Develop Bugs

32 gb sandisk

hi, i hope this is right place to put this and also to let you know i did do a search of the forum and couldn't find an answer...
i just bought a 32 gb sandisk micro sd card and inserted it into my galaxy s, i have tried to add thing to this via my pc and also via astro on my phone, each time it seems to get a little of the way and then the external sd card unmounts its self (at least i think thats whats happning ) and then i get an error on my pc saying the read/right disc was unreadeable, then my pc says that the external memory needs formatting before i can continue use, if i then go back into my phone i notice te external memory is no longer mounted, this is driving me mad, if anyone can help please do before i throw my phone out the window lol....i am using a rooted galaxy s with 8gb onboard memory

It sounds like you have a bad card. I would return it for a new one.

Let me guess, eGay. . . . .
I have 2 fakes sitting right here. . . . This is a huge scam.
Buy memory from reliable sources only.
my 16Gb card is a 1Gb in reality.

Hmmm...did you make sure that the USB mode is set to debug and then the dial up mode is off. This same thing happened to me last night. Make sure that's done. Restart the phone and THEN plug the cable in. I'm guessing it keeps flipping out and there's a red pyramid in the upper left hand corner?

Bad Memory
I believe you got a "fake" memory. I have experience of this before. A lot of programmer will be able to re-program the card from 2G to 32G or whatever the capacity they want. just google it, there is a free program will be able test it and tell you the real capacity your card has it. if the price is incrediblely low, there will be a problem. if you got it from ebay, just dispute it and get your money back.

Look for the program h2testw, it will tell you actual capacity of your card, likely 64-512mb only.

Yes, scams. You should only buy to respective shops. Sadly some of my friends bought things like 10pcs. Too bad they got scammed. I learned my lesson and it is just somehow like 3-5$ difference.

I'd say stick to Newegg and Amazon for memory purchases.

Which is the best company for 32 gig class 10's

I've bought 8GB and 16GB cards from those Chinese deal sites. They worked out alright. They weren't too experience. But I agree, if you want a 32 GB card, go buy a reliable brand from a credit-worthy source.

where can u buy cheap memory cards

Buymemorycards.co.uk
Sent from my GT-I9000 using Tapatalk

sdlopez83 said:
Which is the best company for 32 gig class 10's
Click to expand...
Click to collapse
I've got the Patriot LX Series 32gb Class 10 Micro sd card in my Galaxy S, and it's awesome... was $99 with free shipping from newegg.com
http://www.newegg.com/Product/Produ...=patriot_32gb_class_10-_-20-220-547-_-Product
I've had great luck with mine, and it flies.. now it's $83.99 after mail in rebate with free shipping..

Newegg had the 8 gb transcend for 15... that thing is so fast 15 MB/s read and write. Was using a sandisk was awful.
Sent from my DROIDX using XDA App

what about sandisk or cnmemory? I used different memory cards from them, without problems so far.

I ordered a 32GB Class10 Lexar SD from Amazon compliments of swagbucks. Waiting for it to ship. Anyone used Lexar cards before?

crawler9 said:
I ordered a 32GB Class10 Lexar SD from Amazon compliments of swagbucks. Waiting for it to ship. Anyone used Lexar cards before?
Click to expand...
Click to collapse
Lol. Im still waiting for the shipment as well being shipped next week. Ordereded that's what over for using free shipping.
Sent from my MB860 using XDA App

shadow7582 said:
what about sandisk or cnmemory? I used different memory cards from them, without problems so far.
Click to expand...
Click to collapse
I'd say Sandisk is the best quality memory card you can buy. Class 2 and 4 Sandisk work great for WP7 or for running Android off of on a HD2. Class 2 and 4 cards generally have a better random access speed than class 6 or 10 cards. You only want higher class cards for digital cameras where you are writing a lot of file sequentially. For running operating systems where itneedsto read small amounts of data from many parts of the card quickly, a quality class 2 or 4 card works best.

sdlopez83 said:
Lol. Im still waiting for the shipment as well being shipped next week. Ordereded that's what over for using free shipping.
Click to expand...
Click to collapse
Received mine today.

crawler9 said:
Received mine today.
Click to expand...
Click to collapse
You should test the card with CrystalDiskMark and HD Tach to get the random read and write speeds and random access time. I'm curious as to how the class 10 Lexar rates in those speeds.

