yashsingh1/xdaforums huggingface dataset:
[T-Mobile Samsung Galaxy Note II] happycactus:
bildsp for

Trascend class4 32Gb SDHC card, dead after 4 months.

It's a widespread problem, not related to one specific brand.

In my humble opinion, it's a samsung responsibility.
[T-Mobile Samsung Galaxy Note II] Aria807:
I had a SanDisk 32GB gray/red one. It crapped out in my GS3. I got a replacement for it from warranty and I ordered a Transcend 32GB in it's place. Used that in the GS3 and I changed over to a Note 2. I figured GS3 and Note2 would have the same issue.

However. what I did differently this time around is to not charge the device via the comp/usb mount and just directly wall charge it @ work. Before when my SanDisk would crap out a lot, I basically always used the laptop to charge. So everytime I go to the bathroom, lunch, etc... I'd unmount and then remount when I get back. I think that's what's killing off the cards. I've been using the Transcend 32GB for about half a year and no problems now.
[T-Mobile Samsung Galaxy Note II] angellsl:
I had that problem before but it is fixed but I don't know how
[T-Mobile Samsung Galaxy Note II] nishu3588:
Samsung Galaxy fault is caused by SanDisk memory cards

.

:good:

http://crave.cnet.co.uk/mobiles/samsung-galaxy-s3-fault-is-caused-by-sandisk-memory-cards-50010684/

SanDisk has owned up to microSD cards causing problems with Samsung Galaxy phones and tablets. S3 owners and owners of other devices, including the Galaxy Note, report cards failing in both their phone and computer. Even worse, some cards continually disappear and then mount themselves over and over again, draining the battery without you realising it.

The problem affects "a very small percentage of 32GB and 64GB SanDisk Mobile Ultra microSD cards," says the memory card manufacturer. Various forums have reported the problem, including the official SanDisk forum.

"Under certain circumstances the cards may lock up and the card becomes inaccessible," SanDisk continues, adding, "the issue has been identified and a manufacturing fix has already been put in place."
[T-Mobile Samsung Galaxy Note II] neverover:
Problem solved.. A little bit..

Hi guys,

I've been having this kind of problem for almost a year now. I actually use the general unlocked version N7100, not T-Mobile to be specific. And already used:

- Sandisk Ultra 32 GB

- Sandisk Ultra 64 GB

- Team Class 10 32 GB

Every one of them are being constantly ejected and get replaced twice by each respected service center. Still, the issue persist and I highly think this is due to Samsung fault. So I put them on Samsung Service Center, got the Micro SD connector replaced, and no more ejecting for me.....

....

....

Well, for at least two months. Then the whole electronic blocks got replaced, and still on the table in the service center, the micro SD is started to acting up again. So I let the phone to be serviced again with the micro SD card to be checked (which is 27 GB full out of 28.9 GB). And turns out, the same issue persist at Samsung Galaxy S3, Samsung Galaxy Note 2, and Samsung Galaxy S4. All of them are acting up, even when the technician tried to use another 32 GB Micro SD with my data copied on it. Same thing happen.

So what they did, is that they are blaming that my SD Card is filled with (allegedly) many virus or corrupted files. Which is totally silly, because they think my Computer doesn't scan for viruses or I would simply accept that. But for reference, this is what I have in my phone:

- Music that is iTunes-synced by Play Store program called iSyncr ( 9 GB)

- ROMS for PSX in emulator FPSe (7 GB)

- ROMS for GBA in emulator My Boy! (1GB)

- ROMs for SNES emulator SNES something (insignificant)

- Movies HD on 720p and 1080p (8 GB)

- Photos (2 GB)

I understand if there supposedly would have been some lagging to access nearly full external memory, but they would simply JUST LAG. Not ejecting it on a constant basis on a 3 different high-end flagship phone. This would be hardware-software issue, because in the end the card will be broken when it keeps on ejecting the Micro SD. Not to mention I run all the legitimate apps I got from the Play Store.

I am aiming for a refund, and for that they need some proof that the problem was not due because of the "corrupted" files in my Micro SD. Well, I'm going to proof them alright, I will not rest until they get the proof and I get the refund...

But seriously guys, this is a big issue that should have made to Engadget or Android Central headline. This is a very major issue affecting all Android with Micro SD slot (last time I check, people in Xperia Z forum are having the same problem)...

