Nexus 7 - which is USB 2.0 (?) - although I'm not sure if class10 would saturate a USB 2 connection.
I would also try and get a mains powered one, not a USB powered one. I have 2 here and the USB powered one, with a wireless keyboard+mouse (Logitech MK520), + PS2 Joypad wired does cause a random reboot problem at times - possibly due to lack of USB power.
My mains powered hub is a cheap Xenta hub I got from Ebuyer and works a treat.
JohnRM said:
I am fairly sure the card reader itself has to support class10 (I suspect all modern ones do), and there is still the problem of the slowest part will still be the USB connection between card reader and the Nexus 7 - which is USB 2.0 (?) - although I'm not sure if class10 would saturate a USB 2 connection.
I would also try and get a mains powered one, not a USB powered one. I have 2 here and the USB powered one, with a wireless keyboard+mouse (Logitech MK520), + PS2 Joypad wired does cause a random reboot problem at times - possibly due to lack of USB power.
My mains powered hub is a cheap Xenta hub I got from Ebuyer and works a treat.
Click to expand...
Click to collapse
yeah I though about that but I will mostly be using this at the university and during rides and having an external hard drive kind of ruins the portability of a tablet and makes my laptop a better choice, but I want to play with my new toy!!!
I looked around the internet and from what I read is that usb 2.0 can go up to 37mb/s and even the SanDisk Ultra 64 GB MicroSDXC Class 10 UHS-1 Memory Card tops out at 30mb/s. however the microsd card reader can very in compatibility from just microsd to sdhc all the way up to sdxc so even though you dont need usb 3.0 for speed the only card readers Ive seen that support sdxc is the usb 3.0 ones (if you use any that don't know let me know. SDXC is the only format that can go above 32gigs
I think I'm going to go with Kingston MobileLite G3 Card reader i read this review legitreviews com/article/1977/1/ H
its pretty cheap and and I guess future proof.
Question about Keyboards
JohnRM said:
I am fairly sure the card reader itself has to support class10 (I suspect all modern ones do), and there is still the problem of the slowest part will still be the USB connection between card reader and the Nexus 7 - which is USB 2.0 (?) - although I'm not sure if class10 would saturate a USB 2 connection.
I would also try and get a mains powered one, not a USB powered one. I have 2 here and the USB powered one, with a wireless keyboard+mouse (Logitech MK520), + PS2 Joypad wired does cause a random reboot problem at times - possibly due to lack of USB power.
My mains powered hub is a cheap Xenta hub I got from Ebuyer and works a treat.
Click to expand...
Click to collapse
How well do keyboards work on the Nexus? And do standard shortcuts like copy/paste work as their normal shortcut keys?
How well do keyboards work on the Nexus? And do standard shortcuts like copy/paste work as their normal shortcut keys?
Click to expand...
Click to collapse
From my own testing, wired keyboards work best, just plug in and away you go. Wireless, I assume, will need Android to support the wireless adapter. I have the Logitech MK520, and the god-awful Microsoft Ergonomic 7000, and both worked fine with both the Keyboard and Mouse working well in Android 4.2. I also have a cheap USB mini keyboard I got from Amazon here,
http://www.amazon.co.uk/Leather-Keyboard-Compatible-Blackberry-PlayBook/dp/B008QBFFR8/ref=pd_ybh_2
Awkward because of the keyboard's cable + OTG cable sticking out, but it worked surprisingly well.
Just for completeness, I also tested a Xbox 1 & 2 wired Joypad, a Xbox Arcade Joystick, and a PS2 Wired Dualshock2, all worked well, especially in emulators that had hardware joystick options.
In the week I intend testing a couple of wireless adapters to try and better my internet connection from sat in bed - The router is located at the far side of the house and only gives me 2 bars.
Hope that helps.
Edit - Bloody Capchas. How long does this go on for ?
Instead of editing my post I thought I would post this to hopefully help anyone who is thinking of getting a OTG cable + keyboard + USB Hub.
This may have been my device, Android 4.2, a combination of my hub + keyboard + non-rooted Nexus 7, who knows, but I can reproduce this fairly easy.
