Related
Disregard
So did the 64GB SDXC work or not? I know there's been some conflicting information on here before as to whether or not it actually supports SDXC cards.
Yes it works.
Format it to NTFS and it will work. (Takes a while though)
Card is an Transcend SDXC 64GB SD card in the dock.
Sorry for the delay.
My total storage is now 128GB
JEV66 said:
Yes it works.
Format it to NTFS and it will work. (Takes a while though)
Card is an Transcend SDXC 64GB SD card in the dock.
Sorry for the delay.
My total storage is now 128GB
Click to expand...
Click to collapse
ok, so why cant i get mine to work? ive formated it every which way i could, with gpartition and sd format 3.1 and i cant get it to mount. i have a lexar 64gb SDXC.
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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?
Click to expand...
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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,
Had some problems trying SD cards and MicroSD cards for the Infinity/Prime docks/tablet. Thought I would share them so others could also update and post their compatibility issues.
PNY 16GB (MicroSD) / 32GB (SD) Pro-Elite: Status: Incompatible: Formated with Fat32/NTFS and exFAT. All three had no problems reading from the card however writing any files completely locked the tablet up at the 90MB mark causing it to force reboot. Tried 2 cards purchased from Best Buy (16GB and 32GB) on both my Prime and Infinity tablets/docks both had these issues. Card is rated for 35MB write however I found no circumstance using my PC to copy files to where I got over 10-11MB/sec. Read sat at around 21MB/sec.
Sandisk Ultra 32GB (MicroSD, (Docked with MicroSD Adapter)): Status: Compatible: Formated with Fat32/NTFS and exFAT. All three work great reading and writing on the tablet. Writes were a steady 22MB+, Reads just as good. I assume once the I/O bottleneck is fixed this will improve, as it sits on the PC I get around 30-40MB write, 55+MB read (burst). Writing a 3GB file ~ 15-20MB wite.
I should mention I was using a USB 3.0 card reader to read/write when testing on the PC.
Please update this thread with your cards you have tried so others like me will not have to return to BestBuy 3 times to finally get a compatible card.
Thanks!
Might the incompatibility be caused by card class?
Midnitte said:
Might the incompatibility be caused by card class?
Click to expand...
Click to collapse
It is possible however I have not tried any other cards from any other brands.
The PNY is listed as: SDHC Class 10, UHS-1
The SanDisk is listed as: SDHC Class 10 UHS-1 so they seem to be exactly the same class.
mikevipe said:
Had some problems trying SD cards and MicroSD cards for the Infinity/Prime docks/tablet. Thought I would share them so others could also update and post their compatibility issues.
PNY 16GB (MicroSD) / 32GB (SD) Pro-Elite: Status: Incompatible: Formated with Fat32/NTFS and exFAT. All three had no problems reading from the card however writing any files completely locked the tablet up at the 90MB mark causing it to force reboot. Tried 2 cards purchased from Best Buy (16GB and 32GB) on both my Prime and Infinity tablets/docks both had these issues. Card is rated for 35MB write however I found no circumstance using my PC to copy files to where I got over 10-11MB/sec. Read sat at around 21MB/sec.
Sandisk Ultra 32GB (MicroSD, (Docked with MicroSD Adapter)): Status: Compatible: Formated with Fat32/NTFS and exFAT. All three work great reading and writing on the tablet. Writes were a steady 22MB+, Reads just as good. I assume once the I/O bottleneck is fixed this will improve, as it sits on the PC I get around 30-40MB write, 55+MB read (burst). Writing a 3GB file ~ 15-20MB wite.
I should mention I was using a USB 3.0 card reader to read/write when testing on the PC.
Please update this thread with your cards you have tried so others like me will not have to return to BestBuy 3 times to finally get a compatible card.
Thanks!
Click to expand...
