Database Develop

micro SDXC 64GB

I'm wondering if the SanDisk Ultra SDXC 64GB would work in the HTC magic?
If it works, what file system is to be used? exFat doesn't work right? So Will I have to, like use partition magic to force a 64gb fat32 partition?
I have no experience with android 2.1 or any version for that matter, still awaiting delivery of my first android phone. The HTC Magic (unbranded, naturally)

premier69 said:
I'm wondering if the SanDisk Ultra SDXC 64GB would work in the HTC magic?
If it works, what file system is to be used? exFat doesn't work right? So Will I have to, like use partition magic to force a 64gb fat32 partition?
I have no experience with android 2.1 or any version for that matter, still awaiting delivery of my first android phone. The HTC Magic (unbranded, naturally)
Click to expand...
Click to collapse
My question... is who in the hell would want to put a $350+ card in a $200 cell phone.

Binary100100 said:
My question... is who in the hell would want to put a $350+ card in a $200 cell phone.
Click to expand...
Click to collapse
Me obviously.
and the reason is so i can switch from using the card in my digital camera, my HTC shift and the android phone. and not to have to keep switching multiple cards.. really a lot of reasons.

premier69 said:
Me obviously.
and the reason is so i can switch from using the card in my digital camera, my HTC shift and the android phone. and not to have to keep switching multiple cards.. really a lot of reasons.
Click to expand...
Click to collapse
Well it sounds like someone here has money to burn.
In theory it should work... however I haven't heard of anyone using one before so I cannot say for certain. Give it a try and let us know either way.

Do Not bother getting it. A friend of mine working for FCC center. I snagged one to try out. Man it does not work with any format. Seems like this is hardware of the phone that can not handle it. Friend got technician to look at it, they are all confused why not.
All newer phone from Nexus One, will all takes in the card and read and writes it. But just slow.
Plus $350 is a rip off. The MSRP price for a 64GB SDXC is on $210 to authorized premier resellers.

narutofma said:
Do Not bother getting it. A friend of mine working for FCC center. I snagged one to try out. Man it does not work with any format. Seems like this is hardware of the phone that can not handle it. Friend got technician to look at it, they are all confused why not.
All newer phone from Nexus One, will all takes in the card and read and writes it. But just slow.
Plus $350 is a rip off. The MSRP price for a 64GB SDXC is on $210 to authorized premier resellers.
Click to expand...
Click to collapse
Thanks, of what I understand from your message.

$210 for MSRP? I told him it cost $110. He must be day dreaming aging while I was lecturing him. Anyway it is best to wait for compatibility check from phone manufacturing for best hardware compatibility.
Sent from my HTC Magic using XDA App

narutofma said:
All newer phone from Nexus One, will all takes in the card and read and writes it. But just slow.
Click to expand...
Click to collapse
so wait, sdxc actually works with android on newer phones like the nexus one?

INeedYourHelp said:
so wait, sdxc actually works with android on newer phones like the nexus one?
Click to expand...
Click to collapse
A few of the phone specs I've seen has said up to 32gb but from my experience they're pretty unreliable at updating those figures as newer and bigger cards get released, that's why I started this thread asking for confirmation.
I'm going to sell off my HTC MAGIC vodafone branded and buy , either samsung galaxy 9000 or the new HTC Desire HD (european EVO4G). I just can't decide yet.

Not all new phones are ready for sdxc memory cards. They are both hardware and software prerequisite.
I would do some research on what phone u want to get. But at same time galaxy s sux, sdxc. Do not work with the card.
Warning spoiler : galaxy s pro will be compatible with sdxc. The phone will only be exclusive in Korea.
sent from myTouch 3g 1.2 using XDA app

ekoandrew said:
Not all new phones are ready for sdxc memory cards. They are both hardware and software prerequisite.
Click to expand...
Click to collapse
What he said. You can't just pop an SDXC card on an SDHC-compatible device. It's like saying you're wearing size 14 shoes because your size 11 foot fits inside those shoes.

