accessing memory from computer - Nexus 7 Q&A, Help & Troubleshooting

yeah ever since 4.2 you all know that everytime you wipe it gets the old sdcard memory to a new /0/ location well I moved it back to the root and all works fine but my windows computer doesnt see the change when I connect it with usb so I can't access my files from my computer.... know of a fix? thanks

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[Q] How do you properly transfer files while booted into android?

Hi as title says I want to know how to transfer files propelry while booted into android kernel.
For example when you plug in your phone vai USB and use as card reader I can easily transfer files to and from but the problem is that when I unplug and go to view these files on phone the file system hasn't updated and I cant locate them on card.
Ive tried the unmount feature aswell as a hot reboot but nothing. Only way I can seem to do it is to power off and then boot back into android.
Is there any easier way or procedure that I need to follow?
TheATHEiST said:
Hi as title says I want to know how to transfer files propelry while booted into android kernel.
For example when you plug in your phone vai USB and use as card reader I can easily transfer files to and from but the problem is that when I unplug and go to view these files on phone the file system hasn't updated and I cant locate them on card.
Ive tried the unmount feature aswell as a hot reboot but nothing. Only way I can seem to do it is to power off and then boot back into android.
Is there any easier way or procedure that I need to follow?
Click to expand...
Click to collapse
best bet is to load the files in winmo then boot into android
Dude that wasnt my question, obviously I can do that, thats not the point.
My question was the best way to transfer files while booted into android, if it possible then obviously booting into windows and back to android every time you want to move/access files isnt the "best" way and its inconvient.
I appreciate your reply but your answer was irelivant unless its the ONLY way which I doubt (well hope)
Does anybody have a solution?
As of now, the only good way to transfer files is indeed through WinMo (or with a MicroSD USB reader, with phone powered off or in WinMo). Most Android builds support USB Mass Storage, but I haven't heard of one that handles it perfectly (which isn't too surprising, considering Android runs -sort of- from the SD card).
So in short, no there is no other way at this moment that I know of.
Edit: There is a way: through WiFi! There are some applications available on the market that turn your phone into an FTP-server, I use Websharing (Lite) for this. They don't need an unmounted SD card, so they'll probably solve your problem.
StephanV said:
Edit: There is a way: through WiFi! There are some applications available on the market that turn your phone into an FTP-server, I use Websharing (Lite) for this. They don't need an unmounted SD card, so they'll probably solve your problem.
Click to expand...
Click to collapse
Yeah I was thinking more of teh same route, Ive been using drop box for the moment but FTP server would be much better.
I was hoping there would be a solution to been able to access teh files that have been sent via mass storage mode but this could be just as good.
thnx for suggestion.
This is not a quickfix, but I was frustrated with the same problem last night when I was trying to locate the files that I just transferred to the phone. I noticed that unmounting, and remounting doesn't refresh the folders in the system. But I managed to find the transferred files after unmounting the sd card, and then browsing to the root sd card path instead of the mounted partition.
So, instead of mnt/sdcard/ you should look for the files in /sdcard after unmounting the card. See if that works, at least it worked for me last night.
Use droid explorer

sd problem keeps saying its write protected...

i was about too put some of my videos on the tab from my pc so i connected threw usb and it shows a cdrom drive wtf? And the files pop up but it says write protect than everything goes away.
I just tried a extra empty sd card and it does the same thing..
Anyone know whats going on?
all im running is baxbite kernel for the overclock which i been using for the pass week with no problems till today..
I guess no one knows? I looked it up and it seems like its a common problem but i don't see anything about anyone else having this problem with a galaxy tab except me..
Right now im using webhareing too copy my files over wifi from my home network and it works great but not as fast as usb
I just dont get it evertime i connect the tab too my pc it shows a cdrom than the files show up in it but i cant copy stuff over or even delete a file than 30sec later it disappears..
I remember that happening to vibrant phones. The external sd card wasn't mounted properly so the computer saw it as a cd drive.
What is your computer set up? A windows 7 pc installs the correct driver files. A windows xp pc needs you to get the drivers and install them. I pray for people with mac's.
Just search the general section for "windows xp usb drivers". You don't need to install samsung kies.

[Q] Can the Acer a500 support any other Android OS released except Honeycomb or ICS?

