microSD card - problem of writing to - Galaxy Tab 7.7 General

Hello!
I have a problem to write data to external microSD card mounted to my Tab 7.7. I cannot copy/move files, create folders, etc. there when doing this using the Tab. At the same time I can do all of this from my PC when the Tab is connected to it - I can create folders on the microSD, copy or move file. Also, there is no problem to read data form the external card by the Tab (books, for example). So, the problem seems to be only with writing to the card from the Tab.
Could anyone give an advice please? Thank you.

nuhor68 said:
Hello!
I have a problem to write data to external microSD card mounted to my Tab 7.7. I cannot copy/move files, create folders, etc. there when doing this using the Tab. At the same time I can do all of this from my PC when the Tab is connected to it - I can create folders on the microSD, copy or move file. Also, there is no problem to read data form the external card by the Tab (books, for example). So, the problem seems to be only with writing to the card from the Tab.
Could anyone give an advice please? Thank you.
Click to expand...
Click to collapse
You can only use the internal File Manager app built-in the tablet, OR if you have a rooted tab, then use root explorer or estrongs in root mode to do so.
Basically, the microSD card is mounted in a very awkward state - normally you cannot move or delete files from the card, but with the built in file manager app you do have the proper permissions.

kazuni said:
You can only use the internal File Manager app built-in the tablet, OR if you have a rooted tab, then use root explorer or estrongs in root mode to do so.
Basically, the microSD card is mounted in a very awkward state - normally you cannot move or delete files from the card, but with the built in file manager app you do have the proper permissions.
Click to expand...
Click to collapse
Kazuni, yes, this works. Thank you very much for your help.

There is a fix here, post #7
http://forum.xda-developers.com/showthread.php?t=1414214
You need root, and make sure you do a nandroid backup prior to modifying the file.

pa64 said:
There is a fix here, post #7
http://forum.xda-developers.com/showthread.php?t=1414214
You need root, and make sure you do a nandroid backup prior to modifying the file.
Click to expand...
Click to collapse
I wonder if Gary's zip here will work on the 7.7 too?
http://forum.xda-developers.com/showthread.php?t=1458021

crunchie-uk said:
I wonder if Gary's zip here will work on the 7.7 too?
http://forum.xda-developers.com/showthread.php?t=1458021
Click to expand...
Click to collapse
Worrk fine on 6800, 3G
Thanks

That looks like the same edit i applied to my permissions.xml file.
Sent from another Galaxy...
Tab 7.7

Related

micro SD. Not showing in file manager [SOLVED]

As the title says. I've put the microsd card of my htc g2/z in the iconia and its working. Though i cant seem to find it anywhere in my file managers. (Music app shows ext. Sd content) tried es and file manager for honeycomb. I want to transfer music and video's over to internal sd. Since acer does not have usb drivers for mac, this is kind off my only option. Right?
SOLVED:
1.
Micro SD card slot shows up under: /mnt/external_SD.
So in your file explorer you have to go to root, and then mnt.
2. There are no mac drivers for the acer A500. You can try http://www.android.com/filetransfer/
Though, that program seems to crash alot!
3.
Transfer your files from mac to A500 using USB sticks, SD cards, FTP servers (loads in market).
USB stick can be found: mnt/external_USB
huppelkutje said:
Since acer does not have usb drivers for mac, this is kind off my only option. Right?
Click to expand...
Click to collapse
No it isn't your only option, you install this: http://www.android.com/filetransfer/.
Regards,
Dave
I will check it out. Thanks alot!
**edit**
Android file transfer keeps crashing as soon as i connect the tab. Tried reboot, but still crashing.
Any other solutions? I've tried FTP and such apps. They work, but ofcourse not as fast as usb connection.
and why is my micro sd card not showing in file explorers?
if you're using es strogs file manager than you first need to go to root (click on the left most icon on top) than go to /mnt than /external_sd <-- that's your micro sd card than simply copy and paste your files from there to your internal storage.
shock2sys said:
if you're using es strogs file manager than you first need to go to root (click on the left most icon on top) than go to /mnt than /external_sd <-- that's your micro sd card than simply copy and paste your files from there to your internal storage.
Click to expand...
Click to collapse
Thanks. This makes copying my music alot easier.
Dual File Manager works too. When you start it, just hit the Android back button and you'll see "external_sd"
Sucks that it doesn't mount on my PC though.
huppelkutje said:
Thanks. This makes copying my music alot easier.
Click to expand...
Click to collapse
I use Winamp on the desktop and the A500. It syncs music from my desktop machine to my tablet automatically whenever my tablet connects to my home wifi.
just put the card in and power down/on the device.
as mentioned, power down fully, not just On/off until the screen blanks. Found out the hard way, lazy person that I am.
Odd thing I've found though is that when connecting my Acer tab to my Acer .... err ... laptop ... feels so incestuous .... is that the mSD card appears as simply "SDCARD" while it's external_SD from the device itself. Ah the sweet smell of O/S kludges in the morning
qhinton said:
just put the card in and power down/on the device.
Click to expand...
Click to collapse
No need to power off > back on. Just put the sd card in and voila! It worked right away. Just could not find the sd card in ES file. But now I know it's under mnt/external_SD/
actually I wouldn't call it solved, its kind of an annoyance if anything else. Titanium Backup for one won't see it, I thought honeycomb was going to mnt internal as essc (or something like that) and the external sd as sdcard?
You can soft link it (now that we have root) but that won't carry across a reboot for now.
any how still loving this thing!