SD Card Unexpectedly Removed

I'm having the dreaded 'SD Card Unexpectedly Removed' issue. The card seems to work fine in other devices, but my Note 2 cannot deal with it. Mine is a SanDisk 32GB Class 4. It was working fine for weeks, and now all of a sudden, it loses the card every time the phone goes to sleep. Once the phone wakes up, it flashes the warning, then says 'Preparing SD Card', and it works fine until the phone goes to sleep.
I noticed that many Verizon Note 2 users are having the same issue...
http://forums.androidcentral.com/verizon-galaxy-note-2/231647-sd-card-unexpectedly-removed.html
Is anyone else seeing this problem?

It did happen to me with my sandisk 32GB class 4 card. I swapped it with a 16 GB card from a 2 year old
moto droid unused in my basement dump and it worked. It has been over 3 wks now and no issues. I dont think it is a device fault but sense that many note 2 users have bumped into this issue lately..something fishy.
Sent from my SGH-T889 using Tapatalk 2

Hi guys.. I've same issue last night.. All data missing.. Cannot open on computer also.. Any solution?
Sent from my GT-N7100 using xda app-developers app

I had this problem also. I had 32 gb class 10 sandisk sdcard 1st time I bought this phone. It was working fine for the 1st 3 weeks but after that I got that dreaded message everytime I wake my phone. I thought its my phones hardware but when my brother and I swapped cards, that message never appeared again. I currently have a 16 gb class 10 sd. My brother has tmobile galaxy s2, that message showed after 2 days of using that card. I reformatted that card and checked it for errors multiple times. There was no problem. I dont know probably some samsung phobes have issues about sdcard 32 gb and above. I have read it in galaxy s3 forums also.
Sent from my SGH-T889 using xda app-developers app

I'm actually having a similar problem with my sn2 not reading my 32gb SanDisk card, I'm going to try to reformat it and see what happens. Just got the phone two days ago.

I fixed my problem by installing the new twrp 2.3.2.3 recovery using goo manager. I followed these instructions from the twrp website.
In goo manager tap menu on your phone and hit install openRecoveryScript, tap yes, verify filename displays your devices name and hit yes. The file will download and install on your device, now reboot.
Hopefully this helps people

I have a sandisk 64gb class 10 I havent had this problem as of yet...
Sent from my SGH-T889 using xda app-developers app

I'm just gonna throw this out there... It kinda seems like the latest Samsung phones are happily corrupting SD cards right and left. Now, maybe some cards are more susceptible to this, but the fact remains that this is not just anecdotal anymore. We need to get the various phone groups that are seeing this issue to band together and contact Samsung for a fix.
Sent from my SGH-T889 using xda app-developers app

My Sandisk class 10 32gb card died on me too. Went to best buy exchanged for another one, reformat it. ... so far so good.
Sent from my SGH-T889 using xda app-developers app

Mine worked fine for a while, too. I'm not sure what triggered it, but I think the phone did something to it. The reason I think this is simple. I have had many devices with SD cards in them, and never have I had one go bad. This phone was using a card that I had used for months before in another phone, and within a month the card was bad. When I looked online, I found hundreds of cases of the same issue, mostly with Samsung S3 and GN2 phones. It seems too much to be a coincidence.
Sent from my SGH-T889 using xda app-developers app

havocd said:
I have a sandisk 64gb class 10 I havent had this problem as of yet...
+1
Click to expand...
Click to collapse

I am having the same issue. It is with all SD-Cards I try after some time. I have 2 32gb Sandisk class 10 that I tried and a handful of 2 and 4 gb class 4 and class 6 cards. After sometime, 20 minutes to a couple of hours I starting getting the "SD Card unexpectedly removed" Then a quick scanning s Card message. I tried formatting the cards with different computers and even using my Linux machine to see if it would fix it.
Has anyone come up with a solution yet? Should I swap the phone out for another one since I have ruled out the SD-Card as being the problem.
My 14 days hits this weekend and it is easier to get things done at T-Mobile before that time frame expires.

How about card format? All fat32? Exfat?

