MTP only USB access for encrypted SD card - Xperia Z1 Compact Q&A, Help & Troubleshooting

I recently decided to encrypt the phone and SD card "just in case". It seems there is no loss of functionality and the Z1 Compact is sufficiently fast; I did not see any slowdown or any other adverse effects after encrypting. Until today.
Today I decided to move things around on the SD card and connected to the PC through the USB cable. It connected in MTP mode. Annoyed, I went to the menu to change the settings again into the Mass Transfer. And the menu is gone. There is no more a menu to select the USB transfer mode.
Pop out the encrypted card, put in another, the menu reappears. Slot in the encrypted one - the menu disappears. So it seems that the only way to access an encrypted SD card is through the MTP. Nuts.
Through searching I could not find any information whatsoever on the subject. Any tricks to help?..

I think that's perfectly fine. The reason why you're encrypting the sdcard is to protect it's content from unauthorized use. Which means it disables it'se from mounting on other devices. And USB Mass Storage mounts the sdcard directly to the PC on which the phone acts as an adapter only hence you can't mount it. The sole solution to your problem is remove the encryption.

Riyal said:
I think that's perfectly fine. The reason why you're encrypting the sdcard is to protect it's content from unauthorized use. Which means it disables it'se from mounting on other devices. And USB Mass Storage mounts the sdcard directly to the PC on which the phone acts as an adapter only hence you can't mount it. The sole solution to your problem is remove the encryption.
Click to expand...
Click to collapse
Exactly you are right and I dont understand why the OP encrypted it.. If he really cares about the encryption then he should know that its what encryption means...

He just didn't know about the interior workings of MPT and MSC and what that means for encryption. You don't really have to know that as a normal user, you just want to click a button and know that your data is secure. And since it works with MPT mode, it's not obvious that it won't work in MSC mode.

Related

[Q] phone does not connect to PC via USB

[SOLVED] : using dropbox now for file transfer...
After I installed the latest build of stock XDAndriod on my Rhodium, it does not connect to my PC (win-XP) using USB port. I have tried multiple times to reset my phone and re-flash my winmo with no help.
My computer does not detect a USB device at all when I connect my phone when in Android. When I plug in my phone, nothing happens. But my phone does begin charging from the USB port and does detect that is plugged in to a power source.
How do I get my PC to recognize my phone?
Phone details:
H/w : standard AT&T tilt2
Winmo : JackOS build Aug/19
XDAndroid version - [MJG]Rhod.2.2Froyo.083010.rar
Thanks,
Dhanvi
PS: I did check the thread here - http://forum.xda-developers.com/showthread.php?t=641444&highlight=USB+problems and that hasn't solved my problem.
If you read the port status, USB data connections are not currently supported. Only charging is supported via USB.
Thanks for that pience of info, but I do not see anything saying USB on the project development page. Is there some other page that I should be looking at too?
If that is indeed the case, then how do I transfer stuff over from my PC to my SD card when in andriod ? Is there any other method?
Thanks.
kapiladhanvi said:
Thanks for that pience of info, but I do not see anything saying USB on the project development page. Is there some other page that I should be looking at too?
If that is indeed the case, then how do I transfer stuff over from my PC to my SD card when in andriod ? Is there any other method?
Thanks.
Click to expand...
Click to collapse
Use dropbox. www.dropbox.com for you pc and download dropbox in the market.
Thanks for the tip!
Dhanvi
Great Idea but waiting for more help
Hey Fist post here about the xAndroid. I have to say this rocks!! First time I got it up I said to myself this is how a phone is supposed to run.
To the questions do any of you know if this USB connection is going to be fixed anytime soon sine I would really like to see if you can connect Google App Inventor to the phone while on this great mod.
Thanks
Lennyz1988 said:
Use dropbox. www.dropbox.com for you pc and download dropbox in the market.
Click to expand...
Click to collapse
By far the simplest way to get it done.
I went for installing ADB and droid explorer on my pc. It works, but I have much less hair now.
with the current way xdandroid is built, I can't see it being probable that usb mode will ever work (could be wrong, so feel free to correct me).
i.e. currently we have a FAT partition on the SD card and we loopback mount files on it to act as the android system and data file systems, and the fat can then act as a normal SD card.
because of this, it can't expose the FAT partition to anyone outside of the OS instance (i.e. 2 OS's will be writing to the FAT table (redundant I know) independently and can clobber each other.
On the other hand, I think the way the cyanogenmod port works, by partitioning the SD card into multiple partitions to hold the different sets of data (though not sure it takes it all the way), is an approach that could be made to work for usb access, if separate partitions would be made for the system and data file systems on the SD card and a third partition just used for the FAT FS. This way, android can unmount the FAT partition only (nothing else depending on it) and let it be accessed by whatever machine the device is attached to over usb.
there's a reason its not done this way currently as its much harder to manage and continuously update.
just my 2 cents.
Hm, does this also mean, you can not use tools like MyPhoneExplorer (Outlloksync via UBS with Android phones) due to absence of data over USB? Seems like a decent app, but it does not see my TYTN over USB, says no conenction. I also note, Windows XP is trying to install an 'Android Phone' driver when I connect the TYTN to the Laptop. Is this all somehow related?
Oddly, my phone decides to turn on USB after it's been sitting plugged in for a time, which exceeds an hour. It's like it checks for USB connectivity at some long interval.
thetoady said:
with the current way xdandroid is built, I can't see it being probable that usb mode will ever work (could be wrong, so feel free to correct me).
i.e. currently we have a FAT partition on the SD card and we loopback mount files on it to act as the android system and data file systems, and the fat can then act as a normal SD card.
because of this, it can't expose the FAT partition to anyone outside of the OS instance (i.e. 2 OS's will be writing to the FAT table (redundant I know) independently and can clobber each other..
Click to expand...
Click to collapse
With Android on my wife's HD2 (booting from Windows via Haret.exe) USB mass storage mode works fine, so it's definitely doable.
toadlife said:
With Android on my wife's HD2 (booting from Windows via Haret.exe) USB mass storage mode works fine, so it's definitely doable.
Click to expand...
Click to collapse
No clue how - when you're in WinMo, what happens when you plug in your phone and select to use it as a disk drive? It unmounts the SD in WinMo and mounts it on your PC. Same thing would happen in Android, but when the card can't be unmounted - as Android is running off of it.
arrrghhh said:
No clue how - when you're in WinMo, what happens when you plug in your phone and select to use it as a disk drive? It unmounts the SD in WinMo and mounts it on your PC. Same thing would happen in Android, but when the card can't be unmounted - as Android is running off of it.
Click to expand...
Click to collapse
Well I have no idea how it works. I just know that it works.
toadlife said:
Well I have no idea how it works. I just know that it works.
Click to expand...
Click to collapse
I've been told it's flaky on the HD2 and not recommended for use anyways. Still not sure how it works tho.
We won't have true SD card access (USB mass storage) until Android is flashed onto our devices. Until then, true USB mass storage will NOT work.
In the meantime, there's ADB. Perhaps the HD2 guys hacked something up based on ADB, who knows.