I was wondering what kind of files do you guys all have when your Micro SD was keep ejected by the phone? And how many gigs are full? You should ask for a refund, guys. This a big major issue plaguing many phones.
[T-Mobile Samsung Galaxy Note II] vilhoke:
For me, the problem was at least partially mechanical

I too had the unmount/mount problem on my N7105 with Sandisk 64 GB microSDXC and a Nokia 32 GB microSDHC since updating to 4.1.2.

I tried RMAing the Sandisk card, Samsung service (they changed the entire chipset), and flashing Perseus Kernel. Nothing seemed to work for more than a short while.

A couple of weeks ago I noticed, that an electric contact fault between my phone and microSD card. A very slight finger press at the back cover of the phone near to the location of the microSD socket was able to disconnect the card. This often happened to me, when taking the phone from my pocket.

I too have had unmounting occuring even when not touching the phone.

A couple of days ago I cleaned the connectors of the microSd card with alcohol (80% Estonian :D) and made a wedge from a folded piece of paper in order to stuff the card securely in its place. I have had no unmounts since then.

The paper wedge is not very orthodox, but it seems to work. I don't know, if it could cause any overheat problems :confused:

So I recommend trying, if your problems could also be (at least partly) caused by bad electric connection.
[T-Mobile Samsung Galaxy Note II] neverover:
Wow, that really works for you? It's good, then.. My technician back at Samsung Service Center just confirmed that the problem caused by many 1080p and 720p movies. When it waking up from sleep (which is one of the main trigger as stated on previous post), the gallery/video apps need to re scan for the whole gif-like thumbnail. But at this point, I was so certain to not to care. I just asked for refund since there was no solution or replacement from Samsung that could work. I am now back with my old and reliable iPhone 4S.
[T-Mobile Samsung Galaxy Note II] ce3jay:
Can anyone confirm which cards are working? I don't want to go out and get a new card just to get random unmounts. I too have the red and grey 32gb sandisk.

My card does work, but I need wakelock app running, which drains my battery.
[T-Mobile Samsung Galaxy Note II] titooo7:
I honestly don't think it's a problem with SanDisk microsd cards because it also happened with G.skills and Kingston cards (at least).

It must be a problem caused by directory bind (in case everyone having this problem is using this app) or Samsung's fault.

It's really sad. Right now I'm using my Note 2 without any microsd card because I'm afraid to buy another one and having the same problem....
[T-Mobile Samsung Galaxy Note II] ce3jay:
I disagree. It happens with all of my SanDisk cards. I have the older class 4 black ones, 8 gig and a 16 gig. My 32gb that I stopped using also unmounts itself in my TF101.

I still refuse to by anorher sd card because of this issue
[T-Mobile Samsung Galaxy Note II] randasecret:
My note II killed sandisk 32gb uhs-1 and the only sdcard working properly now for about 8 month without a single issue is Adata 16gb class 10
[T-Mobile Samsung Galaxy Note II] gibralter24:
SGS4: SD Card Unexpectedly Removed.

Im using a Samsung Galaxy S4 and in it a 32GB Ultra Sandisk Class 10 SD Card. The SD Card was working fine since the day I bought along wth my SGS4 i9500 about 6 months back. SGS4 came with Android v4 when I first got it and subsequently I updated the firmware to v4.2 with no issue whatsoever. It is only when I updated to Firmware v4.3 when messages started to pop-up like "SD card was Unexpectedly Removed" and then Remounted automatically without any reason. Thinking that it might be some bug/virus I formatted using phone's inbuild tool but that didnt solve the problem. Now I cant figure it out exactly where the problem lies, is it the set or the SD Card. Help will be appreciated guys.
[T-Mobile Samsung Galaxy Note II] internetpilot:
It's likely a combination of both. SanDisk has admitted they had problems with their cards but I think it's also proven by this thread that a lot of those problems are in combination with Samsung devices. That being said I have yet to have a problem since I switch to a genuine Samsung 32gb card. I'm about to put a Samsung 64 GB card in my Samsung Galaxy Note 10.1 2014. I'll post the results on that in a couple weeks of use.
[T-Mobile Samsung Galaxy Note II] k1ng617:
I agree. I had a real SD card issue which Sandisk did confirm, but it was actually masking the hardware issue with the phone. Even with my new card for the past few months it would still unmount periodically. But just right now when I put the phone down (not hard either and I do have a case on it) the sdcard unexpectedly removed. I just tried to duplicate it after it remounted by holding the bottom of my phone and lightly swinging it downward onto my hand and it did it again and again! Keep in mind I'm not saying swing it hard. Just lightly was enough to trigger the SD card to remove. Funny thing though, I just past the one year mark I bought this Nov 18th 2012! :eek: Which means I am officially out of manufacturer warranty :crying:
[T-Mobile Samsung Galaxy Note II] wbd:
Well, after many months being convinced that the unexpected ejecting issue lay with the firmware (v4.1.2), and waiting for a new fw release for my Galaxy S3, today I updated to v4.3, with the hope that the problem would be resolved.