All fat32 for me. Phone is stock, holding out on root for awhile so I can learn why Touchwiz is so hated.
Sent from my SGH-T889 using xda premium

Maybe format on your computer in exfat, maybe make a difference?

stevessvt said:
Maybe format on your computer in exfat, maybe make a difference?
Click to expand...
Click to collapse
curious about this as well.
you guys not having problems, you format exfat??/ what is the difference between exfat and fat32?

I tried ExFAT, but the phone did not recognize it at all.
I wonder if anyone has had this issue with a Samsung brand card?
Swyped from a hand-held Galaxy.

Im getting the same problem with my 32 gb sandisk sd card but luckily amazon is still willing to exchange it out for me
Sent from my SGH-T889 using Tapatalk 2

I formatted mine to exfat to see what would happen. I checked online and this phone supports exfat natively. I moved my files back on to the card after the format and then tossed it in the phone and it worked. It has been over an hour and still has not removed itself unexpectedly.
Will report back in tomorrow after I give it some time to settle.
Sent from my SGH-T889 using xda premium

It is still removing itself almost everytime the phone goes to sleep. The last time it actually unmounted and tols me it was safe to remove the sd card when I woke the phone up.
What cards are people running? I have 2 I am testing this with:
SanDisk ultra 32GB SD-HC U1 (comparable to class 10), 1 is formatted to exfat and is half filled with mp3's, the other is fat32 and half filed with mp3's.
The mp3's are different on each card, I have a folder of music that I always throw back on the card but thought it might be corrupted so last night I made a new folder and added fresh music to see if that was the issue.
I found the official sd formatter program from the SD Alliance to try. I just formatted 1 of the cards with it and am moving the music back now. It will be a while though. From sd to computer the speeds are 12 to 30 MB/s but from computer to sd it is 2 to 5 MB/s?
Hope to have this figured out by the end of the day.
Sent from my SGH-T889 using xda premium

Micro SD Card Problems

I seem to be having trouble with my SANDISK 32GB Class 10 micro SD card. When I first got the Note II in November, I had a PNY card that was giving me trouble, so I got the SANDISK card to replace it. it's been reliable until this morning, in that the card lost all data, and even after reformatting it, it seems to work for about 10 minutes, thenphone does not recognize it. It's been trouble free for almost 3 months.
I seem to read that these SD cards on the Note II is extremely unreliable in general. Perhaps I need to switch brands. What would the very very very best brand of the micro SD card would you recommend? What micro SD card would be the most durable? I've always thought that SANDISK was good, but how about other brands? I'd like to keep using a 32GB Class 10 card if possible. I'm looking to use a card that will last more than 3 months.
Also, I'm completely stock on my phone...as I did not do any rooting.
Any suggestions would be greatly appreciated. BTW...I love the Note II!!
Thanks,
Mike

mikefly562 said:
I seem to be having trouble with my SANDISK 32GB Class 10 micro SD card. When I first got the Note II in November, I had a PNY card that was giving me trouble, so I got the SANDISK card to replace it. it's been reliable until this morning, in that the card lost all data, and even after reformatting it, it seems to work for about 10 minutes, thenphone does not recognize it. It's been trouble free for almost 3 months.
I seem to read that these SD cards on the Note II is extremely unreliable in general. Perhaps I need to switch brands. What would the very very very best brand of the micro SD card would you recommend? What micro SD card would be the most durable? I've always thought that SANDISK was good, but how about other brands? I'd like to keep using a 32GB Class 10 card if possible. I'm looking to use a card that will last more than 3 months.
Also, I'm completely stock on my phone...as I did not do any rooting.
Any suggestions would be greatly appreciated. BTW...I love the Note II!!
Thanks,
Mike
Click to expand...
Click to collapse
I'd try taking it out and cleaning the connections. Its worked for me in the past.
Sent from my SAMSUNG-SGH-I317 using xda premium

I had a samsung 32gb class 10 that would keep resyncing by itself after a SD card failure. I thought it was my card going out so I bought a new one to replace it. After a day or 2 with a Sandisk one I noticed it doing the same thing so now i know its not the SD card but the reader. Havent figured out a fix yet

A class 10 64GB sandisk card has been in my Note 2 since the day I received the phone. I haven't had any issues with it, and have about 20GB of space left.
http://www.amazon.com/SanDisk-Micro...SDQU-064G-AFFP-A/dp/B009QZH6JS/ref=pd_cp_pc_0
It was on sale for ~$40 last November
Running Stock, unrooted.

