Database Users

Nexus one maximum transfer speed (using all methods)

hi, so ive been experimenting with transfer speeds to the SD-CARD with my nexus one.
so far i managed :
2mb/sec using the stock USB cable, with eclair, same with froyo stock kernel.
via WiFi tether and connecting a laptop to it, transfering files via FTP server on the android device
1.5-2mb/sec on froyo tethering
using the wifi tether app on eclair, around 600kb/s (fail? or maybe some cyanogen issues)
i recently upgraded to a CLASS6 transcend 16gb sdcard
yet the results are the same.
i tried a few SD-CARD testing apps, all results were around 2mb/s
is this some sort of hardware/software limitation?
did anyone get passed 2mb/s?
in theory my card should reach 6mb/sec write speeds.
so im hoping we can share our experiances.. and maybe come to some conclusion on whats going on, and finally put these issues to rest.

So you're trying to do what? You're on cellular, wifi, tethered, SD card speeds.....
I don't get the point.
If you're wanting to benchmark your SD card, maybe this program? I haven't tried it yet, just finally thought about searching. http://www.cyrket.com/p/android/performance.test/

You say "mb" which isn't correct for anything (unless you really mean "millabit"). Do you mean megaBIT (Mb) or megaBYTE (MB) / sec ?
I just ran several tests from this Vista PC using ADB Push to the SD card (a 16GB Class 6), and I see 9-13 megabit/second or 1.1 - 1.3 megabyte/second rates, at file sizes from 10 to 25 MB.
This is a Vista work PC, running around 40 applications, Symantec AV and Firewall and all manner of other crap. If I think about it, I'll pound out a test from a real computer later.

lol Why are you people giving him such a hard time ?
He wants to figure out the fastest transfer speeds. Who gives a crap about Mb Mb MB or benchmarking his SD.
N1 transfer speeds are slow regardless of the SD card. Im not sure why.
I would like to know if file transfers over USB , or Wifi result in faster transfers.
I think the OP is wanting to do the same thing.
Using the Websharing or FTP via Efile sometimes gave me better results than USB.

lol yea be gentle guys. But yea I remember reading that it's always gonna be slower using USB and Phone, it's better to take your card out and use a reader. It's usually at least 2 times faster when I take my SD out and use a reader

http://forum.xda-developers.com/showthread.php?t=628508
http://forum.xda-developers.com/showthread.php?t=691173
http://forum.xda-developers.com/showthread.php?t=656908
http://forum.xda-developers.com/showthread.php?t=669511
http://forum.xda-developers.com/showthread.php?t=662296
Those are just a few of many more, I am sure.
But none of the the existing Nexus One SD card threads are worded like " Nexus one maximum transfer speed (using all methods)", so lets just add this one to the pile please.

SabrWolf said:
hi, so ive been experimenting with transfer speeds to the SD-CARD with my nexus one.
so far i managed :
2mb/sec using the stock USB cable, with eclair, same with froyo stock kernel.
via WiFi tether and connecting a laptop to it, transfering files via FTP server on the android device
1.5-2mb/sec on froyo tethering
using the wifi tether app on eclair, around 600kb/s (fail? or maybe some cyanogen issues)
i recently upgraded to a CLASS6 transcend 16gb sdcard
yet the results are the same.
i tried a few SD-CARD testing apps, all results were around 2mb/s
is this some sort of hardware/software limitation?
did anyone get passed 2mb/s?
in theory my card should reach 6mb/sec write speeds.
so im hoping we can share our experiances.. and maybe come to some conclusion on whats going on, and finally put these issues to rest.
Click to expand...
Click to collapse
Thanks for the post, regardless of the patronizing of others... I've wondered the same thing as I've only gotten 2mb/sec going through the USB mount in android. I thought something was wrong with my computer so I've tried both pc and mac with the same speeds. I thought it was my memory card so I plugged it directly into a card reader and got 4x's the speed...
My main reason for wanting this to be fixed or acknowledged is for sync'ing music through programs like Salling Media Sync. It seems to me a wifi alternative would be faster even at 802.11g if it's related to the USB interface... let me know what you find I'm curious...

