Related
Hi, I recently bought a 2GB MiniSD card for my Treo750v. When I put it into the system it worked fine, I installed some programs and put some music on. Then I left the phone alone for a while and the automatic keylock came on. When I returned to the phone and activated it from keylock the sound that is played when removing the card was heard and it reported that there was no card installed when there clearly was. To return the card to working order i had to remove and re-insert it. After that it was fine until keylock came back on and the same thing happened again!
Anyone got any ideas on why this is doing what it is doing!
Point to note, the card works perfectly in an HP device running WM5 and my Digital Camera!
I am starting to think this is a "problem" with the Treo because mine does the same with a 512mb card. Sometimes it wont be "seen" by the PDA but not a problem when put in my other pda.......
Jim
I get the same thing, also with a 2 gig card. But it happens only every other day or so. Still very annoying. Have no clue why this is happening.
I had the same trouble, too. But the trouble has already disappeared by replacement of 2GB mini SD to 1GB mini SD.
Remainning problem is that Spb pocket plus still cannot get application icons on storage card.
Went to a Vodafone store today and told them about the issue. They said it is a known issue and was a problem on a couple devices. They said if I would bring the box and invoice, they would exchange the device. Will do that in the next few days. Hope that solves it.
I have the same problem with my 512mb card and my 2Gig card. But I am in the U.S. and cant bring it in to Vodafone. Does anyone know what else can be done?
I should've did some homework and checked this forum before jumping on my 2GB which I bought 3 days ago. 'doh... I have the same issue here... except in the midst of playing with it, inserting and removing etc... all the data got corrupted. I have to figure out how to reformat the whole card.
Hopefully, there's a software fix later.
Hey
Thanks guys n gals for ur help!
magxs I might have to do the same!!!
Oh bum, silly silly smartphones! I just want something that works!
I've also been having problems with my Treo 750v and the miniSD card (2GB SanDisk Ultra II).
When I insert the card, the Treo sees it and can run programs that are installed on it. When I return the Treo after it has been off for a while the card is no longer recognised and the memory manager claims that no storage card is installed. At this point all I can do is either take the card out and reinsert it, or otherwise to a soft reset. The time it takes for the Treo to loose its connection to the card varies; sometimes I can turn it on after a few minutes and the card is gone, sometimes it still works after a couple of hours.
When I came across this discussion yesterday, I phoned up Vodafone and reported my issue. According to the customer service rep, this is not on their list of known issues but he agreed to an exchange anyway. I'll get the new device today. I hope that'll fix it, but by now have my doubts.
Someone else suggested formatting the SD card, citing issues with FAT16 vs FAT32. I might try that if the new Treo still suffers the same issue.
In another thread on this topic, someone reported that such an issue was observed on some other PPC device and was fixed by a ROM upgrade. I emailed Palm about it. Palm eventually got back to me today saying:
This may occur only with cards that are not Palm branded. If possible please try to use a Palm card to test it.
Click to expand...
Click to collapse
Either that's a lame excuse, or they're trying to force people into buying their overpriced own branded accessories by making their hardware incompatible with the industry standard. Unless SanDisk don't know how to make miniSD cards...
I guess my next step - after the reformatting - will be to throw £60 at a Palm branded storage card; I don't expect that would work any better than my current card, but at least then Palm can't argue that I'm using "unsupported hardware".
I exchanged my Treo yesterday at a different Vodafone store. The people there didn't know anything about SD card issues either, but they exchanged it anyway. Have been running the new device for about 24 hrs now and no issues, yet. But even on the first device, the problems only started later and even then it wasn't an everyday occurrence. So, I will need to watch it a bit longer.
new rom
Have you tried loading the Cingular ROM and see if it fixes this problem?
After two full days with my new Treo, the SD card was lost again over night. So, it doesn't seem to be an issue that just a few devices were affected by. Too bad....
I didn't try any other ROMs yet.
I have the Cingular ROM, and have the same exact problem.
hi,
i am new to this board and hope you dont mind my bad english. i am from germany and proud owner of a treo 750v
and i tell you what: i am so glad i am not alone with the storage card problem.
it was nearly making me mad.
now i know that there are a lot of other people with the same problem. that may not solve it but gives me a better feeling an hope for an update which solves that.
PS: i use a 1gb sandisk
Well It's working
I bought another MiniSD card the other day, a 512Mb Kingston one, and so far so good, it works well (about 5 days now) and has not been "lost" so far! Not sure if it's the size of card or the make or what but I will keep investigating this!
