Develop Bugs

[Q] Slow USB Transfer speeds

Hopefully it's just me but I am getting terrible USB transfer speeds. Like less than 1 MByte per second. It's going to take me all day to transfer over my Pics and Movies.. I think it would be faster using FTP over Wi-Fi. Anyone else seeing this?
I am using the same computer and connection that I use with my Droid 3 and the Droid 3's transfer speed is much much faster.

Mine transfers hella slow too. I think it has something to so with it not being actually mounted.
Sent from my Galaxy Nexus using xda premium

despich said:
Hopefully it's just me but I am getting terrible USB transfer speeds. Like less than 1 MByte per second. It's going to take me all day to transfer over my Pics and Movies.. I think it would be faster using FTP over Wi-Fi. Anyone else seeing this?
I am using the same computer and connection that I use with my Droid 3 and the Droid 3's transfer speed is much much faster.
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I disconnected and reconnected using a different port on the same computer and now it's more "normal" speeds. Not exactly fast but about the same speed as the Droid 3. Not sure if it was the port or just the disconnect and reconnect that did it.

that is normal for MTP transfer
if you want fast transfer speed, flash CWR and boot into recovery to mount USB

Copying files takes long time

Trying to figure out why when I copy one large 1.5 GB file it takes about 40 minutes, while if I copy it to my older fascinate sdcard takes about 6 minutes.
Is this normal for nexus?
I guess I can try from my work machine tomorrow, just to see if it machine.

Happened to me as well when i was first setting up my files and things .. trying to move all pics and stuff from my OG Droid SD card was taking FOREVER.
don't really know why. ended up sending everything to dropbox, then syncing to the Nexus...

Mainly because it's using MTP and not USB Mass Storage. But it should definitely not take 40 minutes to put a 1.5GB file onto your phone.

I had a terrible time trying to get my computer to recognize the Nexus as being connected at USB 2.0 speeds. All of my USB ports are 2.0 and I was using the stock Samsung cable too. It was just a matter of plugging and unplugging until it liked the connection. As the OP said USB mass storage is way faster. I am not happy with MTP personally.
Sent from my Verizon Galaxy Nexus using xda premium

ok im researching this i transfered about 4 gb it told me 19 hrs then went to 9 i went to sleep and woke up wasnt finished restarted phone and comp the it took about hr half 2 hrs smh needs sd or mass usb storage

[Q] Faster MTP transfer solution?

Coming from USB mass storage/sdcard on a HTC HD2.. Sorry to say but MTP has got to be the worst feature on galaxy nexus. Slow speed and Unreliable
Using windows explorer MTP transfer is next to impossible. Always freezes for me. Nothing else freezes in my system except when trying to use MTP
Using Wifi Apps such as airdroid to transfer has proven to be unreliable and slow when transfering big files or folders. It always times out.
Using windows program call QtADB_0.8.1_windows over usb to transfer my files now. It is actually quite reliable. Unfortunately, speed is still slow. I would estimate at about 600kb/sec.
Now the biggest question is does anyone got a better solution out there for transferring files with MTP?

Use adb. I've found it to be the fastest way. :good:

+1 on adb pull/adb push

I've never had any issues with mtp in windows. It seems equally as fast as any USB 2.0 connection and reliable. Provided your PC isn't a pile of **** and you have the correct drivers installed ( mind you I let windows update do all the work, no manual installation at all) it should work like a breeze.
If you're getting slow transfer speeds the culprit could be that your phone storage is low. When flash memory gets low on space it fragments the data all over thus reducing speed. Another culprit could be that your using a USB 1.0 port on your PC.
Sent from my Galaxy Nexus using xda app-developers app

