[Q] Very slow USB transfer speed after Gingerbread update? - Galaxy Tab Q&A, Help & Troubleshooting

Hello!
I must ask it for you, as simply could not solve the problem for some weeks...
Im not sure in it, but from aprox. my Gingerbread update (first day when JPQ announced here at XDA... long time ago, just had no time for care about my problem...), the USB transfer speed dropped to aprox. 3-4M/s from 8-10M/s as write speed. With this rate I simply could not use my Tab for movie player, and dont know what is the problem.
I tried to change my Sam's USB driver from SuperOneClick boundle to the latest Kies version, but not helped (I thought maybe the SPOC driver is wrong, but not...) I tried it on 3 different computer, with driver in the latest Kies but on all I have this problem. What Im sure that before GB update my transfer speed was aprox more then 2 times faster, for write on the device... Im not sure that the problem is about GB update, but sure that before it was fast, and after become slow...
Could anybody help me? Maybe any tip what soft could make this problem, before I try a factory reset?...
Lot of thanks for it...
ebola

You are activating USB UMS over USB debugging deactivate USB debugging and activate Mass Storage in USB connectivity and you should get your speeds back.

DarkPal said:
You are activating USB UMS over USB debugging deactivate USB debugging and activate Mass Storage in USB connectivity and you should get your speeds back.
Click to expand...
Click to collapse
Thanks for the tip I was glad to hear it, but sadly it not helped on me. I used USB debugging on all my Android devices always and was never any speed problem, but (now) I tried to switch it off, and just use normal mass storage connection. My transfer speed in this case still 3-4M what is horrible slow...
Any other opinion, tip on my problem?

Related

[Q] i9000 Slow USB Connection

I've found that anytime I use an i9000 ROM I have a painfully slow USB connection relative to what I get with a Captivate ROM.
I tried a quick search but nothing came up for me. It's almost as if with i9000 it defaults to USB 1.0.
Wondering if I should try installing Kies drivers or soemthing.... I dunno... hoping somebody came up with a solution already...
Pretty important cause for those that flash often don't want to spend 8 hours transferring music back to the internal SD drive.
USB 1.0?? :S
I think a have a similar problem. Each time I connect my Galaxy S on my computer it shows the message that my device can perform faster...as if my Galaxy is running with USB 1.0.
I've used to different cables, different USB ports...and nothing happens.
Using the same USB cable, with another device, it do not shows the same message so I'm thinking it might be a problem with my Galaxy S or with the USB drivers that I’m using.
I had been using KIES but has the same problem...tried to install the driver aside KIES and the same result...I did a little research and it seems that I’m the only one with this problem...
I appreciate any help