My wife's N2 has the exact same issue. I'm about to send it back... And she's the one that never jacks with ROMs and crap...

Since I installed saber kernel it has been happening alot . Almost every five minutes... or less.
Sent from my SGH-I317M using xda premium

Same problem here. Had the 32gb sandisk class 10 for about 3 weeks and now everyime I turn the phone on it said sd card unexpectedly remove. Tried switching to the pny 32gb class 10 and the same thing happened. Is there a fix for this, and how is the samsung 32gb class 10 sd card?
Sent from my SAMSUNG-SGH-I317 using xda premium

Samsung is fine ive made a thread a while back about this I do believe its the 32 gig san disk cards I bought a samsung and works fine . The sandisk started doing it in my wifes gs3 I thinks its just there cards tbh
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

My 64 gb class 10 sandisk works great, its in my second phone now. You have to be careful when you remove them so you minimize scratching and damage it.
Sent from my SAMSUNG-SGH-I317 using xda premium

I had issues with my SanDisk 32 as well try this
Put card into pc (windows) save any files you want to keep
Open terminal command where your car is at and format the card (I use fat32) then type
F dsk /h
Worked for me no issues since

+1
Swapped my Sandisk for a friends PNY. Fine ever since.
tyshemi said:
Samsung is fine ive made a thread a while back about this I do believe its the 32 gig san disk cards I bought a samsung and works fine . The sandisk started doing it in my wifes gs3 I thinks its just there cards tbh
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Click to expand...
Click to collapse

my wifes 32gb sandisk also crapped out. didn't work in her phone, my note II, or pc in several different readers. tried for a few days and nothing. i put it in the pc a week later and up pops the card. quickly d/l everything off the card.
so weird

I can't believe a reliable card made by Sandisk is giving issues, guess I'll get a samsung card next time.

Had the same issue with my card, removing and re attaching constantly. Got SanDisk to replace it, just took about 7 days turnaround time. New one is still working fine. Let's hope it stays that way.
Sent using Galaxy Note 2 w/ CleanROM 4.0.5

Astom22 said:
Had the same issue with my card, removing and re attaching constantly. Got SanDisk to replace it, just took about 7 days turnaround time. New one is still working fine. Let's hope it stays that way.
Sent using Galaxy Note 2 w/ CleanROM 4.0.5
Click to expand...
Click to collapse
My Sandisk 32 GB also had this issue. Can you expand on the steps you took to get Sandisk to replace your card?
Sent from my GT-N7105 using xda app-developers app

My 64 and 16 are both great. Only the 32 is having an issue. This seems to have a very high failure rate for a reputable chip maker...
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riprod said:
My Sandisk 32 GB also had this issue. Can you expand on the steps you took to get Sandisk to replace your card?
Sent from my GT-N7105 using xda app-developers app
Click to expand...
Click to collapse
Contcted through their website first, then called their customer service number for their site. It will go faster if you tell them it is mounting and un mounting in your phone and doing the same on your computer. Because my computer would register it, I they wanted to wait and see if it would fail on my mac. I believe the response to my online query through their site got me response to send it back. They sent me a packing label and everything.
Sorry to ramble, but go through their site and you will have a new one in about 7 days.
If none of this made sense, sorry, I'm tired. Pm me questions and I will do my best to be more clear. Good luck.
Sent using Galaxy Note 2 w/ CleanROM 4.0.5

I gave up and started to use Dropbox more. I'm not happy about it but it is what it is.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

I've been having this problem as well. I figured it was just an issue with the phone because the card works ekse where. One thing I've noticed is when it says the sd card has been removed I can go into my files and pull up what I need. I just can't go directly into the app to open it (I.e. gallery or music player).