Use usb otg cable + thumb drive, its the best for me...
Sent from my Galaxy Nexus using Tapatalk 2

mtp on multiple devices has always been slow for me
and i play crysis 2/bf3 maxed on tv.
it's my low-end pc ($700)
but really, acer iconia a500, some sabsa pmp, gnex, razr xt910, and some other phone all transfer slow regardless of usb port (my corsair flash drive gets up to 100mbps transferring files in the same port).
but i have had mtp work fast a few times, 99% of the time it is laggy and it hates/doesn't allow multiple operations in the drive (one copy operation at a time, can't open two windows in the drive for ease of moving files, unreliability when internally moving files).
mtp is ridiculous it is nice that the device can access the sd card at the same time (but i could just use multi mount sd).
Sent from my Galaxy Nexus

Thanks for the reply guys. I was hoping for a more graphical GUI interface solution. I guess i just have to learn how to usb ADB commands..

akira02rex said:
If you're getting slow transfer speeds the culprit could be that your phone storage is low. When flash memory gets low on space it fragments the data all over thus reducing speed. Another culprit could be that your using a USB 1.0 port on your PC.
Sent from my Galaxy Nexus using xda app-developers app
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Fragmentation of data on solid state memory does NOT slow down either writes or reads. No heads to reposition, every location on a ssd is instantly available no matter where your last access was from. In fact, with sd memory it is a mistake to defragment because it just burns through the limited number of write cycles the device has, pointlessly.
That said, using a usb 1.0 or 1.1 port is sure going to slow transfers a lot, compared to usb 2.0 speeds. Usb 3 is even faster, of course, but I don't know if any android phones support usb 3 yet.
Remember that usb rated speeds are only achievable on very small transfers, too, and for longer files can get really slow, unlike firewire.
Sent from my Galaxy Nexus using xda app-developers app

Can you push/pull entire directories or file groups with adb?
Sent from my Galaxy Nexus using xda premium

?
really?

glennj99 said:
Remember that usb rated speeds are only achievable on very small transfers, too, and for longer files can get really slow, unlike firewire.
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i beg to differ with this statement. On any transfer i've see tested write speeds are significantly slower for multiple small file transfer vs single large file transfer. the overhead from having to read/write the FAT information (file allocation table) for multiple small files slows even my USB3 hard drive to a crawl vs a 700 meg ISO that transfers at 180MB/s

cnlson said:
i beg to differ with this statement. On any transfer i've see tested write speeds are significantly slower for multiple small file transfer vs single large file transfer. the overhead from having to read/write the FAT information (file allocation table) for multiple small files slows even my USB3 hard drive to a crawl vs a 700 meg ISO that transfers at 180MB/s
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Yes, if you are including file system overhead writes of many small files is slow on any type of connection compared to a single large file. The actual transfer speed of USB (at least prior to 3.0 anyway) is limited in the case of a single large transfer to WAY below the spec speed of USB 2.0 though, falling off dramatically from the initial speed after the first k or two have been transferred and spiking up and down from there until the transfer completes. This is due to the way Intel designed USB, to compete with Apple's (ugh...) Firewire (which has a steady full speed for any sized single file transfer).
The practical result is that for large files FireWire can move data over the link at speeds approaching its rated 400mbps while USB 2 at 480 nominally rated takes a lot longer to transfer the same file. So one should never expect to achieve USB 2's rated transfer speed for large files. For single small files you can get closer...
Sent from my Galaxy Nexus using xda app-developers app

Why would you buy the 32gb model when you can use otg usb?

Thank you
Sent from my Nexus 4 using xda app-developers app

Because I had the cash to

because I like to carry my tablet alone, not a wire and a usb stick or harddrive so its a ease of convenience factor.

Because I don't want to carry a bunch of extra peripherals and have junk dangling from my tablet.

Because of course no one Will like to have wire hanging out your device and also internal flash is way faster than usb also pendrive sucks huge amount of battery every time you use it
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Basically what every one else said the price difference is so low why not have the extra onboard storage. I really don't carrying around extra stuff as it is. Its sorta why I refuse to buy a laptop with a DVD drive, because I know I'd end up buying an external one because all my media is not in the cloud, especially the things I do for work.

convenience. Do you really want to have a tail hanging out of the bottom of the device everytime you want to watch a movie?

I think a better question would be, why would you want to carry around extra crap?