Hope you resolve your issues!!
A
What kind of card did you have issues with?
I get the feeling the this might be related to specific cards. To find out: please everybody state which card you are using and if you have problems.
I'm using Sandisk Ultra II 2GB and it's dropping out.
Thanks
magxs said:
What kind of card did you have issues with?
I get the feeling the this might be related to specific cards. To find out: please everybody state which card you are using and if you have problems.
I'm using Sandisk Ultra II 2GB and it's dropping out.
Thanks
Click to expand...
Click to collapse
i am using sandisc (normal) 1 gb and have the problems.
Card Type
Mine was a generic 2GB card bought on EBAY but the one that is working now is a Kingston 512MB card. The Generic 2GB works perfectly in my Digital camera. There are no Identifying marks on the 2GB card sadly so Cannot say for sure who makes it!
I'm also using a SanDisk Ultra II 2GB, and it's getting dropped regularly.
Sounds like SanDisk is the one to blame.
But would be good to have more reports before we all go out buying new cards. Keep em coming...
Hello !
Someone got the same problem ?
My
--
Raph100,
1.90.401.1 WWE,
1.02.25.19,
52.33.25.17W
HTC Touch Pro T7272
--
corrupted my 8GB Sandisk Ultra II after 3 days of use.
The card could be read INSIDE of my Raphael but not on my PC with different card readers. This would be a minor problem but my Raphael also destroyed randomly files on the card too.
I thought the Micro SDHC Card was defective and send it back.
Now I own a Sandisk 16GB Card and it got also courrupted in like 2 days of use.
Some file from my *Notes* was thrashed and other files followed.
Raphael will try to open the file and then stay busy. After like 20 seconds a message containing "There is not enough memory " pop up... (150MB free ram should be enough to open a 2 kb Notes-file )
Wierd thing -> My *old* Sandisk 6 GB MicroSDHC Card I own for more than half a year now works flawlessly... (Till yet )
Someone here got the same experiences ?
Someone got some advice for me ?
I read something about updated SD sdrivers from member Tucan which he cooked into a german stock rom. Are they any good for me ?
Is there a Rom which should solve my problems ?
Help will be really appreciated !!
im sorry but the new memory you have must be fake, that explains why it works with your old mem, and why after sending it back, the same place sent you another fake.
Oh lord here we go, I just ordered my 8gb MicroSDHC card from newegg since the Fuze will be out soon I hope this isn't a common problem.
I corrupted my 8GB once, but by my own fault. I was in the middle of a transfer and was connected as a hard drive, not through activesync, and hit the power button which disconnected it from the computer. I hooked it up as a hard drive again, went into windows and reformatted the MicroSD... No issues from then on.
ice_coffee said:
im sorry but the new memory you have must be fake, that explains why it works with your old mem, and why after sending it back, the same place sent you another fake.
Click to expand...
Click to collapse
I ordered both cards from completly different places, so that is unlikely.
They did work normaly (some days) even on my PC, so I guess it is my Raph which corrupted them
Black93300ZX said:
I corrupted my 8GB once, but by my own fault. I was in the middle of a transfer and was connected as a hard drive, not through activesync, and hit the power button which disconnected it from the computer. I hooked it up as a hard drive again, went into windows and reformatted the MicroSD... No issues from then on.
Click to expand...
Click to collapse
I´m always *releasing* my harddrives/cards (on my PC) with the icon in the lower right corner to be save from what you experienced.
Oh man. I have the 16GB Card sitting here and cant use it... I will try it in my old XDA Trion (aka Hermes) for the next days ...
Anyway thanks for your replys !
Someone else has some thoughts about the problem ?
Maybe it has something to do with all the powersaving *features* beeing enabled through -Advanced Config 3.2- and -Diamond Tweak- ?
Well I'm using the same rom as you and was using an 8gb Sandisk card until I got a 16gb Sandisk card and both work flawlessly I'm afraid. I have also applied the power saving tweaks you mention with no ill effect.
using 8gb for about a month now, no problems at all.
Oh, I should mention I've heard many people talk about how there were a lot of Tilts that corrupted MicroSD cards. It was a flaw from the factory, apparently affected a number of them. I wouldn't be surprised of HTC saw some of the same issues with the Fuze, knowing all of the issues they've had already.
My 8gb card works just fine.
