There seems to be a prevalent issue in the latest jelly bean update in Galaxy S2 and Galaxy S3. All is smooth but after sometime this error pops up "Sd card unexpectedly removed" and then "Preparing Sd card".
This is related to the micro SD cards and not the internal storage memory.
In lots of forums people keep speaking about hardware issue! But I can assure you that it is not a hardware issue since I am now running CM9 stable for Galaxy S2 i9100 and the card is working fine with no error whatsoever.
There is an app called SD Card Monitor to check whether the SD card is being unmounted.
So there is no problem in ICS ROMs. My father's Galaxy S3 started giving the error once he updated to the official Samsung Jelly bean stock. If I run any jelly bean ROMs based on the Samsung stock I get these notifications in my phone plus the app SD Card Monitor reports a lot of bad unmounts. Around 15 to 16 in a span of 5 minutes.
The card I use is 32gb micro SD class 4 Transcend. People have reported same issues with Sandisk and even Samsung branded micro SDs. I really doubt some unwanted changes Samsung might have put in their code in Jelly Bean which makes these errors pop up.
I am posting this issue so that the developers would know that such an issue exists in the latest Samsung Jelly bean official ROMs and other ROMs based on the Samsung Stock.
Currently I am running ICS 4.0.4 CM9 Stable. I have formatted the card in Windows under Fat32. I have even tried NTFS and exFat. The unmounting issue was always there in the Samsung Jelly Bean but there is no issue in ICS.
same problem happened to me ,my SD is sandisk 32gb class 4
it happened after upgrading to the latest JB update
Not there in ICS
P Y T H O N said:
same problem happened to me ,my SD is sandisk 32gb class 4
it happened after upgrading to the latest JB update
Click to expand...
Click to collapse
In order to confirm, I have tried variety of ROMs.This issue popped up in Chameleon, NeatROM and also CM10.1. Now When I am running NeatRom ICS version there is no issue. I also checked with CM9. There is no issue. This has to be something related to Samsung. There are lots of discussions out there where Galaxy S3 is destroying SD cards. Something has to be done.
Not much hype is created because the worst that can happen is a dead SD card. Well High capacity SD cards are not cheap.
Confirmed issue in Samsung Jelly Bean Sources for Galaxy S2 i9100 and Galaxy S3 i9300. Possibly on other Samsung Jelly bean sources as well.
Issue mostly happens on high capacity cards, maybe 16gb or above.
Most affected brands - Sandisk, Transcend.
No issue when running ICS sources.
hi, is there a way to fix it?
I've got a Samsung Galaxy S2 i9100 with Jelly Bean and Sandisk 32GB class 10.
Not Just Samsung
Hi All,
I have a HTC Desire S, running Flinny Andromadeus - CM 10.1 and I also have this problem with a 32GB Micro SD Card.
Many Thanks,
Graham
Graham_Kendall said:
Hi All,
I have a HTC Desire S, running Flinny Andromadeus - CM 10.1 and I also have this problem with a 32GB Micro SD Card.
Many Thanks,
Graham
Click to expand...
Click to collapse
You have to ask on the forum for your phone, this is galaxy s2 forum
Sent from my gt-9100 powered by dorimanx
You can thank me if i helped you
intimateangel said:
There seems to be a prevalent issue in the latest jelly bean update in Galaxy S2 and Galaxy S3.
...
The unmounting issue was always there in the Samsung Jelly Bean but there is no issue in ICS.
Click to expand...
Click to collapse
That's not necessarily a fact because my "SD card unexpectedly removed" started when I was still on ICS, and haven't been rectified with the new JB releases.
After reading quite a lot I am inclined to think it's a hardware fault - either the SD card slot and connectors or the SD cards itself.
Everyone here seems to be dead set that it must be a Sandisk problem, but I have this problem with 2 different A-DATA 32GB class 10 cards.
UPDATE:
If you have experienced this 'SD card unexpectedly removed' problem,
please go to the following defect issue, and click the star to register yourself as another user with the problem...
Issue 9736 - android - SD card unexpectedly removed error LG Ally - Android - An Open Handset Alliance Project - Google Project Hosting
Also, please add this note and link to the OP to hopefully catch people when they first see this thread, and encourage them to go there and register before getting lost in this rabbit hole (i.e. a real solution might not exist outside of fixing some code somewhere within the OS itself).
The reason for error "SD card Unexpectedly" in my phone was bad sectors on the sd card. When I replaced the sd card in shop with new one the error "SD card Unexpectedly" isn't showing again.
Again back to square one!
tatkovladko said:
That's not necessarily a fact because my "SD card unexpectedly removed" started when I was still on ICS, and haven't been rectified with the new JB releases.
After reading quite a lot I am inclined to think it's a hardware fault - either the SD card slot and connectors or the SD cards itself.
