I just got my Sandisk Ultra 32gb microsdhc UHS-1 (Class 10) card from http://www.amazon.com/gp/product/B007XZM6VG/ref=oh_details_o01_s00_i00 today and my TF700 (rooted) is unable to mount the SD Card. Everytime I try to "Mount External Storage" from settings, it displays "Preparing External Storage" for 1 second and then disappears, with no SD card mounted. I've formatted this SD card using FAT32 (4kb, 8kb, and 16kb cluster sizes), NTFS, and exFAT file systems as well as using my phone (Droid X) and none of them have been able to be mounted on my TF700, although the FAT32 formatted SD card was able to be mounted/recognized by my Droid X. However, I'm still not even sure if it's a faulty card or a faulty card reader because my TF700 was perfectly able to recognize and mount my phone's 16gb microsdhc card (class 2 or 4) without any problems.
I've read in another thread (http://forum.xda-developers.com/showthread.php?t=1761861) that people were having some trouble using microSDXC cards, but the one I have is just microSDHC (UHS-1), so there shouldn't be any problems recognizing it. Does anyone else have any idea what the problem might be?
wh06010 said:
I just got my Sandisk Ultra 32gb microsdhc UHS-1 (Class 10) card from http://www.amazon.com/gp/product/B007XZM6VG/ref=oh_details_o01_s00_i00 today and my TF700 (rooted) is unable to mount the SD Card. Everytime I try to "Mount External Storage" from settings, it displays "Preparing External Storage" for 1 second and then disappears, with no SD card mounted. I've formatted this SD card using FAT32 (4kb, 8kb, and 16kb cluster sizes), NTFS, and exFAT file systems as well as using my phone (Droid X) and none of them have been able to be mounted on my TF700, although the FAT32 formatted SD card was able to be mounted/recognized by my Droid X. However, I'm still not even sure if it's a faulty card or a faulty card reader because my TF700 was perfectly able to recognize and mount my phone's 16gb microsdhc card (class 2 or 4) without any problems.
I've read in another thread (http://forum.xda-developers.com/showthread.php?t=1761861) that people were having some trouble using microSDXC cards, but the one I have is just microSDHC (UHS-1), so there shouldn't be any problems recognizing it. Does anyone else have any idea what the problem might be?
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Everyone's having issues with microSD cards lol...Strange that SDHC and SDXC both aren't working right. Does anyone else have a SDHC card that is working? I can look at it when I get my tablet tomorrow, but I'm not sure if I have a SDHC card laying around.
I've just confirmed that my 32gb class 10 (UHS-1) card formatted in FAT32 works on 2 separate phones but is not recognized by my TF700 (32gb grey model). I've also confirmed that the TF700 is able to recognize and mount two separate 16gb microsdhc cards (class 2 or 4, obviously not UHS) formatted in FAT32. I'm beginning to wonder if it's just the UHS-1 compatibility that's causing the problem (maybe TF700's are not compatible with UHS speeds?) or if 32gb is too much for the TF700.
I have a 32gb microsdhc (and no at the moment I can't tell you anything about the class or speed or whatever) but I can say it works fine where my 64gb sdxc won't mount.
KilerG said:
Everyone's having issues with microSD cards lol...Strange that SDHC and SDXC both aren't working right. Does anyone else have a SDHC card that is working? I can look at it when I get my tablet tomorrow, but I'm not sure if I have a SDHC card laying around.
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wait what? so i can't use an microsd card with this tablet no matter what kind of card is?
nooktablet said:
wait what? so i can't use an microsd card with this tablet no matter what kind of card is?