Alas it was not to be.

At least running the WakeLock app has been an acceptable workaround, which I will continue to use until a more substantial solution is proven - it has never been a noticeable drain on the battery and it prevents the vast majority of the unexpected ejections of my SD Card.
[T-Mobile Samsung Galaxy Note II] internetpilot:
Excuse me as I reply to myself... :D

It's almost been a month now since I first put the Samsung 64GB SDXC card in my Samsung Galaxy Note 10.1 2014, and I have had zero problems with card ejections. However, I do not have a history of card ejections with this new tablet, so it doesn't really prove anything I guess. However, since putting a genuine Samsung 32GB card in my Samsung Galaxy Note 2 phone, I have not had any card ejection issues and I do have a history of that with this phone and SanDisk cards.

FYI, my "problem" 32GB SanDisk card is still working perfectly in my GoPro knock-off camera that I use for kayak fishing (where it gets fairly physically abused), so I still suspect that it is a combination issue of the device hardware and SanDisk cards.
[T-Mobile Samsung Galaxy Note II] server5:
My 32GB class10 A-Data SD card went 'bad' or self corrupted on my stock SGNote2 after 50% of the card was filled. I did not have a backup or cloud setup. The card was used for about a year without incident and never removed or unmounted. The only thing that changed was upgrading to v4.3 unrooted.

This is the second time this card failed. First in my car's usb mp3 reader, and now on my note2! One card was 16gb and the other 32.

So after reading through the entire thread and considering all the differing theories, one theory has not been mentioned. COUNTERFEIT MEMORY.

I remember watching a documentary on tv about the military receiving COUNTERFEIT memory chips sourced directly from the manufacturer! This is a huge problem because consumers are clueless. By the time you purchase, use, experience a problem, enough time has passed and most people just figure that the hardware was the cause or just toss it out and buy a new card. And the cycle continues. The problem is so bad because the pakaging is perfect and you would never guess. From my own experience, most fail after half the capacity is used. Most people who buy 32Gb slowly fill them up, but if you tried to fill the card to capacity when new you would know soon enough... genuine or counterfeit. The problem of self dismounting cards might be unrelated to counterfeit cards but this problem is not going to go away.

A new protocol is needed for memory manufacturers that allows the consumer know 100% that the product they buy are real and not real crap!

After trying three different software recovery apps, i have concluded that this is a hardware recovery only option. I am now considering a recovery service that is not cheap!

https://www.youtube.com/watch?v=y-jrzsaT6ls
[T-Mobile Samsung Galaxy Note II] creepers28:
any solutions?

Been trying follow the whole thread....

Please correct me if I missed anything ...

All these possibilities has been discussed but none concluded to be the root issue

- SD card (Sandisk, Kingston, PE etc) manufacturer problem

- Loose micro ribbon/adapter connecting SD card

- Samsung Android screen wake up (code issue)

- Internal Android issue

- Depending on type of files stored

- Digital Rights Management

I am beginning to think that that this is Google, Dropbox, Samsung and all the other Big Player's master plan to force us to use their 'CLOUD' vs external storage.

Possible Fix(s)

*All of which either does not work or miraculously worked for some*

- Insert folded paper with SD card (making it tighter to hold)

- switch on protect SD card under developer options

- settings > storage > Unmount card and mount it back on

- Format card

- Change to FAT32/ExFat

- Factory reset phone

- Restart phone

- Throw phone on the floor and stomp on it

- Burn it and watch it depart to hell

- Call Samsung 1-800 and hear them bulls**t you saying it's not my problem, I've already made my money

- Call Google and get no response

- Vent on XDA and get no replies

Above all choose Peace and Love and sleep peacefully like a baby!
[T-Mobile Samsung Galaxy Note II] totolagrutta:
Ive noticed mine works if I push it all the way in and hold it there with my finger but thats obviously not a solution lol.

