Does anyone know why I would be getting extremely slow speeds when transferring files to my captivate via USB in mass storage mode? I'm only getting around 1.6MB/s. I don't remember it ever being this slow in the past. I am running the latest nightly of CM9 and my Desktop computer has Win 7 64-bit. USB debugging is enabled. To be honest, I'm not exactly sure when this issue began. I just noticed it when I tried to transfer some large video files to watch on a plane during a recent trip.
Transfers are slow to both the phone's internal SD card, and my add-in micro SD card. Strangely, when I pull the micro SD card out and put it in a USB adapter, transfer speeds are normal at around 15MB/s.
Any help would be immensely appreciated.
it's CM9 issue. Try my ROM for a change, or SlimICS or Docs or AOKP.
Related
Hello everyone, I have been using this forum for a while now, but havent really posted anything much as I have always found answers to any questions through searching the threads, however, I am unable to find a solution to a problem I have just recently encountered and was hoping someone out there may be able to shed some light on it.
I am using an unbranded handset running JPO which has been performing superbly until today, however, when I connect the phone via USB to my PC and select mass storage the computer does not seem to recognise the phone is plugged in. The strange thing is it worked perfectly before and the only changes I have made since was upgrading the micro SD card to a 16 gig one. I try unmounting the external card and even removing it completely to no avail. I have tried the phone on 3 PCs now, even my Linux PC does not recognise it.
I have rebooted the phone, tried connecting selecting Kies mode instead of mass storage, all to no avail. As soon as I connect the USB to the computer, the phone recognises the connection and asks what I want to do, I select mass storage, then I get the option to mount via the little green android, which turns orange stating it is connected, but the phone just does not show on the pc.
Any ideas would be most welcome, I don’t really want to have to format the internal memory but I think I may have to.
Many thanks in advance.
Additional:
I seem to remember on Eclair that I was able to unmount the internal sd card in the settings menu, however, with froyo, I only have the option to unmount the extrernal sd card. Would someone running JMO be good enough to check and see if they have the otion to unmount the internal sd?
Right, I seemed to have found the problem, so for anyone else who has a similar experience, it was the USB lead. SGS working as it should agian, phew..
Hi,
I am having problems with writing files SD card mounted as drive on HTC Velocity.
The phone often but randomly loses connection but only when copying large amounts of data. (mostly lots of small files)
Both SD card and Internal phone memory drives are lost.
I need to unplug/replug usb cable to restore drive.
When copying files, they randomly pause for a few seconds at different point and then continue then suddenly drive is lost. It appears as though HTC velocity has some other process running that interferes with copy process.
I have tried:
copying from different PC using different USB cables.
Tested SD card in SD card reader directly plugged into PC.
The SD card is Adata 32G UHS.
Any ideas on what more I can do to troubleshoot this?
Are there log files on phone that I can view?
Thanks
pencilhead said:
Hi,
I am having problems with writing files SD card mounted as drive on HTC Velocity.
The phone often but randomly loses connection but only when copying large amounts of data. (mostly lots of small files)
Both SD card and Internal phone memory drives are lost.
I need to unplug/replug usb cable to restore drive.
When copying files, they randomly pause for a few seconds at different point and then continue then suddenly drive is lost. It appears as though HTC velocity has some other process running that interferes with copy process.
I have tried:
copying from different PC using different USB cables.
Tested SD card in SD card reader directly plugged into PC.
The SD card is Adata 32G UHS.
Any ideas on what more I can do to troubleshoot this?
Are there log files on phone that I can view?
Thanks
Click to expand...
Click to collapse
Could be a problem with the micro usb port on the phone. Check for any dust or debri or any bent pins.
I don't believe it is physical - read is ok
Write to internal storage is ok as well.
I have checked pins and all looks ok.
Also swapped with 16G SD card that was working in HD2 - same issue.
Still having issues writing.
Is there a legacy USB mode similar to some earlier HTC models or other settings I can change?
Any other ideas please?
Thanks
Solved
Did a factory reset and seems to have resolved the issue.
Wipe all data from data/sd card.
Suspect there was something installed that was causing SD card connections to stall when writing.
If I will update if I figure out the cause
Copying something via USB Cable from the PC to my External Class 10 16gb card is excruciatingly slow, under 1Mb/s. Copying from the card is reaching 8Mb/s or more. I figure windows 7's Writecacheing is to blame, anyone know how i could disable this? Windows says that it can't due to some setting within the device...
On a side note i am using the latest CM9 from Arco...
olaf2k4 said:
Copying something via USB Cable from the PC to my External Class 10 16gb card is excruciatingly slow, under 1Mb/s. Copying from the card is reaching 8Mb/s or more. I figure windows 7's Writecacheing is to blame, anyone know how i could disable this? Windows says that it can't due to some setting within the device...
On a side note i am using the latest CM9 from Arco...
Click to expand...
Click to collapse
fixed with trying out a dozen or so usb cables.... 1 eventualy worked ....
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.
Hello,
When I want to copy data from my laptop to my MI5, it uses the MTP transfer protocol which is very slow and very often I cannot copy big files, the transfer is like frozen and fail !
On my old phone, I was using Mass storage, which was very fast.
Is there a way to go back to this Mass storage transfer ?
If not, what else can I do to speed up the file transfer ?
I am using windows 7 with USB 2 ports.
Thanks in advance
You cannot do anything about it. MTP was always slow.
You can try some sort of wifi file transfer maybe (like es file explorer etc...). That will be much faster.
You cannot use mass storage mode on internal storage, only possible on phones supporting micro SD cards in which mass storage mode will work on that micro SD card only. You can, however, use adb push/pull to upload/download files to/from your device with much better speed, especially if your device is connected via USB. Alternatively, wifi direct such as SuperBeam could also give great speed.
Thanks for your answer, I'm surprised that android force us to use such slow transfer protocol.
I'll try a wifi transfer solution.
torsinnet said:
Thanks for your answer, I'm surprised that android force us to use such slow transfer protocol.
I'll try a wifi transfer solution.
Click to expand...
Click to collapse
Here's a little technical reasoning behind it: https://www.reddit.com/r/linux/comments/3ff1rm/why_does_everything_use_mtp_these_days_mtp_sucks/