microSDHC life expectancy - Desire Q&A, Help & Troubleshooting

Folks,
After having a Card die and buying a new one, that then failed, I have a question.
I've searched Google a bit but have not found an answer.
What is the likelihood/percentage/contributing factors, of getting a microSDHC card failure ?
I lost a lot of stuff when the first card failed, my fault for not backing up to an external device, I know better but ...... In looking to get a new card I just wondered what the failure rate/contributing factors were.
Thanks

Good question. How many writes can a SD card handle and how often does Android write to the SD card? And as follow on questions: put Dalvik on SD and what file system to use for A2SD?

Related

4GB SD Card Unreadable

My SanDisk 4GB Extreme 3 SD Card used to work on my PC's SD card reader. The SD card reader read it as a 4GB SD card.
I tried to use it on the Universal and it asked me to format the card to read it. I did not format it. Next I tried to plug it into the SD card reader on the Universal again and again and it would ask me to format it. I formatted it and it read! But sadly only as 1961MB or 2GB card. Next i took it out and tried it back on my PC's SD card reader. Now my PC would ask to format it.... omg. So i tried again and it still asked me to format it. This time the PC tried to format it but it failed. My PC is unable to read the SD card. I used an external SD Card reader and it failed to read my 4GB SD card too!.. omg Universal Destroyed my 4GB SD Card ;( .... and it only reads as 2GB on my Universal.
Can anyone help me get out of this miserable situation.
nuclear said:
My SanDisk 4GB Extreme 3 SD Card used to work on my PC's SD card reader. The SD card reader read it as a 4GB SD card.
I tried to use it on the Universal and it asked me to format the card to read it. I did not format it. Next I tried to plug it into the SD card reader on the Universal again and again and it would ask me to format it. I formatted it and it read! But sadly only as 1961MB or 2GB card. Next i took it out and tried it back on my PC's SD card reader. Now my PC would ask to format it.... omg. So i tried again and it still asked me to format it. This time the PC tried to format it but it failed. My PC is unable to read the SD card. I used an external SD Card reader and it failed to read my 4GB SD card too!.. omg Universal Destroyed my 4GB SD Card ;( .... and it only reads as 2GB on my Universal.
Can anyone help me get out of this miserable situation.
Click to expand...
Click to collapse
Go to Sandisk Site - I belive there is a program to repair it - I have the same problem before year with 2GB Sandisk card with accesible only 986MB and corect it - I just don't remeber what was this utility but I'm sure there is a UTILITY
agisofttm said:
Go to Sandisk Site - I belive there is a program to repair it - I have the same problem before year with 2GB Sandisk card with accesible only 986MB and corect it - I just don't remeber what was this utility but I'm sure there is a UTILITY
Click to expand...
Click to collapse
Alright just before I go looking out for this SanDisk fix utility I would like tell you that SanDisk hasn't officially marketed the 4GB Extreme III cards in North America and Asian Mainland. It comes from Japan so I wonder if i will be even able to recieve support on it or a fix utility. How big is this fix utility? Can you upload it here if you find one for a 4GB extreme III card or post the link please? How the hell does it suddenly become 2GB....?_?
On some SD card readers it wont read too! And on all other places it reads as 2GB and wont go above 2GB. I thought maybe its just a reading issue but it actually reformatted the firmware to 2GB >.< .... I am sueing either microsoft or sandisk on this, like I think enough is enough and both companies have reached their limit on troubling me...always i get imperfect stuff.
I am really stressed out after spending so much money and still having technical difficulties with these things.
RE
I believe using QTEK latest ROM with A2DP has no problem working with 4GB SD card
FOSA said:
I believe using QTEK latest ROM with A2DP has no problem working with 4GB SD card
Click to expand...
Click to collapse
I have to agree with FOSA. My 4GB Card works just fine. Plus, it worked fine even when I was testing the different AKU 3 ROMs.
nuclear said:
Alright just before I go looking out for this SanDisk fix utility I would like tell you that SanDisk hasn't officially marketed the 4GB Extreme III cards in North America and Asian Mainland. It comes from Japan so I wonder if i will be even able to recieve support on it or a fix utility. How big is this fix utility? Can you upload it here if you find one for a 4GB extreme III card or post the link please? How the hell does it suddenly become 2GB....?_?
On some SD card readers it wont read too! And on all other places it reads as 2GB and wont go above 2GB. I thought maybe its just a reading issue but it actually reformatted the firmware to 2GB >.< .... I am sueing either microsoft or sandisk on this, like I think enough is enough and both companies have reached their limit on troubling me...always i get imperfect stuff.
