yashsingh1/xdaforums huggingface dataset:
[T-Mobile Samsung Galaxy Note II] wuyuepak:
I have been suffering from this issue for 1 week now. Just found out about this thread.

I'm using Omega ROM v10 on my Note 2 GT-N7100.

SanDisk 32GB for my memory card.

I have reformatted my memory card twice, reflashed my ROM, wiped all data, removed the script that allows me to use my SD as internal storage.

And still it keeps on unmounting and mounting randomly.

So I guess it's a hardware problem.

I saw twistedskater68's post from http://xdaforums.com/showthread.php?t=2035854 that says:

"THE FIX

Turn off phone, remove the battery, SIM card and sd card. Remove all screws except the one by the 3.5mm jack. Gently pull the white plastic trim that surrounds the card holders and battery but the top part with speaker and camera does not need removing. Once removed if you look to the left of the sd card holder you will see the ribbon that connects the sd card to the main circuit board and at the end of the ribbon is the connector. Mine was disconnected and was loose, even if yours is not loose it would be worth gently pulling it off and reconnecting it. Then reassemble in the reverse order.

This was a nice surprise in the sense it was a very simple fix. However when I mounted the sd card even directly in my pc it was not found, I assume that the loose connector floating about had probably shorted its connections and caused an issue with the sd card. After a handfuls of attempts at mounting it in my pc it was finally detected and I backed up all the data and reformatted the sd card, then copied the data back,mounted it in my phone and was happy to find it all working as expected."

Anyone tried this yet?

TIA
[T-Mobile Samsung Galaxy Note II] bastienvans:
I may have found a solution. It's now been 5 days and I haven't seen the error message so I've decided to post. *crosses fingers*

SD Card: Sandisk Ultra 32GB Class 10

ROM: Stock, rooted 4.1.2

Device: International Note 2

What you need: SD Card adapter, SD Formatter

Simply download SD Formatter from here and do an "Overwrite Format". It will take about 2 hours for a 32GB card. Don't try selecting "Quick format", it won't work. Obviously you will lose all data on the card so back it up.

I've also changed a few settings in the phone that might have had an effect but I can't be sure.

- I have enabled "Protect SD card" in Developer options.

- Stock Browser->Settings->Advanced->Default Storage set to Device. (If you do get the error message after a while and your card gets rescanned, this option will be changed to "Memory" and you'll know your device took a crap over night.)

Prior to this, I had tried formatting the card (both FAT32 and exFat) within the device itself, CWM, Windows, Mac and Linux but nothing had worked.

Hope this works for you. :)
[T-Mobile Samsung Galaxy Note II] alinosa:
To the people that have a class 10 32GB Sandisk card: are you using the black class 10 card or the gray and red class 10/UHS-1 card? I had the latter in my Note II (albeit from AT&T) and after roughly a month of usage (movies/music/photos from camera) it started throwing the above mentioned errors then just died. I was able to return it to Amazon for a credit, but am still uncertain of what to buy to replace it. I hear good things about the Samsung card but....?

So, for the people that still have a good card, is it the black one or the gray and red?

And for the poor folks experiencing failed cards: same question. Was it black or gray and red?

Thanks!
[T-Mobile Samsung Galaxy Note II] limpysmalls:
I am on the stock ROM with no root. I was using a grey and red SanDisk 32gb ultra. It is currently out to SanDisk for RMA. It died completely after I tried using SD formatter with a full overwrite a couple of weeks ago.

Have had a 32gb Kensington class 4 in for 2 or 3 weeks now with no issues.

My other SanDisk 32gb ultra that I had tried in this phonw also has issues. I only ran it for a day but it acted the same so I gave it to my wife for her Blaze 4g, started acting funny in that phone after 2 days of use. Then I gave it to my son to use in his S2. It has acted funny 1 time but works fine 99% of the time. I may RMA it once I get my other one back.
[T-Mobile Samsung Galaxy Note II] C_Romain:
@bastienvans +1

I have made a full format in windows (not the quick one) on my 32go Sandisk Class 4. It took long time, around 3 hours.

I made it last Friday and still no problem with my card after 4 days!

So far so good, battery not drained anymore, no more "preparing SD card" messages...
[T-Mobile Samsung Galaxy Note II] Rhiannon224:
I received my Samsung class 10 32gb card today and my device is now working as it should. Battery is back to normal, no more sleep issues, no more sd card removed messages. I love my phone again :D
[T-Mobile Samsung Galaxy Note II] KBone25:
Well... after 10 weeks of perfect operation, my 32GB SD card decides to throw this up at me :crying:

Is Samsung the only card that is known to work properly?