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It looks to me like people are specifically having issues with UHS-1 cards. There's like a 6 page thread about it in the General forum. I know my 16GB microSDHC (not UHS-1) works perfectly fine.
im trying to buy one on amazon, can anyone post a 32gb that works
wh06010 said:
I just got my Sandisk Ultra 32gb microsdhc UHS-1 (Class 10) card from http://www.amazon.com/gp/product/B007XZM6VG/ref=oh_details_o01_s00_i00 today and my TF700 (rooted) is unable to mount the SD Card. Everytime I try to "Mount External Storage" from settings, it displays "Preparing External Storage" for 1 second and then disappears, with no SD card mounted. I've formatted this SD card using FAT32 (4kb, 8kb, and 16kb cluster sizes), NTFS, and exFAT file systems as well as using my phone (Droid X) and none of them have been able to be mounted on my TF700, although the FAT32 formatted SD card was able to be mounted/recognized by my Droid X. However, I'm still not even sure if it's a faulty card or a faulty card reader because my TF700 was perfectly able to recognize and mount my phone's 16gb microsdhc card (class 2 or 4) without any problems.
I've read in another thread (http://forum.xda-developers.com/showthread.php?t=1761861) that people were having some trouble using microSDXC cards, but the one I have is just microSDHC (UHS-1), so there shouldn't be any problems recognizing it. Does anyone else have any idea what the problem might be?
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Click to collapse
did you use SDFormatter to format the card? it might be good idea to do so prior to initial use.
My 32gb class 2 SDHC works fine. but my 64gb sdxc, which was fine in my xoom, is not recognized. Both are formatted the same
This is interesting. I have a dock and when I put the microsd into the SD converter, it works great. But if I take it out of the converter and put it in as a micro into the pad, the pad knows it is there, but will not mount it. This is very strange.
I found that the micro slot handles a 32gb card just fine, but not the 64 gb card. The SD slot in the dock handles all cards. I hope they come out with an update that corrects this.
Microsd card Lexar 32gb
I have the Microsdhc 32gb class 10 from Lexar i bought from amazon. This works fine, but just got my scandisk 64gb in mail today(uhs-1 class 10) and the tf700t doesnt recognize it like the rest of u guys. guess ill put it on my phone for now until they fix this issue.
I had the same problem with my kingston 16GB HC4 card.
My old 4GB HC6 card worked, but my 16GB not.
Reformatted with sdformatter and it didn't worked.
Changed the label of the card from "ASUS 16GB" to "16GB", and behold, it worked.
Tried to change the label back to "ASUS 16GB" and it is still working.
Strange problem...
Future firmware update will fix it.
http://forum.xda-developers.com/showthread.php?t=1797538
Micro SDcard receptacle
I can top some cards not working. Got my TF700 Wednesday and was pleased that everything seemed to be ok. Started to insert Micro SD and discovered the slot was empty. No receptacle was in the slot. Card was flush withtablet body, had to retrieve it with a pin. Replacement on the way. Asus needs to give little stickers to QC inspectors so they can tell who lets this kind of thing through. UPDATE: Asus tech told me to use small object to press edge piece of metal inside MicroSD slot. Viola the receptacle is alive and working.
troa11 said:
I have a 32gb microsdhc (and no at the moment I can't tell you anything about the class or speed or whatever) but I can say it works fine where my 64gb sdxc won't mount.
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Same here,32 GB micrsdhc class 10 runs fine,not 64 GB.
No luck with any SD cards
goralla said:
Same here,32 GB micrsdhc class 10 runs fine,not 64 GB.
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ASUS TF700T 32GB Grey
I have tried:
2GB SanDisk (normal Micro SD)
4GB SanDisk SDHC
16GB SanDisk SDXC
Also took the card out of my RAZR Maxx and it too did nothing in the device.
I also note that there is absolutely zero indication that I have even plugged anything into the slot. There no message "preparing media" that I have seen others post. I also do not see any option for preparing any external storage from the menu in settings.
I am wondering if the slot is bad, or the device has issues with SanDisk cards.
Detect it for a second
Hy, i recibed the infinity today and bought it with a microsd card y got from amazon
http://www.amazon.com/gp/product/B004G60AD6/ref=oh_details_o03_s00_i03?ie=UTF8&redirect=true
The tablet detect the card only for a second, but it goes way, the same problem as some guys that posted here.
Can anyone post where to buy a MicroSD that actually works?
