Develop Bugs

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

Having issues formatting MicroSD card, Help?

I'm running the Blazer rom with the Jellybomb domination theme. I have a 16GB SanDisk class 2 microSD card. I formated it, it erased everything etc... but as soon as it's done it still says SD card damaged, may need to re-format. What am I doing wrong, or is there a fix for this?

Aclingman said:
I'm running the Blazer rom with the Jellybomb domination theme. I have a 16GB SanDisk class 2 microSD card. I formated it, it erased everything etc... but as soon as it's done it still says SD card damaged, may need to re-format. What am I doing wrong, or is there a fix for this?
Click to expand...
Click to collapse
so lemme get this right u wanna format ur ext sd?

Well, perhaps the card is damaged?? Or is one of those fake knockoffs from China.
What I'd try first, is to put it in a PC.. use a normal Format on it (not quickformat)
See what happens... if the PC can format it, then go to step 2 below.. if not it's damaged/fake for sure.
Step 2.. Download one of the many SD card testing software I'd use H2testw.
If everything comes back fine.. then you should be able to pop it into your phone without an issue.. just be sure to format in Fat32 for the best compatibility.
Also, 16gig Class 2 is pretty much the bottom of the barrel card wise.. you can get 32gig class 6 or better for under $20 online at most retailers.. I've seen 32g Class 10 for 30-40, and just bought myself a 64 class 10 from amazon for 55 shipped.
Might be time to upgrade that card

SanDisk Ultra 64GB microSDXC Class 10 Only $54.51

Found this really nice deal on Amazon.
Just ordered one
http://www.amazon.com/gp/aw/d/B007WTAJTO/ref=redir_mdp_mobile?redirect=true

I'd say be careful. If you check some reviews, I heard when they sell out, they replace it with Class 6.
Sent from my SGH-T999 using xda app-developers app

You don't have to worry if you buy from Amazon. If you buy from a third party make sure it says "fulfilled by Amazon", you'll get super saver shipping and it will be exactly as described.

It's Sold by Amazon and
Fulfilled by Amazon,
so I'm not too worried about it.
If they ship something other than what I ordered, I'll just return the item
I've always had good experiences with Amazon, as long as the Items are Sold by Amazon directly, or if the Seller's Return Policy is the same as Amazon's.
I read through All 12 pages of Amazon reviews.
This Is a Class 10 Card.
The 4th reviewer was only stating his opinion. Every Reviewer (111 of 112) received a Class 10.
And the 4th reviewer most likely also received a Class 10.

I'm actually using this card right now. Ordered it Saturday, got it Wednesday. Works like a champ.
From Amazon, of course. The price was cheaper than ebay, with none of the risk.

Bought this card last night...hope it works in a 16 GB verizon s3...

I would live to get one of these but I'm in Canada. Anyone want to order one for me?
Sent from my SGH-I747M using xda app-developers app

got this card today and it does not work...does anyone know if you need to do anything special?

bearklaws said:
got this card today and it does not work...does anyone know if you need to do anything special?
Click to expand...
Click to collapse
What ROM are you using? Did you format the card?

senergy rom, and yes i formated it. i also transferd from old card to new card and still a no go.
went into setting /then to storage and tried to mount it that way also. it might be bad.

bearklaws said:
senergy rom, and yes i formated it. i also transferd from old card to new card and still a no go.
went into setting /then to storage and tried to mount it that way also. it might be bad.
Click to expand...
Click to collapse
I can't see pics at work if you uploaded a pic with that, but does your computer read it? Does your phone say its corrupt? If everything says it's corrupt you can probably go to control panel -> hardware and do a full format (25/30 minutes). If nothing recognizes it at all, it's bad and you should request a replacement/refund.

had a hard time formatting the very first time. I am going to do a full format now, if that doesnt work, its going back. Thanks for the help.
Tried everything i know how...i am sending it back...thanks

Just received mine, and installed it in my S3.
Working Perfectly
This is what I did:
- I removed my SanDisk 32GB Class 6 card from my S3 after 'Unmounting' it.
- I saved All data on the card to a Folder on my pc
*the 32GB card is FAT32
- I installed the 64GB card into my S3, Formatted it, and Removed it after 'Unmounting' the card.
I transferrerd All data onto my New 64GB Card via my pc
- I installed the 64GB card into my S3 and Everything is Working Fine
*the 64GB card is exFAT
The 64GB card had 59.47GB Usable memory beforing transferring my folders over to it.