[Q] Windows "USB Device Not Recognized" error

Does anyone else have this problem? When I connect my phone to either my laptop (winXP) or my desktop (win7x64) I periodically - constantly, really - get this message:
"One of the USB devices attached to this computer has malfunctioned, and Windows does not recognize it. For assistance in solving this problem, click this message."
When I click the message, it identifies my phone as a Generic USB Hub (4 ports) with the first child being a USB Mass Storage Device, the second being the problematic "Unknown Device" and the last two are "Unused Port"s.
This happens whether the phone is in charge-only or mass storage mode. I tried installing the autoplay drivers and that didn't help, so I uninstalled them. No hubs are involved - I've always plugged straight into the tower or laptop. I've also tried two different quality (first party Motorola) cables.
Mass storage mode works fine despite the error - I can access the Internal storage as well as the SD card. Is this a problem with my phone, or am I missing some software on the Windows side?
Ben
crt_ben said:
Does anyone else have this problem? When I connect my phone to either my laptop (winXP) or my desktop (win7x64) I periodically - constantly, really - get this message:
"One of the USB devices attached to this computer has malfunctioned, and Windows does not recognize it. For assistance in solving this problem, click this message."
When I click the message, it identifies my phone as a Generic USB Hub (4 ports) with the first child being a USB Mass Storage Device, the second being the problematic "Unknown Device" and the last two are "Unused Port"s.
This happens whether the phone is in charge-only or mass storage mode. I tried installing the autoplay drivers and that didn't help, so I uninstalled them. No hubs are involved - I've always plugged straight into the tower or laptop. I've also tried two different quality (first party Motorola) cables.
Mass storage mode works fine despite the error - I can access the Internal storage as well as the SD card. Is this a problem with my phone, or am I missing some software on the Windows side?
Ben
Click to expand...
Click to collapse
Have you tried installing the WHQL drivers for this device from here: http://www.lgforum.com/resources ?
majorpay said:
Have you tried installing the WHQL drivers for this device from here: http://www.lgforum.com/resources ?
Click to expand...
Click to collapse
Thanks for the suggestion major. I tried those drivers with no luck - the message still pops up frequently in both charge and mass storage modes.
crt_ben said:
Thanks for the suggestion major. I tried those drivers with no luck - the message still pops up frequently in both charge and mass storage modes.
Click to expand...
Click to collapse
Odd... I had issues with the original drivers, but once installed, I never had another prompt again.
edit: I had it one more time, but it found them and installed them
that's very interesting. i also use 2 machines--one with xp and one with win7. my usb connection worked flawlessly on both. fyi...my connection default is mass storage, and i've actually never tried the other options. i wonder why the difference? did you make any changes? are you rooted? i am not.
gr33nT said:
that's very interesting. i also use 2 machines--one with xp and one with win7. my usb connection worked flawlessly on both. fyi...my connection default is mass storage, and i've actually never tried the other options. i wonder why the difference? did you make any changes? are you rooted? i am not.
Click to expand...
Click to collapse
Hi gr33nT,
Thanks for responding. I'm 100% stock at the moment, not rooted or anything (though it will be soon ) Sometimes I use charge only if I have it connected to my laptop at work but I still want to listen to music from the SD card. I may see if I can get Verizon to swap out the phone, the message pops up all the time and it's getting annoying...
A quick follow-up on this one: I tried the stock LG cable on my win7 machine (I had been using moto cables). I installed BOTH the bootstrap drivers as well as the LG drivers from the web - still happening. I rooted with these drivers via S1C so I know the drivers are good. If nobody else has run into this, something is probably wonky with my phone, so I'm probably going to exchange it.
For mine, every time I connect, it asks me if I want to install bootstrap. Even though, they have already been installed cuz I am rooted.
I've had the same issue both as stock, and rooted and in every configuration with the phone and PC you can think of. I've downloaded the drivers and installed them from both the phone and web site all to no avail. This is really getting annoying.
I hope someone has a fix for this.
AndroidCraig said:
I've had the same issue both as stock, and rooted and in every configuration with the phone and PC you can think of. I've downloaded the drivers and installed them from both the phone and web site all to no avail. This is really getting annoying.
I hope someone has a fix for this.
Click to expand...
Click to collapse
Hmm...that is troubling. I'm still having the issue running the stock rom and rooted, now. When I get time I'm going to drop by the Verizon store and hopefully they'll replace the phone - I suggest you try the same, as I doubt it's the computers we're using. My win7 box and winXP work laptop could hardly be more different!
I doubt a replacement will fix anything, I experience the same thing as majorpay. Drivers worked for a while and then it started asking for it again. This also causes issues when using usb tether as its connecting and disconnecting. The issue is not present when used as a mass storage device.
bwhxeon said:
I doubt a replacement will fix anything, I experience the same thing as majorpay. Drivers worked for a while and then it started asking for it again. This also causes issues when using usb tether as its connecting and disconnecting. The issue is not present when used as a mass storage device.
Click to expand...
Click to collapse
Hi bwhxeon,
The issue (USB device not recognized - it sounds like you're referring to the autoplay driver installation) happens for me in mass storage mode also. I believe it has to be the phone as I've never had this problem on any of my PCs with my OG Droid or any other USB device. With this phone, I have the problem on all of my PCs.
I had the same problem. The error popups seemed random at first. I noticed if I enabled/disabled the WIFI on the device while it was connected, I could make the error popup.
I ended up getting a new replacement device when I also noticed the 4G Hotspot wasn't working either even after a factory restore. There was definitely a hardware issue with the phone.
USB Unknown Device
same issue here.. when using ADB though I have to set to Internet Connection then it goes away for a while until I want mass storage or just charge from USB again, then re-appears.
LG is not like most other phones as in usb debugging only works in internet connection mode where others go into it as soon as you plug it in.
Just kind of scanned this thread but have you tried a different USB cable? I was having a problem with mine only wanting to charge with the stock so I grabbed another cable and it has worked right ever since
Same issue, two different pcs, with two different cables. Bootstrap does not load anymore so I am using the drivers from the links, both sets of Lg verizon drivers
Sent from my VS910 4G using XDA App

[Q] how to enter mass storage mode with PC seamlessly?

