In case anyone missed it - 64GB micro SDXC cards WORKING

[AgentMissa]

does this mean it will work with all droids?

[adauth]

Just ordered a 32gig class 6 Sandisk card. Don't really need it at the moment, but got it for a good price.

Sent from my DROID RAZR using Tapatalk

[TropicalSammich]

interesting

[Rred]

FWIW the Atrix works just fine with a 64GB microSDXC card.

You probably will have to let the phone format it, apparently most PCs with "SDHC" slots cannot format it, and third party software to do so also failed here. Only my phone could format it.

Having done that, the PHONE itself it quite happy to use it, and the PC sees it as a 64GB [sic] external drive when the phone is connected to the PC. But a number of phone APPLICATIONS refuse to see or use the 64GB card at all. The native MUSIC app can't see it, but PowerAmp (bless 'em) does. The apps that do see the card may show the usual Android "Out to lunch" syndrome when they first encounter it, apparently it takes a while for them to scan a card that size and check over all the data on it.

So yes, you may have problems, but they aren't from the phone itself. They're from apps that don't know how to count beyond 32,000,000,000,000 Bytes. An SDHC reader is not going to read that card either, unless it is an SDXC reader in disguise.

--Rred

[killerb255]

Originally Posted by Rred

FWIW the Atrix works just fine with a 64GB microSDXC card.

You probably will have to let the phone format it, apparently most PCs with "SDHC" slots cannot format it, and third party software to do so also failed here. Only my phone could format it.

Having done that, the PHONE itself it quite happy to use it, and the PC sees it as a 64GB [sic] external drive when the phone is connected to the PC. But a number of phone APPLICATIONS refuse to see or use the 64GB card at all. The native MUSIC app can't see it, but PowerAmp (bless 'em) does. The apps that do see the card may show the usual Android "Out to lunch" syndrome when they first encounter it, apparently it takes a while for them to scan a card that size and check over all the data on it.

So yes, you may have problems, but they aren't from the phone itself. They're from apps that don't know how to count beyond 32,000,000,000,000 Bytes. An SDHC reader is not going to read that card either, unless it is an SDXC reader in disguise.

--Rred

I could be wrong, but isn't the only difference between an SDHC card and an SDXC card the file system they're formatted with by default?

SDHC = FAT32
SDXC = exFAT

Perhaps your Droid supports exFAT, but applications may have issues with it?

When you tried to format the card using a PC's card reader, was the PC running Windows Vista or 7? If so, were they running the Microsoft Hotfix 976422? If it was running XP, was it running the exFAT hotfix?

Either way, try formatting the card as FAT32 (you may have to use a third party tool called FAT32Format because Windows XP/Vista/7 formatting tools artificially limit FAT32 formatting to 32 GB). Then try the card in your Android and see if the apps that were having problems behave properly. If they do, then it's likely because those apps have problems with exFAT...

[Rred]

"I could be wrong, but isn't the only difference between an SDHC card and an SDXC card the file system they're formatted with by default? "

I can't get straight answers, each vendor points to the other and the standard keepers say SD is not SDHC and neither SD nor SDHC readers may be able to read SDXC cards "period". Even with third party driver support. This appears to be a physical issue of some kind, not just a driver issue.

"SDHC = FAT32
SDXC = exFAT"
Nice concept, again, some SDHC slots simply will not allow the SDXC format. At best, using the third party softwares (several of them) I was able to get Vista to say "formatting...unkown card size" and truncate at 32GB. And then the phone promptly said "unknown or invalid format, foramt card?" and when allowed to do so, all 64GB came back.

"Perhaps your Droid supports exFAT, but applications may have issues with it?"
I really hope--but expect not--Android apps will use the OS to access stored files, and not try to bypass the OS calls to do it directly. That's a DOS-age kludge job and among other things, apps which bypass the OS routines willnever be able to read encrypted or compressed files. If the files on your phone's internal and external SD cards are not encrypted--congratulations, hope there's nothing of value for ID theft or credit cards in there. Encryption is becoming a standard (has been a standard for corporate users) and if the app doesn't use the OS routines...get rid of it ayway.

"When you tried to format the card using a PC's card reader, was the PC running Windows Vista " Tried 'em all. OS was fully patched and up to date, and I tried the third-party tools as well. Doesn't matter, the Ricoh (?) driver for the SDHC card slot is an SDHC device, physically can't handle SDXC they say.

"Either way, try formatting the card as FAT32 (you may have to use a third party tool called FAT32Format" tried it that way too. Bottom line? Let the phone format it, and any apps that can't play, are defective apps that are bypassing the Android OS and going to have other problems.

Oddly enough, Moto's own "Music" can't deal with it. PowerAmp does the Android "Out ot lunch" business (I was they'd put that on the screen background when it happens) for a short while on the first time scan, but at least it handles the card. MANY apps seem to be dead, but are really just chugging through very slowly with a card that size. Kinda the same way your computer will take all night to do a true format on a large hard drive.

Meanwhile...Who needs internet radio?<G> Got my own station now, could probably listen 24x7 for 3 months without hearing a repeat. My parole officer, ergh Yoda, I mean Yoda, tells me that's good for my temper.<G>