What about the Kingston ones?
[T-Mobile Samsung Galaxy Note II] stevessvt:
Ive noticed that when this happens my windows computer can still read the card, so I transfer everything in to a folder on the pc, format the card, and transfer everything back. Then the phone reads it fine again.
[T-Mobile Samsung Galaxy Note II] ericshmerick:
My Note 2 killed my SanDisk 32gb Ultra. Wont mount on any device. RMAd and a new one is on the way.

This is the first time I've ever lost a memory card. I believe the phone is at fault here.
[T-Mobile Samsung Galaxy Note II] jarablue:
Same here. Mine has been doing this for the past 3 days.

I wonder if it was some update that did this. Hopefully the new SD card doesn't fry in this phone.
[T-Mobile Samsung Galaxy Note II] Rhiannon224:
Mine started before the update, I don't think it's the update.
[T-Mobile Samsung Galaxy Note II] stevessvt:
Is mine the only one that that read fine on a windows computer after one if these events? Ive had it happen 3 times on the same sd card. All 3 times it read fine on my computer.
[T-Mobile Samsung Galaxy Note II] jacky37:
This is my second Sandisk 32gb card too that is giving me the same problem you guys had. Got the second one in December last year and just went to best buy to exchange a different micro SD card that is on sale at Best Buy. It's pny brand and they allow me to exchange it. Hopefully this card will do a better job than Sandisk
[T-Mobile Samsung Galaxy Note II] Paulb_:
Same here with a Sandisk class10 in a S3. Card must first be mounted after screen on. Reformat did not sole it.

Does anybody know if this can issue can be avoided with a different custom rom, kernel or firmware? I seem to have the issue since I flashed a new recovery to protect me from sudden death, but this can be a coincedence.

The other option would be to rma this card.
[T-Mobile Samsung Galaxy Note II] SlsAustin:
JDEVIL roms seems to like all cards. Those Roms and simple and fast. I went back to my old school 16 card. Most custom roms and kernels lately dont agree with bigger ccards for some reason
[T-Mobile Samsung Galaxy Note II] Paulb_:
Thank you, I'll look into that.

Too bad tho, I quite like Omega.
[T-Mobile Samsung Galaxy Note II] cobraboy85:
I actually figured out how to fix this issue about a year and a half ago...

I stopped buying sandisk cards.
[T-Mobile Samsung Galaxy Note II] DeathmonkeyGTX:
This isn't limited to Samsung phones. It's doing the same thing with my Sandisk gray and red 64GB Class 10/UHS1 card in my LG Optimus G (AT&T). No amount of reformatting or chkdsk will permanently fix it. It seems that my years of Sandisk flash memory purchasing has finally hit a snag, and as such I just RMA'd my card and shelled out for the Samsung equivalent. I'll see how that goes and if it goes for a couple weeks without pooping itself I'll stop by here and mention it.
[T-Mobile Samsung Galaxy Note II] jarablue:
This is also happening on my nephews Galaxy S3.

I am starting to think an app/update did this.
[T-Mobile Samsung Galaxy Note II] hamidoo:
SOLVED for me!

I have this issue yesterday, and it was killing my battery!

Everytime I unlock the phone, I get this silly message!

My solution is:

Backup all your data on the sd card.

Format the sd FROM THE PHONE

Copy back your data to the sd card
[T-Mobile Samsung Galaxy Note II] kingcarlo12:
Go into goo manager hit menu and install openrecoveryscript. Seemed to solve this problem for me.
[T-Mobile Samsung Galaxy Note II] Neon273:
Samsung Galaxy Note 2 - SD Card issues

Howdy.

Love this phone to bits.

Had it for 2 months.

Fantastic.

So fantastic in fact, that I urged my co-worker to get one. She bought it, loved it, thanked me ;)

Two weeks into owning the phone she begun to experience problems with her text messaging... then her SD card died.

I got scared, but kinda felt a sense of "PHEW!" rush over me since my phone was still ok.

This afternoon I got the dreaded 'SD card unmounted, mounting...' message again and again and again...

This evening, my SD card won't work. Phone does not see it, can't format it, I mean... nada!

The SD card works great in the card-reader in my PC, beats me.

I tried all the recommended fixes, even some witchcraft... no luck :(

I'm using the G-Skill 32GB Class-6 SD Micro Card.

I love this phone so much, and will try to get it swapped-out. If that does not work, I'll just have to live with the internal 16GB. Sigh, it's a really powerful phone around the office.