I guess ill try the paper method, anything else that could be possibly tightened up to help?
[T-Mobile Samsung Galaxy Note II] creepers28:
Got it!

:D So here is what I did and it is working ... so far 2 days and counting, would update if problem comes back or persists.

Go to Settings > Developer Options and scroll all the way down to Do not keep activities and put a check mark there. And additionally Limit background processes .... I selected no background processes but you can play around to set to your needs.

It's working and I hope the problem does not arise again. I'm currently using a scandisk 64 gb card with all sorts of media files. (mp3,mp4,jpg,gif,pdf and so on)
[T-Mobile Samsung Galaxy Note II] creepers28:
.... Problem is back...

I restarted my phone for an unrelated issue. And BOOM*** the problem came back from the grave. Now it's very random with the settings I recommended. It works and sometime goes out. It's not as bad as before but yet not permanently gone...
[T-Mobile Samsung Galaxy Note II] Stopfakn:
Didn't want to start a new thread. I'm having a weird issue. I take picture or video, it saves to gallery just fine but when I open gallery I see corrupted images. It says unsupported files. Any help?
[T-Mobile Samsung Galaxy Note II] ThePooBurner:
I am also having an odd issue. I downloaded a DPI changer app from the play store, changed my DPI to 270, rebooted, saw it caused problems with certain things, changed it back, rebooted, and now the SD card claims to be unformatted. I tried rebooting again; powering off, taking card out, powering on, powering off, putting card back in; but neither of those worked, so i took the card out to be safe. i'm hoping i haven't lost anything from the card. It had my backups on it. It's a 64gb SanDisk Ultra XC card. It's been in the phone without any issue for a year. Any advice? the program used was texdroider_dpi.
[T-Mobile Samsung Galaxy Note II] creepers28:
makes me wonder.... :confused:

Same 64gb Sandisk card that my GN2 wouldn't read but did read after developer options (per my instructions above post) changes... didn't in my old Note 1. It said blank card. Since then I've sold my GN2 and got Sony Ultra Z and it reads the same card just fine. No issues.
[T-Mobile Samsung Galaxy Note II] kruzae:
sandisk 32gb

Just wanna report my sandisk 32gb red gray had the same problem. I think this particular card is not compatible with our note 2. Right now I'm considering another brand.
[T-Mobile Samsung Galaxy Note II] Dejaaaan:
I had the same problem on Alcatel POP C5 with Kingstone 8GB micro sd class 10 card. First i thought that the problem was with the phone. Then after replacing whit another, borrowed card, the phone was working normal again, so i concluded that it was the bad sd card.

Using Wake Lock - PowerManager with PARTIAL_WAKE_LOCK enabled did solve the problem, partialy. I wanted the permanent solution so i keep trying to solve the problem.

The first time I realized the card was unmounting, when phone was on standby, was this summer when outside temperatures excided 35°C. I thought if hot temperature coused the problem it might be also the solution to it.

First i took my soldering iron and heat all micro sd card metal contacts for approximately 10 seconds. After that the phone was not unmounting the card for 20-30 minutes, but than it started showing error messages again. Then i heated each contact, once more, for 2 minutes. The card was too hot to touch it with my hand, and I was worried not to melt the plastic. After that intervention the card did not melt, all of the data was still on it and the card is working in my phone for 2 days now, without unmounting.

I hope that this is a permanet solution and that will help someone else too.

Just to say that I am not responsible if someone damage their card or data attempting to do this. DO IT AT YOUR OWN RISK!!!
[T-Mobile Samsung Galaxy Note II] stevessvt:
If that doesnt work I would odin stock rom and factory reset. If that dont help then maybe time to replace the phone.
[T-Mobile Samsung Galaxy Note II] limpysmalls:
Should you really have to Odin a phone that has not been rooted or messed with in any way other than signing into your Google account and installing apps from the market? I know that bad devices go out so I am not holding it against Samsung or T-Mobile, I am just not going to put much more effort into this. If you are going to put an SD slot on a phone it better work.

The strange thing is it is just saying the Card has been removed, not actually removing the card. I was listening to music on the phone while working on my car today and the message "It is now safe to remove your SD Card was displaying in notifications for over 2 hours with the music from the card still playing. It may not be an issue at all since the card has always been available when I try to access it no matter what it might say in the notifications bar.