Rockamakis said:
I've been having this problem as well. I figured it was just an issue with the phone because the card works ekse where. One thing I've noticed is when it says the sd card has been removed I can go into my files and pull up what I need. I just can't go directly into the app to open it (I.e. gallery or music player).
Click to expand...
Click to collapse
I have tried everything they suggest to fix it, multiple reformats, both internal and with a computer. Once it starts doing that, it won't stop. It's the card, not sure what, but it's just a bad card.
My new one is working fine, so far.
Sent using Galaxy Note 2 w/ CleanROM 4.0.5

What 64gb sd card is reliable

Need a new one. The card I have is corrupted in less than 2 weeks. What are u guys using?
NOTE 3

I have this one: http://www.amazon.com/Samsung-Elect...382814243&sr=8-1&keywords=samsung+64gb+sdcard
This is my second one because I lost the first one in the 2 days I had it Worth it IMHO. I had the 32gb version as well. Never had any trouble.

lm that guy said:
I have this one: http://www.amazon.com/Samsung-Elect...382814243&sr=8-1&keywords=samsung+64gb+sdcard
This is my second one because I lost the first one in the 2 days I had it Worth it IMHO. I had the 32gb version as well. Never had any trouble.
Click to expand...
Click to collapse
Lol that is the one that I just replaced now the giy is giving me a refund
NOTE 3

BACARDILIMON said:
Lol that is the one that I just replaced now the giy is giving me a refund
NOTE 3
Click to expand...
Click to collapse
Really, how did it corrupt? Did you pull the card before anything was done transferring?

lm that guy said:
Really, how did it corrupt? Did you pull the card before anything was done transferring?
Click to expand...
Click to collapse
No I place music files and pics and when I reboot some of the music or pics are gone
NOTE 3

BACARDILIMON said:
Need a new one. The card I have is corrupted in less than 2 weeks. What are u guys using?
NOTE 3
Click to expand...
Click to collapse
I am using this one http://www.newegg.com/Product/Product.aspx?Item=9SIA12K0DC0210 Make sure you buy from IC Pro if you geti. I have had ir for awhile now and have no problems.

I've been using the Sandisk 64GB Ultra with no issues, also had no issues on the Note 2 but the Samsung 64GB is probably more reliable given all the complaints with the Sandisk on the Note 2.

Kawaisa said:
I've been using the Sandisk 64GB Ultra with no issues, also had no issues on the Note 2 but the Samsung 64GB is probably more reliable given all the complaints with the Sandisk on the Note 2.
Click to expand...
Click to collapse
I am so screwed. Had 2 sandisk and the samsungcard to. I cant be losing my stuff. So stuck
NOTE 3

Scan disk 64gb micro sd ultra from amazon.. Got it for 34.99
Sent from my SM-N900T using Tapatalk

San disk 64gb sdhc...I've had mine for more than a year without a single hiccup

sandisk is better:laugh:

I have 2 of those fried. Scared to shell outmore money and have it not work
NOTE 3

Definitely sandisk... been using it for some time now not one issue

SanDisk here as well used on Note 2 and now on Note 3 with no issues for 8+ months

I too am using a 64GB Sandisk Ultra, first on my HTC and now on my Note 3 with no issues, though I did format it to FAT32 instead of using exFAT before using it on my HTC & left it that way for my Note 3.

PNY makes great cards with reliable speed. I have a 32 GB not sure if they make 64 but I would look into it. I was one of the people with a corrupt sandisk card on the note 2 and the PNY replacement worked wonders

derichio02 said:
PNY makes great cards with reliable speed. I have a 32 GB not sure if they make 64 but I would look into it. I was one of the people with a corrupt sandisk card on the note 2 and the PNY replacement worked wonders
Click to expand...
Click to collapse
+1 I know, i have an older 8GB PNY Class 4 that writes at 16MB/s and reads at 20MB/s.

BACARDILIMON said:
Need a new one. The card I have is corrupted in less than 2 weeks. What are u guys using?
NOTE 3
Click to expand...
Click to collapse
Like you I also had a 64gb card that corrupted. I got it at what I thought was a good deal, obviously the card was crap. Now I only buy the SanDisk cards (red and gray ones). On the package of the SDcard, look for a circle with a number inside it (sometimes it's on the SDcard itself). That's the cards class number. Don't know what it means really but you want class 10 cards.
I'm never going the cheap route again.
Sent from my SAMSUNG-SM-N900A using Tapatalk

Yep, San Disc 64. Got mine at Price Club for $54 and change.