I am really stressed out after spending so much money and still having technical difficulties with these things.
Click to expand...
Click to collapse
Try Panasonic SD Formatter...
.dredd. said:
Try Panasonic SD Formatter...
Click to expand...
Click to collapse
Oh no... Both the cards aren't being read by the PC's SD card reader anymore. The PC's SD Card reader will always ask me to format the card but when I click to format it wont, just freezes.
From all my SD card readers only the Universals SD card reader works, only shows 2GB and I cannot load more than 2GB of data on the SD card. I can access the SD card from my PC using the Universal as an SD card reader. My USB card reader wont read it either. All my other 2GB mini-SD cards work flawlessly.
Maybe I should try another ROM and see if the SD card can be formatted back to 4GB and 8GB respectively. I was using a ROM that I was making myself while this incident happened. I think that ROM will need more fixing. For now I will roll back to a stable ROM. Some people suggest the Qtek Official ROM and some say that all the AKU 3 ROM's here work to read the 4GB cards well.
I just got to keep testing eh? Testing and learning how these SD cards function in which ROM?
Panasonic SD card formatter wont work because the PC cant read the SD cards, its like one of those corrupt damaged CD's that you cant even access.
nuclear said:
Oh no... Both the cards aren't being read by the PC's SD card reader anymore. The PC's SD Card reader will always ask me to format the card but when I click to format it wont, just freezes.
From all my SD card readers only the Universals SD card reader works, only shows 2GB and I cannot load more than 2GB of data on the SD card. I can access the SD card from my PC using the Universal as an SD card reader. My USB card reader wont read it either. All my other 2GB mini-SD cards work flawlessly.
Maybe I should try another ROM and see if the SD card can be formatted back to 4GB and 8GB respectively. I was using a ROM that I was making myself while this incident happened. I think that ROM will need more fixing. For now I will roll back to a stable ROM. Some people suggest the Qtek Official ROM and some say that all the AKU 3 ROM's here work to read the 4GB cards well.
I just got to keep testing eh? Testing and learning how these SD cards function in which ROM?
Panasonic SD card formatter wont work because the PC cant read the SD cards, its like one of those corrupt damaged CD's that you cant even access.
Click to expand...
Click to collapse
if you have digital camera.. put your SD card on digital camera and format it .. im doing many times and my SD card back to normal
cheers
indra9110
indra9110 said:
if you have digital camera.. put your SD card on digital camera and format it .. im doing many times and my SD card back to normal
cheers
indra9110
Click to expand...
Click to collapse
Thanks so much indra. It worked. Both my 8GB and 4GB cards are back to life! The format also returned them to their original 4GB and 8GB state
If you bought the card in high street store, return it.
nuclear said:
My SanDisk 4GB Extreme 3 SD Card used to work on my PC's SD card reader. The SD card reader read it as a 4GB SD card.
I tried to use it on the Universal and it asked me to format the card to read it. I did not format it. Next I tried to plug it into the SD card reader on the Universal again and again and it would ask me to format it. I formatted it and it read! But sadly only as 1961MB or 2GB card. Next i took it out and tried it back on my PC's SD card reader. Now my PC would ask to format it.... omg. So i tried again and it still asked me to format it. This time the PC tried to format it but it failed. My PC is unable to read the SD card. I used an external SD Card reader and it failed to read my 4GB SD card too!.. omg Universal Destroyed my 4GB SD Card ;( .... and it only reads as 2GB on my Universal.
Can anyone help me get out of this miserable situation.
Click to expand...
Click to collapse
thanks for that
indra9110 said:
if you have digital camera.. put your SD card on digital camera and format it .. im doing many times and my SD card back to normal
cheers
indra9110
Click to expand...
Click to collapse
boi said:
If you bought the card in high street store, return it.
Click to expand...
Click to collapse
Which Card the 4GB or the 8GB one?
nuclear said:
Which Card the 4GB or the 8GB one?
Click to expand...
Click to collapse
whichever one/ones your having problems with and brought from a high street store lol
daddy k said:
whichever one/ones your having problems with and brought from a high street store lol
Click to expand...
Click to collapse
I am still having the problem where the Pocket PC reformats my 4GB card into a 2GB card and SanDisk is unable to find a solution to it.
Also while using other ROM's my 4GB card is not read? It seems the hardware is compatible to read 4GB cards except the ROM is not designed to do so. For example Helmi's AKU 3.5 ROM cannot read my Sandisk Extreme III 4GB. Now SanDisk also doesn't believe that i have that card because they never marketed it, but they dont know that I got it from their factory! Now that remains a secret how i got it. Its really fast and amazingly I gave it to a few people.