It wont work because (AFAIK) Android doesnt contain drivers for SDXC. If you insert a SDXC card into your Android device, it will problably just treat it as a SDHC card.

premier69 said:
I'm wondering if the SanDisk Ultra SDXC 64GB would work in the HTC magic?
If it works, what file system is to be used? exFat doesn't work right? So Will I have to, like use partition magic to force a 64gb fat32 partition?
I have no experience with android 2.1 or any version for that matter, still awaiting delivery of my first android phone. The HTC Magic (unbranded, naturally)
Click to expand...
Click to collapse
That's a regular SD c ard, not a micro format, there are no known 64gb micro SDXC cards in existence. Also a 32gb, regular SDHC card is still 65$ US - and that's class 4, I can't begin to imagine how much a 64gb SDXC is going to cost.
Also how reliable will it be, there's limits to this stuff when managing the size of flash chips.

Now it exist
http://www.engadget.com/2011/05/26/kingmax-flaunts-worlds-first-64gb-microsd-card/

I'm pretty sure it will work - mine works in my SGSI, SGSII, Sensation, and Transformer.
http://www.androidnz.net/2011/09/sandisk-64gb-micro-sdxc-cards-confirmed.html

Now that the cards are proven to exist
And ignoring the question of cost, which is not a technical concern
There are a few objective questions that might merit answers, such as:
1-Are the micro-SDHC and micro-SDXC physical formats, the card sizes and contacts, the same or not? Web posts say that they are and are not, apparently half of those posts are in error and it seems that if the sdxc cards are working in sdhc phones--they are?
2-Is a specific file system driver, in the phone's OS distribution, needed? If so, what?
3-Is a specific file system format of the sdxc card itself required? If so, what? (Presumably requiring a format on a computer that provides for that option if the phone doesn't.)
And then of course, a list of phones actually known and confirmed to work with the precious beasts.
Personally, yes, I think 64GB on the removeable card is ridiculous. But then again, it will cost less than an iPod Classic and it will let me take an extensive music collection "everywhere". Which my own 32GB card won't right now.
There's a reason the iPhone4S has a 64GB memory option now. For some of us, the extra memory will be gladly put to good and economical use. If our phones support it.

At present no phone fully supports microsdxc, even if it reads the card, you wont get the full size or speed from a phone, even the fastest phone on the market cannot take full advantage of the speed of present card, and most phones accepts microsdhc at class 2-10, but you only get low transfer rate, I have the new 16GB uhs1 microsdhc from both toshiba (class 10) and sandisk (class 6), both have verys low speed just like that of class 2-4 when used in mobile phones, so uhs 1 microsdhc is out of the question in mobile phone.
I also seen available the sandisk 64GB microsdxc available in hong kong, not really expensive when compared to the USA, it's approximate USD150, will get one next month to try out.

That's way better than the US prices. Please DO let us know how it works out.
Personally, I don't care about not having full xc speed, etc., I'd be happy just to double the storage capacity. Sandisk US has no interest in the matter, all they know is that Moto "only supports" 32GB. Which they really don't understand means only that no one has tested 64GB sdxc in the phone, so no one has anything to say about it.

Rred said:
That's way better than the US prices. Please DO let us know how it works out.
Personally, I don't care about not having full xc speed, etc., I'd be happy just to double the storage capacity. Sandisk US has no interest in the matter, all they know is that Moto "only supports" 32GB. Which they really don't understand means only that no one has tested 64GB sdxc in the phone, so no one has anything to say about it.
Click to expand...
Click to collapse
the guy in post 15 has tried it on the samsung.

hi kms108, I see you own an Xperia Ray. Did you try the 64gb sd in the Ray? Can you share with us if it works or not? While Googling I only find people speculating that since it works on the Play, it should work on the Ray too, but I hope you can confirm this for real..

SDXC support?