Thanks
32GB Patriot micro SD
Crizthakidd said:
im trying to buy one on amazon, can anyone post a 32gb that works
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I got a class 10 Patriot micro SD from Frys and it appears to be working fine.
Had same issue here with a SanDisk 32GB Mobile Ultra® microSDHC™ UHS-I card, after the update to version 9.4.5.26 it worked fine..
kind regards,
I bought 2 Sandisk 64gb Micro SDXC cards and put one in the pad ant the other in the keyboard using the SD card adapter that came with the cards. Everything was fine the cards were mounted and were also recognised in Windows XP SP3 when I connected the pad to my PC using the Asus USB cable that comes with the pad. The problems started when I had over 33gb of data to transfer to one of the cards, it was going to take a long time and I thought it would be quicker if I connected the Micro SDXC card directly to the PC using a USB adapter - one of those small adapters that I got with some 32gb Micro SD cards - I tried two, one was a Lexar LRWM01U-7000 (Rev A) and the other a SanDisk D33D21.
Windows said the cards were RAW and had to be formatted so I formatted them and ended up with cards of only 27.4gb. Asus support said "the TF700 has been tested with micro and full size SD cards up to a capacity of 32GB. You may find Larger capacity cards also work but these have not been confirmed".
The best help came from Sandisk who have been very good and quick to respond. They thought that the TF700T may not support 64gb Micro SDXC cards and even offered to replace my 2 cards with 4 32gb Micro SD cards. They told me that the adapters I used (Lexar LRWM01U-7000 (Rev A) and the other a SanDisk D33D21) support only MicroSD/SDHC cards up to 32GB, not MicroSDXC 64GB cards. They suggested I try again with a USB card reader that supports Micro SDXC. So I bought a Trust multicard USB 3 reader which supports MicroSDXC. I could now see all the unused part of the cards in Disk Management. I used the free EaseUSPartition Master to wipe the card and then set it as an unformatted active partition. I then used SDFormatter V3.1 to format the cards to exFAT and everything now works fine. (The Sandisk 64gb Micro SDXC cards come formatted in exFAT when new)
I have seen comments that the cards have to be formatted in FAT32 but I have not found this to be the case. exFAT seems to work fine on the TF700T. The problem lies with Windows XP it will not recognise an exFAT 64gb Micro SDXC card when it is plugged directly into a dedicated Micro SD slot on the Trust multicard USB 3 reader, however if you put the Micro SD card in the SD adapter that comes with the card and then put this in the dedicated SD slot on the reader Windows XP will now see the card (Windows 7 SP1 however will recognise the card without having to use the SD adapter). I presume from the comments regarding FAT32 that a card with this format may well be recognised by XP in the dedicated Micro SD slot on the reader but I have not tried this. If you want FAT32 then you can do this with EaseUSPartition Master but if you need files of more than 4gb you will have to use exFAT.
sorry, you need to rephrase that if you want anyone to read it. As it is now, it is way to compact to read.
I bought 2 Sandisk 64gb Micro SDXC cards and put one in the pad the other in the keyboard using the SD card adapter that came with the cards.
Everything was fine the cards were mounted and were also recognized in Windows XP SP3 when I connected the pad to my PC using the Asus USB cable that comes with the pad.
The problems started when I had over 33gb of data to transfer to one of the cards.
This was going to take a long time I thought it would be faster if I connected the Micro SDXC card directly to the PC using a USB adapter.
It was one of those small adapters that I got with some 32gb Micro SD cards. Tried two, one was a Lexar LRWM01U-7000 (Rev A) and the other a SanDisk D33D21.
Windows said the cards were RAW and had to be formatted.
Formatted them and ended up with cards of only 27.4gb.
Asus support said "the TF700 has been tested with micro and full size SD cards up to a capacity of 32GB.
You may find Larger capacity cards also work but these have not been confirmed."
The best help came from Sandisk who have been very good and quick to respond.
Sandisk thought that the TF700T may not support 64gb Micro SDXC cards and even offered to replace my 2 cards with 4 32gb Micro SD cards.