[Q] First impressions & SD card issue?

Hi,
Just Got the 7.7 3g - so far so good. Screen is as good as they say
The extra resolution defn. helps with web browsing.
Not finding any lag really.
7.7 is just about the limit for my two handed use but i would say the original 7" was a wee bit easier to handle but something with time should become more intuitive.
Just a few issues - external sd card is somewhat limited. Might be deliberate by Samsung but does not make sense.
Normal user apps cant access to the external sdcard. Using connect bot, i checked permissions and it seems that it is mounted by the os with system permissions, where as the internal sdcard is mounted as sd_rw.
This can't be correct? The only way to copy stuff to it is to use the samsung system file explorer as it has system permissions So copy to internal first then to external - this sounds like a bug?
I have not rooted this yet - might then chown to sd_rw get rid of this ?? There is a lot of entries in the vold.fstab to make sense of. Not a hacker so just looking around. A bit too early to start soft-bricking
But I take these don't have protected bootloaders so thats why we can root ?
Video playback is v.good but I am not able to throw on a bluray m2ts file (obviously with the sd card issue) and play smoothly. I found Dice player can handle m2ts by renaming it to a ts file. It then can use hardware decoding. Still drops frames but still watchable to a certain degree. For all other files mx player is still best. I have lossy transcoded some "native" blurays clips and seems that it handle high profile h264 1080p at high bitrates very well. Hoping, formatting sd card ext3/ext4 will improve things.
On the whole very impressive device - plus more ics goodies to come soon hopefully.
I've noticed some issues with the external SD card as well. Only the stock file manager can copy files from the internal storage to the external storage. I was able to transfer files to the ext. SD via Dooblou's Wifi Explorer, though. Although that would crap out a few times.
I'm hoping that we see some new ROMs with a different file system at any rate. The 4GB limit is so 1998.
Fix for external sd write issue
I've already posted a fix for this in our original thread?
davp said:
There is a fix for the write to external storage in this thread:
Samsung Galaxy Tab Plus->Galaxy Tab Plus General->unable to write files to external sd card
post #7
Requires root to apply fix.
There is a new permission that older file managers aren't asking for yet. The stock file manager knows to ask for it.
Fix worked for my P6810 wifi.
Click to expand...
Click to collapse
thaloneus said:
I can't post a link to the original post on another forum that worked for me so I will quote it:
Simple solution for external sdcard write access on Android 3.2...if you're rooted
I've found a simple solution for gaining write access to the external sdcard (/mnt/sdcard2) on Android 3.2. The sdcard is mounted r/w, but the owning group is media_rw which is linked to the WRITE_MEDIA_STORAGE permission. Unfortunately, this permission was not required for access to the external sdcard prior to 3.2 so most file management utilities do not request it when they run...meaning they only have read access to the card.
The simple solution, if you're rooted, is as follows:
1. Using a root-enabled file manager, navigate to /system/etc/permissions and make sure you have mounted the file system r/w.
2. Edit platform.xml and find the WRITE_EXTERNAL_STORAGE permission.
3. Add an additional group definition for this permission...<group gid="media_rw" />
4. Save the changes to the file.
5. Restart your tablet.
After this change, any apps that request the WRITE_EXTERNAL_STORAGE permission (which includes almost anything that access either of the sdcards) will gain group membership in both sdcard_rw AND media_rw, giving them r/w access to both sdcard filesystems.
Click to expand...
Click to collapse
Rooted and then applied this change.
Can write to ext sdcard !!!!
Cheers
Will apply as soon as i get tad, should be getting it today, cant wait