I was wondering if this phone supports micro SDXC cards? it would be nice to pop in a 64GB card. I keep running out of space on a 32GB micro SDHC.

Not sure about that but...
What I do when I run out of space is find out what flashable zips I'm currently using and keep those. Then I put the rest of them onto my computer in case I need them later. No need to keep every single zip I've ever used on my SD card.
Also GoogleMusic saves a lot of space that would normally be taken up by all my music.

Tivo7 said:
Not sure about that but...
What I do when I run out of space is find out what flashable zips I'm currently using and keep those. Then I put the rest of them onto my computer in case I need them later. No need to keep every single zip I've ever used on my SD card.
Also GoogleMusic saves a lot of space that would normally be taken up by all my music.
Click to expand...
Click to collapse
yeah i already use google music and backup .zip's on my PC... however i do a bit of downloading with my phone + usually keep tv shows/movies (720P) on it as i am away from home frequently and use my phone as my source of entertainment. i'm tempted to just go and buy one of those 64GB cards and try it out but if it doesn't work i'd hope the store will allow me to get a refund on the card.

Yes, it is supported.

Tivo7 said:
Also GoogleMusic saves a lot of space that would normally be taken up by all my music.
Click to expand...
Click to collapse
Is Google Music still invite only? I've been looking to try that...

najaboy said:
Yes, it is supported.
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Click to collapse
No, its not supported on the bionic

eraursls1984 said:
No, its not supported on the bionic
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Click to collapse
thanks. us chevy owners gotta stick together. lowered c/k eh?. . I have a lowered astro w/ 5000w sub system. w0rd....

voxigenboy said:
thanks. us chevy owners gotta stick together. lowered c/k eh?. . I have a lowered astro w/ 5000w sub system. w0rd....
Click to expand...
Click to collapse
I have a S-10 (in my Sig) that's currently getting stock floor body dropped and a lowered Colorado as my daily driver.

wanderfowl said:
Is Google Music still invite only? I've been looking to try that...
Click to expand...
Click to collapse
PM me your email address.

eraursls1984 said:
No, its not supported on the bionic
Click to expand...
Click to collapse
The fact remains that the phone supports the SanDisk 64GB microSDXC card. Aside from the numerous anecdotes from users, PCMag has verified that the card is supported in the Bionic, GSII, Xperia Play, and OG Droid.

najaboy said:
The fact remains that the phone supports the SanDisk 64GB microSDXC card. Aside from the numerous anecdotes from users, PCMag has verified that the card is supported in the Bionic, GSII, Xperia Play, and OG Droid.
Click to expand...
Click to collapse
Have a link to the specific card? If not, what speed class is it?

Banggugyangu said:
Have a link to the specific card? If not, what speed class is it?
Click to expand...
Click to collapse
http://www.sandisk.com/products/mobile1-memory-products/sandisk-ultra-microsdxc-card

even if not supported you could create partition and get away

FYI:
http://www.androidnz.net/2011/09/sandisk-64gb-micro-sdxc-cards-confirmed.html

