Question question regarding USB OTG Cables/Micro SD Card Readers. I know you can view content on them (movies, music, documents, etc). However, can you write to the flash drive/micro sd card? Basically, I'm curious because I know I could store roms on the flash drive or micro sd and play them from there, but I would like to store saves to it as well (so saves would not have to be stored on the Nexus 7).
I'm interested in the Meenova MicroSD Card Reader (I go for the card reader over a USB OTG because I do not need a large flash drive - a 64GB micro sdxc is sufficient), just curious if I can write to it as well or only read.
Thanks!
I've had no trouble writing to my Kingston 16GB SDHC through a usb reader.
The only thing I would mention is that you'll need a custom kernel to access NTFS file systems. Also you should note that the kernel in question needs to have write enabled for the NTFS module. This had me stumped when installing a kernel without it enabled, and it only ever mounted it read-only. Of course, if you're using FAT then you don't need to worry about any of this.
a9y said:
I've had no trouble writing to my Kingston 16GB SDHC through a usb reader.
Click to expand...
Click to collapse
I'm close to purchasing the Nexus 7 2013. The one thing holding me back is the USB drive issue. I want to be able to access the drive via the microUSB port and read&write to it like I would on a PC. You know, open an excel file, modify it, and close/save. All on the USB drive. Are you saying that can be done easily enough? I don't mind rooting, either. Don't want to but can if necessary.
Thanks. So from your post and reading a few other posts, unless you're rooted, you cannot write to NTFS (only read), but you can write to Fat systems. I really don't plan on having any files greater than 4GB so I believe Fat will work. Thanks!
Related
Well first off I want to apologize for such a lame first thread, but I've been a heavy reader for a while now and this is the first time I haven't been able to solve it.
I bought a Sandisk 16gb micro sdhc class 2 card for my fuze and having a very difficult time formatting it.
I put it in my phone, connected it to my comp via usb and selected "disk drive" option on my phone, then on my comp selected the "open folder to view files" option and I put some files on it. I then disconnected it from my comp and a few minutes later checked to see if my files were on my phone, the files were there but it said the card was full when there was only ~1.2gigs on it. So I connected it back to my computer and when I tried to open the card it said that the card was not formatted, so I select the format now option and it will fail, saying windows could not complete formatting. I then downloaded the panasonic sd formatter from www.sdcard.com and tried formatting again and it says the write protection switch is on and to turn it off, well there isnt a write protection switch on the card...
So I'm not sure what to do at this point, can anyone offer any insight to this issue?
Thanks in advance for any help.
There is a write protection switch on the SD adapter
well in my case the "sd adapter" is my fuze/tp which has never had any problems serving as a disk drive adapter for my sd card in the past.
my laptop has a slot for memory cards and i do have a micro>sd apadter but my lt can not read sd hc cards.
no one can help or offer any insight?
I really don't want to have to buy another one..
I would be willing to donate to whoever can help me fix this..
SanDisk microSDHC card
I did move the write protection switch both ways and it still says write protected in either direction. please help. Thanks
i think it may be your version of windows. i had a similar problem even with a 4gb non-sdhc sd card. it can be read on the phone, but for some reason can't be read if put in the laptop. i just didn't format it because i know it worked.
when i bought a 16gb micro sd for my touch pro, funnily the laptop recognised it even with an adaptor. so maybe since i updated my windows vista, it also updated 'the driver' for the card?
sorry more anecdotal than anything else. just try to use windows update - if you use windows.it may help as in my case.
did u solved the problem???
i have the same problem
i can see the files from the card but i cant delete/copy/format (
the card may be a fake. registration does not actually authenticate the card. where were these cards purchased? if ebay or some similar site you should probably contact sandisk support to verify authenticity 866-sandisk
I have a same problem. Although it is a Transcend disc 16GB class 2. No, I didn't buy it on ebay. I am using Windows 7 x64. Copying to the card can happen when it is in the phone mounted.
same exact freaking problem
ok i'm having this same problem with a sandisk 8gb card... It's very annoying as i can read but basiaclly cannot write anything to it or format it. How was this problem solved?
still no solution?
im dealing with the same issue i have a 16g sd that came with my d1 and now my pc reads 14g from my phone then 31mb from a flash reader??
