Develop Bugs

Micro SD card sometimes disappearing

I am using T-mobile Touch Pro 2.
I am quite satisfied with this device except for one problem.
Sometimes (once a day or every other day?) when I turn the device on, the micro sd card is not detectable. The card is in the slot, but the device just cannot find it. (It shows like there is no sd card!)
When I reboot the device or take the micro sd card off and insert again, the device recognize it which makes me very annoyed.
Anyone who has the same problem and the solution?
Many thanks in advance.
FYI, I am using Transcend 8GB micro sd card (class 6.)

The only time I have something like this issue is when I connect the phone to the PC as an external drive, which is by design. Unplugging the phone sets it right again.

Change your MicroSD to SanDisk and you wont have any problems. I have a class 2 16GB and I dont have any problems. If you're worry about the performance, it's pretty fast. using the phone as removable drive it writes at just under 4mb/s, using a usb adapter and the write speed sustains at 8-10mb/s which out performs minimum class 6 standard. All the test was done on a 16gb class 2 with 10gb of badly fragmented files already on the card and writing another 5.5GB into the card. I havent tested read speed but it's faster than write speed.

beckkim said:
I am using T-mobile Touch Pro 2.
I am quite satisfied with this device except for one problem.
Sometimes (once a day or every other day?) when I turn the device on, the micro sd card is not detectable. The card is in the slot, but the device just cannot find it. (It shows like there is no sd card!)
When I reboot the device or take the micro sd card off and insert again, the device recognize it which makes me very annoyed.
Anyone who has the same problem and the solution?
Many thanks in advance.
FYI, I am using Transcend 8GB micro sd card (class 6.)
Click to expand...
Click to collapse
I had the same problem when i first got my sprint pro 2. All you have to do to fix is... using any card reader, copy all the files on your micro sd card to a new folder on your computer. then format the card to fat32. once formatted copy all of your files back onto the card. pop it back in and you should be good to go.. after doing this to mine, my 16g card hasn't disappeared once.

lnando84 said:
I had the same problem when i first got my sprint pro 2. All you have to do to fix is... using any card reader, copy all the files on your micro sd card to a new folder on your computer. then format the card to fat32. once formatted copy all of your files back onto the card. pop it back in and you should be good to go.. after doing this to mine, my 16g card hasn't disappeared once.
Click to expand...
Click to collapse
Thanks a lot!
I will do what you said right away. Hope it will solve the problem

SD card problems

I am having problems with my SD card. I used to have a mytouch, and I bought a Sandisk 4GB back then. When I got the S2 back in Decemeber 2011, all i did was format the micro card to work. The S2 shows that its there under Storage, but i have always have difficulties actually using it. You will see that it has some used into it. I can only reach it through USB connection and transfer file that way. However, whenever I use any programs which can be install under SD card, it will not do so.
As you will noticed below i have a problem call App 2 SD Pro, which it will only show both memories with my phone, Storage and USB, which is the same phone memory. By no means, its finding the Micro SD card. Can anyone tell me why is this? This phone is not rooted and i have only 2.3.6.
Thank you in advance.

If you look through your list of folders under /sdcard, your micro sd is the 'external_sd" folder.

Yes that is true. Is under External SD card. My question is, why are some programs, mostly all, having difficulties to find it? and can i have all for example game files, be saved onto my "external SD Card"?

What is the speed of your sd card?
class 2, 4, 6, 8 or 10?
www.rkepowerfitness.com
Sent from my SGH-T989 using XDA

How would i know that? all i can see on the card is, Sandisk 2 in circle, 4GB SDHC micro. Where else can i check? which class is best?

You have a class 2. It has been my experience that when you move an app to sd card, on this phone it uses the internal "USB" storage.

So what can i do to do the opposite? Meaning, using the actual SD card instead of the internal.

dragonfire665 said:
So what can i do to do the opposite? Meaning, using the actual SD card instead of the internal.
Click to expand...
Click to collapse
I'm having the same issue too.... I know what you mean.... I try to back up my phone but it won't... Help please

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

[Q] Problem with new SD card.

So far i have been using the old sd card that came with my Arc S. Its been working fine but ive ran out of memory. So i bought a new 32gb MicroSD HC card. Its class 4. This one to be specific -
SanDisk 32GB Micro SD HC Memory Card
SDSDQM-032G-B35
I inserted my new sd (empty) into the phone. When the phone started, there was a Sh*t ton of lag. I basically couldnt do anything. You could say the sd card froze my phone. Is this normal ? keep in mind, the sd card was empty. I got scared and immediately removed the SD card. I put in my old sd card, it still lagged but i waited for about 30 minutes and it was just fine. Its been fine ever since. I have copied all the contents of my old sd card onto my pc and then onto my New SD card. I'm confused on whether to put it in or not. Will it harm my device? As far as i know, Arc S supports 32GB. My phone isnt rooted or anything. Just official Sony ICS if that helps in any way.
Thanks for the help guys.

Changing SD Cards
iTzSam said:
So far i have been using the old sd card that came with my Arc S. Its been working fine but ive ran out of memory. So i bought a new 32gb MicroSD HC card. Its class 4. This one to be specific -
SanDisk 32GB Micro SD HC Memory Card
SDSDQM-032G-B35
I inserted my new sd (empty) into the phone. When the phone started, there was a Sh*t ton of lag. I basically couldnt do anything. You could say the sd card froze my phone. Is this normal ? keep in mind, the sd card was empty. I got scared and immediately removed the SD card. I put in my old sd card, it still lagged but i waited for about 30 minutes and it was just fine. Its been fine ever since. I have copied all the contents of my old sd card onto my pc and then onto my New SD card. I'm confused on whether to put it in or not. Will it harm my device? As far as i know, Arc S supports 32GB. My phone isnt rooted or anything. Just official Sony ICS if that helps in any way.
Thanks for the help guys.
Click to expand...
Click to collapse
Your phone stucked/froze after insertion of new empty microsd since your phone is basically looking for the previously installed applications and games when it started.
By copying all the contents of your old microsd to your new microsd before inserting this to your phone will prevent the freezing upon startup, although minor lagging will be encountered a few hours or so while some syncing is done.. I did it your way when I upgraded from 16GB Class 4 to 32GB Class 6 (although not all the files, i left out the videos/mp3s/dcim since i can copied them back later) and encountered no problem. So go on, insert your 32GB microsd already:laugh:

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