Click to collapse
Hi - I bought a Sandisk Class 10 Microsd Ultra 32GB and it does not work with my TF700, and this is after the update... any suggestions on how to make it work? I cannot return the same now, and am hence stuck with it !
cool_scorpion said:
Hi - I bought a Sandisk Class 10 Microsd Ultra 32GB and it does not work with my TF700, and this is after the update... any suggestions on how to make it work? I cannot return the same now, and am hence stuck with it !
Click to expand...
Click to collapse
I also bought Sandisk Ultra 32GB Class 10 micro sd to be used on my phone Xperia Mini, i find my phone to be very slow, does this means that my phone is incompatible with this card.
joekhawlhring said:
I also bought Sandisk Ultra 32GB Class 10 micro sd to be used on my phone Xperia Mini, i find my phone to be very slow, does this means that my phone is incompatible with this card.
Click to expand...
Click to collapse
I do not know how you formatted it, and which filesystem(s) your phone supports. I'd set out my question in the Experia forum(s).
I bought a 64GB Samsung microSDXC UHS-I card pro class 10
http://www.amazon.com/Samsung-micro-UHS-1-Class-Galaxy/dp/B00AK31M3G
And it works great, havent had a problem with it, I tested it through a sd card slot with sd card adapter and I got a constant 16-17 mb/s write speed with files bigger than 5 gb. I also tried formatting in exFAT and NTFS, and both work.
I hope this clears up some doubts about UHS-I cards. Or at least doubts about this card.
I also bought the SanDisk Ultra 32GB Class 10 microSDHC UHS-I Memory Card includes an SD adapter and use that on my TF700 without any issues at all.
I have connected it both directly in the SD slot and also via the adaptor via the OTG dongle into the USB slot as a 2nd memory card.
Both have worked reall well, so am surprised the card is not working for some.
http://www.amazon.co.uk/gp/product/B007JTKLEK/ref=oh_details_o07_s00_i00?ie=UTF8&psc=1
I just got my SanDisk Ultra 64GB microSDXC Class 10 UHS-1 from amazon today, worked out of the package and then reformated to exFAT and worked also. Haven't do much else with it but so far so good.
http://www.amazon.com/SanDisk-Micro...8&qid=1365569881&sr=8-1&keywords=microsd+64gb
For an SD card I picked up a Polaroid 64GB SDXC Class 10 UHS-1 for $32 a couple weeks ago (was going to get a SanDisk as well but for $20 off figured I'd give it a shot and it had some nice write/read speeds), worked out of the box on my dock and did the formats. Rght now I've got it filled up with 60gb of movies for an upcoming trip and everything seems to be working fine as well.
http://www.amazon.com/gp/product/B008LSK8UK/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
Hopefully Sandisk Ultra SDHC 32gb(speed 10) will work in my dock 'cause I've already made order about it...
I've newest firmwares in Tablet and dock
wurgy said:
For an SD card I picked up a Polaroid 64GB SDXC Class 10 UHS-1 for $32 a couple weeks ago (was going to get a SanDisk as well but for $20 off figured I'd give it a shot and it had some nice write/read speeds), worked out of the box on my dock and did the formats. Rght now I've got it filled up with 60gb of movies for an upcoming trip and everything seems to be working fine as well.
Click to expand...
Click to collapse
Did you try that Polaroid card in the dock only or does it both work in the dock and the tablet. I might just buy 2 of these and be done with it.
Meshuggah333 said:
Did you try that Polaroid card in the dock only or does it both work in the dock and the tablet. I might just buy 2 of these and be done with it.
Click to expand...
Click to collapse
Sorry, the Polaroid is an SD only. I picked up the SanDisk for the microSD. I didn't find a Polaroid option with 64gb for the micro.
Sent from my Galaxy Nexus using Tapatalk 2
Is 16gb enough for apps to sd?
kali113 said:
I bought a 64GB Samsung microSDXC UHS-I card pro class 10
http://www.amazon.com/Samsung-micro-UHS-1-Class-Galaxy/dp/B00AK31M3G
And it works great, havent had a problem with it, I tested it through a sd card slot with sd card adapter and I got a constant 16-17 mb/s write speed with files bigger than 5 gb. I also tried formatting in exFAT and NTFS, and both work.
