Micro SD cards for HD/MAXX HD | Class 10 32GB vs 64GB

Discussion in 'Droid RAZR HD' started by macpro88, Nov 24, 2012.

  1. lovemyram4x4
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    lovemyram4x4 Member

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    I've been using a Sandisk mobile ultra 64gb class 10 in my Razr HD since SS3 came out w/o any issues. I was using my Samsung 32gb class 10 from my OG Razr prior to the 64gb also w/o issue on the Razr HD, I did have issues at times on my OG Razr with writing to both internal & external storage, & had the SD card pop up as blank a couple of times(corrupted partition table).

    Most if not all of the time that I had the 64gb SD card in has been on 4.1. I mainly just use the SD card for storing music, pictures/videos, backups(both ROMs & user apps/data/etc). I copied all the old data from my 32gb to the 64gb SD card using root browser(romtoolbox) with 64gb in the SD card slot & the 32gb in a USB adapter in one the docks USB ports. I've had no issues reading/writing using romtoolbox(all other aspects not just root browser), stock files browser, SS3 or any other apps with the 64gb SD.

    It also shows up in storage manager as expected.
    [​IMG]

    Sent from my DROID RAZR HD using Xparent Red Tapatalk 2
  2. macpro88
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    macpro88 DF Super Moderator

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    Thank you for your input, maybe being on 4.1 will make the card usable and compatible. Maybe I'll flash the leak when I have time to try this out.

    Have you tried using the "Manage Internal Storage" function to move media over that way? Back the card up and try it out and let me know if it moves large amount of data over with no issues.

    This is interesting...
  3. macpro88
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    macpro88 DF Super Moderator

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    Also, just got my Class 10 32GB card and the first thing I tried was using storage manager to move movies over and it worked just fine.

    I hope Jelly Bean likes the 64GB card cause that would be awesome.

    Sent from my DROID RAZR HD
  4. GoCliffGo05
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    GoCliffGo05 Developer Relations Staff Member Premium Member

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    Well at least you know its the gigs not the class... that's good.

    Sent from my DROID RAZR HD using Xparent Cyan Tapatalk 2
  5. macpro88
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    macpro88 DF Super Moderator

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    I think it's the way the 64 is formatted, it's formatted differently than others that apparently Android can't reinforce lol

    Sent from my DROID RAZR HD
  6. lovemyram4x4
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    lovemyram4x4 Member

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    Neither of the 4.1 ROMs I currently have installed on mine have the file transfer options in storage manager, I'd think that it would work since everything else has. On my OG Razr I'd had issues with it at the times other things were also having issues other wise it also worked. I remember on the GB build that came on the OG Razr 95% of the time I tried to use the camera it wouldn't save to my old 8gb class 4 SD card and at some point the internal storage .

    I've heard of peole having issues with SD cards that were formated on another device & then working fine after formatting them with the device they're in.


    Sent from my DROID RAZR HD using Xparent Red Tapatalk 2
  7. jntdroid
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    jntdroid DF Super Moderator Premium Member

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    Galaxy S3... copied a couple gigs of music to my sd (16gb of the model we've been discussing), stuck the sd card back in, voila... half of it's corrupted and in the Lost.DIR folder. Whatever... I'm a little pissed right now, lol...

    Maybe it's coincidence, but I've had Android for years, and literally never had these types of problems until I started using these Ultra Sandisk sd's.

    I unmounted in the settings, ejected on my computer, remounted into phone and rebooted. Man I'm frustrated... I have to be up in 3 hours to catch a flight and wanted to listen to my music in flight.

    Not only did it screw up all the music, my TB folder, "graphics" folder (with hundreds of icons), and a couple other smaller / less important directories... all gone. It also screwed up a few subdirectories I had synced with Dropsync - so what happens? Dropsync starts deleting them from my Dropbox, of course. Not a huge deal as I can restore in Dropbox, but still.

    :angry:
  8. macpro88
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    macpro88 DF Super Moderator

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    Dang dude, that sucks... maybe it is the ultra series... that's a bummer, I'll have to keep an eye on mine, maybe the S3 just doesn't like them, so far my SanDisk Ultra 32GB Class 10 is working great in my HD.
  9. macpro88
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    macpro88 DF Super Moderator

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    Ok, so adding more info here:

    The SDXC (not SDHC) cards, which is what the 64GB card is (the 32GB and smaller are SDHC) uses a default file system called exFAT instead of FAT32. exFAT (extended file allocation table) is file system owned by Microsoft, such as NTFS. Android is currently not licensed for it, or somthing along those lines, I don't know or can't find the exact details - but in order to use a technology, you have to license it from its owner. Well that seems to be changing as according to this article MS is doing that with Sharp in Japan, who is the largest mobile phone manufacturer in Japan: Microsoft Signs up Sharp to License ExFAT File System for Android Smartphones | PCWorld

    While FAT32 supports up to 2TB of space, the SDHC format for micro SD cards is 32GB, so anything larger has to be in the SDXC format which are formatted in the exFAT format. Now, get a load of this, ready?