Sent from my GT-P1000 using XDA App
I think you have to format the sd card in the tab. I been able to transfer files no problem. Maybe its due to the mtp for the internal sd.
Sent from my GT-P6800 using xda premium
will6316 said:
I think you have to format the sd card in the tab. I been able to transfer files no problem. Maybe its due to the mtp for the internal sd.
Sent from my GT-P6800 using xda premium
Click to expand...
Click to collapse
Using downloaded apps or the stock File Manager app? Because I formatted the SD card in the Tab and nothing else can write to it. Now, I can drag and drop stuff from my computer via MTP, but that's not the same issue.
Ok, I'm trying to add the permission and it doesn't seem to save after a reboot. I'm rooted and made sure to mount that directory as R/W. After I edit platform.xml and reboot it simply reverts. Can anyone offer a more granular description to this n00b?
Thanks.
Edit: Nevermind. I edited the file on my computer and copied it over the original and am good to go.
burhanistan said:
Ok, I'm trying to add the permission and it doesn't seem to save after a reboot. I'm rooted and made sure to mount that directory as R/W. After I edit platform.xml and reboot it simply reverts. Can anyone offer a more granular description to this n00b?
Thanks.
Edit: Nevermind. I edited the file on my computer and copied it over the original and am good to go.
Click to expand...
Click to collapse
Thanks Burhanistan. I had this problem too and did what you did to get around it. Now I can read/write to the external SD with any file explorer.
Hello,
I can access the external SD with no problem, only issue is Titanium backup showing 440Mb capacity on the external SD (32Gb card).
Anyone with the same issue? Any fix?
Thanks.
No problem for me
davp said:
I've already posted a fix for this in our original thread?
Click to expand...
Click to collapse
Things must have changed as i got my P6800 recently did the upgrade from samsung and tried to copy to external sd and no problem for me. I never tried to do it pre upgrade but maybe the upgrade fixed that. Re i can copy and paste to device from my pc when its connected - to both device and sd. I can also copy using the the stock file manager from device to sd card.
No Issues here also
I recieved the tap a week ago. Now my 32GB Sandisk SD is here.
The Tap did at the first startup and using the described 12 MB Android update via internet conn.
Until now there is no issue between writing from/to SD over PC/MTP, copying between internal and external SD. Used preinstalled Filemanager and ES File Ex.
I tried it unrooted and rooted but not before the Android update.
davp said:
Simple solution for external sdcard write access on Android 3.2...if you're rooted
I've found a simple solution for gaining write access to the external sdcard (/mnt/sdcard2) on Android 3.2. The sdcard is mounted r/w, but the owning group is media_rw which is linked to the WRITE_MEDIA_STORAGE permission. Unfortunately, this permission was not required for access to the external sdcard prior to 3.2 so most file management utilities do not request it when they run...meaning they only have read access to the card.
The simple solution, if you're rooted, is as follows:
1. Using a root-enabled file manager, navigate to /system/etc/permissions and make sure you have mounted the file system r/w.
2. Edit platform.xml and find the WRITE_EXTERNAL_STORAGE permission.
3. Add an additional group definition for this permission...<group gid="media_rw" />
4. Save the changes to the file.
5. Restart your tablet.
After this change, any apps that request the WRITE_EXTERNAL_STORAGE permission (which includes almost anything that access either of the sdcards) will gain group membership in both sdcard_rw AND media_rw, giving them r/w access to both sdcard filesystems.
Click to expand...
Click to collapse
Some people are reporting the above procedure is no more needed, however, with several apps (like Titanium backup, and a SAMBA explorer), writing to the sdcard (extstorage/.../sdcard) is still impossible (GT6800 updated to latest samsung firmware).