From Wikipedia:
http://en.wikipedia.org/wiki/Secure_Digital#SDHC_and_SDXC_compatibility_issues
"SDHC and SDXC compatibility issues
In the 3.0 specification, the electronic interface of SDHC and SDXC cards is the same. This means that SDHC hosts that have drivers that recognize the newly used capability bits, and have operating system software that understands the exFAT filesystem, are compatible with SDXC cards. The decision to label cards with a capacity greater than 32 GB as SDXC and to use a different filesystem is due solely to the limitations in creating larger filesystems in certain versions of Microsoft Windows.[citation needed] Other operating system kernels, such as Linux, make no distinction between SDHC and SDXC cards, as long as the card contains a compatible filesystem.
SDHC and SDXC cards and hosts have these compatibility issues:
Existing SDHC hosts will only support the SDXC cards at up to UHS104 speeds.[45]
SDXC hosts are backward compatible with SD and SDHC memory cards.[62]
The operating systems that support SDXC, as of 2011, are: Linux (with a proprietary driver for the exFAT filesystem),[63] Microsoft Windows 7, Windows Vista SP1+,[62] Windows XP SP2 or SP3 with KB955704,[64] Windows Server 2008 SP1+, Windows Server 2003 SP2 or SP3 with KB955704, Windows CE 6+, Mac OS X 10.6.5 or later.[65]"
Anyone tried this cheaper Kingmax card? The Sandisk card I'd guess has less room for problems, but it's a lot more money, and I only see them available from Sandisk directly without paying an additional $80 ($299 on Amazon).
Kingmax 64GB MicroSDXC Class 6 Memory Card with Adapters ---- $178
http://www.amazon.com/Kingmax-Micro...2?s=electronics&ie=UTF8&qid=1320439837&sr=1-2
This looks like the same card from the same seller, but unbranded ---- $166
http://www.amazon.com/Komputerbay-M...3?s=electronics&ie=UTF8&qid=1320439837&sr=1-3
64 GB SanDisk Mobile UltraTM microSDXC ---- $219
http://sandisk.com/products/mobile1-memory-products/sandisk-ultra-microsdxc-card

voxigenboy said:
I was wondering if this phone supports micro SDXC cards? it would be nice to pop in a 64GB card. I keep running out of space on a 32GB micro SDHC.
Click to expand...
Click to collapse
I bought a Sandisk Mobile Ultra 64 GB SDXC (class 10, UHS-1) card. Popped it in.. formated it.. and its reporting 63+GB or available storage.
So its working on my bionic

jetguat said:
I bought a Sandisk Mobile Ultra 64 GB SDXC (class 10, UHS-1) card. Popped it in.. formated it.. and its reporting 63+GB or available storage.
So its working on my bionic
Click to expand...
Click to collapse
I have the same card in my bionic, it comes up as 59.46GB available storage

kkt12 said:
I have the same card in my bionic, it comes up as 59.46GB available storage
Click to expand...
Click to collapse
I too am running the card. Can't seem to move apps to sd, but that could just be a Jelly Bean bug though
Sent from my DROID BIONIC using Tapatalk 2

64GB microsdxc not compatible with the Tab

So it seems that the Kingmax 64gb microsdxc card doesn't work with the Tab. Hardly unexpected but hey you never know until you try. It just keeps asking me to format it over and over again.
Oh well, it works fine on my gs2

As far as i know, the tab only support 32GB sdcard.

More specifically, the microsdhc spec supports up to 32gb. Usually when they say a device only supports 32gb it's because it uses this spec so it implies this limit. But some newer devices specifiy microsdhc however they can use more than the 32gb limit. So that was my hope here.

Got it, so is a limitation about the sdcard tec, not a limit of tab hardware...

Well maybe both. Who knows. Maybe it's a good excuse for me to start cooking roms and writing kernels.

Back in the day...
Back in the old days, my old HTC XDA Exec, was not compatible with the new fangled technology of SDHC, and was only able to read SD until some enterprizing folks here at XDA created some updated drivers for it.
Remember the form factor is identical, only the file system (I believe, I may be wrong) of the SD/SDHC/SDXC system changes.
Hopefully someone can get the drivers from a device that does support SDXC to work with the Tabs SDHC reader.

I think your hardware actually has to support the new format, not just the software. My guess is that your old HTC actually supported SDHC at the hardware level, just not at the software level yet. I have a card reader in my desktop as well as one in my laptop that will only read SD, not SDHC, regardless of the size. I am pretty sure SDHC slots will never be able to read SDXC unless the hardware was actually built to support it, but we'll see.