If this doesn't fix it I will be visiting my friends at the T-Mobile store to raise some hell because a refurbished phone will not cut it.

Fingers are crossed
[T-Mobile Samsung Galaxy Note II] stevessvt:
Well, I'm just that way. I try everything possible before giving up. The only thing I can think of at this point is bad driver. If you get a replacement phone your going to have to set it up again anyways. FYI, my sd card reader just upped and quite working this week, and I got a replacement, and as far as I can tell, it's a new phone. Maybe it isn't, but cosmetically speaking, it looks perfect.
[T-Mobile Samsung Galaxy Note II] limpysmalls:
Well it worked for an hour before acting up. Time for the un-fun part of this process.

In the past with my phones I would go the extra mile but with the cost of phones now I want some service to go with them from T-Mobile. The guy took for ever getting me the phone also. I was there 2 hours while he set up my account from Classic to value and was still not done when the movie I was there for was about to start. I went to the movie and came back and still had to wait another hour for them to finish everything so I could leave. I was about to just say screw it and not get a new phone. My SII was running great so I really didn't need the note 2, just wanted it.

I might go down there tonight to see what I can get done.
[T-Mobile Samsung Galaxy Note II] limpysmalls:
Of course it was acting fine when I went to the T-mobile store yesterday.

Now it is getting worse and saying the SD-Card is damaged no matter what card I put in.

Hope it keeps it up when I go down there today.
[T-Mobile Samsung Galaxy Note II] William_KM:
Samsung Galaxy Note II - Having the same issue with Micro SD CARD

:eek:

Please let me know how your trip to T-Mobile went.

My wife and I bought a Samsung Note 2 last month and both of us bought and have installed a Sandisk 32GB Class 10 Micro SD.

Last week, within a day of each other, we started encountering the following EVERYTIME we use our phones:

SD CARD UNEXPECTEDLY REMOVED

REMOVING SD CARD

PREPARING SD CARD

It happens when we wake it up from being asleep, and randomly during using it.

I can't find any reason why it is doing this.

We have saved everything off of the SD Micro Cards, and reformatted, yet the same issue persist - have you found a solution yet?
[T-Mobile Samsung Galaxy Note II] limpysmalls:
I have not found a solution yet. Decided to go see the Hobbit instead of hanging out at the T-Mobile store. It doesn't happen every time so showing it to the folks at the store could take awhile.

I have the exact thing happening. It seems to get better for an hour or 2 after a format but always comes back in the end. Going to try a few more things today.
[T-Mobile Samsung Galaxy Note II] kpursuer:
It seems the device corrupts certain kind/class of 32gb or above sd cards. I had similar issues and am fine with a 16 gb one for weeks now. I am surprised this issue has not trickled up and hasn't received much attention.
[T-Mobile Samsung Galaxy Note II] iunlock:
Always Fat32 ..... Never do ExFat for phones.

Edit: This is true for older phones, but with the Note II, it supports exFat. Although the SIII is new, it will crap out or not even work with exFat.

---------- Post added at 10:55 AM ---------- Previous post was at 10:48 AM ----------

The opposite can be said for those (the majority) who love Touchwiz. IMO it is the most balanced UI for any phone. Great for beginners and great for geeks like most of us who love the flexibility.

---------- Post added at 10:56 AM ---------- Previous post was at 10:55 AM ----------

Never format ExFat .... Always Fat32.

Edit: This is true for older phones, but with the Note II, it supports exFat. Although the SIII is new, it will crap out or not even work with exFat.

---------- Post added at 11:34 AM ---------- Previous post was at 10:56 AM ----------

+2 !!!!

Formatted Fat32 before putting in the phone then formatted it again with the phone.

Cherry.
[T-Mobile Samsung Galaxy Note II] OwenW71:
I asked this before, but it might be worth mentioning again. I noticed that nearly all of the cards affected are SanDisk. Has anyone seen this issue with a Samsung card?

Swyped from the closest Galaxy.
[T-Mobile Samsung Galaxy Note II] Jerry D:
What I have noticed is that most people having issues have a 32gig SanDisk. I am using a SanDisk 64gig (class 10) and haven't had any problems. I took the card out of the packaging and inserted it into my phone. No formatting.. I am stock/rooted with only a little bloat removed.

**EDIT**

I forgot to mention that my sdcard was for Android Phones. It had the Android Robot on the packaging ect.