Luckily i found a ROM that reads my 4GB card except the 4GB card is always reformatted to 2GB... Its very confusing because even my PC now reads it only as 2GB....It was working fine about 2 weeks ago as 4GB.
If I can get any help to make this card back to a 4GB please! Thank you for your help ^^
From what I've read some weeks ago on the Panasonic homepage was, that SD-cards following the "old" SD-standard are designed for up to 2GB capacity. Everything above that is non-standard and will likely make problems. (Although there are some exceptions as you can read here on this forum.)
To come around these problems, they invented the SDHC-standard for sizes from 4GB and more. Sad thing is, that the reading device has to support this standard. The Universal doesn't afaik.
You can even read that on Wikipedia:
Some manufacturers have produced 4GB SD cards that do not conform to the SD2.0/SDHC and are incompatible with existing SD devices, and are also incompatible with SDHC devices.
Click to expand...
Click to collapse
So if you have problems, stick to 2GB cards. They work flawlessly.
P.S.: I first bought one of those 4GB-SD-cards and it was recognized by my Universal as 4GB but after copying approx. 5-6MB on it, it suddenly stopped working. The Universal always asked to format this thing. The PC showed sizes of about 930MB, even the Panasonic SD Formatter wasn't able to do anything about it. So I returned it and got 2x 2GB cards. No problems at all.
mbirth said:
From what I've read some weeks ago on the Panasonic homepage was, that SD-cards following the "old" SD-standard are designed for up to 2GB capacity. Everything above that is non-standard and will likely make problems. (Although there are some exceptions as you can read here on this forum.)
To come around these problems, they invented the SDHC-standard for sizes from 4GB and more. Sad thing is, that the reading device has to support this standard. The Universal doesn't afaik.
You can even read that on Wikipedia:
So if you have problems, stick to 2GB cards. They work flawlessly.
P.S.: I first bought one of those 4GB-SD-cards and it was recognized by my Universal as 4GB but after copying approx. 5-6MB on it, it suddenly stopped working. The Universal always asked to format this thing. The PC showed sizes of about 930MB, even the Panasonic SD Formatter wasn't able to do anything about it. So I returned it and got 2x 2GB cards. No problems at all.
Click to expand...
Click to collapse
Except I cant return it because I got it from Japan and it will be coming soon in retail markets by 2-5 months. I agree the 2GB cards work flawlessly. Except I would like larger storage.
I am using CNET Flash format to reformat the Card except it wont go back to being 4GB. It seems the firmware of the card has been overwritten
nuclear said:
example Helmi's AKU 3.5 ROM cannot read my Sandisk Extreme III 4GB. Now SanDisk also doesn't believe that i have that card because they never marketed it, but they dont know that I got it from their factory! Now that remains a secret how i got it. Its really fast and amazingly I gave it to a few people.^
Click to expand...
Click to collapse
are u for real?
listen if u are for real then please do a screen grab of your pda reading your big cards, and a quick picture using ur pda and post up that pic of the magic sandisk ultra 4gb that even they the manafacturers say isnt around, yet you say you got it from their factory but they are not releasing it for quite a few months, trust me memcard manafacturers do not need tht much time to manafacture stocks before they supply them so me thinks you are a little deluded
daddy k said:
are u for real?
listen if u are for real then please do a screen grab of your pda reading your big cards, and a quick picture using ur pda and post up that pic of the magic sandisk ultra 4gb that even they the manafacturers say isnt around, yet you say you got it from their factory but they are not releasing it for quite a few months, trust me memcard manafacturers do not need tht much time to manafacture stocks before they supply them so me thinks you are a little deluded
Click to expand...
Click to collapse
No, he's just a liar. Nothing more.
nuclear said:
It seems the firmware of the card has been overwritten
Click to expand...
Click to collapse
There is no a firmware inside the cards that might be overwritten using end-user tools. In your case most probably the card was re-partitioned. Read about MBR and partition tables for details. Quite easy to fix.
Lurker0 said:
There is no a firmware inside the cards that might be overwritten using end-user tools. In your case most probably the card was re-partitioned. Read about MBR and partition tables for details. Quite easy to fix.
Click to expand...
Click to collapse
Thank you Lurker. I will look up MBR and partition tables. I am really lost on this MBR and partition tables. If you can help me out and just walk me through on how to fix my card i will be really happy. Or any links will be helpful too.
Lurker... would this do? http://www.ptdd.com/mbr.htm