I have used this procedure and can state that Titanium backup works now with the SD card.
Thanks to many reading within the XDA forum, I have found this simpler procedure :
- download / install the "Root Browser Lite" app from the android market
- add write access to group and other to the following directory: /system, /system/etc, /system/etc/permissions (with root browser Lite, press on the directory name during 3 seconds to get a contextual menu allowing to change the permissions)
- add write access to group and other to the file platform.xml in /system/etc/permissions
- use the editor of "Root Browser Lite" to modify the file platform.xml as described above (you should have two <group gid= ...> lines within the WRITE_EXTERNAL_STORAGE xml block.)
- save the file. Verify that a .bak file has been created and that the date of platform.xml changed.
- remove the write access.
- Turn off the GTAB, then turn it ON.
NB: Titanium backup still reports a erronous free size on the SD card (401MB), but backups on the sdcard work.
can't save the xlm doc
davp said:
I've already posted a fix for this in our original thread?
Click to expand...
Click to collapse
Hi, I edit the file but when I try to save it I fail because it says original saved as .....xlm.bak, but I can't find that file and the one I find is unchanged, any ideas?
There is an automated installer for the fix here:
http://forum.xda-developers.com/showthread.php?p=21670802
Is for the plus but worked fine for me
Sent from my SCH-I815 using Tapatalk
damm, must forget something, just followed exacty all the steps
still no writing on sd card
the automatic installer failed also
IS there a way to go into the (forgive the incorrect term) "registry" or similar, and have Android re-interpret/understand that instead of looking in "/sdcard"... it should instead look/point programs to "/mnt/sdcard/extstorages/sdcard"...
i heard that it might be called something like a "simlink" or "symbolic link"... maybe this could resolve the application installation issue to the sdcard as well as backups, transfers, etc... right now, not only do i run out of space too fast, can't install apps to the sd card, but as well, if i should run a hard reset... all my data erases! (yes, the internal "SD card" is erased in a hard reset)...
so, for all practical senses, when it says it will erase data, unless you KNOW you have copied ALL you user data to your "Real" SD Card, you will kill your data without even knowing it when you do a hard reset, even if you "thought" you were protected because "I saved my info to the SD card!"
(and yes, this was my experience today, so it's a fact.)
backup programs won't point to the sd card, (app manager, titanium, app list backup, etc)...
so unless you actively move files individually to the card (and know where to look)...
Bottom line... is there a hack/workaround on this that's not just "open up for file transfers" or is someone working on a ROM that might kill the partitioning and allow the /sdcard to actually point to a real external card?
Edited: Nevermind...
acess-rights-hell
hi forum
i would like to use the EzyKernel v1 - 23/02/2012 as in post http://forum.xda-developers.com/showthread.php?t=1513413&highlight=ezykernel
one of the prerequisites is a stock ZSKL firmware.
on the tab is/was XXKL4 AUT/CH
i successfully flashed the ZSKL2 - but that's where the nightmare started: i could not write to sdcard, busybox/superuser don't work properly, as i can't get root via su - which means to me, that there are messed up accessrights also in other places, not just the SD. the funny thing is, that i finally got the overclocking EzyKernel working, but not busybox + superuser.
does that sound familiar to anyone ?
i would really appreciate any ideas about this.
thank you
with best regards from switzerland
roland
could you please explain what "make sure you have mounted the file system r/w" means. And sorry for my noob question, but does this fix allow to install apps on the external sd card or I'm missing something.