Lets take a similar situation to what happened to me. I popped the Nexus in the wallet, connected up the keyboard, took it round a mate's house and showed him a 7" tablet and how it works. We surfed the net using the keyboard for typing websites, searches, forum posting. etc... I then went home, device is switched off with everything still plugged in. I unplugged the keyboard, took the nexus out of the wallet/case and switched it on but it didn't come on and I honestly thought I had bricked the device, or the USB port overloaded or shorted. Googled the problem and it turned out a few had similar problems and the answer was to hold down the power switch for 10, 15, 20, 30 seconds until you see the Google logo, the Nexus will then boot up.
Now I can reproduce this just like the above. For example, sit in bed, type this reply out on the keyboard, switch off the device, go and make a coffee, come back and switch on the device with everything unplugged and the Nexus will not switch on. No idea why, but every time I have to hold down the power button for at least 15-20 seconds. If I just switch back on the Nexus with the keyboard still plugged in then it works fine.
Now, thanks to someone on this board, I have now done a few backups of my device including the SDCARD, so I might unlock it + root it then try it again with the Nexus wiped clean and see if it still doesn't come on.
Like I said, it could be some bizarre hardware + software combo, or just hardware including hub, but I thought I would post this incase someone here switches on their device and it too doesn't come on.
Hello every1.
1) Does smartphone (Moto X Style in this situation) support read/write speeds of microSD cards like Samsung PRO+, or LEXAR 1000x? Can some1 confirm it with some sort of speed test? I understand that actual ~90MB/sek is possible with usb 3.0 adapter from card to PC, bus I am curious, what is the max read/write speed using this sort of card at Moto X Style? Will it transfer data with max speed, or just ~20-30 MB/sek like other cards?
2) Spend a lot of time reading about accessories, and I found out that there is problem with some of Aukey quick charge 2.0 power banks and car chargers. Can some1 write down what is best option for Moto X Style, that can fast charge this device using power bank/car charger?
I live in Europe, so I am interesting only in stuff that is sold in Amazon.co.uk or Amazon.de, not Amazon.com.
Thanks for hep.!
Don't know about the speed but I amusing Lexar 128GB micro sd card w/o any issues. I don't think card speed makes much of a difference as I have tried all different type of cards. It some what depends upon the phone/hardware writing mechanism. Here is a link to the card I am using:
http://www.amazon.com/gp/product/B00O1M21H8?psc=1&redirect=true&ref_=oh_aui_detailpage_o02_s00
I don't use power banks but no issues with OEM Motorola charger. I got one for work at Amazon:
http://www.amazon.com/Motorola-SPN5...44317585&sr=8-1&keywords=OEM+Motorola+charger
I'm using a Sandisk Extreme PRO 64GB card, and I do indeed get around 70MBps - 90MBps when writing to the card directly from PC --> microSD card. When copying from internal phone memory to microSD card, I get around 35-40 MBps. Though I'd suspect that's a limitation of the read speed on the internal memory, and not a bottleneck on the write speed of the microSD card.
Copying files over a USB cable or WiFi connection will obviously be limited by the max speed limit of USB 2.0, and whatever your WiFi connection can support. Overall, I'd say that spending the extra money for a fast microSD (instead of a standard-speed microSD card) card isn't critical. But it's a nice-to-have if you copy a lot of files to/from the microSD card (e.g. movies), and have the money to spend on it.
As for power accessories, I went with a:
* Tenergy combination wall charger + power charger:
http://www.amazon.com/gp/product/B00XK6YWM8?psc=1&redirect=true&ref_=od_aui_detailpages00
* Anker power bank battery:
http://www.amazon.com/gp/product/B013HSQXZC?psc=1&redirect=true&ref_=od_aui_detailpages00
All 3 of those charger items arrived, and work as expected. I can't say much about the longevity of those products, but I can say that I overall have good experiences with Anker charge products.
Thanks guys for answers.
As I see more than ~40 MB/sek its impossible to get when copying info from internal to external memory, but thanks!