I hope this clears up some doubts about UHS-I cards. Or at least doubts about this card.
Click to expand...
Click to collapse
just wanted to be clear before i bought card. did this card work fine inserted INTERNALLY into tablet itself? i don't have a dock and don't see me getting one in the near future
redheadplantguy said:
just wanted to be clear before i bought card. did this card work fine inserted INTERNALLY into tablet itself? i don't have a dock and don't see me getting one in the near future
Click to expand...
Click to collapse
Yes, I used it in the microSD card slot and it works great!
redheadplantguy said:
just wanted to be clear before i bought card. did this card work fine inserted INTERNALLY into tablet itself? i don't have a dock and don't see me getting one in the near future
Click to expand...
Click to collapse
I am currently using 64G Samsung in my TF700t. It works perfectly fine with the original format extFAT. I reformated it with FAT32 and Ext4 for Data2SD. I don't have any problem so far.
LetMeKnow said:
I am currently using 64G Samsung in my TF700t. It works perfectly fine with the original format extFAT. I reformated it with FAT32 and Ext4 for Data2SD. I don't have any problem so far.
Click to expand...
Click to collapse
I got the Samsung UHS-1 from Amazon as well, tested it and I am very happy with this investment of $65. Now when I do a TWRP backup, it finishes in 212 seconds for 1850 MB, averaging 8.7MB per second. When I copy files over from a PC, using the Silicon Power USB 3.0 card reader which is UHS-1 compatible, I constant have a write speed of 14.5 MB/s and the Read speed is over 27 MB/s.
They advertise to have a read speed of 70 and write speed of 20 though.
Your pc probably just cant go any faster .
I'm using two 64gb SanDisk SDXC class 10 in NTFS format, and two Medion (aldi) 32 gb class 6 in NTFS.
All four work perfectly well. But they are only used for storing media.
Send From My Samsung Galaxy S3 Using Tapatalk 2
I use SanDisk Mobile Ultra 32GB UHS card as my Data2SD card. Formatted with FAT32 and ext2. NTFS works fine too. But be aware that ext 4 with Data2SD on this card might cause some trouble. I had a lot of freezes and random reboots with Data2SD as long as I used ext4 format. Now I formatted to ext2 and so far I had no freezes nor reboots.
Comp Addable!
mikevipe said:
Had some problems trying SD cards and MicroSD cards for the Infinity/Prime docks/tablet. Thought I would share them so others could also update and post their compatibility issues.
PNY 16GB (MicroSD) / 32GB (SD) Pro-Elite: Status: Incompatible: Formated with Fat32/NTFS and exFAT. All three had no problems reading from the card however writing any files completely locked the tablet up at the 90MB mark causing it to force reboot. Tried 2 cards purchased from Best Buy (16GB and 32GB) on both my Prime and Infinity tablets/docks both had these issues. Card is rated for 35MB write however I found no circumstance using my PC to copy files to where I got over 10-11MB/sec. Read sat at around 21MB/sec.
Sandisk Ultra 32GB (MicroSD, (Docked with MicroSD Adapter)): Status: Compatible: Formated with Fat32/NTFS and exFAT. All three work great reading and writing on the tablet. Writes were a steady 22MB+, Reads just as good. I assume once the I/O bottleneck is fixed this will improve, as it sits on the PC I get around 30-40MB write, 55+MB read (burst). Writing a 3GB file ~ 15-20MB wite.
I should mention I was using a USB 3.0 card reader to read/write when testing on the PC.
Please update this thread with your cards you have tried so others like me will not have to return to BestBuy 3 times to finally get a compatible card.
Thanks!
Click to expand...
Click to collapse
Compatible! :good:Samsung 32 GB IHS? Class 10 MicroSD with adapter $22.99 at Frys in Houston
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.
Click to expand...
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
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.