I was told that the adapters I used (Lexar LRWM01U-7000 (Rev A) and the other a SanDisk D33D21) support only MicroSD/SDHC cards up to 32GB, not MicroSDXC 64GB cards.
They then suggested I try again with a USB card reader that supports Micro SDXC.
I then bought a Trust multicard USB 3 reader which supports MicroSDXC.
Now all the unused parts of the cards in Disk Management could be seen.
Using the free EaseUSPartition Master to wipe the card and then setting it as an un-formatted active partition.
I then used SDFormatter V3.1 to format the cards to exFAT and everything now works fine.
(*The Sandisk 64gb Micro SDXC cards come formatted in exFAT when new.)
I have seen comments that the cards have to be formatted in FAT32 but I have not found this to be the case. Formatting in exFAT seems to work fine on the TF700T.
The problem lies with Windows XP it will not recognize an exFAT 64gb Micro SDXC card when it is plugged directly into a dedicated Micro SD slot on the Trust multicard USB 3 reader.
Although if you put the Micro SD card in the SD adapter that comes with the card and then put this in the dedicated SD slot on the reader Windows XP will see the card
(*Windows 7 SP1 however will recognize the card without having to use the SD adapter.)
I presume from the comments regarding FAT32 that a card with this format may well be recognized by XP in the dedicated Micro SD slot on the reader but I have not tried this.
If you want FAT32 then you can do this with EaseUSPartition Master but if you need files of more than 4gb you will have to use exFAT.
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Click to collapse
Mmmm...lots of good info there thanx!
My dad and I bought a handful of these when they went on sale on Amazon. Mine worked fine after formatting, but both if his were saying the same thing yours did. I thought that was odd, it seemed like they were 32 gig cards. So I opened up a partition tool on my laptop and it turns out that Sandisk has over 30 gigs partitioned as unused space. All you have to do is delete the partitions and repartition the whole card on one partition and you'll be good to go. I used Fat32 if anyone is interested.
Sent from my unlocked Transformer Infinity
thanks for the helpful post. can you also run some sd card tests? i'm curious to see how true their class 10 rating is.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
I ran a few compared to my Lexar class 10 and they performed about the same. ~10 write and ~30 read.
Sent from my unlocked Transformer Infinity
So I recently got a USB OTG adapter and it works fine with my thumb drives, but when I try using a microSD card with it, either through a usb dongle thing or a microSD to SD card adapter, it won't mount. The card is formatted in Fat32 but I have tried ntfs and Fat16. It is a class 10 card, but my class 2 won't work either.
4th vategym
billypoke said:
So I recently got a USB OTG adapter and it works fine with my thumb drives, but when I try using a microSD card with it, either through a usb dongle thing or a microSD to SD card adapter, it won't mount. The card is formatted in Fat32 but I have tried ntfs and Fat16. It is a class 10 card, but my class 2 won't work either.
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Click to collapse
Do you have any other microsd card to try? Or another adaptor?
dydigital said:
Do you have any other microsd card to try? Or another adaptor?
Click to expand...
Click to collapse
Yeah, I've tried both the 8GB class 10 card that I have as well as a 1GB card of unknown class (It's older, so probably 1 or 2). I also tried both a USB to microSD adapter as well as a full size SD card reader with an SD to MicroSD adapter. I have the USB OTG Helper app by Ray of Light (in Play Store). I'm on Synergy right now, but I'm considering trying an AOSP rom to see if that is the problem.
i formatted a sandisk 64gb micro sd to put into my tablet and start copying files to the micro sd via the memory card reader, there is nothing on the card prior to transferring the files but as soon as the green bar goes up it cancels and gives a 0x80070037 error with unrecognised device and prompts me to check the micro sd for errors, i proceed to do so and it finds nothing, i retry a couple of times and i get the same error, i try different memory card readers and cables and they all give the same error.
i then attempt to transfer my files while the micro sd is in the tablet and surprisingly it's transferring the files fine, i'm a bit confused by that and i was wondering if anyone can give some hindsight as to what is going on?