Class number is write speed. Class 10 means 10MB/s or better.
Sent from my SM-N900T using xda app-developers app

Micro SD Cards and Early Failure on the Note 3

Morning,
Purchased a second Lexmark 16gb SD card for my Note approx 2 weeks. Randomly picked my phone up yesterday and noticed there was some kind of warning on my status bar, went to check it out and it related to some kind of memory card issue or failure. I don't recall exactly what it said, but I do know it pointed to an issue with the card.
Now the reason for my post, I'm not sure what the odds are on two SD card failures in a three week time frame, but that's what I've just encountered and was interested in finding out if it's a more widespread issue, or just plain bad luck on my part
I had one 16gb card for my Note 2 with zero issues, now I've gone through two on my Note three in just over 3 months. Yes the card is fried as my desktop doesn't even see it when I plug it in via USB adapter.. Just in case you're wondering if I checked it elsewhere..
Sent from my SM-N900T using XDA Premium 4 mobile app

Try formatting it via your phone. This should always be the first step b4 using it on anything. Could just be a faulty usb adapter too try another card reader and or different pc/adapter.
Sent from my SM-N900T using xda premium

after my S3 having problems with micro sd cards, i have stopped using memory cards entirely for any samsung products. They tend to fry the sd card every few months.

I've had a 64 Gig SanDisk since I bought my S3 zero problems. It's made it thru my s3 note 2 and now the n3 So I guess it's just hit or miss. Sorry Steve that sux dude
sent from my ??????? note 3?

I had the same problem you've described with a 32GB SanDisk card, my phone kept saying the card was unexpectedly removed, then it would re-mount the card. The most annoying side effect of this issue was it caused a lag with turning the screen on, it would literally take 3-4 seconds for the screen to come on after you pushed the button. Replacing the card solved this immediately. We'll see how long the 2nd card lasts.

hfuizo said:
I had the same problem you've described with a 32GB SanDisk card, my phone kept saying the card was unexpectedly removed, then it would re-mount the card. The most annoying side effect of this issue was it caused a lag with turning the screen on, it would literally take 3-4 seconds for the screen to come on after you pushed the button. Replacing the card solved this immediately. We'll see how long the 2nd card lasts.
Click to expand...
Click to collapse
Yeah, that pretty much describes exactly what was going on. After I seen the original sd card warning my phone got really laggy and wouldn't even boot into recovery. Remove it and everything is fine..
Every now and then I like to completely format, which is why I like having the Ext SD card, but not if I keep having to toss 30-40 bones down the tube every couple of months..Kinda lame, should have kept the damn receipt.. lol
Sent from my SM-N900T using XDA Premium 4 mobile app

deeznutz1977 said:
I've had a 64 Gig SanDisk since I bought my S3 zero problems. It's made it thru my s3 note 2 and now the n3 So I guess it's just hit or miss. Sorry Steve that sux dude
sent from my ??????? note 3?
Click to expand...
Click to collapse
Lucky bashterd....
The one I pick up today is going to be my lucky one, I can feel it... The memories we'll share together..
Sent from my SM-N900T using XDA Premium 4 mobile app

Just had this happen to me today on a Verizon Note 3.
SD card completely dead. I wasn't even using it...AT ALL! Will not recognize on my laptop using the SD card slot.
Battery was heating up & draining too. Crazy! Over a 3 minute period I watched the battery percentage drop 4%-5%
Oh well. Why do these devices "eat" SD cards?

I encountered the same problem a year ago with my Note 2. Fortunately it wasn't the card. I was using a custom kernel that didn't recognize the FAT 32 I had the card formated to. SInce going back the stock kernel, I've had zero problems with the SD on my N2 or N3. Anyone using a custom kernel?

deeznutz1977 said:
I've had a 64 Gig SanDisk since I bought my S3 zero problems. It's made it thru my s3 note 2 and now the n3 So I guess it's just hit or miss. Sorry Steve that sux dude
sent from my ??????? note 3?
Click to expand...
Click to collapse
Same here. Mine went thru Samsung tablets as well. S3, S4, N2, N3, Galaxy Tab 3 8.0

Lol 4th one. SanDisk sucks. But lifetime warranty. They keep replacing.
TWEAKED N3

Lexmark isn't the greatest brand of SD cards. I generally only use sandisk or Lexar and I've never had a problem.