What are you filling your Tab with?
I have been using my tab for over 6 months now and still have not used over 4GB, so the 16GB it has internally was always more than enough. I wonder what all of you are using the space for? Are you loading it with movies & Music or what else?
Any way you can always get the connector to attach a USB storage to your tablet and plugin an extra storage when needed. I mean you can archive your old movies & music to an external USB Drive!

digg1980 said:
I have been using my tab for over 6 months now and still have not used over 4GB, so the 16GB it has internally was always more than enough. I wonder what all of you are using the space for? Are you loading it with movies & Music or what else?
Any way you can always get the connector to attach a USB storage to your tablet and plugin an extra storage when needed. I mean you can archive your old movies & music to an external USB Drive!
Click to expand...
Click to collapse
Yeah, but who the $*%& want's to carry around an external when it could all be internal
Another idea, and I read through the thread and didn't see this mentioned. Would it matter if the card was broken up into two 32GB partitions?
This just made me think of this, does anyone know a partition type for android that would allow file transfer to SD Card over 4 GB? I've always thought that was a FAT limitation (which it is) but hadn't considered other supported format types that might allow for the bigger transfers but also be recognized by Android.
Now that's a burning question!

Most roms are ext4. Try using that. Downside, your windows boxes won't support these out of box

Thanks for the advice about the custom rom. I might give that a shot.
As for why I use this much, this tab is my car stereo so that means lots of music and movies for long trips. It's easy to eat up a lot of space that way.

no0n said:
Most roms are ext4. Try using that. Downside, your windows boxes won't support these out of box
Click to expand...
Click to collapse
Tried it, didn't work because I think Android is expecting it to be FAT32 when it's inserted. I wonder if there is a ROM out that would allow for EXT4 SD cards instead of having to use FAT32? Anyone heard of anything like that?

matt.wolfley said:
Tried it, didn't work because I think Android is expecting it to be FAT32 when it's inserted. I wonder if there is a ROM out that would allow for EXT4 SD cards instead of having to use FAT32? Anyone heard of anything like that?
Click to expand...
Click to collapse
My understanding of this might not be correct but I think fat32 shouldn't be an issue. The 64gb card I got is fat32 and my gs2 seems to use it fine.

matt.wolfley said:
Tried it, didn't work because I think Android is expecting it to be FAT32 when it's inserted. I wonder if there is a ROM out that would allow for EXT4 SD cards instead of having to use FAT32? Anyone heard of anything like that?
Click to expand...
Click to collapse
Also, which custom rom did you use?

cruton said:
My understanding of this might not be correct but I think fat32 shouldn't be an issue. The 64gb card I got is fat32 and my gs2 seems to use it fine.
Click to expand...
Click to collapse
Sorry, I kinda hijacked your thread. I was just thinking if you created two 32 GB partitions to see if it was a capacity limitation. I'm not using a custom rom right now, I was just wondering if there was a rom that would allow you to use ext4 on an as card for large file transfer. 64 GB would do me little good without alleviating the limitations of fat 32.
Sent from my GT-P6210 using Tapatalk

I think TAB support maximum SD card is 32G... or u can try different format, it might be work....

Well after much wrestling with Odin I managed to flash Roderick's ef17 kernel and now the 64gb card works, Sky Wizard be praised!!
I don't know if it was the kernel or if my Tab was messed up. And video seems choppy, I'm not sure if it's a slow card or something else yet.

64GB's on HD7!?

Is it possible? I recently bought an HD7 and am ready to upgrade my memory!
I read a thread about an HD2 running WP7 with a 64GB SDXC Class 6...
Just wondering if it's possible for our awesome phones
Any insight appreciated.
Below is pic from article I read couldn't locate the thread and I'm almost certain posting outside links is a frowned upon...
Cheers!