~Ed
[T-Mobile Samsung Galaxy Note II] bastienvans:
Can you elaborate on that please? How long has it been?
[T-Mobile Samsung Galaxy Note II] Rhiannon224:
No need to replace the phone, just get a Samsung card and you'll be good.
[T-Mobile Samsung Galaxy Note II] tabashir:
I started to get the same issues after about 6 weeks of having the card. It is the grey/red UHS-1 one that came bundled with the android software. It's been driving me nuts as battery has been horrendous as it keeps media scanning when it redetects the card and the ringtones stored on the card keep getting reset back to default.

I had backed it up yesterday with the intention of reformatting using windows then putting the files back on but it currently looks like it has given up working in the phone as it won't mount at all. I've tried a number of ROMs (wanam all versions between v2.1-2.7), mdoxified, omega, ARHD) all of them had the same issue.
[T-Mobile Samsung Galaxy Note II] Paulb_:
The resetting of the ringtones was also a rel pain. In the end I copied them over to internal but I still have the remounting going on all the time. At this moment I'm waiting for my files to be copied back onto the card after I formatted it from recovery. I hope that fixes it or else I will try to RMA it. Could be a problem to send back a card that's still working and a hassle so I really hope the phone format worked.
[T-Mobile Samsung Galaxy Note II] Neon273:
Samsung memory?

Thanks Rhiannon!

I will give it a try.

I can't see why this should be an issue: the phone should be compatible with any SD Micro card (providing it's functional), it does not say "use only with Samsung memory". I've owned dozens of smart Phones and Micro SD memory devices (cameras, phones, digital picture frames, LCD development tools, microcontroller development tools, TV's, tablets, GPSs, Laptops, Card-readers... respecting the correct implementation of Micro SD and Micro SD HC) ...used dozens of memory brands, and this is the first time I've had this issue.

Well, since I forked out $700.00 for a phone... forked out an additional $130.00 for 3 Samsung HDMI converters (NONE of which work well, I've given-up on that gimmick!) $28.00 on memory, I suppose another $38.00 can't hurt... this is fast becoming a money pit!

I was actually considering the Nokia Lumia 920 when I bought this device. I think I had a bad roll of the dice :rolleyes:

Nope, this is not a rant, I'm just highlighting all the delightful issues one might encounter with this phone.

~Ed
[T-Mobile Samsung Galaxy Note II] Rhiannon224:
@Neon273, I hear ya, it seems that there's a problem with SanDisk cards going bad, it's really a SanDisk issue. There's a bad batch going around and another option is to rma the card.
[T-Mobile Samsung Galaxy Note II] Neon273:
G-Skill

Quote from my first post:

"I'm using the G-Skill 32GB Class-6 SD Micro Card."

Might be I was just as unlucky with G-skill.

I'll try the Samsung brand, Class 10.
[T-Mobile Samsung Galaxy Note II] Rhiannon224:
Sorry, I missed that.
[T-Mobile Samsung Galaxy Note II] limpysmalls:
I got my card back from RMA yesterday. 24 hours in and so far so good. I am going to update in a few weeks after I give it sometime to f up.
[T-Mobile Samsung Galaxy Note II] Paulb_:
Update: Reformat with the S3 itself did not solve my remount problems. It even added messages that the card is completely empty.

Battery drains like craze the last few days. Will try to RMA the card.
[T-Mobile Samsung Galaxy Note II] vseslija:
I have a transcend 16gb card that worked fine for a year in my old phone. 2 weeks in my note and I am getting the error as well. I guess its not just sandisk cards
[T-Mobile Samsung Galaxy Note II] fueradeljuego:
same here, like everyone, sandsik card 32 gb class 10 purchased from Amazon in November, worked fine in my galaxy s2, the minute I bought my Note 2 and popped it in it started removing itself, remounting and eventually got fried.
[T-Mobile Samsung Galaxy Note II] Sidneymac:
Wow its a wipespread issue then because I notice it happening to me aswell. Not as frequent as others but 4-5 times per day I notice this warning. The sad part I guess its going to die soon then.
[T-Mobile Samsung Galaxy Note II] fueradeljuego:
oh, and since it fried I've put in my 16-gb card with no issues. Not sure what brand it is, not sandisk though.

We should try to create a list of plaintiffs.
[T-Mobile Samsung Galaxy Note II] imtjnotu:
I have an adata 32gb class 10 just die.. This is not just a scan disk problem this is a Samsung note 2 problem
[T-Mobile Samsung Galaxy Note II] vseslija:
Well thats really ****y. I would hate to buy another card just to have it fried. Jesus I shelled out $750 for this thing I shouldnt deal with this ;(
[T-Mobile Samsung Galaxy Note II] Sidneymac:
Exactly... we should get in touch with samsung about this.
[T-Mobile Samsung Galaxy Note II] krlosf:
same problem!