​hello, I accidentally deleted the /sdcard folder and now it appears that i've lost all my data. So, i've deleted the folder by mistake from windows explorer and the tablet "auto created" a new one and none of my data shows up. I've tried about a dozen recovery programs but none will recognize my tablet. How can I make it show in Windows 7 like a Removable Device and not like a Portable Media Player. I kown it's more of a windows question but maybe someone else here made the stupid mistake i did and kowns how to slove my problem or please send me to a forum were I can get some help.
ps: I kown not to write anything on the tablet's storage until I solve this.
ps2: i don't actually have a sd card, all my data is on the internal memory.
Thank you!
Click to expand...
Click to collapse
​Had some free time lately and did some research and I found out that the reason I can’t access the internal storage through software like recuva or other data recovery sw, it is because Honeycomb uses MTP (Media Transfer Protocol) instead of UMS (USB Mass Storage), like android did until honeycomb and data recovery software doesn’t work on MTP, or at least none of the ones I’ve tried, and I’ve tried a few. So, I decided to change the thread question to: Can the Acer a500 support any other Android OS released except honeycomb or ICS (I read it uses MTP also)? and: Can the internal storage be accessed by a recovery software on Linux or any kind of OS? plus: Did anyone manage to recover data from internal storage through any method?
Ps: I don’t need a full working rom, just the touch screen or a mouse so I can mount the internal storage.
Ps2: I would have tried it myself, but I don’t have the knowledge(all I could think about was to download the rom from other tablets that run on 2.3) or the time to joggle with roms on my acer so if any of you developers out there could help me I would be in great debt to you.
Have you tried these apps? (seems you need root though)
I don't know if they will work, but just trying to help you out (I too have deleted my internal memory, but it always happened while ROM flashing... forgot to back up my files first).
https://market.android.com/details?id=fahrbot.apps.undelete
https://market.android.com/details?id=com.hexamob.hexamobrecoverypro
https://market.android.com/details?id=com.hexamob.hexamobrecoverylite
(^ the free and possibly not as good version of the one above it)
Also, on the W7 computer, have you tried Recuva?
Again, not sure if it will work, but I have used it for memory cards, flash drives, etc and it worked really well.
I think the biggest challenge though would be the way that the computer reads the tablet. It doesn't appear like a normal external USB device.
So, I think that an app will be your best bet. I think too that Android keeps apps*, OS*, and user data (your pics, movies, documents, etc) on separate partitions, so installing an app shouldn't overwrite any of your old stuff. I am only 90% sure of that though. :/
*It may actually be apps + OS
Were you rooted??? Did you make a nandroid backup??? If you have a nandroid back up you can restore just the data partition from recovery and you will be current as of your last backup. Another major reason to root your device.
vladx1007 said:
​hello, i accidentally deleted the /sdcard folder and now it appears that i've lost all my data. So, i've deleted the folder by mistake from windows explorer and the tablet "auto created" a new one and none of my data shows up. I've tried about a dozen recovery programs but none will recognize my tablet. How can I make it show in Windows 7 like a Removable Device and not like a Portable Media Player. I kown it's more of a windows question but maybe someone else here made the stupid mistake i did and kowns how to slove my problem or please send me to a forum were I can get some help.
ps: I kown not to write anything on the tablet's storage until I solve this.
ps2: i don't actually have a sd card, all my data is on the internal memory.
Thank you!
Click to expand...
Click to collapse
This is untested, but it you install
https://market.android.com/details?...51bGwsMSwxLDEsImNvbS5mdW5reWZyZXNoLnNhbWJhIl0.
on your tablet then try to access your files using your recovery program on your pc. If you have questions about samba server look here.
http://forum.xda-developers.com/showthread.php?t=1317847&highlight=samba
same issue
just connected to PC in usb debug trying to copy to pc. copy did not go thru but sdcard went empty !!!
i did not do any mistake.
samba did not help show old files/folders.
need to find a way to undelete
nuzbabu said:
just connected to PC in usb debug trying to copy to pc. copy did not go thru but sdcard went empty !!!
i did not do any mistake.
samba did not help show old files/folders.
need to find a way to undelete
Click to expand...
Click to collapse
My thoughts were that Samba acts as a server and would be used with wifi to show as local network share on your pc. Then to use a program to recovery your files. I think that idea is not possible after further checks. Seems none of my recovery apps will recover from network drive. Some will save to Network drive though, but that doesnt help you.
One of the apps from the market spexwood suggested may be your only hope.
I would suggest getting an sdcard and save your photos and videos on it.. much easier to recover if erased.
​Had some free time lately and did some research and I found out that the reason I can’t access the internal storage through software like recuva or other data recovery sw, it is because Honeycomb uses MTP (Media Transfer Protocol) instead of UMS (USB Mass Storage), like android did until honeycomb and data recovery software doesn’t work on MTP, or at least none of the ones I’ve tried, and I’ve tried a few. So, I decided to change the thread question to: Can the Acer a500 support any other Android OS released except honeycomb or ICS (I read it uses MTP also)? and: Can the internal storage be accessed by a recovery software on Linux or any kind of OS? plus: Did anyone manage to recover data from internal storage through any method?
Ps: I don’t need a full working rom, just the touch screen or a mouse so I can mount the internal storage.
Ps2: I would have tried it myself, but I don’t have the knowledge(all I could think about was to download the rom from other tablets that run on 2.3) or the time to joggle with roms on my acer so if any of you developers out there could help me I would be in great debt to you.