This would be great anyone else have any info on this

UPDATE: I've found two posts by dorianmuthig on this thread referring to the situation.. Still craving a definitive answer!
First of all - big thanks for the post - I'll actually be donating something to u if it works for me -> now, my main qestion is whether SDXCs are recognized - specifically 64GB sdxc. I'm planning on going all out and purchasing a 64GB SDxc MicroSD from Amazon (the Komputerbay 64GB Micro SDXC MicroSDXC Class 6). Theyre relatively new, definitely less than a year old - so I'm wondering whether that file format will cause performance or other issues against windows Phone 7.5 (mango). Thanks
No, SDXC cards are not supported. SDXC cards will simply not be recognized by the phone, the HTC SPL doesn't support them. You can only use microSD or microSDHC cards in the phones, and due to the fact that there are almost no microSDXC cards on the market as of yet, it can take quite a while for the first phones (not just Windows Phone 7 Series) to support them.
Click to expand...
Click to collapse
I was wondering if 32GB is the biggest you can put into the phone. Maybe I can put in a 64GB Micro SD.
Thoughts?
Yes, 32GB is the largest capacity SD card you can put inside the device, because that's the limit of the SDHC standard. Larger cards are SDXC cards and those aren't supported by the phone. If you put an SDXC card in the phone one of two things will happen: Either the card is smart and pretends to be an SDHC card (see Kingmax cards) capping itself at 32GB (might show as corrupted at first) or it simply won't be recognized. Many Android phones do work with the recently released SanDisk® Mobile Ultra™ microSDXC™ memory cards (http://sandisk.com/products/mobile1-memory-products/sandisk-ultra-microsdxc-card) and odds are that HTC Windows Phones with a recent SPL bootloader do recognize them properly (even though they are UHS-I cards), but I don't know if they'll pass the performance test, nor are they very cheap. If you want to try it, be my guest.
Available card models are: SDSDQY-064G-U46A (Europe) , SDSDQY-064G-A11A (Americas & Pacific)
Click to expand...
Click to collapse
Side-question - What 32GB MicroSD Card are you using? I might be stuck with 32 measly gigs! I really wanted to stick it to all the 64GB rockin' iphone users who laugh at WP7 [but, not my Galaxy Note though!]

Anyone can add the final word to this?
if it's possible, reliable without decreasing its performances, i'll look for sdxc soon!!

I think they take the card and reformat it fat32 so the phone can read 64g card.
Sent from my Desire HD using xda premium

Nothing more about that??

As far as i know there is no support for sdxc that is 64 gb card type..... As for the lower gb's are sdhc which is suported.....
Here some info from wiki might help you understand a little better.....
Host devices that comply with newer versions of the specification provide backward compatibility and accept older SD cards, but older host devices do not recognize newer cards.
A newer card may offer greater capacity than the host device can handle.
A newer card may use a file system the host device cannot navigate.
Use of an SDIO card requires the host device be designed for the input/output functions the card provides.
SDXC
The Secure Digital Extended Capacity (SDXC) format supports cards up to 2 TB (2048 GB), compared to a limit of 32 GB for SDHC cards in the SD 2.0 specification.
http://en.wikipedia.org/wiki/Secure_Digital [link to full sd card history]

RedHazy said:
Is it possible? I recently bought an HD7 and am ready to upgrade my memory!
I read a thread about an HD2 running WP7 with a 64GB SDXC Class 6...
Just wondering if it's possible for our awesome phones
Any insight appreciated.
Below is pic from article I read couldn't locate the thread and I'm almost certain posting outside links is a frowned upon...
Cheers!
Click to expand...
Click to collapse
well there are 2 methods:
using official rom to upgrade the card, i believe only certain cards are supported: [Tutorial] Upgrade your HTC HD7 memory to 32 GB
The other method is using a custom rom called xmod , which claims u can use any type of sdcard : [Tutorial] How to recover SDcard using HD7
It is better if u go with option 2 which is a more viable method, but it requires installing a custom rom.

I'm pretty sure the HD7 can take a 64GB card - the HD2 uses the same software as the HD7, and it supports 64GB SDXC.
Here is the thread that the OP was probably referring to:
http://forum.xda-developers.com/showthread.php?t=1414126

thanks for information gannnn

please post if anyone else have this kind information, it is helpful.

gforcex said:
thanks for information gannnn
Click to expand...
Click to collapse
Just take a jump into the rabbit hole...
and
64GB works for me!!! like a charm... on my HD2, I think HD7 definitely can use it
I'm using MIUI 2.3 btw.