there is obviously a problem with the micro sd because i can't get any data on it while it's in the memory card reader and i will have to get a new micro sd card eventually, i'm not buying anymore sandisk memory after this, reason why is because my 32gb micro sd also by sandisk has the same problem, both brought within 9 months of each other, that's £60 down the drain, for now the 64gb will have to do till i buy a new micro sd card but this is just ridiculous, i wasted 4 hours trying to sort this problem out with no progress and i'm exhausted, any ideas or solutions would be helpful.
i've tested my usb ports extensively (so it can't be the usb ports causing the problem), and formatted the sandisk micro sd cards multiple times (to no avail), i've tried 2 different usb drives, and 3 different micro sd cards from samsung and a no name brand and they transfer the same data fine, but as soon as i plug in the sandisk and transfer the data to them i get the errors so i've pinpointed out where the problem lies, i just want a solution to sort all of this out so any help would be grateful.
if i get any changes in the situation i will update in this topic.
Just a update, contacted amazon and will be getting a refund for both micro sd cards, thanks god for that, won't be buying SanDisk ever again after that.
HUYI said:
Just a update, contacted amazon and will be getting a refund for both micro sd cards, thanks god for that, won't be buying SanDisk ever again after that.
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Unreconized device is it has lost connection to your tab. I've had the same problem. Installed a new usb 3.0 card and plugged into that, and the problem went away. if you watch my computer you will see your device disappear and reappear.
shaun298 said:
Unreconized device is it has lost connection to your tab. I've had the same problem. Installed a new usb 3.0 card and plugged into that, and the problem went away. if you watch my computer you will see your device disappear and reappear.
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Click to collapse
i tested out both micro sd cards on a memory card reader not from the tablet and the data transferred fine when the micro sd card was installed on the tablet, amazon have agreed to refund the 64gb sandisk but not the 32gb micro sd unfortunately i'm going to buy a usb 3.0 memory card reader and see if i get better results with the 32gb micro sd, not confident that i will though, just going to use the 32gb for something else till it dies, nothing else i can do with it, they can't replace it because it's over a year old and i left it too late.
just plugged in the 32gb micro sd card now and the memory card is not disappearing and reappearing in my computer like you said, the only time i get problem is when data is copied to it then the device disappears.
I took my sd card out to plug it into my pc with an adaptor so I could do some stuff with it but the pc refuses to read it, just says i need to format it! It's a sandisk extreme 128gb (which I believe comes pre-formatted and ready for use). I have a load of stuff on it which my phone can see perfectly fine, and i can access that stuff if i plug my phone into the pc. I just can't access it directly if I plug the card into an adaptor.
Could this be some sort of encryption done by the phone to the card causing the PC to keep asking me to format it as soon as I plug it in? I have *NOT* done an "encrypt sd card" on it so it can't be that. I dont know why else windows would not be able to read it.
What PC OS version?
exFAT formatted mass storages couldn't be accessed by some older OS's
themissionimpossible said:
What PC OS version?
exFAT formatted mass storages couldn't be accessed by some older OS's
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win10
Windows10 has included support for exFAT.
I suspect your Sandisk micro SDXC 128GB comes pre formatted in exFAT,
My Samsung Micro SDXC PRO+ 128GB was preformatted in exFAT and has its own SD adapter included.
If you're using an adapter that was included with the Sandisk micro SDXC, it's possible that the SD slot of your PC is not compatible with the SDXC specifcations.
In that case I'd try a microSD USB adapter.
themissionimpossible said:
Windows10 has included support for exFAT.
I suspect your Sandisk micro SDXC 128GB comes pre formatted in exFAT,
My Samsung Micro SDXC PRO+ 128GB was preformatted in exFAT and has its own SD adapter included.
If you're using an adapter that was included with the Sandisk micro SDXC, it's possible that the SD slot of your PC is not compatible with the SDXC specifcations.
In that case I'd try a microSD USB adapter.
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I am just using a tiny lexar card reader I must have had with an old lexar card, sd card goes in the little slot and it plugs straight into usb port. worked with my older sandisk 32gb card perfectly. maybe the reader is too old to work with the 128gb card.