SD Formatter for SDHC
Kaptinkrunk said:
im dealing with the same issue i have a 16g sd that came with my d1 and now my pc reads 14g from my phone then 31mb from a flash reader??
Click to expand...
Click to collapse
Check out drgopoos thread and my post:
Szczepanik said:
Thank you this thread has helped!
You asked for more info and I would recommend two free programs:
1) H2testw 1.4 which tests to see if your card has genuine capacity
2) SD Formatter for SDHC This software formats all SD memory cards, SDHC memory cards,
Cheers
Tom
Click to expand...
Click to collapse
Cheers
Tom
I'll check up on it later thanks, what gets me is it reads fine from my phone but put in a micro SD adapter thing and my pc doesnt read it right, but any other comp it reads fine
Fascinating Devil Helly Bean Sept 1 Devil 1.3.1...
Check my last post on the thread I quoted - you are probably using SD slot on PC. Try USB. What card were you using.
Cheers
Tom
Sent from my NexusHD2 using Tapatalk 2
Szczepanik said:
Check my last post on the thread I quoted - you are probably using SD slot on PC. Try USB. What card were you using.
Cheers
Tom
Sent from my NexusHD2 using Tapatalk 2
Click to expand...
Click to collapse
Well its a dell PC flash card reader, the SD to micro I've tried 3 and I'll see what kind of SD but it was the stock one from my d1
Fascinating
After running Myns Warn Doughnut from the miniSD I can no longer delete any files or reformat the miniSD card. I've tried formating it when synced in WM6 and using Format Flash 2.85. Nothing can touch this card. It reports no errors when deleting or formating...but no files are ever removed. What's the deal? There is no "write protect" switch on a mini, right?
tonyzoc said:
After running Myns Warn Doughnut from the miniSD I can no longer delete any files or reformat the miniSD card. I've tried formating it when synced in WM6 and using Format Flash 2.85. Nothing can touch this card. It reports no errors when deleting or formating...but no files are ever removed. What's the deal? There is no "write protect" switch on a mini, right?
Click to expand...
Click to collapse
Well, there's no switch (unless you use SD adapter and try to format from computer). Probably the best option is to use card reader and to format card from the computer.
P.S. I thought HTC TyTN II (Kaiser) supports only MicroSD, but you've mentioned MiniSD, strange
Make sure your micro SD card adapter which you will undoubtedly use in your card reader does not have a lock switch, i've been caught out by that before.
Sorry...microSD....(I use miniSD on my Tornado)...
I've misplaced my micro to SD adapter so I'm trying to format on the phone itself, either through ActiveSync browsing or on the phone with Flash Format. Guess I'll need to pick up an adapter. Why can't I delete any files? Maybe the card is defective?
THe card may indeed have a problem, but a reformat using a card adaptor/card reader should fix this, had a similar problem with an older 2gb SD, reformatting sorted that out.
Running from SD does raise the risk of a bad block failure, since SD cards are really storage media, using them in the same way as an HDD makes it more likely to wear quicker than normal.
The plot thickens....
Ok...I got my Transcend SD card adapter...the microSD reports to be write protected....
I tried the following with the SD Card adapter on my MSi Wind Netbook:
Formating...it won't let me.
Booting Puppy Linux and tried GParted to blow away the partition...it wouldn't let me.
Booting into OSX and trying to detroy or format the partition with Disk Utility...no dice.
I tried another card, a 128Mb, and it worked ok...although I did have some trouble getting it to read initially.
Could have a bad SD Card adapter....
Or a defective microSD card...
I was able to format the 128Mb microSD on the phone with Flash Format with no problem.
Is it possible the 8gb microSD is write protected at a file level (actual permissions). I did try changing them in Puppy Linux.
So $40 on eBay gets me a 16gb Class 4....hmmmm
P.S. more info:
I can read the card with no problem both on the phone and the computer.
I do have Android running off the microSD.
One more comment....
The Android boot menu offers an option to "Fix Permissions". I tried that and it didn't change anything...but!
If there are permissions to fix, then the Android on the SD card must be setting permissions on the install. Maybe this is the cause of the read only status of the microSD card (?). Is there a way to remove Android from the microSD card via that menu? or is there a command line ability to change permissions of the whole microSD card recursively?