My wife's transfer speed was 3.6 on the stock SD card...
I have a class 6 and speed is under 2
I try to switch cards later and see if my class 6 goes faster on her N1

I too have never seen faster than 2mbish, even when i upgraded from stock to a class 2 8gb, and then to a class 6 16GB

Extremely Slow USB Transfer Speeds

Has anyone else been experiencing this? It takes an hour for my to transfer 1 GB of data. The same folder took only a few minutes to transfer between my Droid and X2.
Maybe I'm doing something wrong, or maybe it's a hardware problem?
16GB TF/Prime 1.4

Same problem here (Prime 1.4).
Does someone know how to have a faster usb connection (1h for 2Gb)
Thxxx
Stdu

I just did a quick transfer speed test by copying a 286MB file
Copying to the internal storage took 25 seconds (transfer rate : 11.4MBps)
Copying to a class 2 , 8GB microSD card took 45 seconds (transfer rate : 6.35MBps)
At those speeds a 1Gig should not take much longer than 1min 30sec to the internal memory and 2min 41sec to a Class 2 micro SD card (which is like the slowest speed you can expect from a micro SD card these days), unless you are moving thousands of tiny files, in which case it will take longer, but even then I doubt it should take 1hr.
P.S: 16GB TF running stock 3.1, connected to a Windows 7 32bit laptop

was your dock battery low when you tried to do this? could explain why it took a while.

Or don't use the dock at all? I never tried transferring anything while docked, didn't seem like it would've worked, but I guess it does work.

I still don't have my dock :-(
I tried to remove AVG and made a reset but still same problem.
I will try tomorrow to install the Prime 1.5 maybe this will help
Thx

Or you can transfer via wifi. Lightning fast =)

SwiftLegend said:
Has anyone else been experiencing this? It takes an hour for my to transfer 1 GB of data. The same folder took only a few minutes to transfer between my Droid and X2.
Maybe I'm doing something wrong, or maybe it's a hardware problem?
16GB TF/Prime 1.4
Click to expand...
Click to collapse
Perhaps, if the folder had video files, you selected the option to transcode the video.

makec3rt said:
Or you can transfer via wifi. Lightning fast =)
Click to expand...
Click to collapse
I only get 750KBps when copying files over wi-fi using ES File explorer; and I don't think you can expect anything above 1.0~2MBps when transferring from one wireless device to another wireless device on a wireless G network. That is still more than 10x slower than USB. What method are you using ??

Are you copying only one single big file or many smaller files..the speed normally drops significantly when copying huge amount of smaller files..
either way, one hour for 1Gb seems absurdly long....have you tried the stock rom?

Wifi Tether BUG - no Internet on newer kernels KG5 and higher on my Lenovo Laptop

I recently encountered a weird bug when SGSII would establish wireless "g" connection at 54mbps (instead of regular "n" at 65mbps) when doing 3G to wifi tether on my Lenovo Laptop.
My other 2 laptops work fine as expected, however after doing some troubleshooting, its concluded that the wifi router IP forms a "black hole" hope because of which the external communication to Internet dies after 4 or 5 hops (internal to the ISP). While doing a Trace route, the first hop (the IP of the phone's wireless router - 192.168.43.1) doesn't respond to the trace route ICMP requests and fails, however it does work for the next 4 hops before eventually dying after that.
This proves that wifi connectivity between the phone and laptop remains good despite it being downgraded as "g" network when my laptop is capable of "n" at upto 300mbps.
Never had this issue before KG5 or higher builds and it seems all the custom kernels and ROMs based on these newer kernels are affected.
As this issue is affecting only my Lenovo Laptop, not sure if it was ever reported.
Fortunately I am able to flash kernels based on earlier than KG5 build like Ninphetamine-2.0.x (till 2.0.5).
All Ninphetamine-2.1.x builds and kernels like "RAGEmod v1-T30" are also affected.
I am currently on "TOUCH X-treme KH3 2.0 'PERFORMANCE'" ROM and fortunately it seems to be working fine on Ninphetamine-2.0.5 as per my preliminary testing.
I have 2 more laptops which seems to be working fine otherwise on any latest kernels.
I would appreciate if someone could shed some light on the reason behind this bug as I am still investigating the cause and on a fix other than older kernel versions.
My primary usage of this phone is completely impacted by this bug and I hope Samsung would be able to resolve this bug before their next official release of 2.3.4 or higher version builds.