Biker1 said:
Just received mine, and installed it in my S3.
Working Perfectly
This is what I did:
- I removed my SanDisk 32GB Class 6 card from my S3 after 'Unmounting' it.
- I saved All data on the card to a Folder on my pc
*the 32GB card is FAT32
- I installed the 64GB card into my S3, Formatted it, and Removed it after 'Unmounting' the card.
I transferrerd All data onto my New 64GB Card via my pc
- I installed the 64GB card into my S3 and Everything is Working Fine
*the 64GB card is exFAT
The 64GB card had 59.47GB Usable memory beforing transferring my folders over to it.
Click to expand...
Click to collapse
Nice...I could not even get my phone to see it...I did the same thing you did also...just a bad card,waiting for another.(thanks for the write up.)

bearklaws said:
Nice...I could not even get my phone to see it...I did the same thing you did also...just a bad card,waiting for another.(thanks for the write up.)
Click to expand...
Click to collapse
Your card arrived in the cardboard/blister packaging?
Don't know what the odds are of getting a defective card, taking into consideration the Seller, packaging, etc. But hopefully your replacement card will have no issue.
Have you tried to install the card into another device, if one is available?

Biker1 said:
Just received mine, and installed it in my S3.
Working Perfectly
This is what I did:
- I removed my SanDisk 32GB Class 6 card from my S3 after 'Unmounting' it.
- I saved All data on the card to a Folder on my pc
*the 32GB card is FAT32
- I installed the 64GB card into my S3, Formatted it, and Removed it after 'Unmounting' the card.
I transferrerd All data onto my New 64GB Card via my pc
- I installed the 64GB card into my S3 and Everything is Working Fine
*the 64GB card is exFAT
The 64GB card had 59.47GB Usable memory beforing transferring my folders over to it.
Click to expand...
Click to collapse
+1
I did exactly the same (my old 32GB FAT32 card to new 64GB exFAT one).
And everything is going fine...
Sent from Tapatalk 2

key_r said:
+1
I did exactly the same (my old 32GB FAT32 card to new 64GB exFAT one).
And everything is going fine...
Sent from Tapatalk 2
Click to expand...
Click to collapse
Sounds good to me
My S3 now has a capacity for 96GB of frigg'n
memory
That's a lot of memory!

does a 64gb card HAVE to be exfat? or can i make it fat32?

diz_dizane said:
does a 64gb card HAVE to be exfat? or can i make it fat32?
Click to expand...
Click to collapse
You can but you can't format it using the Windows formatter. I used easeus software to format mine so that the card would be visible in clockwork recovery. exFAT is not supported there. Had a bit of a scare after formatting with the HP utility. Repartitioned in easeus but it would only read on the computer and it would FC system apps on my phone. Figured out that the partition needs to be primary not logical (what easus defaults to for new partitions) to work on the phone. All you have to do is pop the card in the computer, open easeus and format fat32. Don't mess with partitions
Sent from my SPH-L710 using Tapatalk 2

nacron said:
You can but you can't format it using the Windows formatter. I used easeus software to format mine so that the card would be visible in clockwork recovery. exFAT is not supported there. Had a bit of a scare after formatting with the HP utility. Repartitioned in easeus but it would only read on the computer and it would FC system apps on my phone. Figured out that the partition needs to be primary not logical (what easus defaults to for new partitions) to work on the phone. All you have to do is pop the card in the computer, open easeus and format fat32. Don't mess with partitions
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
I didn't realize that Clockwork didn't read exFAT.
I just did a backup to my Internal storage cause as you say, CWM didn't see the ext. SD card.
I'm gonna reformat the card now.
Thanks.
Is this what I need to use to convert to FAT32?
http://en.kioskea.net/download/download-380-easeus-partition-master
I'm going to do the following:
- format 64GB card in my S3, which will delete all data
- install Easeus onto my pc
- put 64GB card into my pc
- open Easeus Utility, and format 64GB card to FAT32.
- reinstall Folders previously saved on my pc from my 32GB FAT32 card to the newly formatted 64GB card
- install card into my S3, and I should be good to go?
UPDATE:
- Formatted 64GB card to FAT32
- CWM recognizes card
All is well in the neighborhood

[Q] 64gb SD card showing as 32gb

So I bought a 64gb sandisk microSD card but when I tried to format it using GUI format it only formatted to 32gb. I formatted it on an old vista laptop since I don't have an sd card reader. Any idea why it wouldn't show as 64gb?