For reference, I'm using an A-DATA Class-6 8gb microSD purchased from NewEgg. Cheap, fast, reliable, perfect.
16gb bog standard San Disk Micro SD is working fine at the moment.
Formatted using Panasonic's SD Formatter as I corrupted it before I even put it in the Pro.
my 8GB works fine too
Maybe if everybody posts the brand name of their cards we can determine if this has something to do with the issues.
I remember with my Hermes I had to get a specific brand and produced from a certain plant to not have any issues. I still have my Kingston Micro SD from the Japan plant with no issues.
Using 8Gb and 16Gb of Sandisk with no probs on my Touch Pro.
Hi,
I may be barking up the wrong tree here but are you sure you have not enabled the Encryption setting under Settings. This will encrypt the storage card so it can only be read from the phone. Removing the card and placing in a PC or Laptop would show up as corrupted.
I selected it by mistake once and it corrupted my folder tree and showed garbage.
Not saying this is what is up but is worth looking at.
Personally I have a 16GB SanDisk card in my Touch Pro and it been OK. Been running for about 3 weeks now.
John
maybe the cardreaders from youre PC are not compatible with sdhc.
This is redundand and it may be opinion but im looking into buying a class 6 8gig. Is adata reliable? What company is the best in your opinions for what im looking for. Fastest?
sdlopez83 said:
This is redundand and it may be opinion but im looking into buying a class 6 8gig. Is adata reliable? What company is the best in your opinions for what im looking for. Fastest?
Click to expand...
Click to collapse
Sandisk. Always. Forever. For my memory cards at least
FYI...
I put a 16Gb Sandisk in my TP on monday (5 days ago)... not a single problem with it and no corrupted files either.
I was previously using my 4Gb Sandisk card from my old Kaiser... which also worked perfectly fine.
Had a Sandisk 8GB card in mine, no problems. Now have a 16GB Sandisk, no problems.
For me I'll buy Sandisk, and only Sandisk, for my memory cards.
I have the very chip you described in my kaiser (class 6 a-data 8gb) runs without a problem. I've never really had much problems with microsd chips but I gotta admit I got a little worries when this thread poped up not so much about the chip but the phone itself, I've never had a bad chip in my life bought about 20 or so thus far, the a-data does well in terms of speed nothing to be excisted about but for it's class and size it holds its own.
Hello Everyone,
I recently bought a 16gb sdcard for my sensation with CM7 rom. Everything has been working great (cyanogenmod is awesome!) and then i began randomly getting the sd card error message. My phone randomly unmounts the sd card and of course when that happens my phone is pretty much useless because all of my apps are on the sd card. I was so excited about the 16gb chip but now I'm starting to think that I should just go back to the 8gb and call it a day...... any suggestions?
Firstly, it's unlikely to be the ROM. Lots of people use CM7.
If it were me I would first of all pop the back and eject, then reinstall the SDCard, as it may not be seated correctly.
If that didn't resolve the issue, I would inspect the contacts on both the card and in the socket, to make sure there wasn't an obvious bit of dirt or something which might be causing an intermittent contact.
Replacing the 8GB and running with that for a while might be a good test. If it runs fine with the 8GB, then likely the new card is faulty and perhaps you should take it back for a replacement.
Finally, I would always recommend using a good brand of SDCard. If you are investing in a nice phone (or a contract which comes with a nice phone) then you should also pay the few extra bucks for decent quality accessories.
my htc hd7 driving me crazy and i tried many roms but still the same problem after 5 or 7 days of flashing the new rom my phone suddenly do a hard reset i lost many pictures and many other because of this can any one help me plz
Sounds very much like a hardware bug. I'd get the phone replaced under warranty if I were you.
Are you flashing stock ROMs or custom ones? The custom ones may be less stable than the stock, but you shouldn't be having the problem you describe anyhow. Does anybody else have access to the phone? It's entirely possible for kids to accidentlaly hard-reset the phone; it takes a little effort but less than you might think.
i flash custom roms and no one touch the except me and my phone warranty expired
It's entirely possible that the custom ROMs are buggy, and even slightly possible that they damaged the phone somehow (not likely, but possible). Have you tried flashing a stock ROM and seeing if the problem continues? Be aware that it will overwrite HSPL if you do so, but it's easier to re-unlock the bootloader than handle constant hard resets.