[Q] How to write to extStorages/Sdcard?

My microSD card is mounted at extStorages/Sdcard but as read-only that I have to connect to PC to write files to it.
How can I move or copy files form internal sdcard to my microSD card without connecting to PC?
you need to root your device.
This is a good place to start:
http://forum.xda-developers.com/showthread.php?t=1454112
The stock file manager should be able to copy files to the SD card without rooting. However, in order to write to the SD card from any other app, you will need to modify your platform.xml. If that doesn't mean anything to you, http://forum.xda-developers.com/showthread.php?t=1491954.
Well it seems that I have to root it before that
http://forum.xda-developers.com/showpost.php?p=21590015&postcount=3
Thanks teiglin! I tried it and MyFiles works perfectly!
Access to external SDcard
temiatwork said:
you need to root your device.
This is a good place to start:
http://forum.xda-developers.com/showthread.php?t=1454112
Click to expand...
Click to collapse
Is this something the new ICS will solve without having to root my tablet?
lare said:
Is this something the new ICS will solve without having to root my tablet?
Click to expand...
Click to collapse
that would be good to know since this is something that is a bit fault in the original tablet.
It might be caused by google code since 3.2 android, unless samsung does a workaround.. i guess it will still exist.
http://www.xda-developers.com/andro...-preventing-write-access-to-external-storage/
eastdeal said:
My microSD card is mounted at extStorages/Sdcard but as read-only that I have to connect to PC to write files to it.
How can I move or copy files form internal sdcard to my microSD card without connecting to PC?
Click to expand...
Click to collapse
If you just want to transfer file to your tablet, there is an application called MyPhoneExplorer. You have to install it both in your computer and your device. To access your SD card you do need to root your phone.
Connection can be made through WiFI, USB, Bluetooth or Fixed IP address.
Hope it works for you.
The thanks button doesn't bite...try it!!!
Manipur said:
The thanks button doesn't bite...try it!!!
Click to expand...
Click to collapse
In my case it does.
It's not visible on my PC and never has been.
The 'posting' trick does not work to make it visible either.

Can't copy or move files on SD card (unrooted)

I can't copy or move (but I can delete or rename) files and folders on / from the SD card (SanDisk 8GB) of my unrooted Samsung Galaxy Grand Prime (SM-G531F) with Android 5.1.1. I still can create, rename or delete files and folders.
I tried with My files and ES File Explorer, then I formatted the card in phone and with SD Formatter.
With my PC I can copy or move files or folders on / from the SD card.
I changed the SD card with one similar from my Asus TF-101 tablet and the same phone problems occur, but the phone SD card works normally in tablet!
Many thanks in advance!
int sd fixer
From play store
minsetnaing said:
From play store
Click to expand...
Click to collapse
Thank you!
I tried, still don't work
migrosoft said:
Thank you!
I tried, still don't work
Click to expand...
Click to collapse
Hi bro ,i found this error, lag fix from playstore.this is perfect work.i testest.int sdfix and lag fix. Note root needed
Thank you, I will try it!
migrosoft said:
I can't copy or move (but I can delete or rename) files and folders on / from the SD card (SanDisk 8GB) of my unrooted Samsung Galaxy Grand Prime (SM-G531F) with Android 5.1.1. I still can create, rename or delete files and folders.
I tried with My files and ES File Explorer, then I formatted the card in phone and with SD Formatter.
With my PC I can copy or move files or folders on / from the SD card.
I changed the SD card with one similar from my Asus TF-101 tablet and the same phone problems occur, but the phone SD card works normally in tablet!
Many thanks in advance!
Click to expand...
Click to collapse
Please perform a wipe and factory reset from stock recovery unrooted via what?
ActivNoiz said:
Please perform a wipe and factory reset from stock recovery unrooted via what?
Click to expand...
Click to collapse
I mean the phone was never rooted.
migrosoft said:
I mean the phone was never rooted.
Click to expand...
Click to collapse
So, make a wipe/factory reset.
ActivNoiz said:
So, make a wipe/factory reset.
Click to expand...
Click to collapse
I'll try.
Please don't reset your whole phone, it won't solve the problem anyways.
With the advent of 5.1.1 Google added a new Media Security Protocol. The affect is that any app that doesn't have root securities can not move or copy files between Int and Ext storage, except those they generate.
The good news is that I know of a FREE file manager that can get around the problem by hooking into Androids Storage Access Framework.
One small problem is that the setting turns itself off frequently, so you have to go back in and turn it back on.
The better news is that it's footprint is only a little bit bigger than 'My Files' and it has a massive amount of capabilities and settings which are 100% configurable.
Enough of the suspense, "Ghost Commander"
Good luck, it's not for the weak of mind.
P.S. To get to the switch;
Top right three dot menu
Location
Home
Storage Access Framework
and search out the Mother directory of your Ext card, then select.
Grumpa
I know this is late but i just had this problem on my note 5.
Try installing / SandiskMemoryZone.Apk should let you move pics and files then.
Hit the thinks if this help anyone