Because it'd rather not have to rely on having a usb stick/hard drive plugged in every time I want to watch something
Sent from my GT-I9500 using Tapatalk 4 Beta

because it was what, 40 dollars more? what a silly question. I have a 16 gig s4 with a 64 gig card. I need space. my old nexus was 32. my HTC dna is only 16 with no card and at every given moment I only have like 700mb free. it's awful.
Sent from my Nexus 7 using Tapatalk 4 Beta

I wanted the 32gb, but it was out of stock.
Now knowing that usb otg works i have no regrets though - i think it was a better choice actually!
I'm importing this thing so an extra $40 = more like $60, and i never had any space issues with my old 16gb n7.
Also backed the microsd kickstarter, which is very compact and can store my 64gb sandisk with media on it.
It takes like half a min to copy over a movie to internal and you're done.
Also being able to access and manage files without the need to plug my n7 to a PC (when i want to add a movie) is so much easier, just plug in the portable hard drive and play...
There are some really portable otg cables out there, mine is smaller than an average usb drive.
Unused space = wasted space, so no regrets...

I got the 16GB. My 32GB original N7 was never filled past halfway. All my music is on my phone and when I watch something on it, it's usually via netflix. If I really need that space for some reason (long plane ride or something) I can deal with the OTG cable sticking out.

detonation said:
I got the 16GB. My 32GB original N7 was never filled past halfway. All my music is on my phone and when I watch something on it, it's usually via netflix. If I really need that space for some reason (long plane ride or something) I can deal with the OTG cable sticking out.
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Click to collapse
Same thing here
Sent from my Nexus 4 using Tapatalk 2

Nandroid backups will add up, especially since this thing has a 1080p screen. Idk how I'd feel about restoring a backup through USB otg.

because im rich?
Sent from my Nexus 7 using xda premium

lyrad12 said:
because im rich?
Sent from my Nexus 7 using xda premium
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Personally, since it has no sd card, I played it safe. My music alone would never fill it up, though i have some ~ 3,900 songs.
When I load up game of thrones, it takes some space. I'd use my otg for long trips or if i won't have access for a while.
Also, you can't use otg without an app that will mount it, currently, until its enabled in custom roms.

Indeed, loading up movies & videos for viewing while travelling, it eats up space fast. For an extra $40 seems silly not to opt for the 32gb if one had the availability and choice.
Sent from my HTC One Sinless ver 2.7 Google Edition rom

Because USB OTG requires root in order to mount the flash drive and I'd rather be root free.
Sent from my Nexus 7 using Tapatalk HD

Moral of the thread
Different strokes for different folks
Sent from my Nexus 7 using Tapatalk 4 Beta

I am actually a big fan of secure cloud. Netflix and YouTube, Hulu, and other less known sites. I have many devices but I don't think I've gone beyond 8 on any. Just not a prob for me. But I can see where it would be for some. I have like more books on nook than I can readily count, music, games and when it comes to backup's I push to PC, usually wirelessly lol. I find it safer to store on PC plus no room issues. This is a play with device to hold me till the big boys start popping out and I'm frugal. That said I'm coming to like her much more than I thought I would. When this tab gets a few more mods it will really be a beauty.
Like the man said, different strokes.

Question Transfer speed

Hi everybody. I have a S21FE Snapdragon (G990B) version on BVB3 version so I plan to update to CVC6 and decrypt data for some testing on Afaneh's recovery.
My issue is that data file transfer is slow as hell, even if I use USB3, even with 3 differents cables and ports. Of course I don't want to lose it so I have to wait but to be clear
I've waited for 40 minutes and only approx 4-5Gb of data were copied for 65Gb in total.
Anyone else had this slow data transfer issue ?

I noticed this with a lot of small files. If you zip them, the same amount of data is transfered faster.

@DarkStar9173 Thanks for your reply. It seems to be the same for me. So I used FTP wich transfer big files slower but small files faster. I'm tired of these cables and their slow transfer speed...

I also noticed the S21 FE is extremly slow with transferring files to the pc. I compared it to the S21 Ultra and that one was very fast using the exact same cable. I have no idea why.