If that doesn't fix the problem, you're probably SOL. I've not heard of anybody else experiencing what you describe unless it was a hardware problem. I guess you could try opening up the phone (it's tricky but totally possible, especially if you don't mind voiding your already-expired warranty) and re-seating the internal microSD card.
i opened the phone and re-seated the sd card now i must wait 5 days
if it reset again i will try to flash it with the stock rom
I hope that helps! Sorry I can't offer more advice (except to search for anybody else who has had this problem). My HD7 has stayed perfectly stable without a single unexpected hard-reset, so I can't help you from experience.
Have you changed the stock sd card to a higher capacity/different sd card at some point?
This could be the cause, if the card is not 100% compatible/fast enough etc. After 5-7 days of use the memory card could reach a point where it has certaint level of data and the problems start.
EDIT: Asking because you so nonchalantly told you opened the phone and re-seated the sd card, kind of gave me the impression you did it before?
Loco5150 said:
Have you changed the stock sd card to a higher capacity/different sd card at some point?
This could be the cause, if the card is not 100% compatible/fast enough etc. After 5-7 days of use the memory card could reach a point where it has certaint level of data and the problems start.
EDIT: Asking because you so nonchalantly told you opened the phone and re-seated the sd card, kind of gave me the impression you did it before?
Click to expand...
Click to collapse
hhh yes i did it before to change the sd card from 16gb to 8gb class 2
i noticed that if i put the phone in my pocket it became too warm from the down back side maybe this is the cause of the problem
and it get very hot if i put it in charge too
The class 2 card is too slow, stock is class 4. Putting too slow card in the phone can cause all sorts of problems.
I changed on my HTC 7 Pro from SanDisk 8gb class 4 card to SanDisk16 class 2. After 4 days or so it started to cause resets and after little more time programs wouldnt run anymore etc.
Now I ordered a Samsung 32gb class 10 that people all seem to have good results. It was 32eur delivered. The phone is wayyyyyyyyyyyyyy faster and no more problems at all. I installed it a week ago.
What I read its not only the class either, some cards seem to have compatibility issues also. This Samsung card seems to be working for everyone, but there are more choises.
The "class" rating on SD cards is a rough measure of their sequential read and write speeds. This is important for things like cameras, which need to rapidly write a lot of data in a smooth sequence. The phone needs a certain amount of this, but not much - Class 4 cards are about as slow as you can buy today, and will do just fine. What the phone does need is extremely fast random access. Many SD cards, especially "high-speed" ones, actually perform relatively poorly in this regard. It's generally not tested for, either, so even within the same brand of card individual chips may vary.
Im sure whats above is correct, I dont know much about the tech side of this.
However Im pretty sure the OP's problems are due to the sd change.
The thing for me and what Ive read for others too, is that the problems do not start right after change of the card, everything looks normal for a while.
yes every looked normal in the first week but before this class 2 8gb sandisk card i tried a normal card calss 4 16gb and it didn't work
Reliable 32gb Samsung SD card ?
@Loco5150
Now I ordered a Samsung 32gb class 10 that people all seem to have good results. It was 32eur delivered. The phone is wayyyyyyyyyyyyyy faster and no more problems at all. I installed it a week ago.
What I read its not only the class either, some cards seem to have compatibility issues also. This Samsung card seems to be working for everyone, but there are more choises.[/QUOTE]
I don't suppose you have a link for this Samsung card do you ? I'm a bit wary of buying SD cards due to all the problems with compatibility and fakes.
Thanks
Garrickus
Well I know about the fake cards, specially on eBay. I bought from eBay , German seller, member since 99 and sells a lot of memory.
The seller seems to have raised the price for the card little since I purchased, I paid 27,90+shipping. (he had +10 sold at that point, now 40)
Here is the link for that :http://www.ebay.de/itm/180835219519.
EDIT: The price seems to be at the right ballpark for this card. I saw similar price (discounted) for the same card on some store link posted here at XDA. It was some of the topics regarding memory upgrade on WP7 device (most likely at HD7 or HTC 7 Pro section).
Loco5150 said:
Well I know about the fake cards, specially on eBay. I bought from eBay , German seller, member since 99 and sells a lot of memory.
The seller seems to have raised the price for the card little since I purchased, I paid 27,90+shipping. (he had +10 sold at that point, now 40)
Here is the link for that :http://www.ebay.de/itm/180835219519.
EDIT: The price seems to be at the right ballpark for this card. I saw similar price (discounted) for the same card on some store link posted here at XDA. It was some of the topics regarding memory upgrade on WP7 device (most likely at HD7 or HTC 7 Pro section).