Cannot Manually Add files to internal Storage SD Card, but Apps can be transfered

I'm having a rather unique problem with my the Micro SD card I installed.
I can format it as internal storage and it won't pop up for file managers or my computer.
This means I can't manually move files to it all.
Despite that when it's internal storage I can move apps to it and it adds new apps to it by default.
I could go to move all and move everything it can on, but it's a fairly slow SD card so I'm hoping to mainly put music, videos and any pictures on there.
I worry about it moving the apps that I want to keep in internal storage for speed over.
Does anyone know how I could fix this?
EDIT:
I didn't manage to figure out how to add files manually while it was internal storage through either internal file managers or through the computer.
But I did manage to find the SD card while it was portable.
The trick is to use the built in file explorer on the phone and copy a small file onto the SD card.
With there being something other than just Android files on the SD card it can then be discovered by the computer.
This mainly solves my problem as I plan to use it primarily for storage of music and game files, with the emulators being on the phone itself.
I had this issue a few days ago. You have 2 options to format, (1) as a internal storage and only your phone can read this and other option (2)to use on others devices. Using the second option I managed to transfer files to my microSD like it used to be.
While using the first option I was able only to transfer apps to it through the system.
I hope it helps
I'm using one, but I'm not even able to find it with File Manager?
Is that normal for Internal Storage?
I expected there to at least be a folder in the normal phone space called SD card or something?
Is there no way to manually move music there when it's internal storage?
Also I tried changing it to be portable but my computer still couldn't see it.
File manager could actually see it and open it but I couldn't copy paste anything to it.
So I turned it back to internal as I can at least move apps to it successfully at the moment.
Rajvir8 said:
I'm using one, but I'm not even able to find it with File Manager?
Is that normal for Internal Storage?
I expected there to at least be a folder in the normal phone space called SD card or something?
Is there no way to manually move music there when it's internal storage?
Also I tried changing it to be portable but my computer still couldn't see it.
File manager could actually see it and open it but I couldn't copy paste anything to it.
So I turned it back to internal as I can at least move apps to it successfully at the moment.
Click to expand...
Click to collapse
When I tried as Internal Storage any File Manager found my SDcard too... Thats why I'm using as portable.
After that, i could see this.
Maybe you're missing something like changing the USB connection from Charging to File transfering.
Did you checked this?
Yes it can see the rest of my phone and move files, so I've made sure to change it to file transferring.
When you used internal storage file managers failed to find your SD card as well?
dennismac said:
When I tried as Internal Storage any File Manager found my SDcard too... Thats why I'm using as portable.
Click to expand...
Click to collapse
Here your saying that you could find it and that's why you swapped over?
I assume you forgot to say it failed to show up separately and that's why you changed to portable.
Rajvir8 said:
Yes it can see the rest of my phone and move files, so I've made sure to change it to file transferring.
When you used internal storage file managers failed to find your SD card as well?
Here your saying that you could find it and that's why you swapped over?
I assume you forgot to say it failed to show up separately and that's why you changed to portable.
Click to expand...
Click to collapse
Sorry! Yes, I failed to find my SD card too, thats why i changed to portable.
Im assuming this is a normal behavior, my last Android phone was a Galaxy S2 and I stopped following Android changes for the lasts 4/5 years. But idk why you can't see it even in portable mode... That should work as worked for me.
Hope someone help you more than I did!
dennismac said:
Sorry! Yes, I failed to find my SD card too, thats why i changed to portable.
Im assuming this is a normal behavior, my last Android phone was a Galaxy S2 and I stopped following Android changes for the lasts 4/5 years. But idk why you can't see it even in portable mode... That should work as worked for me.
Hope someone help you more than I did!
Click to expand...
Click to collapse
Thank you for trying to help.
I think I might have figured out part of the problem, the file explorer I normally use doesn't have permission to add anything to the SD card. I'm not sure how I would go about giving it permission though.
But when I use the system built in I was able to copy paste some music onto it.
With a file on the SD Card my computer was able to locate it as well, and I can now copy and paste to the SD card using my computer.
So with your help I was able to figure out how to get portable working.
It is a bit disappointing that there isn't a way to manually add files while it is an internal storage though.
So again while your solution didn't directly work, it made me think and find a solution to my problem even if it's not the one I wanted.

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