I just upgraded to a 32 gb memory card and when it prepares the sd card it also deletes some files in some folders that I have. anyone else having a problem with 32 gb cards
Back everything up on your computer and format it.
Sent From My HTC Evo 4G Using Tapa Talk Pro!
what brand card to you have?
Me thinks the OP prolly has a cheap Egay card
it is a sandisk microsd class 4 and I have tried to format it and it still just deletes files for no reason
If its really a class 4 then you might have been duped, as far as i know (as as far as sandisk says) class 2 is the fastest their 32 goes. It could be "deleting" files because the card's been modified to report 32 gigs free space but is actually a card of a smaller size, once you pass the physical limit of the card it still reads as being able to address but there isn't actually that much space on the drive. Try loading only 16 gigs worth of stuff and see if it deletes any files then, and if it still does, go down to 8 and then 4 then 2 and see if it still does the same thing.
A friend bought one off ebay and said that it didn't work either.
I looked at it and after a day of not understanding why it wasn't working, I determined it only really has 2 gigs of real storage space in it.
maybe its fake? download "h2testw" its easy to find on google, and its free. scan the card and you can see the read/write speed and if it has bad sectors and its real capacity
Related
Hello all,
Ive got a spare 16GB Micro SDHC card which i have swapped for the stock 2GB version that came with the Desire, but it is only a Class 2.
Having read that its best to use Class 6, should i shell out £50 for a new one, or will i not notice a difference in class ?
Dunno - I'm using a class 2 16gb card myself and I don't notice much slowdown if at all. I'm surprised these things haven't come down in price after two years... key thing is do you notice any slowdown with apps that access the SD card? like I say, I haven't thus far...
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk
i read somwhere that class 4 is enough coz the phones do not support hihger speeds. class 6 will help you if you will take card to the card reader straight to the computer... it think
hot-fuzz said:
... Having read that its best to use Class 6 ...
Click to expand...
Click to collapse
Where have you read that, please?
tomeeq12 said:
i read somwhere that class 4 is enough coz the phones do not support hihger speeds. class 6 will help you if you will take card to the card reader straight to the computer... it think
Click to expand...
Click to collapse
Thats what i ......... think. Im sure it only matters if its connected to the PC, and in that case i dont care.
I read it on another forum that i wont link too
Class 6 are almost double the price of Class 2.
You don't NEED to get one, I did use a Class 2 card for a few days and didn't have any problems.
Personally I am using a Class 6 now, as I regularly transfer a lot of big media files onto the card, so the extra speed is worth it for me.
If you don't fancy forking out though, you don't have to.
I totally agree, My desire came with a 4gb sandisk class memory card which I initially assumed was class 4 until I took the card out yesterday...connecting the desire to my pc and switching to usb drive mode, i am able to transfer my movies etc to the memory at +/- 8Meg per sec which is more than adequate enough for me...I was about to get a 16gb one but was thinking of getting the class 6 one until i discovered the one I currently have is class 2, so I just made up my mind and went for a class 2 16gb, saved me money....
They only refer to the write speed of the card, i came from a 8gb class 6 and now have a 16gb class 2 and notice no difference, only difference is the write speed from pc to card.
Even though i got a class 2 i still see 4-6mb/s so happy enough with that.
I have a class 10 16Gb card in phone. Read and write speeds seem to be limited to around 8Mb per second (copying uncompressed music). Using an adapter, the computer is able to copy at 14Mb+ using the same card.
They just seem a big outlay for nothing to me, lets face it the only big write time is when you transfer everything across from your previous card once the stuff is on there the write times really won't be much of a problem.
The main reason you will find people suggesting class 6 and above SD cards is due to "Apps to SD". For the Newbies "Apps to SD" or A2SD is a modification that has been done on most android phones (though not the desire at time of writing) which allows the Apps you download to be stored on the SD card rather than the phones limited internal memory. I am not sure if it makes a huge difference to the faster processor phones, but in the G1 days it was noticeable. For just moving music and pictures about it isn't really important to have a faster card and we may have to wait a while for A2SD anyway. I will pop over to the N1 forum and see if they can shed some light on this.
Anyone using a microSD 16GB Class 4, if so are they any good? I'm looking at buying one for the Desire. Also where's the best place to get a deal on one of these card?
Is this the right forum?
I own a htc tilt 2, but I don't think the phone is the issue.
I've used a sandisk 16gig micro sdhc card and a
8gig micro sdhc card
Everytime i copy files above 2gigs, the files above the 2gigs are corrupted...weird symbols, huge file sizes...
I've used both active sync and a usb sd card reader to copy files.
I'm looking for software to partition the card but I'm not finding any and I'm not really good at this kinda thing.
Anyone have a suggestion or reason to why this is happening?