I already ordered a 16gb card and I'm going to throw the problem one away as soon as I get the new one, but I'm hoping to salvage the old one if possible....also, I don't want this same issue to happen on the new card.
The only way I can think of is perhaps to repartition the card, that should, in theory, wipe everything.
Since you must be using a card adaptor, doe this have a write protect tab? some do, if not I'd check to see if there is an obstruction that is somehow making the card reader think that the Sd is write protected.
Regards 'fix permissions', this fixes the file permissions of a number of system files, usually only needed after installing an update. I'm not sure how this would make an SD write protected, since as far as I know it only fixes the owner and user bits of the files.
tonyzoc said:
One more comment....
The Android boot menu offers an option to "Fix Permissions". I tried that and it didn't change anything...but!
If there are permissions to fix, then the Android on the SD card must be setting permissions on the install. Maybe this is the cause of the read only status of the microSD card (?). Is there a way to remove Android from the microSD card via that menu? or is there a command line ability to change permissions of the whole microSD card recursively?
I already ordered a 16gb card and I'm going to throw the problem one away as soon as I get the new one, but I'm hoping to salvage the old one if possible....also, I don't want this same issue to happen on the new card.
Click to expand...
Click to collapse
I'd do like that:
Boot Linux (Live CD or installed system (if you have it)).
1. Enter command (into terminal): sudo gparted
I. Try to unmount MicroSD (not to eject)
II. Delete partition
III. Save changes
IV. Create new partition
V. Save changes
2. If gParted failed, then go to System -> Administration -> Disk utility and try to do the same steps.
3. Enter command: sudo nautilus (or another file browser).
If you still won't be able to delete data - problem definitely isn't in the permissions.
4. Maybe bad SD adapter. You should find someone who has normal card reader (sorry, I live too far from you ) which supports reading directly from MicroSD (without SD adapter).
EDIT:
5. Some adapters and older card readers doesn't support MicroSDHC. Cards up to 2 GB are simple MicroSD and you won't have problems even with old readers.
Starting from 4 GB there's only MicroSDHC (HC stands for High Capacity) cards. This technology is newer and that's why some adapters (maybe even HTC TyTN II) might face some problems.
RE: Card
Hi,
plug it into PC with linux open terminal (firt look to device id) and write.
$sudo mkfs fat 32/dev/sdb - SUDO(superuser do) MKFS- FORMATE !!! , format, /dev/-device which U formate.
BUT DETECT first what /dev/is sdcard.
OR do it thru GPARTED.
Write protect tab i on the adapter s not an issue. I tested it with another card and it works fine...also I can't write to or format (using Flash Format) the microSD on the phone without an adatper. Also, I tried repartitioning with GParted off a Puppy Linux boot, with DiskUtility on a Mac OSX boot, and with fdisk on a windows boot. The disk is untouchable.
I tried this with puppy linux with has gparted on it. Thought the disk is recognize (sdc1) , after I dismount it doesn't show up at all in gparted. I can't select the drive as it's not seen.
I also tried a low level format with HDDGURU Low Level Format tool. I tried deleting the partition with DiskUtility on OSX and Windows Disk Manager....no dice.
The adpater I have is the Transcend adapter that came with the card. Also, It works fine with 2 other cards I have (128mb and 2 gb) so I doubt it's the adapter.
Vytelo said:
I'd do like that:
Boot Linux (Live CD or installed system (if you have it)).
1. Enter command (into terminal): sudo gparted
I. Try to unmount MicroSD (not to eject)
II. Delete partition
III. Save changes
IV. Create new partition
V. Save changes
2. If gParted failed, then go to System -> Administration -> Disk utility and try to do the same steps.
3. Enter command: sudo nautilus (or another file browser).
If you still won't be able to delete data - problem definitely isn't in the permissions.
4. Maybe bad SD adapter. You should find someone who has normal card reader (sorry, I live too far from you ) which supports reading directly from MicroSD (without SD adapter).
EDIT:
5. Some adapters and older card readers doesn't support MicroSDHC. Cards up to 2 GB are simple MicroSD and you won't have problems even with old readers.
Starting from 4 GB there's only MicroSDHC (HC stands for High Capacity) cards. This technology is newer and that's why some adapters (maybe even HTC TyTN II) might face some problems.
Click to expand...