Click to expand...
Click to collapse
Thanks.
I have to hard reset my phone this weekend due to a bizarre problem with Internet Explorer on my phone, if that doesn't fix it, I may swop out the sd card and flash my first Rom
Do keep us posted on your new card.
Garrickus
Im using Ansar's lates rom btw. When I started to have problems with the old card I didnt flash a new rom, just changed the card and did a hard reset... Tomorrow I think it will be 2 weeks with this new card, no weird behaviour at all.
i changed my memory to sandisk 16 gb calss 4 and now my phone reset and restart many times a day omg i can't find the samsung calss 10 in my town and i can't buy from ebay
There are other cards that work too. You can find more info about cards here: http://forum.xda-developers.com/showthread.php?t=883582
Read and surely you can find a card you can buy from your city.
where i can find the memory card references?
I was going to post this in response to a couple of people in the development sections but my post count is too low so I'll post it here instead.
The SD slot in this phone seems to have an issue with corrupting SD cards, I've had to format both my old and new SD card multiple times with this phone as it becomes unusable every few days. I'm not versed enough in hardware to know if this is a bad connection between the SD slot and the "motherboard" of the phone. I've seen a number of people have their SD cards go bad with this phone and I assume that means we had a manufacturing issue. It would be really cool if a hardware hacker experiencing this issue could take a look inside and confirm whether or not the hardware is connected correctly.
Well, perhaps there's a high number of bad readers....
I've had the same card in my Q since the day I got it (mid-September), no issues.
Mine wouldn't read the day I swapped up from My Epic 4g Touch to This phone, So I popped in an sd reader backed up my data then let the Moto format it, no issues sence
Curious to know what class of card you guys are running. I've been running a Patriot class 10 but my previous was a class 4 without branding that came with my old Transform.
I'm really hoping that I just had my old SD card die at a bad time and that my newer SD card was just sent bad. Today I couldn't get the card to read from the SD slot in my computer, and it would not be cool if my phone caused it to become that way.
Solust said:
Curious to know what class of card you guys are running. I've been running a Patriot class 10 but my previous was a class 4 without branding that came with my old Transform.
I'm really hoping that I just had my old SD card die at a bad time and that my newer SD card was just sent bad. Today I couldn't get the card to read from the SD slot in my computer, and it would not be cool if my phone caused it to become that way.
Click to expand...
Click to collapse
Class 10 Maxell
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2074251
No issues here. I tossed the crappy class 2/4 that shipped with my Epic long ago.
Well I found an extra class 4, 2 GB SD card lying around the house when I was cleaning today. It may be that the local shipment of phones was bad, so if this SD card goes on me then I'll try exchanging the phone in another town just to be safe.
Just out of curiosity does anyone know whether Sprint orders enough phones for replacements with their original shipments? I'm not from a very large town so I'd imagine they would keep replacing with phones from the same batch.
I've got a Samsung 32GB class 10 mSD.
Nearly everytime I reboot my Photon Q it says "SD Card is damaged".
Go into settings, Mount SD Card once or twice and it works.
I've read, that other Android Devices have also problems with that size of SD Cards. (Google)
I had also problem in recovery restoring a backup, the restore process didn't went correctly
(said that everything was fine), had to use my 2GB mSD, which worked nicely and the backup also.
So I think it's an android/kernel issue than a hardware issue.
I have noticed that I get the corrupt sdcard error everytime I try to use the "mass storage" or "media device" setting with Windows.
I use Ubuntu 99% of the time and leave it connected in "camera" mode, have never had that pop up like that...
I usually just use ADB to copy everything anyway so I do not miss the "mass storage" mode at all.
Just had a 16gb class 10 microcenter branded card go belly up on me. Phone just all of a sudden said it was removed and now nothing seems to recognize the thing. The mount option is completely greyed out, and does the same on my note 10.1 if i pop it in there.
When your cards have gone did they completely disappear and refuse to read?
Sent from my XT897 using xda app-developers app
I wonder if it's the c10 cards...
You guys really shouldn't be using high class cards in a phone - there's really no benefit, as phones use SD card's very differently from camcorders or cameras...
On my ooooold phone, anything above Class6 was bad juju. I have always had class4 or lower cards, no fried cards (yet... lol)
kinda what I am feeling too. Not sure what class card I have but it was just a cheap 32gb from wallmart... Only had that error pop up once with this one though, and that was after trying to use usb storage.