I have the same problem! 32GB SD SanDisc Grey/Red Ultra Class 10, after 3 months of use, a message "SD unexpectedly removed" is appearing everytime I wake up my phone, then one day "SD Card is damaged" appeared! I couldn't see any file of my SD card using the phone, but using an SD card reader in my laptop!... So I backed up and try different things without any luck! I've tried Formatting using SD Card program provided in the official web site, Tried formatting using the phone itself, using my computer, using chkdsk and... NOTHING!!!

But I just noticed one thing... the only momment when the phone doesn't show any message about "SD card removed" is when I'm using the SD card, I mean, listening music or watching videos. I wanted to try move some apps which are in use all the time to the SD card, just in case... but cuz I haven't rooted my Galaxy, I couldn't do it... So... Just to be sure is not a hardware or software problem of Note2, I will use another SD card and see what happens... and then, try to root my phone and move some apps that are in use all the time to de SD card, just to see what happens...
[T-Mobile Samsung Galaxy Note II] hamidoo:
Had the same issue with my S3.

Turned out that the SD card was dying, this caused it to be unmounted by itself and then mounted again (sometimes showing notification “sd card removed unexpectedly”), hence triggering the media scanning process.

I created an application to monitor how many times the SD card was removed, and turned out to be unmounted every ~3 mins!!!

I then bought a new Transcend 32GB Class 10 card, and until now, this never happens, no reports from the application whatsoever, and no media process eating my battery.

I just published this app in the play store now, this is the link:

https://play.google.com/store/apps/details?id=com.sdcardmonitor
[T-Mobile Samsung Galaxy Note II] Jerry D:
It seems to me that the biggest common denominator isn't the brand of card but the size. 32GB specifically.

I have been using a 64 gig class 10 SanDisk Ultra card for about 3 months with no issues. I have all my music, videos and TWRP backups on it. The card gets heavy usage..I never formatted my card just put it in my Note straight out of the box.
[T-Mobile Samsung Galaxy Note II] cobraboy85:
Has nothing to do with the size of the card. Sandisk is now classified as a terrible quality brand in my book. Used to use them religiously. Two in a row crashed on me. That was enough. I have had a PNY 32 GB class 10 now for almost 2 years. Been through various devices. Now my note II. Still no issues.

I would suggest purchasing PNY cards. Seriously.

Also, buddy of mine bought 2 32 GB sandisks about a month ago... the first one crashed in 2 weeks. So I doubt this is an issue with the devices. Sounds like sandisk is slippin a bit now
[T-Mobile Samsung Galaxy Note II] laloutre:
Hi,

thanks for the app. It helped me pointing out the now famous Sandisk red and gray problem (a 32gig model)

Using the sdcard.org format tool did not help

The app reads 3 bad removal in 3 minutes with this card when it stays at zero with my old Class 4 transcend 32Gig card...

For me the situation is not that bad, because I still can use with no problem the sandisk card on my Acer Tab

I really don't know wether the problem comes from sandisk or from samsung, but they are incompatible...
[T-Mobile Samsung Galaxy Note II] ryokowashu:
I just started experiencing this issue but it seems that shoving a rolled up piece of receipt paper on it fixed the problem for me.
[T-Mobile Samsung Galaxy Note II] OwenW71:
I just popped my new Samsung class 10 32GB card. The difference was instantly visible. First, the 'preparing SD card' message came and went much faster, about three seconds compared to over ten with the same size SanDisk. Loading files was about the same time.

I did notice that the card itself fit a bit more snugly in the slot.

My first 32GB SanDisk from Amazon was authentic, I checked with SanDisk customer service. It died about five weeks after getting the phone, but I had use it for months in another phone. I RMA'd it to SanDisk, and the new one they sent me started unmounting after the weeks. I yanked it immediately and put an old 8GB card in until my Samsung showed up. I think that after I format the 32 SanDisk, it should be fine in another device. I hope I caught it in time. I wish I knew what the issue is. Since this is happening with both S3 and N2 phones, I have a hard time believing that Samsung is unaware.

Swyped from the closest Galaxy.
[T-Mobile Samsung Galaxy Note II] vseslija:
Just purchased a 16gb PNY card and its been running seven hours no problems. I will report again.
[T-Mobile Samsung Galaxy Note II] kabuk1:
I think my card may be defective too. I got it on Dec. 27th & I just fired off an email to Sandisk because in the short time I've had it, I've had to format multiple times due to file corruption & "card damaged" messages, it keeps showing up as read-only in my phone, and now tonight it won't let me copy or delete any files. I delete a file, it acts like its deleted, but when I go back to the folder, there it is again!