Bitlocker corrupted Internal SD storage

I plugged my phone into my new Win 7 laptop at work. I needed to copy some files. It said I had to encrypt the drive to be able to copy files. I figured I'd have to decrypt the drive after I copied the files for things to work properly again.
During encryption, Bitlocker froze. Then my phone froze. Long story short, I can't access the internal sd card. USB mass storage won't turn on when I plug the phone into my laptop. I'm fine with losing all data that was on the card...I just want it to work again. I can't save anything to the internal sd card. It's as if it's not there. Maybe it just needs mounted?
Any help is much appreciated.
I think I got it figured out.
I flashed back to EL26 from AOKP and the encryption picked up where it left off. So hopefully I'll be able to decrypt it and still have all my stuff.
bitlocker destroyed my Galaxy Note...
Did this work? I've had EXACTLY the same problem!! Hassle is I don't have admin rights on my computer at work so it's going to be awkward getting someone to decrypt the drive... :-/

[Q] is there a way yet to enable UMS mode instead of MTP?

i hate mtp. won't work at all on my win8 PC (worked on win7) and can't enable UMS and no app i've tried works.
so far i'm turning the phone off, taking out the mSD card, inserting it into an SD adapter, inserting that into a USB adapter and then connecting to my PC. that's still faster and easier than using MTP or any airdroid equivalent.
why the hell do google/samsung like to mess with things that aren't broken!?
SGS3 Easy UMS
http://forum.xda-developers.com/showthread.php?t=1711009
This mounts your external SD card in UMS mode. It has been tested and confirmed working on note II. I use it myself. It requires root. The internal storage however is out of the question.
tried that but it didn't work. couldn't mount the ext sd as it was in use. forced closed everything (literally) and it mounted - but didn't show up in my PC

[Q] Security Lock Bypass?

I'd like to start by saying I checked but couldn't find any similar threads to this issue I've been facing with my S3. I believe it to be a global issue since samsung did away with needing drivers to mount internal and external storage on their phones to just having the device showing up as a media device to simplify the user experience.
My question is that short of encrypting the phone and SD card (for those of us who don't have any incriminating or secret information on our phones but want at least a screen-lock's level of security), is there a way to prevent your phone from automatically attaching to any computer it's plugged into via internal storage and SD? Otherwise, I don't see a point in using a screen lock. Anyone can steal this phone, plug it into a computer, and have full access to all of your files.
Again please redirect this post if a thread currently exists. Such a security hole makes me nervous, granted I am rooted and use avast's defense module to safeguard a lost phone predicament. Thank you everyone!
With PIN lock, I can't access the contents of the int/ex SD card until I unlock the phone once.
Check your phone settings again. When my phone is locked (pin/face/etc), if I were to plug it into a PC, it detects the device but does NOT allow access to internal memory or SD card.
Yeah, when I connect via usb to my computer i have to drag the notification bar down and click on mount usb. When the screen is licked obviously you can't do that until you unlock it.
Sent from Flip's S3