Hey guys, been trying to figure out how to connect my phone to my pc without having to have kies installed on every computer I access using the usb cable. After struggling for a while I figured out the problem was because I had usb debugging mode activated, and once I unchecked it abracadabra! I was able to access my memory card just like any regular flash disk. The only problem am experiencing now is that, even though I have usb debugging unchecked, every time I connect the usb cable it automatically becomes checked again. meaning I have to go through the long process of going to settings> applications> development, to uncheck it again. Why is this happening?
Sent from my GT-S5570 using XDA App
kwoski said:
Hey guys, been trying to figure out how to connect my phone to my pc without having to have kies installed on every computer I access using the usb cable. After struggling for a while I figured out the problem was because I had usb debugging mode activated, and once I unchecked it abracadabra! I was able to access my memory card just like any regular flash disk. The only problem am experiencing now is that, even though I have usb debugging unchecked, every time I connect the usb cable it automatically becomes checked again. meaning I have to go through the long process of going to settings> applications> development, to uncheck it again. Why is this happening?
Sent from my GT-S5570 using XDA App
Click to expand...
Click to collapse
Install these samsung drivers and you will be able to do so.
http://hotfile.com/dl/109276666/f22355e/SAMSUNG_USB.rar.html
Dont quite get the problem.
When I plug in the USB cable to the phone and PC, the phone's task bar shows a small icon at the top. I pull down the task bar (or what ever it is called - it is pull down), touch the info about USB, and up comes a dialog box about enabling USB storage. I touch OK, and there is a warning about not being able to use apps on the USB. I touch OK again, and I am now connected to the PC.
First time or so, I was asked to turn off USB debugging, and never had to do it again.
Then maybe its an issue with my phone, originating from the factory, coz everytime I connect I am forced to go find the usb debugging option from way deep in settings coz nothing appears in the drop down task bar until I uncheck it. I am now getting paranoid considering the first time I bought it and took it home I found out that the standard micro sd card I was issued with did not work and had to go back to the store and get a replacement card. Maybe I should have opted for a different phone too. "cockroach theory"
Sent from my GT-S5570 using XDA App
Thanks for the drivers, but that was not the solution I was looking for exactly as that would mean I would have to install them on every computer I ever connect to, seeing as I prefer to double up my phone as a flash disk too coz its harder to loose and no pal would ever ask to use your phone to go borrow something (thats how flashdisks get lost) and I can also charge the phone when am copying new movies and songs, catch my drift.
Sent from my GT-S5570 using XDA App
kwoski said:
Thanks for the drivers, but that was not the solution I was looking for exactly as that would mean I would have to install them on every computer I ever connect to, seeing as I prefer to double up my phone as a flash disk too coz its harder to loose and no pal would ever ask to use your phone to go borrow something (thats how flashdisks get lost) and I can also charge the phone when am copying new movies and songs, catch my drift.
Sent from my GT-S5570 using XDA App
Click to expand...
Click to collapse
If i recall correctly this also happened to me when i bought the phone. But after i installed samsung kies or the drivers it got ok. But as you say, if you use many computers its not pratical. I mainly use this one so no problem for me.
kwoski said:
Then maybe its an issue with my phone, originating from the factory, coz everytime I connect I am forced to go find the usb debugging option from way deep in settings coz nothing appears in the drop down task bar until I uncheck it. I am now getting paranoid considering the first time I bought it and took it home I found out that the standard micro sd card I was issued with did not work and had to go back to the store and get a replacement card. Maybe I should have opted for a different phone too. "cockroach theory"
Sent from my GT-S5570 using XDA App
Click to expand...
Click to collapse
When you use your phone as a flash drive, you can expect to use it as a normal flash drive - simply plug it in, and the PC recognises a USB mass storage device. There ought to be no need for any drivers. Even on windows PCs.
But, you will have to unmount the SD card from within the phone.
If you need to disable USB debugging mode each time, try disabling USB debugging without the USB cables plugged in The phone ought to remember it. The menu option is, IIRC, settings > USB and media.
Things are slightly different in 2.2.2 froyo, 2.4.5, 2.4.6 and the current 7.1 CM custom kernel I am using. So, I cannot exactly remember the menu option. But, it is not a driver issue.
BTW, I installed the samsung USB drivers for Kies and ODIN from the phone on a newly installed OS, and was on stock 2.2.2 Froyo then so I am very sure that this is not a USB drivers issue.
My phone just updated to 2.3.6 and every time I plug the USB cable in, debugging mode automatically activates, even though I have unchecked it without USB cable plugged or after it was plugged. When I try to enter mass storage mode I get prompted that some apps might not work while in this mode. I tap OK and the phone tries to connect but after a while reverts back to debugging. That would not be a problem if I was at my home computer as running keys unlock the mass storage mode adn I can use Total commander to load what I want, but when at work, I do not have admin right so I can not install driver. Until yesterday I was on Froyo 2.2.1 and mass storage was no issue...
lockdalf said:
My phone just updated to 2.3.6 and every time I plug the USB cable in, debugging mode automatically activates, even though I have unchecked it without USB cable plugged or after it was plugged. When I try to enter mass storage mode I get prompted that some apps might not work while in this mode. I tap OK and the phone tries to connect but after a while reverts back to debugging. That would not be a problem if I was at my home computer as running keys unlock the mass storage mode adn I can use Total commander to load what I want, but when at work, I do not have admin right so I can not install driver. Until yesterday I was on Froyo 2.2.1 and mass storage was no issue...
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Click to collapse
I knew this is an old post, but i had to reply this.
I had the same situation. i also lost the USB Storage function after upgraded to 2.3.6 DXKT5.
so , now i unable to use TV or SetTopBox to play the files inside the S5830. too sad.
I wish i could revert back to FROYO v2.2.1 , yet , i unable to find a valid/working download link for Froyo 2.2.1 DXKC1 , so i had to stick with it now or later.
------
hardware: Samsung Galaxy Ace GT-S5830 @2011.02
original: Froyo v2.2.1 ( DXKC1 ,MM1)
odin to: GingerBread v2.3.6 (DXKT5,XSO)