SD card incompatability

Is there any way to make a 2G SD card look like a 256M SD card to an old device.
My ipaq210 allows me to boot from an old small MMC/SD card but cannot boot from a new 'large' one.
Is there any way to re-format heads/cyl/sectors/...
a 2G SD card to trick the old hardware into thinking its a 128or256M card?
I don't know anything about this stuff.
Sorry for not finding through search.
no way if the sd card in question is sdhc then you can't use it
otherwise you can partitionize it just like one do a harddisk
Rudegar said:
no way if the sd card in question is sdhc then you can't use it
otherwise you can partitionize it just like one do a harddisk
Click to expand...
Click to collapse
Thanks for the help.
I tried partitioning several different ways.
Still only likes the small cards.
It does not even get to the boot loader.
Must be a hardware incompatbility.

Memory Card Formatting

Good Evening once again,
Now that my phone is up and running again thanks to some wonderful people on here I was wondering if some could offer some advice on my memory card.
I was given a 32GB m-sd card for xmas that I REALLY want to use in my phone however having a problem formatting it. Using Gparted it will only let me create one partition. If I put my old 8GB mem card in I can delete all the parts and then recreate the two (one Fat32 and one ext4) So is there a reason why I cant do it on my 32gb card and is it fixable?
Thanks,
Max
If youre a windows user, google and download h2testw.exe to test the SD card. Just to confirm that there are no errors in the entire 32GB of space.

[Q] SD Card Encryption

Hello. I've encrypted my sd card and have been dealing with occasional images and videos files being corrupt and not being able to be read. I have a SanDisk Ultra 64GB microSDXC Card (Class 10/U1). I've formatted this card in the phone and is now formatted using the SD Formatter using my PC but with the same outcome. Would rooting this phone have anything to do with corrupt files or could it possibly be my SD Card? Or maybe perhaps the encryption method used by the phone is just not reliable?
Any help is much appreciated.
In the meantime, I've decrypted my phone so let's see if there are any reliability changes.
Update: I got a new replacement and have the same damn problem. I have turned off SD Card encryption and it has been good so far.
Could you please suggest something equivalent in the event my phone is lost or stolen? I have TrustGo installed and do believe it can wipe my phone but not the data on the SD card.

[Q] Micro SD Card problem

Hi there.
I'm having problems with the SD card, is always unmounting with no apparent reason...
When I'm on the Album (or gallery) and I scroll trough the photos (I've got a few) the card is unmounted and I need to take it of, and put it back in...
While I'm copying files from the PC to the card (trough the phone) the same thing happens...
The card is a sandisk class 10 32Gb... it was used on my SGS2 and never had any problem...
Does it worth to buy another card, or someone else is having the same problems?
I think this is a problem with your sd card. I don't have any problem like that.
Can you please tell me what card do you have?
I have already formatted the card on the pc and on the phone, the result is the same...
Weird problem, I own a Goodram 32 GB Class 10 micro sd card and I haven't got any problems with it. You say that you have tried formatting the card. What format have you chosen? Have you tried reset to factory reset your device? Are you on some custom rom or the stock one? Do you have a possibility to check wheter the problem exists with other micro sd card? Perhaps you can borrow it from someone for a moment or you have another one somewhere. Worst case scenario the card port could be damaged.
arpinacio said:
Can you please tell me what card do you have?
I have already formatted the card on the pc and on the phone, the result is the same...
Click to expand...
Click to collapse
I have a Kingston microSDHC 32GB, Class 4 :good:
Hi,
I'm sure that's an issue with your sd card. I've had the same issue with my old SGS3 and an SanDisk 64GB sd card. Then I bought a new Kingston 64GB sd card and it works.
I formated in FAT and in FAT32, same result in both.
Im in the stock ROM, totally unchanged.
I already get a new card and I'm testing it now, if it stills get me troubles I will try the factory reset.
Yeah... that is my fear... that the port is defective or something like that
Ok, updating from the previous post.
I've bought another SD Card and although that on the first time that I used it on the phone, it gave me the same behavior, after formatted it on the phone itself, so far so good.
I've tried the old SD Card with an adapter on the pc, and it works fine, no problem at all... so it must be something specific to the phone, I've read that some Samsung are a SD card eaters, so I believe that the problem is related to that (my previous phone was a SGS2).
Thank you all for the tips.
arpinacio said:
I've tried the old SD Card with an adapter on the pc, and it works fine, no problem at all... so it must be something specific to the phone,
Click to expand...
Click to collapse
Not necessarily.
Card of class 4 may be good enough for your computer, specially if it is older too, but may be too weak for newest modern phone.
F308 said:
Not necessarily.
Card of class 4 may be good enough for your computer, specially if it is older too, but may be too weak for newest modern phone.
Click to expand...
Click to collapse
An SD card can't be 'too weak'
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