[Q] Enable USB Charging Only

Hello Guys and girls,
Is there an option on the Huawei Ascend Mate wich allows you to charge the phone with the USB cable.
If I put the cable in my computer it always goes to my SD-card, HiSuite, Camera (PTP) or Media (MTP).
But I don't want to connect to the computer, but I want it charging.
It's still charging if it's connected, but all my music is on my SD card, wich isn't mounted at that time.
Da Phoenix said:
Hello Guys and girls,
Is there an option on the Huawei Ascend Mate wich allows you to charge the phone with the USB cable.
If I put the cable in my computer it always goes to my SD-card, HiSuite, Camera (PTP) or Media (MTP).
But I don't want to connect to the computer, but I want it charging.
It's still charging if it's connected, but all my music is on my SD card, wich isn't mounted at that time.
Click to expand...
Click to collapse
Put it in HiSuite mode...ur sdcard will be accessible by the device and computer simultaneously (USB on the go feature)
svvv said:
Put it in HiSuite mode...ur sdcard will be accessible by the device and computer simultaneously (USB on the go feature)
Click to expand...
Click to collapse
But there isn't a only charging function?
My Samsung had it.
No matter what USB mode, it still charges
hamdimo said:
No matter what USB mode, it still charges
Click to expand...
Click to collapse
Yes I know it still charges.
But I don't want it to connect to my computer.
Like I said, my Samsung phone had that function.
Da Phoenix said:
Yes I know it still charges.
But I don't want it to connect to my computer.
Like I said, my Samsung phone had that function.
Click to expand...
Click to collapse
Idk whats your problem if i put my USB cable in my HAM
it shows me this so i really dont know whats your problem.
Dont choose any and the SDcard will not be unmount.
And this isn't a Samdroung it's Huawei so don't compare
greez Gadlion
Gadlion^1 said:
Idk whats your problem if i put my USB cable in my HAM
it shows me this so i really dont know whats your problem.
Dont choose any and the SDcard will not be unmount.
And this isn't a Samdroung it's Huawei so don't compare
greez Gadlion
Click to expand...
Click to collapse
My biggest problem is that I can't see your pic
Dayum,
Click
Gadlion^1 said:
Idk whats your problem if i put my USB cable in my HAM
it shows me this so i really dont know whats your problem.
Dont choose any and the SDcard will not be unmount.
And this isn't a Samdroung it's Huawei so don't compare
greez Gadlion
Click to expand...
Click to collapse
mine automatically checks the last option...
so the sd card automatically unmounts and mounts to the pc.
it wont mount in pc unless one of the options is clicked. let it remain with the far bottom option 'remind me'...
if its mounted on pc, just disconnect from the icon in the pc taskbar (commonly in green color icon for usb connection)...it will simply mount back to the HAM automatically....
its one of a safety function in most of phones today without any option of "charge only"....sometimes the excess currents can effect the sdcard (there were some news before about it)...
and yes, its not samsung, its Huawei and this Huawei devices mostly lives longer than sammy...just my 2 cents..
theoppositeman said:
it wont mount in pc unless one of the options is clicked. let it remain with the far bottom option 'remind me'...
if its mounted on pc, just disconnect from the icon in the pc taskbar (commonly in green color icon for usb connection)...it will simply mount back to the HAM automatically....
its one of a safety function in most of phones today without any option of "charge only"....sometimes the excess currents can effect the sdcard (there were some news before about it)...
and yes, its not samsung, its Huawei and this Huawei devices mostly lives longer than sammy...just my 2 cents..
Click to expand...
Click to collapse
On my Mate it always mounts as "USB Storage Device" even when the "Always prompt me" option is checked. I've also noticed that it no longer mounts the internal storage just the external SD card. When I look through the file manager on the phone I noticed that the internal storage used to be located at mnt/sdcard and the external SD card was located at mnt/sdcard2. But now both mnt/sdcard and mnt/sdcard2 point to the external SD card and the internal storage is now located at mnt/shell/emulated. Does anyone know how to fix this so internal storage mounts on my computer again? I'm using a Mac.
vastphoto said:
On my Mate it always mounts as "USB Storage Device" even when the "Always prompt me" option is checked. I've also noticed that it no longer mounts the internal storage just the external SD card. When I look through the file manager on the phone I noticed that the internal storage used to be located at mnt/sdcard and the external SD card was located at mnt/sdcard2. But now both mnt/sdcard and mnt/sdcard2 point to the external SD card and the internal storage is now located at mnt/shell/emulated. Does anyone know how to fix this so internal storage mounts on my computer again? I'm using a Mac.
Click to expand...
Click to collapse
oh..Mac OS..if i had known better. sorry for that. havent used mac for such a time, but can you put HAM on MTP when connecting usb? if so, it will mount both internal and external as One Drive and when click (in pc) it will open into two drive internal and ext.
try to post this Q in the other forum,
-received my huawei mate or
- P6 Forum.
there're maybe some of our friends there can help. some might use Mac and maybe it'll help.

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