    SDXC supports up to 2TB! Imagine having a microSD card with 2TB of space! WOW!

    Source: Secure Digital - Wikipedia, the free encyclopedia

    In relation to Android, read this interesting article here: Tuxera Drives exFAT and SDXC Adoption on Mobile Devices | Tuxera
  10. jp233
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    jp233 Member

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    Yeah, I'm wondering if it's related to the SanDisk products period. When I try to return the SanDisk 32GB Class 4 card that just does not work in my OG RAZR, I'm going to get the cheap MicroCenter version instead. They have a CLass 10 32gb card for like $24 so I"ll try that over a SanDisk.

    It will be definitely a great thing if Jelly Bean supports the 64GB cards (and bigger!) if they fix SDXC support and make them 100%. I'd assume Motorola would want to do that prior to releasing JB for OTA updates via Verizon.
  11. macpro88
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    macpro88 DF Super Moderator

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    That's it, I'm done with these class 10 cards, even my 32GB card craps out. Loaded music on it yesterday, wen't to play it, and it quit half way through, all the songs, all of them. Android then reported the card blank, blank! Popped the card in my laptop and everything is still there...

    I'm done, sticking with class 4 cards proven to work on a daily basis...
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  12. GoCliffGo05
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    GoCliffGo05 Developer Relations Staff Member Premium Member

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    Haha that's awful luck man. :(

    Sent from my DROID RAZR HD using Xparent Cyan Tapatalk 2
  13. macpro88
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    macpro88 DF Super Moderator

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    No kidding. So dumb. Done with SanDisk lol

    Sent from my DROID RAZR HD
  14. bohemouth
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    bohemouth New Member

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    I was nervous about buying an sd card online too and radio shack has the 32 gb for 27.00. good luck.
  15. lovemyram4x4
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    lovemyram4x4 Member

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    I was a bit worried about buying my current scandisk SD card w/ all the refurbished ones that kept coming up whenever I searched to see if any 64gb were on sale.

    I'd rather have gotten another Samsung since they have a good rep for flash memory, but the scandisk was on sale & it's worked fine for me so far.

    Sent from my DROID RAZR HD using Xparent Red Tapatalk 2
  16. GoCliffGo05
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    Yea the SanDisk 32gig class 4 work flawlessly.

    Sent from my DROID RAZR HD using Xparent Cyan Tapatalk 2
  17. jp233
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    jp233 Member

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    I had nothing but problems with a SanDisk 32GB Class 4 card, in my regular ol' RAZR. (See my other post in the RAZR Support forum.) Maybe the newer HD versions are a little different in some way.

    Returned it and got a Microcenter branded 32GB card, Class 10. It was long-formatted in Win7 with FAT32 and 16kb allocation chunk. Then erased/formatted in the device. So far, it has worked fine.

    It took quite a while for all the pics/vids to show up in My Gallery (about 3.6GB worth), I assume to make all the thumbnail files. It certainly would drain a lot of battery for the first day or 2 after I loaded all the data, and the stock ICS battery page would show Android OS using 50%+ on the usage even with the phone sitting idle doing nothing else...... had never seen that before (normally the screen uses the most).

    Anyways, I now have about 15GB of music on the new Microcenter card, and I did the "Shuffle All" thing yesterday while working outside for a few hours. It worked fine, but I'm going to keep an eye on it regardless due to all the comments about the Class 10 cards. If anything goes awry, I'll certainly post back.

    I'm going to let this thing run until probably past the holidays, and then burn on 215 and see if I can increase battery life. Maybe even go nuts and root it. Or better yet find a way to upgrade to a Maxx HD without breaking the bank.
  18. jp233
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  19. altus
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    altus New Member

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    jelly bean ota

    Hi

    has anyone tried if the issue is fixed when installing the leaked jelly bean OTA ?

    Thanks,
    Altus
  20. lovemyram4x4
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    lovemyram4x4 Member

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    Can't say if it helps for those with issues since I haven't had any myself on ICS, JB leak, JB OTA, or any of the custom ROMs I've ran on my Razr HD so far(knock on wood).

    Sent from my DROID RAZR HD using Xparent Red Tapatalk 2
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