Thanks!
the problem is your card is a fake chinese product there is nothin you can do
Yeah I agree with the first responder. It looks as if you got a hacked card that is really only a 2 GB card. It won't work past the 2 GB limit.
markanthony123 said:
Yeah I agree with the first responder. It looks as if you got a hacked card that is really only a 2 GB card. It won't work past the 2 GB limit.
Click to expand...
Click to collapse
I think it's because the filesystem of the card is FAT and not FAT32 (which should be able to handle files up to 4GB)
i take it this is happening with both cards?
my fiancee had the same problem with an 8GB card,
all i did was format to FAT32 and it seemed to work ok, had no issues since
So I recently ordered a 16 GB micro sd card off Amazon since I've been using my MT4G for music and leaving my ipod at home, and wanted to bump up my capacity. Anyway, it's a Patriot Class 4 card, and I'm having some trouble. I inserted it into the phone, and selected 'format sd card' from settings, did it, but when I mounted sd card via usb to transfer files, it was going SO SLOW. Like, 50 minutes to transfer 200 MB or so. So...my question is, is there something I'm supposed to have done and didn't do? Or is it a bad card, or what? Because my 8 GB stock card was only class 4, and was MUCH faster.
Thanks for any insight!
Try using windows to format it using the default allocation size. I have seen some talk in the "32gig class 10" thread that doing this really sped up the transfer speeds of the cards over what you get when letting the phone format it.
Good luck.
rrrjr said:
Try using windows to format it using the default allocation size. I have seen some talk in the "32gig class 10" thread that doing this really sped up the transfer speeds of the cards over what you get when letting the phone format it.
Good luck.
Click to expand...
Click to collapse
Thanks for the help. I'm really unsure about what to do, been searching and can't really figure out if the card is bad or if I haven't formatted it correctly. Unfortunately, I'm on a macbook, so don't use Windows. Usually, there is a mac equivalent for anything windows can do, so I'll see what my options are. It's just driving me crazy, because it'll take DAYS to transfer all my music lol. Not sure why no one else has jumped in to help me out. Either no one knows anything about it, or it's such an obvious answer that I'm embarrassing myself. Either way, I'd love to hear which it is so I know how f-ed I am.
sunsean said:
Thanks for the help. I'm really unsure about what to do, been searching and can't really figure out if the card is bad or if I haven't formatted it correctly. Unfortunately, I'm on a macbook, so don't use Windows. Usually, there is a mac equivalent for anything windows can do, so I'll see what my options are. It's just driving me crazy, because it'll take DAYS to transfer all my music lol. Not sure why no one else has jumped in to help me out. Either no one knows anything about it, or it's such an obvious answer that I'm embarrassing myself. Either way, I'd love to hear which it is so I know how f-ed I am.
Click to expand...
Click to collapse
try doing a full format instead of a quick format with windows.
http://www.amazon.com/gp/product/B00413PF6G
I ordered that card last week and had the same issue you had. Max of like 2mbs transfer whether I mounted it through the MyTouch 4G USB, Included adapter or my USB card reader. I tried the panasonic formatting tool and half the time it would kill my card reader or just fail. Messed with it for like 4 days and couldn't find anything that helped. Must be a incompatibility, It was returned and I just received a Transcend 16gb Class 4. Transfer average 4-6mb depending if it's a large file or tons of smaller files.
sunsean said:
So I recently ordered a 16 GB micro sd card off Amazon since I've been using my MT4G for music and leaving my ipod at home, and wanted to bump up my capacity. Anyway, it's a Patriot Class 4 card, and I'm having some trouble. I inserted it into the phone, and selected 'format sd card' from settings, did it, but when I mounted sd card via usb to transfer files, it was going SO SLOW. Like, 50 minutes to transfer 200 MB or so. So...my question is, is there something I'm supposed to have done and didn't do? Or is it a bad card, or what? Because my 8 GB stock card was only class 4, and was MUCH faster.
Thanks for any insight!
Click to expand...
Click to collapse
I've done alot of testing for sd cards and android because i had similar issues with my patriot SD card and I've found that a 32K cluster sizes gives great speeds. Only time you really need smaller is if u are using a actual hard disk or if your average file size are around 3-10 Kb but with mp3 and most other files being around 3-10Mb you lose alot of and speed as a result of having smaller clusters.
Now say u use maverick maps and have cached over several million tiles all of which are 1kb each then use a smaller cluster size to save space or those millions of 1k tiles could fill a entire 8 gig card as opposed to actual size of 700Mb but it will take a horrendously long time to transfer to those card. so its a trade off.
So bottom line use a 32k allocation table. It will give you good optimization of space and speed.
I have also found that formatting the sd card with the phone rather than with my mac also causes slow transfer rates so I format all my sd cards on my mac (or pc) before putting them in my phone. Transfer rates are much quicker that way.
I have Kingston 16gb class 10 and I would only average 1-2mb/s when copying files over.
I reformatted in via Windows to a few different cluster sizes and did some testing with my phone.