Hmm like the battery drain while charging bug on SGS1 I seems to be the only person shaken up by this bug which makes my SGS2 completely useless when using the latest kernels/ROMs.
My laptop has Intel WiFi Link 5100 AGN. Can someone having same/similar Wifi adapter report their experience?

Not surprised that Wifi tether is not used by most of us and hence such bugs go unnoticed and I paid a HUGE price of crashing my laptop which trying to fix the issue as I never thought it is the phone doing something weird which is preventing my laptop to get proper wifi connectivity.

Unfortunately no resolution till date. All the latest kernels and ROMs are affected. Not sure what is the issue as it defies logic why only one series of Wifi adapters are affected by this bug.

No resolution till date. All the recent kernels are still affected except the one on CM7 ROM.
Seems I need to wait for this update to become official in India before raising with Samsung here.

Ahhh.. Finally a respite after several MONTHS! The latest Siyah v2.5 kernel (http://forum.xda-developers.com/showthread.php?t=1263838) with new Wifi Driver has restored Internet access through Wireless Tether though the speed is still limited to g instead of regular n at 65mbps. But atleast I can now switch from the good old Ninphetamine-2.0.5 kernel to this latest kernel I always wanted to keep. Such a RELIEF!

No internet
Prankey said:
Ahhh.. Finally a respite after several MONTHS! The latest Siyah v2.5 kernel (http://forum.xda-developers.com/showthread.php?t=1263838) with new Wifi Driver has restored Internet access through Wireless Tether though the speed is still limited to g instead of regular n at 65mbps. But atleast I can now switch from the good old Ninphetamine-2.0.5 kernel to this latest kernel I always wanted to keep. Such a RELIEF!
Click to expand...
Click to collapse
I still get a no internet access notice on my laptop... Any tips?

Fix
leondb said:
I still get a no internet access notice on my laptop... Any tips?
Click to expand...
Click to collapse
Downloaded the newest beta from their website and installed. Then chose my device, and I am happy to report it is now working

leondb said:
Downloaded the newest beta from their website and installed. Then chose my device, and I am happy to report it is now working
Click to expand...
Click to collapse
I have faced the similar problem. But how my problem was solved is give below:
Update you windows OS using windows update
Then manually switch off the radios and switch on
That's all and now I can use wifi tethering as normal. First check with second option, if doesn't work, then try updating the PC OS too.

grgsiocl said:
I have faced the similar problem. But how my problem was solved is give below:
Update you windows OS using windows update
Then manually switch off the radios and switch on
That's all and now I can use wifi tethering as normal. First check with second option, if doesn't work, then try updating the PC OS too.
Click to expand...
Click to collapse
Latest Siyah 2.6.x kernels have AGAIN brought back the bug on my face!
None of the other options you suggested worked. I have spent hours trying to figure it out and this is what I get when I am affected:
Tracing route to 8.8.8.8 over a maximum of 30 hops
1 * * * Request timed out.
2 164 ms 123 ms 127 ms 218.248.84.5
3 228 ms 68 ms 81 ms 10.42.43.101
4 79 ms 79 ms 80 ms 10.42.43.28
5 * * * Request timed out.
Doesn't make ANY sense on how the first hop is getting blackholed when it otherwise respond to ping requests. I am able to reach till the last hop of ISP before dropping off.
Can any network gurus out here explain this phenomenon? I am unable to locate any logic behind it.
Hope Siyah team fixes it soon for me to enjoy a glimpse of Voodoo Sound on my SGS2.

I have a Lenovo T520 and am using the KK2 stock firmware/rom with no problem whatsoever in tethering...using it at this very moment

It actually seems to be affecting only Intel 5100 adapters like on my R400. I have 3 other laptops and a mobile phone which are working fine otherwise
As I said, it defies logic why only this adapter has compatibility issue when even older Intel 39xx based adapters work perfectly fine otherwise.

Fixed in Siyah 2.6.2 kernel again
Finally got it fixed on Siyah 2.6.2 kernel (to be released shortly) while working directly with the dev "gokhanmoral" in the past few days. All seems to be working now like it was in 2.5.x builds for me.
I sincerely thank gokhanmoral for taking the pain of looking at this isolated bug by Samsung which has fortunately been resolved on the latest drivers (to an extend, still no n mode access).