What you talking about man. Come down from android. HTC HD2 isn't exactly same device with HTC HD7.
Sent from my TITAN X310e using Board Express

Confirmed On Surround
Sorry to dig up an old thread, but I can confirm on my surround 64GB SDXC Card is no problem, I am sure it would run on the HD7 runs faster then the stock card, I have past 40 GB of storage see thread
http://forum.xda-developers.com/showthread.php?t=1923674

64GB SDXC works in the Tmobile US HD7 .
Sent from my HD7 using XDA Windows Phone 7 App

If so....
Dr.8820 said:
64GB SDXC works in the Tmobile US HD7 .
Sent from my HD7 using XDA Windows Phone 7 App
Click to expand...
Click to collapse
Please tell the Brand and model, can you show some screenshots, and one from wpbench to see storage speed?
64GB SDXC... that could be a nice thing to do, but some proof is the best way to show that it really works...

I've never used the benchmarks, but it's a SanDisk Class 10 and the number is SDSDQUI-064G-A11. I will post shots later, but I do know some HD7's won't accept 64GB, Tmo one works.
One thing to note: I bought the card from BestBuy, not eBay.
Sent from my HD7 using XDA Windows Phone 7 App

The 64gb SD cards will work, but the device has to have a newer version bootloader 5.12, the 5.11 bootloader might work too!
Dr.8820 what bootloader version is your device on?

Bootloader version is 5.12.2250.0(135916).

Dr.8820 said:
Bootloader version is 5.12.2250.0(135916).
Click to expand...
Click to collapse
Thank you!
It's been confirmed for a while now that the 5.12 bootloader supports 64gb SDXC cards.
I'm curious to know if the 5.11 will support it too...although I don't think it does.
I really wish my 3.1 bootloader would support it, or if someone could figure out how to hack the 5.12 bootloader to install XSPL, custom roms and it would support the 64gb SDXC card....That would be awesome!

UPDATE: 64GB micro SDXC card DOES work in LG Optimus 2x

Hi,
I tested 64GB mircro SDXC in my LG 2x (Modaco rom Gr6 and HP 2x kernel RC12-R) and it DOES NOT work
I was able to format the card to FAT32 in the phone, but when I try to mount it, the phone restarts itself.
If anyone else has different experience, please share.
BTW the card is SDSDQY-064G-U46A
UPDATE:
I managed to fix it. I'm not sure which steps were actually necessary but just to be sure I list them all.
First I tried NicomUA's idea of splitting the patritions in two 32GB. For that I used Paragon Partition Manager 11 Free. And IT WORKED! I made two partitions. I was able to access the first one in the phone, but I could not format or edit the second one neither in the PPM anymore.
So I used SDFormatter 3.1 and reformated the card into its original state with option "Format size adjustment".
Then I checked the partition structure again in PPM. It was exFAT, but with 16MB free space at the beginning.
I formated it to FAT 32 and resized it to 32GB (Now I made only one partition and left the rest of the space unallocated). It worked in the phone.
So I tried to resize the partion to see how far I can go. 32GB worked in my phone. 33GB worked in my phone! And suddenly whole 64GB worked in my phone!!!
I filled the card with movies and music to the max and tested if I can really access the content and YES, I was able to play anything on the card!

bbvidz said:
Hi,
I tested 64GB mircro SDXC in my LG 2x (Modaco rom Gr6 and HP 2x kernel RC12-R) and it DOES NOT work
I was able to format the card to FAT32 in the phone, but when I try to mount it, the phone restarts itself.
If anyone else has different experience, please share.
BTW the card is SDSDQY-064G-U46A
Click to expand...
Click to collapse
May be the limit is 32GB ??
Sent from my Optimus 2X using XDA