Where did you buy it from? There are a lot of counterfeit cards for sale.

metalfan78 said:
Where did you buy it from? There are a lot of counterfeit cards for sale.
Click to expand...
Click to collapse
This listing
http://www.amazon.com/SanDisk-Ultra...8&qid=1357260564&sr=8-8&keywords=64gb+sd+card

bestdayever said:
This listing
http://www.amazon.com/SanDisk-Ultra...8&qid=1357260564&sr=8-8&keywords=64gb+sd+card
Click to expand...
Click to collapse
That's not a MicroSD card, you have the wrong listing.

Jereso said:
That's not a MicroSD card, you have the wrong listing.
Click to expand...
Click to collapse
Woops, you're right. This one
http://www.amazon.com/gp/product/B009QZH6JS/ref=twister_B009QZH7BU?ie=UTF8&psc=1

bestdayever said:
Woops, you're right. This one
http://www.amazon.com/gp/product/B009QZH6JS/ref=twister_B009QZH7BU?ie=UTF8&psc=1
Click to expand...
Click to collapse
That looks like the right one...but wasn't Amazon as well as Ebay, rumored to be selling fakes?

So it's a SanDisk? It should work just fine.
Our phones unofficially support 64GB cards as do most phones. I remember even asking the question when 64GB cards just started to come it whether I could use them. You may need to format the card into another format then your phone will recognize every GB of it.
You will not be able to do this with your phone but formatting it on your computer. I'll try finding that form link for you which has a tutorial.
Sent from my SPH-L710 using xda app-developers app

ndh777 said:
So it's a SanDisk? It should work just fine.
Our phones unofficially support 64GB cards as do most phones. I remember even asking the question when 64GB cards just started to come it whether I could use them. You may need to format the card into another format then your phone will recognize every GB of it.
You will not be able to do this with your phone but formatting it on your computer. I'll try finding that form link for you which has a tutorial.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I used the GUI format which is a version of FAT32 format for windows to format the card. When I formatted it I ended up with 32gb instead of 64gb and wondering if it is just a problem with the laptop or the card. If the laptop micro sd card reader didn't support 64gb would it see the card as 32 or just not see it at all?
EDIT: I had my friend format my card with his stock S3 and it recognized all 64gb (although its in exFAT so my phone won't read it DOH) so it appears the laptop I used doesn't support SDXC and that was the issue. Gonna buy a media card reader for my pc to format the card. Thanks for the replys.

Glad you got it going. Here's the thread I started about it, if you're still interested http://androidforums.com/evo-4g-accessories/384806-64gb-micro-sdxc-card.html

ndh777 said:
Glad you got it going. Here's the thread I started about it, if you're still interested http://androidforums.com/evo-4g-accessories/384806-64gb-micro-sdxc-card.html
Click to expand...
Click to collapse
Thanks for the link, but for me the issue was my microSD --> USB dongle converter which wasn't compatible with the SDXC. Not sure how the converter could limit this but obviously it did. Will try to find another usb dongle since its more convenient to have that than a SD card. i dont have a SD reader in my big PC either.

Next time you need to Format an SD Card, and want to do it on the PC / Laptop. Use SD Formatter. It has never failed me once. It has even saved a few SD Cards that were allegedly done. I've used the program on several older PC's and Laptops. With nothing more than the SD Card Adapter. But it does require the card to be out of the Device. So not having an SD Card Reader port on the PC /Laptop is an issue .

i had the same but solved
:good:
bestdayever said:
So I bought a 64gb sandisk microSD card but when I tried to format it using GUI format it only formatted to 32gb. I formatted it on an old vista laptop since I don't have an sd card reader. Any idea why it wouldn't show as 64gb?
Click to expand...
Click to collapse
try using some other card reader or leptop with in built card reader and this time use "MiniTool Partition Wizard Home Edition" google and download
and just run it then unmount ur card and then mount manually u will see 2 partitions on ur SD card reader just delete 2nd partition and click apply and then after format it to exfat by using stock windows tool built in windows ....
Think used Mac or other os format it .???

I have a SanDisk ultra 64 gig micro sd card from walmart I bought for 59 dollars and everything I use it with see 64 gigs. Don't buy the cards online there cons and if you can get a refund. I paid 100 for a 32 gig micro sd card a few years ago, so 59 for 64 gig is a steal. I have the sprint gs3 also.
Sent from my GT-i9300 using xda app-developers app

[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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