Change folder name via MTP

Hey guys,
when I connect my nexus 4 with usb to my pc there are no problem
I can browse my internal storage but when I change a folder name it won't work, my pc goes crazy .
I have to unplug my device and plug it back in in order to connect it again.
Copy and moving of data works flawless , only changing the folder names does not work.
Does anyone have an idea?
streety12 said:
Hey guys,
when I connect my nexus 4 with usb to my pc there are no problem
I can browse my internal storage but when I change a folder name it won't work, my pc goes crazy .
I have to unplug my device and plug it back in in order to connect it again.
Copy and moving of data works flawless , only changing the folder names does not work.
Does anyone have an idea?
Click to expand...
Click to collapse
i used to have MTP bugs similar to this on my one X
usually a restart of the phone solved them
I tried your advice but still it does not work.
What I noticed is that when I create a folder on my phone and then plug it via usb to my pc the folder is vanished. My pc does not recognize my created folder. I have to restart my phone in order to see the folder on my pc.
Same problem here.
i'm using win8, pac man rom.
streety12 said:
I tried your advice but still it does not work.
What I noticed is that when I create a folder on my phone and then plug it via usb to my pc the folder is vanished. My pc does not recognize my created folder. I have to restart my phone in order to see the folder on my pc.
Click to expand...
Click to collapse
This might be related to the refreshing mechanism. The folder you created does not vanish, just have not been updated. Maybe an SD card refresh app, like Rescan SD card, would work.
This is typical with MTP, however I haven't had these issues using a Nexus device with Windows 8. If all else fails, you're better off using an Android file manager to rename the folders.

USB debugging not connecting to mac

I have usb debugging checked, i even downloaded that android file transfer utility for mac, i selected the media file transfer option under the android u.i ..and still nothing has worked, i even tried mounting the storage through twrp but nothing seems to be working. Please help i'm trying to flash roms but i won't be able to if i don't have usb debugging working to put the files on the internal storage. Anyone know how to solve this issue? :crying:
yoh65 said:
I have usb debugging checked, i even downloaded that android file transfer utility for mac, i selected the media file transfer option under the android u.i ..and still nothing has worked, i even tried mounting the storage through twrp but nothing seems to be working. Please help i'm trying to flash roms but i won't be able to if i don't have usb debugging working to put the files on the internal storage. Anyone know how to solve this issue? :crying:
Click to expand...
Click to collapse
Android File Transfer has never worked for me on Mac going back to several of my android devices as far back as the OG Epic/Epic 4G/S3. The only Android phones it ever worked with for me were oddly Nexus devices, Nexus S 4G and Galaxy Nexus (could have something to do with those phones not having external SD and the way the internal NAND is set up).
Anyway, i'd suggest you just use your memory card to move things back and forth or do what i do which is use FTP wireless between phone and Mac. I use Transmit on the Mac and ES File Explorer (file manager) and SwiFTP (FTP server) on the phone. Never have to plug and unplug USB or take out memory card. My Mac's I.P address is mapped to ES File Explorer and i just browse it and copy back and forth whatever i want OR i run SwiFTP on the phone and browse it from the Mac.
Of-course there are tons of other FTP apps out there you can look into that work just fine as well.
I do find it odd that even mounting via TWRP does not work for you. At least that works fine for me but who wants to turn off their phone anytime they want to transfer a file..
LordLugard said:
Android File Transfer has never worked for me on Mac going back to several of my android devices as far back as the OG Epic/Epic 4G/S3. The only Android phones it ever worked with for me were oddly Nexus devices, Nexus S 4G and Galaxy Nexus (could have something to do with those phones not having external SD and the way the internal NAND is set up).
Anyway, i'd suggest you just use your memory card to move things back and forth or do what i do which is use FTP wireless between phone and Mac. I use Transmit on the Mac and ES File Explorer (file manager) and SwiFTP (FTP server) on the phone. Never have to plug and unplug USB or take out memory card. My Mac's I.P address is mapped to ES File Explorer and i just browse it and copy back and forth whatever i want OR i run SwiFTP on the phone and browse it from the Mac.
Of-course there are tons of other FTP apps out there you can look into that work just fine as well.
I do find it odd that even mounting via TWRP does not work for you. At least that works fine for me but who wants to turn off their phone anytime they want to transfer a file..
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Click to collapse
you saved my life !!! <3 using all my thanks on you!

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