Officially, the limit is 32gb. I've seen mods that enable sd cards with higher capacity than the official limit on other phones, but sadly, I don't think there's one yet for the 2x.

yeah, exactly what the other users said on above posts. i also tried it a week ago, in cyanogenmod 9 and it does not detect the sd card (no reboot happened to me, simply doesn't detect it). Let's hope someone release a mod soon for this... 32 gb is nothing... :|

Sesto_Sento said:
yeah, exactly what the other users said on above posts. i also tried it a week ago, in cyanogenmod 9 and it does not detect the sd card (no reboot happened to me, simply doesn't detect it). Let's hope someone release a mod soon for this... 32 gb is nothing... :|
Click to expand...
Click to collapse
Well I thought it was plenty big, until my SD got almost full of videos and nandroid backups

silentmelodies said:
Well I thought it was plenty big, until my SD got almost full of videos and nandroid backups
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Click to collapse
Backups suck, mine are 1.2gb each.
Sent from my Optimus 2X using Tapatalk 2 Beta-2

Sesto_Sento said:
yeah, exactly what the other users said on above posts. i also tried it a week ago, in cyanogenmod 9 and it does not detect the sd card (no reboot happened to me, simply doesn't detect it). Let's hope someone release a mod soon for this... 32 gb is nothing... :|
Click to expand...
Click to collapse
Well I got 1 Gb and it's ok , just kidding.

Try to make one 31Gb(or less then 32Gb) partition on SD card. It can start work.

Not made for SCXC
i dont think making 2 partition will work ,the SD card reader is made for SHHC (high capacity ) not for SDXC (Xtrem capactity ) ,so i thing it's a hardware problem

New info. Read in the first post...

Thanks for the info ! it's a very good thing to know !

Friggin... awesome...!

Guys I have found this Sandisk 64 Gb Micro sdxc....its really cheap
http://www.ebay.in/itm/SANDISK-64GB...E-PRICE-FREE-SHIPPING-ALL-INDIA-/150795837120
Should I buy this and what are the chances that it will work with our O2x
And according to this
http://www.androidnz.net/2011/09/sandisk-64gb-micro-sdxc-cards-confirmed.html
it says it performs even worse than a class 2 sdhc card in random 4k write speed
So, what would you advice should I buy 64 Gb or a 32 Gb Class 10???
Thanx in advance

Oh boy! Gotta try it out.. 64 grams is impressive..

I would prefer the 32gb class 10 for the speed... also 32gb is plenty of room to fill... class 2 is very low speed and could interfere with the recording of videos for example in 1080p... I think...
Cheers

wow that's great news. thnx.

has anyone tried the 64 gb in O2x or any other android for that matter???
i am in a dilemma here whether to buy 32 gb class 10 or the sandisk 64 gb?
Sent from my LG-P990 using xda premium

go for the faster 32 gig. you will be sorry if you get the 64 gig card only to see that it cant read /write your huge files fast enough.

I think m gonna wait for a month as my exams are round the corner..
but i'll definetely buy a sandisk mobile ultra as it has the best benchmarks
B/w Has anyone else got or tried the 64 GB card in optimus 2x??? Plz reply guyz...
Sent from my LG-P990 using xda premium

Anybody besides the OP has managed to do this ? I've tried for weeks, I give up.
Used two cards, both SDXC 64GB, the SanDisk Ultra Mobile and a no-brand one from Amazon.
I used two different Optimus 2X, one running CM7, another running CM9.
The cards can't be formatted in the phones, they are simply not recognized at all.
I formatted them in Linux and Mac OS X, always FAT32, and always made a partition smaller than 32GB first, then tried ExFAT, full or bigger partitions, unallocated space in part or all, anything really. Nothing works.
Edit : the cards are fine, I can use then in Macs, PCs, DSLR and even a Galaxy Note. No problem.
Any ideas ? I'd think it's just not possible and the O2X hardware doesn't support SDXC, just SDHC, that's why I'm asking if anyone else can comment.