For my usage I went with a 64k cluster size. My copy speeds to the card average 13mb/s. I don't really store small files on the card so I'm not worried about excessive space use right now.
Hi Guys,
I am having a problem loading some of the new 3.0 roms that are out now...and I was wondering if this might be the issue.
I have the stock SDCARD that came with my evo4g (8gb)...but when I insert it into a card holder in my PC, it only comes up as 5.67gb total. Even when I try to format it...it only says 5.67gb.
Is that normal?
Thanks!
The biggest problem with our SD cards is the type of card it is. our "class" is really low. they SHOULD have put real cards in our phones like class 10. I personally did test both on read and write speeds while in the phone and the class 10 was MUCH faster than the stock. get a 16GB.. btw, it'll never reach 8gb, or 16gb. it'll always be less.
runcool said:
The biggest problem with our SD cards is the type of card it is. our "class" is really low. they SHOULD have put real cards in our phones like class 10. I personally did test both on read and write speeds while in the phone and the class 10 was MUCH faster than the stock. get a 16GB.. btw, it'll never reach 8gb, or 16gb. it'll always be less.
Click to expand...
Click to collapse
Yes, I understand all that...class, etc...and I know that after formatting it will not be 8gb due to 1024 equals 1gb...but 8gb down to 5.67gb? That seems a little low right?
no. because as soon as you format it and put it back onto the evo... it re-adds its stuff to the sdcard. and also.... the math isn't right. you forgot about the partition table which takes even more away. Depending on how you format it if it is fat32, NTFS, WinFS*I REALLY WISH MICROSOFT WOULD DO THIS! LOL* well, the size of the disk will change. well, I mean the amount you can use. oh and also the unit size can change it.
Do you have an ext partition on the card (for apps2sd)? That's the most likely place the extra space would go. The space you're seeing reported in Windows is the FAT32 partition.
If you don't think you have one, have you ever had one? If you thought you had gotten rid of it, it's also possible you didn't really get rid of it, depending on what you did. Just reformatting it in Windows won't get rid of it.
An 8GB (marketing) card will normally have about 7.45 GB of actual space. So you're missing roughly 1.75 GB.
I have a Sandisk 64Gb MicroSDHC card. I've been using it for sometime on Android and. I've used Android to format it but never to partition it. I've also used Android to wipe data on the card. I've formatted it varous times again on Ubuntu.
The card was working fine but today, I decided to format and clear all the data on it. Much to my dismay, after when plugging in the card and formatting it, Windows read it to have only 27.8 GB space even though it was empty. Ubuntu also showed 27.48 GB only.
I've not much problems with the card on Android and Ubuntu but today, this serious problem occured. Just how does a 64GB card reduce to 27.48GB? I've formatted the card to FAT32 and EXT4 multiple times to no avail with GParted.
Previously, some time ago, I've formatted the card to FAT32 and because the computer, I forgot if it was Windows or Ubuntu and because the computer read it as having 30GB space, named the card 32GB Volume or something like that (The name has long since changed to one of my choosing). However, Ubuntu still read the card as having 64GB of space and filling it up with more than 30GB worked just fine.
What happened? How do I resolve this? I need the card to work on both Ubuntu and Android.
This is my card. http://www.amazon.com/dp/B005V7WIA2 Based on reviews alone, it seems to be very good quality. I've used the card on Ubuntu, and Motorola Defy (Android), and the Motorola Xoom (Also Android). Both Android and Ubuntu have worked with the card just fine except for one thing Occasionally, when copying files to or from the card, I get an error message. Sorry but I don't recall what the message said.
Also, sorry for this mess of a post. I'll try to reword it once I have the time or overcome my exaggerated grief for this unexpected tragedy.
j814wong said:
Just how does a 64GB card reduce to 27.48GB?
Click to expand...
Click to collapse
Use h2testw and check if it might be fake (i.e. actually 32 GB, but re-programmed and re-labeled to say 64 GB).
I got delivery of a new 32 GB thumb drive an hour back and am running the test as I type this. Makes sense to test out all new flash memory purchases as soon as you get them. Lots of fakes going around.
If at all yours turns out to be fake, then you're lucky you got a 32 GB, and not a 2 GB! Hope yours is not such a case!
alfavictor said:
Use h2testw and check if it might be fake (i.e. actually 32 GB, but re-programmed and re-labeled to say 64 GB).
I got delivery of a new 32 GB thumb drive an hour back and am running the test as I type this. Makes sense to test out all new flash memory purchases as soon as you get them. Lots of fakes going around.
If at all yours turns out to be fake, then you're lucky you got a 32 GB, and not a 2 GB! Hope yours is not such a case!
Click to expand...
Click to collapse
I bought it from Amazon not Amazon Used or Amazon Marketplace. Oh well, I'll still check it out with that program you suggested.
uhm.. interesting... now i understand...