Click to collapse
That pretty much confirms it then, I'm afraid the SD is no more, it has shuffled of this mortal coil, it has ceased to be, it is an ex-SD card.
I recently got around to unlocking and rooting my nexus v2 and every time I plug in the otg cable with SD card it will not pick it up but yet when I plug in my 2tb passport it picks it up but it will not let me play off it any suggestions
jay.fertig said:
I recently got around to unlocking and rooting my nexus v2 and every time I plug in the otg cable with SD card it will not pick it up but yet when I plug in my 2tb passport it picks it up but it will not let me play off it any suggestions
Click to expand...
Click to collapse
You're using an SD card reader, I gather? I've tried two (with multiple cables) but never had luck with SD cards, only flash drives.
Pandae said:
You're using an SD card reader, I gather? I've tried two (with multiple cables) but never had luck with SD cards, only flash drives.
Click to expand...
Click to collapse
Go figure all that work just to get a flash drive
A flash drive is less convenient than the SD card you already have, but it doesn't need an adapter for the USB OTG cable.
Maybe this will help--or not. I have been able to access an SD card via OTG connector and card reader. It's been a fickle set-up. This is what seems to work for me.
Rooted stock 4.4.4 + Stickmount Pro (haven't tried it without but will in a bit). ATM, I'm on 3.4.0 ElementalX but usually run Franco so I don't think kernel has any effect. Connect all hardware--card in reader, reader and OTG cable, OTG to N7. Reboot the N7. When it reboots, Stickmount shows that the sd card has been mounted. From ESFile Explorer, I can go to storage and see the card plus access it's content. I can unmount and remount the card, but if I unmount the device and remove the OTG and/or card, I have to reboot before it can be remounted. You can see in the pic which reader and which card I'm using. If it works without Stickmount, I'll report so. Otherwise, assume Stickmount is required.
Hi guys.
let me say first that I am aware of whole writing/permission issue with KitKat.
And I am happy to use the build in file manager to copy stuff around.
But as I had some issues with my sd card(files were copied then dissapear etc) I bought Samsung! Sd card Class10 32GB and to this card i am not able to write at all!
I can format, create a folder but that's about it. Not able to copy anything using the 'internal' file manager.
Everything works fine if I can connect the card via OTG.
Any ideas? As i am stacked now with 2 SD cards I cannot use.
And btw with all this write restriction explanations. Why I cannot write to internal card slot only?! If it is OTG I can do anything with any application. Somehow all the explanations I have read do not add up in this part.
Any enlightment highly appreciated.
Cheers
vstar said:
Hi guys.
let me say first that I am aware of whole writing/permission issue with KitKat.
And I am happy to use the build in file manager to copy stuff around.
But as I had some issues with my sd card(files were copied then dissapear etc) I bought Samsung! Sd card Class10 32GB and to this card i am not able to write at all!
I can format, create a folder but that's about it. Not able to copy anything using the 'internal' file manager.
Everything works fine if I can connect the card via OTG.
Any ideas? As i am stacked now with 2 SD cards I cannot use.
And btw with all this write restriction explanations. Why I cannot write to internal card slot only?! If it is OTG I can do anything with any application. Somehow all the explanations I have read do not add up in this part.
Any enlightment highly appreciated.
Cheers
Click to expand...
Click to collapse
Sounds to me like you bought a counterfeit /fake MicroSDCard , if you purchased it off ebay then chances are it's a fake. the packaging looks identical to real Samsung products and it is very hard to tell the difference.
Do you have a card reader for your pc, you can do a test on it to tell if its fake, there are several programs that can do this but the most popular is H2testw .
Take a look at these threads for more info
http://forum.xda-developers.com/galaxy-s3/accessories/samsung-micro-sd-cards-beware-fakes-t1727546
http://forum.xda-developers.com/general/accessories/fake-samsung-evo-64gb-micro-sd-cards-t2852818
The issue you are describing where files just disappear is a telltale sign of these fake or counterfeit cards, usually the cards only have about 2GB of writable space and the rest is bad memory.
Btw on a side note: I have no problems on my tab pro 8.4 , I have every single GB of my Sandisk 64gb sdcard filled. and have no problems with it..
Phone formats micro sd card automatically when mounted, without permission. Each time I put the card in it gets wiped. I'm trying to download dash cam footage to my phone but as soon as the card is inserted into the slot, it gets wiped. Can this be stopped?