[Q] Read file only system

Hi,
since i have bought milestone 2 i have the similar problem... even now with the newest original rom
the downloading is interrupting almost every time, browser have never downloaded bigger file than approximate 20 mb and even opera mini doesnt work well with downloading
since i have got the fasterdownolader app it says me sometimes that the problem is system file read only (null)... or something like that, but i am downloading strictly on the sd card which is weird... so doesnt anybody know where could be the problem?
I have rooted rom with 1-click rooter
Sometimes it helps me to mount and umount sd card, but sometimes it doesnt.
The only app without downloading problems is dropbox
can i do something with the sd card to makes it work better? (for example)

I could be wrong but I believe it is more so to with with mobile internet in general being too unstable and some of the sources you download from don't work very well with it. This problem is most common with file sharing sites for myself, ones that don't support resuming downloads. Little bumps and resets in the connection (although you are not aware they happen) cause it to stall and then it simply wont resume. I've seen it happen on phones of friends etc, and even had it happen downloading over wireless hotspot on my laptop.
Some games with in app downloads will be very hard to download over my data connection and I only end up wasting nearly 1gb of my cap only to have 3 failed downloads halfway through, then it is seemless on wifi when I get home.

If you need a good download test side ... I always use the new release of ubuntu ... http://cdimage.ubuntu.com/releases/11.10/release/
And if you want to make sure it is not your mobile internet connection ... did you have the same problem with WLAN and downloads?
Just some ideas ... maybe it helps!

Thank you both for help
Finally I have got the answer, my main problem is SD card bigger than 8 GB
Since i have the 16 gb' card I have problems with reading and writing data on it
Mount and Unmount card is my daily routine, because even MortPlayer has a problem to play a music sometimes

Have you read this post?
http://forum.xda-developers.com/showthread.php?t=1025501

I have and it did solve my problem I forgot to note it here
but thank you very much, it is sometimes hard to be a muggle and to find a solution only by yourself
Even with newest gingerbread my new 16 gb's sd card freezes repeatedly...
but to replace the dll's did helped me (hopefully)
so here it goes
yuanjie.name/entry/milestone-2-mp3-crackling-playback-issue-solved
I changed files manually by the root explorer

S7 Edge (Verizon) - Difficulty transferring files on Mac

Hey all,
Didn't really know where to put a question like this, but since I got my S7 Edge as of two or so weeks ago, I've had an annoying time trying to transfer files over through Android File Manager, Smart Switch, and even a VM running Windows 7 on my Mac. My current OS on my Mac is Yosemite 10.10.5, my S7 Edge has the latest update installed, and yet I still have major difficulty transferring even more than one or two files at once before AFM locks up and claims my device is not connected/is locked, Smart Switch locking up completely until I disconnect and reconnect my S7 Edge, and the VM can't even recognize the phone being connected to it.
I have tried AFM with and without Smart Switch installed at the same time, and as for the VM, I've installed all the latest drivers.
I'm at a complete loss as to where to go next, as while this is so far the only problem I've had with this otherwise great phone, it's absurdly annoying when it comes time to transfer new music and shows.
One thing I have experienced in the past is that my previous Samsung devices never played nice with SanDisk memory cards, and the current MicroSD is a SanDisk 128 GB, but the transfer problem is also a big issue even when copying to the phone's onboard storage.
Thanks for any help or resources in advance!

jokerstyle00 said:
Hey all,
Didn't really know where to put a question like this, but since I got my S7 Edge as of two or so weeks ago, I've had an annoying time trying to transfer files over through Android File Manager, Smart Switch, and even a VM running Windows 7 on my Mac. My current OS on my Mac is Yosemite 10.10.5, my S7 Edge has the latest update installed, and yet I still have major difficulty transferring even more than one or two files at once before AFM locks up and claims my device is not connected/is locked, Smart Switch locking up completely until I disconnect and reconnect my S7 Edge, and the VM can't even recognize the phone being connected to it.
I have tried AFM with and without Smart Switch installed at the same time, and as for the VM, I've installed all the latest drivers.
I'm at a complete loss as to where to go next, as while this is so far the only problem I've had with this otherwise great phone, it's absurdly annoying when it comes time to transfer new music and shows.
One thing I have experienced in the past is that my previous Samsung devices never played nice with SanDisk memory cards, and the current MicroSD is a SanDisk 128 GB, but the transfer problem is also a big issue even when copying to the phone's onboard storage.
Thanks for any help or resources in advance!
Click to expand...
Click to collapse
Bump