There must have been some quality control issues at Sandisk recently cause I've never had this problem with their cards before. My old class 6 64gb has worked fine for the past year. Guess I'll be getting a Samsung card next >:|
[T-Mobile Samsung Galaxy Note II] vseslija:
Nm
[T-Mobile Samsung Galaxy Note II] Dave_Scott:
Hey guys, my first post:

I have Samsung note GT-N7100 with Android 4.1.2 and Kingston SD card 32Gb.

I have the "SD card unexpectedly removed", and "preparing SD card" on wake up.

However, I found that it only happens if I had previously accessed the SD card in the last session.

Is that helpful?
[T-Mobile Samsung Galaxy Note II] praveen.mallisetty:
trascend 32 gd

the issue happens with 32gd transcend as well..... does this spoils d phone???

---------- Post added at 07:56 PM ---------- Previous post was at 07:37 PM ----------

Your logic seems legit.... :) but from where can we expect d FIX for this Issue....?????

---------- Post added at 08:05 PM ---------- Previous post was at 07:56 PM ----------

Same issue with mine.... bt with 32 gb transcnd sd card... how could we fix this..... does this spoil d phone??? iam more worring abt phone rather than card....
[T-Mobile Samsung Galaxy Note II] svan71:
Stock / AOSP / TW

l tried multiple roms with my Sandisk 32 class 10 and i still get the message 4-5 times a day when waking from sleep. Its really annoying.I hope there is an answer to this soon.
[T-Mobile Samsung Galaxy Note II] JetFan:
FWIW, I am also having this sd card problem, with a completely stock ATT Galaxy Note 2 and a 32gb red and gray Sandisk 32gb card. Does anyone have this problem using the 64gb sandisk ultra card?
[T-Mobile Samsung Galaxy Note II] dan12288:
for me its the gray/red sd card
[T-Mobile Samsung Galaxy Note II] ahm.elghazaly:
Just called amazon to return my Sandisk ultra 32gb class 10, which brand should i go for now?
[T-Mobile Samsung Galaxy Note II] vseslija:
6 days problem free not a single message with 16gb transcend
[T-Mobile Samsung Galaxy Note II] kozmo21:
Samsung seems to be trouble free.
[T-Mobile Samsung Galaxy Note II] kabuk1:
Right here, 64gb class 10. I'm RMAing my card. Hopefully I'll get a good one in return.
[T-Mobile Samsung Galaxy Note II] BTT8:
I bought my 32gb back in October and just recently is when it started crapping out on me. I'm running Liquidsmooth on my S3 and media scanner is constantly running. I pop in my samsung 8gb and not a single message or problem.

So let me get this right: the only solution we have here is to abandon the sandisk 32gb and use another brand?
[T-Mobile Samsung Galaxy Note II] cobraboy85:
For those of you wondering which cards you should buy....

PNY... class 10. I have had mine for 2 years. And I use them religiously for my photography as well. Never had a single issue.
[T-Mobile Samsung Galaxy Note II] TirAnasazi:
Same here. After 5-6 weeks, my 32GB SanDisk Class4 died, after it has been showing the mentioed error messages for a couple of days. However, I was to lazy to make a backup even though I knew it was dying, so I lost every bit of data from the card. I was somehow assured this could be a temporary error because of some conflict with an app or so and it was also the first MicroSD in my lifetime that died.

My Note II is an international one (O2 UK), with stock ROM, rooted.

A couple of hours before the card died on me, I pulled it out and tried it in my old phone (LG Optimus P900) and for a moment it recognised the card . I could see it under settings with all the usual options available. But after I tried viewing the files on it I was unable to do so. Also, every time I tried formating the card under Windows, the process failed no matter if I tried Full or Quick format. The strange thing is, in my Note II the card is not recognised at all anymore (as if it wasn't even pluged in), while the LG still recognises it with an error message (card unreadable or damaged).

I've ordered now a new 16GB card (Samsung) and hopefully this issue will be gone. I intend to let it run with default settings. If it starts troubleshooting again, I might try the Protect SD card option from developer settings, and also increasing the cache size under virtual devices to 4096 from 128 and finaly dismount the phone to check the card slot connector to the mainboard. But if all that fails, I'm out of ideas.

I guess untill this issue is officially resolved by Samsung, I won't be going for higher capacitiy cards in the near future, as they are pretty expensive even if you strike a good deal at a given time.