Use the USB cable to upload directly from your PC. You'll need the Samsung driver for that.
The card may have an incompatible file system on it or data corruption. Bypass using a card with data on it to help understand this behavior.
Try formatting the card in the phone.
If that doesn't work, on the PC use a low level formatting app to format/check it for bad sectors, etc. Then format it again using the 10+.
The issue may be the 10+ either hardware or firmware. Try a -known- good card in it.
The Lexar V30 512gb cards work perfectly.
All I did was format it with the 10+
blackhawk said:
Try formatting the card in the phone.
If that doesn't work, on the PC use a low level formatting app to format/check it for bad sectors, etc. Then format it again using the 10+.
The issue may be the 10+ either hardware or firmware. Try a -known- good card in it.
The Lexar V30 512gb cards work perfectly.
All I did was format it with the 10+
Click to expand...
Click to collapse
The card is formatted by the dash cam as fat32 I think. Not sure if the dash cam will recognize it if I formatted using the phone. I'll try.
ognjen992 said:
The card is formatted by the dash cam as fat32 I think. Not sure if the dash cam will recognize it if I formatted using the phone. I'll try.
Click to expand...
Click to collapse
I would avoid using it like that; download/upload to the card in the phone instead.
It's transfers data at about 1.5 gb per minute via USB2. Also constantly pulling the card can cause trouble. That card tray is not robust. It's far safer to leave it embedded for a number of reasons including ESD.
Using different devices to add data to a card can cause card corruption. A common issue when using multiple Canon cams.
Formatting the card in the device before using eliminates the issue.
I'm not sure anyone is understanding the issue here. The micro sd card is used in my dash camera to record while driving. The camera itself doesn't have an USB interface or wifi. The only way to transfer footage is to take the card out of the camera and put it into my phone, or pc. On pc it works fine, I plug in the micro sd using an sd adapter, and copy the footage. But It's a hassle on the road, so I tried using my galaxy note 10+. However, as soon as I put the micro sd card into the phone, it gets formatted, contents (footage) deleted, and android folders created, automatically. Is there a way to prevent this so that I can open the footage on my phone?
Thank you all for help, it's been driving me nuts.
ognjen992 said:
I'm not sure anyone is understanding the issue here. The micro sd card is used in my dash camera to record while driving. The camera itself doesn't have an USB interface or wifi. The only way to transfer footage is to take the card out of the camera and put it into my phone, or pc. On pc it works fine, I plug in the micro sd using an sd adapter, and copy the footage. But It's a hassle on the road, so I tried using my galaxy note 10+. However, as soon as I put the micro sd card into the phone, it gets formatted, contents (footage) deleted, and android folders created, automatically. Is there a way to prevent this so that I can open the footage on my phone?
Thank you all for help, it's been driving me nuts.
Click to expand...
Click to collapse
I do understand. Been there, done it and lost data because of it.
Download to PC only*.
That card swap is the problem.
*a card reader on the C port would probably work.
blackhawk said:
I do understand. Been there, done it and lost data because of it.
Download to PC only*.
That card swap is the problem.
*a card reader on the C port would probably work.
Click to expand...
Click to collapse
Tried the reader, also wipes it. Maybe using an sd reader with an adapter and write protect in lock position
I didn't know it's a known issue. Kinda dumb it wasn't resolved.
Thank you!
ognjen992 said:
Tried the reader, also wipes it. Maybe using an sd reader with an adapter and write protect in lock position
I didn't know it's a known issue. Kinda dumb it wasn't resolved.
Thank you!
Click to expand...
Click to collapse
I've seen it with Canon cams; you never use the same SD card in different cam without formatting it first.
It can corrupt the card...
It's odd the phone auto formats the card. Never saw that before.
Almost like it's some sort of script command on the card.
ognjen992 said:
Tried the reader, also wipes it. Maybe using an sd reader with an adapter and write protect in lock position
I didn't know it's a known issue. Kinda dumb it wasn't resolved.
Thank you!
Click to expand...
Click to collapse
It's the FAT32 filesystem. If that's all your camera can use, then you will have to first transfer to a PC and then use a USB cable to transfer to your phone OR maybe use an OTG cable to transfer it from a card reader.
Don