Hi,
does any of you know if the device can work in USB Mass Storage mode, i.e. can it be seen as an external drive from Windows/OSX/Linux without additional software? I own a MacBook Pro and HTC support told me that they are going to release soon a piece of software that works under OSX, but it would be wonderful to have access to the device storage without additional software..
Question already asked and answered here:
http://forum.xda-developers.com/showthread.php?t=1543735
They dont use USB Mass Storage they use Media Transfer Protocol to deal with USB connection. This change was introduced in Honeycomb and has continued into Ice Cream Sandwich.
You can still transfer files to and from the devices its just a diffrent way of doing it.
Forum user Gogol posed these questions:
- Why Google is using MTP instead of USB file transfer on Honeycomb?”
He received the following response from a Google developer:
“MTP is a big improvement over USB mass storage — for devices with lots of internal memory, a manufacturer no longer needs to come up with some hard partition between the USB mass storage and internal storage. Instead, they are all in one partition, with MTP providing access to the directory of media files that would normally be available through USB mass storage. This means there is no longer a need for apps on SD card for such devices, because what used to be the ‘internal SD card’ is in the same partition as where applications are stored. The storage on your device can be used for either applications or media, depending on what you want to put on it. You aren’t stuck with how much space the manufacturer decided to leave for the two areas.
Oh also this means that the media storage doesn’t need to be unmounted from Android when it is being access through the PC.“
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Source: http://glasskeys.com/2011/02/28/why-google-uses-mtp-instead-of-usb-file-transfer-on-android-3/
A main reason for using MTP rather than for example the USB mass-storage device class (MSC) is that the latter operates at the granularity of a mass storage device block (usually in practice, a FAT block), rather than at the logical file level. In other words, the USB mass storage class is designed to give a host computer undifferentiated access to bulk mass storage, such as compact flash, rather than to a file system, which might be safely shared with the target device (except for specific files which the host might be modifying/accessing). In practice, therefore, when a USB host computer has mounted an MSC partition, it assumes absolute control of the storage, which then may not be safely modified by the device without risk of data corruption until the host computer has severed the connection. Furthermore, because the host computer has full control over the connected storage device, there is a risk that the host computer may corrupt the file system, reformat it to a file system not supported by the USB device, or otherwise modify it in such a way that the USB device cannot completely understand it.
MTP and PTP specifically overcome this issue by making the unit of managed storage a local file rather than an entire (possibly very large) unit of mass storage at the block level. In this way, MTP works like a transactional file system - either the entire file is written/read or nothing. The storage media is not affected by failed transfers.
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Source: http://en.wikipedia.org/wiki/Media_Transfer_Protocol
No idea how this works with OSX though I'm a Windows guy
HTC-Gunge said:
No idea how this works with OSX though I'm a Windows guy
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Very nice reply, thank you very much!
I've found Android File Transfer Google utility for OSX: http://www.android.com/filetransfer/
Actually, the One X still uses mass storage mode. Plug it in and you get the same old prompt for charge only, disk drive etc. and it still shows up as a removable disk.
Yes, vanilla android handsets like the GN use MTP mode, but HTCs don't. They have a separate partition still.
Hmm that's interesting if its true, it means HTC have implemented it independently of the OS. Could even be a selling point as I know quite a few people didn't really like the change from USB Mass Storage to MTP.
Thanks for the info!
I'm one of those who hates MTP because it is not as reliable as USB Mass Storage. MTP just doesn't want to play nice with my Win7 machine on my Nexus so I'm really looking forward to the One X and getting proper USB Mass Storage on it.
As much as i prefer MSC over MTP (mainly because you can open music and video files directly from your mass storage device, but if you use MTP, they will have to copy the entire file over to your computer before it will play), my office blocks MSC devices, but strange enough, MTP devices are not blocked.
Therefore i am actually trying to find out of i can use MTP mode in my One X, since MTP is embedded into ICS, there might be a chance. This will enable me to access my One X in office..
anyone has any idea?
I have a slightly similar problem here:
How do i tell the HTC ONE phone, that i want use the mass-storage-mode in USB, and not the f******g HTC/Nero bloatware crap?
Before the update to Android 4.1.1 it was working fine as mass-storage.
CBrown0815 said:
I have a slightly similar problem here:
How do i tell the HTC ONE phone, that i want use the mass-storage-mode in USB, and not the f******g HTC/Nero bloatware crap?
Before the update to Android 4.1.1 it was working fine as mass-storage.
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HTC has changed mass-storage-mode to MTP in their latest update. I didn't find any way to use as mass storage so I installed CM10.1 (A8 supports mass storage mode).
parkentosh said:
HTC has changed mass-storage-mode to MTP in their latest update. I didn't find any way to use as mass storage so I installed CM10.1 (A8 supports mass storage mode).
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Thanks for this info. Unfortunally is this no option for me. I dont want to hack my phone, i want to use it.
CBrown0815 said:
Thanks for this info. Unfortunally is this no option for me. I dont want to hack my phone, i want to use it.
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Agreed - I have the same problem with my OneX on 4.1.1. 4.0.4 was great, 4.1.1 is a backward step in several ways. My Galaxy Nexus (bought to play with Ubuntu Touch!) did the same [email protected] until it updated itself to 4.2.2, and now works correctly - to my mind - as a mass storage device. I think Google realised the error and quietly fixed it. I can't find a document that details all the changes in 4.2.2 so not sure.
Is there any way we can have USB Mass storage ? Is it kernel related, if so i hope to have mass storage option available.
HTCfreak! said:
Is there any way we can have USB Mass storage ? Is it kernel related, if so i hope to have mass storage option available.
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Here's a link to an app for the Galaxy S3: http://forum.xda-developers.com/showthread.php?t=1711009
The built-in memory is not on partition meaning the memory is one big piece of block. Sorry no ums for phone memory but for sdcard there's a way around.
Ouzo said:
Here's a link to an app for the Galaxy S3: http://forum.xda-developers.com/showthread.php?t=1711009
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Will it work on the Note II??
shakeyfingers said:
The built-in memory is not on partition meaning the memory is one big piece of block. Sorry no ums for phone memory but for sdcard there's a way around.
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Sd card would do. please HELP!!
Anyone know of any custom roms that allow me to mount my phone as a mass storage device rather then mtp? I want to be able to connect my phone to my tablet and transfer files but need my phone to read as mass storage first.
mastermind1234321 said:
Anyone know of any custom roms that allow me to mount my phone as a mass storage device rather then mtp? I want to be able to connect my phone to my tablet and transfer files but need my phone to read as mass storage first.
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then you need to get another phone with a sdcard.
this topic has been beaten into the ground. use search next time.
The Galaxy Nexus does not have the Mass Storage function, it uses MTP instead.
Is there some way to set up usb mass storage instead MTP? I found only this but looks like it is device specific.
Beeperz said:
Is there some way to set up usb mass storage instead MTP? I found only this but looks like it is device specific.
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It works. after you run the script and you connect your phone to pc, your external sd card shows as removable disk on pc. So it works. :good:
Hello
Can someone help how to enable USB mass storage protocol for PC connection? microSD or in simple, to make DriveDroid working
Looked everywhere and everything I found about G7 and UMS have a last step "and select MTP? or PTP?"
Try this https://apkpure.com/es/usb-mass-storage-enabler/com.messestorage.proenble