Sent from my XT897 using xda premium
arrrghhh said:
I wonder if it's the c10 cards...
You guys really shouldn't be using high class cards in a phone - there's really no benefit, as phones use SD card's very differently from camcorders or cameras...
On my ooooold phone, anything above Class6 was bad juju. I have always had class4 or lower cards, no fried cards (yet... lol)
Click to expand...
Click to collapse
Class 10 shouldn't make a difference to a device. The class/speed only comes in to play when transferring data from/to a computer, which will be faster on Class 10 vs Class 4 or 6.
Sent from my PC36100 using Tapatalk 2
arrrghhh said:
I wonder if it's the c10 cards...
Click to expand...
Click to collapse
As best as I can tell, thats a negative. Ive been running with a 32GB class 10 since around when the phone was released, and Ive had no issues. Quite surprising on its own, seeing as I abuse the poor thing. True that class 10 arnt useful for the phone specifically, but some shops only carry class 10 cards.
@hfase
I dont seem to have any issues with mass storage, with ~1GB written a day. Im quite curious as to why some people have this issue.
ADegtyarev said:
As best as I can tell, thats a negative. Ive been running with a 32GB class 10 since around when the phone was released, and Ive had no issues. Quite surprising on its own, seeing as I abuse the poor thing. True that class 10 arnt useful for the phone specifically, but some shops only carry class 10 cards.
@hfase
I dont seem to have any issues with mass storage, with ~1GB written a day. Im quite curious as to why some people have this issue.
Click to expand...
Click to collapse
Maybe it's all down to the quality of the actual card itself?
Perhaps the cheaper no-name / off-name brands have a much higher failure rate....?
I'm not really sure, short of actual hardware issues on the device.
AW: Your SD card likely isn't the problem
Well here is my experience:
I am using a new san disk 32GB class10 micro sdcard. It was never format ed/ used before. The q itself formated the disk.
I have had no problems until using the twisted asanti prebuild
Version. Since then I only got problems with the qu saying the sdcard would be corrupt, after reboot. ( I expected some additional wired things, like the currents widget, which I deleted before reboot reappeared). So I would suggest it is an error in un mounting the sdcard before shutdown, which causes this failure.
Since I usually do not reboot the phone expect for flashing new roms, I had no trouble since then.
Hope this might help to further circle the problem, and maybe find a solution for this.
Sent from my awesome XT897
Since CM10 I haven't noticed any SD-Card issues, but I have the feeling, that there are some issues, which aren't detected.
In the last few days my CM10 was acting weird.
1. The gallery (together with the camera app, 2in1 app) disappeared in the App Drawer (was still in /system/app) and didn't appear again after overwriting gallery2.apk again.
2. The Google Weather App had a graphical issue, so I was sure, that there was a flash issue by restoring ASA14 and flashing CM10 (from SD-Card!).
I solved this issue in copying the nandroid backup and CM10 to the phone and flash it from there.
I have tested my SD-Card in my external cardreader, it had no issues in doing so.
My guess is, that the SD-Card needs more power than the Photon Q can give and is losing some read/write commands.
arrrghhh said:
Maybe it's all down to the quality of the actual card itself?
Perhaps the cheaper no-name / off-name brands have a much higher failure rate....?
I'm not really sure, short of actual hardware issues on the device.
Click to expand...
Click to collapse
I think This may have hit the nail on the head. I have had a couple cheap discount cards die but they really died. Cant even read in the PC and one even got really hot when plugged in. Got a good branded card from amazon and havent had a problem since.
Mordannon said:
I think This may have hit the nail on the head. I have had a couple cheap discount cards die but they really died. Cant even read in the PC and one even got really hot when plugged in. Got a good branded card from amazon and havent had a problem since.
Click to expand...
Click to collapse
I've used better Samsung and Sandisk cards and have had this issue. It just randomly wipes all my data and creates the LOST.DIR with it all in there, but file names are all renamed and would takes years to sort through and try to figure out what is what. All my photos, music, etc.. were basically gone then. It didn't matter that the card was a name-brand or not. I've had the issue with several cards.
I constantly have this problem as well, and I've found that mounting the SD card with a reader or in another phone in a Linux environment fixes it for the most part. I think files still get lost, but you get most of what you had back.
I got a 32GB UHS1 card last week and it hasn't had a problem.