[Q] (Very) Slow File Transfer Over USB Cable

I'm using Total Commander 8.01 with ADB v6.9 plugin (latest as of now) and file transfers over the USB cable peaks at 1-1.5 MB/s. MTP mode over WinExplorer doesn't have transfer speeds displayed, but I'm perceiving them as about the same.
It's the same whether to/from phone or internal/external SD. Had both storages benchmarked within the phone (SD Tools on Market) and they averaged far above said speed, especially external SD which is UHS1. The USB ports on my computer are good and proper, besides the phone does the same on other machines.
Before someone asks, I have no convenience of wifi signal everywhere. Secondly, the phone is often charged over USB and I want to use the already present connection to transfer files.
Running Stock V20B.
Am I really the only one with this problem?
Starting the same 10 battery & boot probs threads a day is fine, but posting one reply here isn't. Come on, someone!
Maybe using another cable would solve this...?
I only copied files over USB once but it was indeed terribly slow. I don't recall exactly, but I think it was about 600kb/s.
I am not on stock and using Ubuntu. So the problem is not just your setup...
Edit: Ok, so I copied a rom to my device today, it went fast. 100mb in a few seconds...
Thank you for replying.
I tried another 10cm cable (minimal loss of signal), another computer, USB ports directly on motherboard (got to 2.5 MB/s on either storage) and no changes.
Maybe there is some setting in the phone I should turn on or off that I don't know about? I don't know what else to try, short of flashing a custom rom (no guarranties that would work at all).
I have USB debugging enabled today, don't know if i had this enabled before. You could try if this makes a difference?
Unfortunately, ADB plugin for TC requires debbuging enabled to function. I doubt it'll make a difference, but I'll try it with WExplorer in MTP mode.
Well, USB debbuging made no difference, but MTP mode reached 8-9 MB (better, but still way below what it should be), while ADB+TC says it creeps at ~3 MB.
Same file copied via MTP needs 3.5 mins and ADB plugin requires for stumping 16 minutes! And that's on extSD, not internal. So, ok, the TC plugin is a decomposing cadaver, fine, but that doesn't account for MTP's speed.

USB data transfer not working.

So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money ???
turns out my phone also have the slow Emmc issue ?....read speeds are okay but write speeds are very slow... specially Random write (~10mBps).
I read many people have faced this issues. All those Posts are old, has anyone found a solution.
gareebuser619 said:
So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money ??
Click to expand...
Click to collapse
gareebuser619 said:
So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money
turns out my phone also have the slow Emmc issue ....read speeds are okay but write speeds are very slow... specially Random write (~10mBps).
I read many people have faced this issues. All those Posts are old, has anyone found a solution.
Click to expand...
Click to collapse
Try to reset the phone and then check the same and you can always use adb over wifi when phone is turned on incase u need but for fastboot u need cabel anyways try installing the correct adb and fastboot drivers check and delete old drivers tis may fix it or take to local shop
KevMetal said:
gareebuser619 said:
So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money ??
Click to expand...
Click to collapse
I had the exact same issue only charged and no data transfer or otg I'm computer it shows device description error but headphones worked fine I went to a mi service center and changed the usb port for rs.700 now it works like charm must be a water damaged sub board don't get cheap replacement from Amazon coz they only charge the phone and they miss out fast charging ic
Click to expand...
Click to collapse
I am also facing same issue. Can't transfer data using USB Cable

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