Everyone here seems to be dead set that it must be a Sandisk problem, but I have this problem with 2 different A-DATA 32GB class 10 cards.
Click to expand...
Click to collapse
Well, I have reason to believe because my observations point me that way.
There is no hardware fault whatsoever as I have been using an 8gb Card without any issues. Now a 16gb Card without any issues.
Maybe your issue might be a hardware fault, that doesn't mean everybody has a hardware fault. When people say so you got to read everything. Even in my post I have specifically mentioned I had no issues in ICS. Please don't mix up everything.
"If your issues started with ICS that means you may have a problematic card or problematic hardware"
In my case I can assure you there is no problem with the card because it works perfectly in other Android devices and my phone does not have a hardware problem because 16gb and 8gb cards work perfectly in it.
I hope I have made myself VERY CLEAR.
Hey all,
I am having the same issue. The card may or may not be read by my laptop either, it's about 50/50. I was able to copy all the data off, thankfully. I know this isn't the S4 forum, but it's the same issue, hope you don't mind. I didn't see an S4 forum with this issue, unless I missed it.
Anyway, I read somewhere that this may be caused because the SD card was connected while rooting the phone. I don't know how true that is, but I gave it a shot. I re-rooted my phone with the card removed. Then, I formatted the card (FAT32, 32KB) in my laptop. I did a full format, not a quick one. I did NOT format the card after I put it back in my phone. Then, I copied all the content back to the card (card in phone).
it's been ok for a few days now. Could this have been helpful? Is it possible having it connected while rooting is causing an issue? I'll update here if it starts acting up again.
Sandisk 32GB SDHC Class 10 Micro SD card
Samsung Galaxy S4 (SGH-I337) AT&T
Windows 7 64 Bit
android5511 said:
Hey all,
I am having the same issue. The card may or may not be read by my laptop either, it's about 50/50. I was able to copy all the data off, thankfully. I know this isn't the S4 forum, but it's the same issue, hope you don't mind. I didn't see an S4 forum with this issue, unless I missed it.
Anyway, I read somewhere that this may be caused because the SD card was connected while rooting the phone. I don't know how true that is, but I gave it a shot. I re-rooted my phone with the card removed. Then, I formatted the card (FAT32, 32KB) in my laptop. I did a full format, not a quick one. I did NOT format the card after I put it back in my phone. Then, I copied all the content back to the card (card in phone).
it's been ok for a few days now. Could this have been helpful? Is it possible having it connected while rooting is causing an issue? I'll update here if it starts acting up again.
Sandisk 32GB SDHC Class 10 Micro SD card
Samsung Galaxy S4 (SGH-I337) AT&T
Windows 7 64 Bit
Click to expand...
Click to collapse
I don't think rooting is the cause for that (I will give you an opinion from the s2 perspective) usually in our device either the card is loose, or some rom has some bugs, next time it happens just try carefully cleaning it with a dry cloth and insert it firmly, also do not remove again unless that problem occurs again, frequent SD card changers have had problems like this since they remove their SD card often, which makes it slightly loose.
Sent from my GT-I9100 using xda app-developers app
king_below_my_lord said:
I don't think rooting is the cause for that (I will give you an opinion from the s2 perspective) usually in our device either the card is loose, or some rom has some bugs, next time it happens just try carefully cleaning it with a dry cloth and insert it firmly, also do not remove again unless that problem occurs again, frequent SD card changers have had problems like this since they remove their SD card often, which makes it slightly loose.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Just adding to the information already gathered ....
Probably not rooting and may not be device specific. May be related to JB - some posts elsewhere suggest that the problems started happening on S2/3 devices after a JB upgrade from ICS. I have a Galaxy S4, non-rooted, put in a brand new Samsung 64GB SDHC Class 10 and got the problem after a day. Started happening when I was using the Video Camera - not sure if this is significant.
It got so bad that the phone started complaining that the SD card was corrupt. When I put it on a PC - there were no problems with the SD or the files on it.
So I'm going to try formatting the SD card (as exFAT) on my PC and see what happens. I'll let you know how this gets on - not too hopeful that this will fix the problem.
Had same issue with two Transcend 32gb cards. In both cases, after unexpected unmount sd cards were completely dead...
Same problem on Galaxy s2 with CM10.1 and Sandisk 32gb class 10.
No solution yet?
I have the same issue with my 32GB Sandisk card.
This happens on my S2 and S3. After a night of unmount bug my sd card is dead.
I had issues with a 64GB card on my S3 that I thought would end when I got my S4. It didn't.
I'd be scrolling down in Titanium to restore my apps and the card would be "removed unexpectedly".
I just put in a brand new card and haven't had any issues since.
For people who ended up with dead card - did you use ext sd for camera storage, or torrent dowload, etc?
Maybe frequent read/writte on jb at one point corrupts and kills ext sd. Just thinking loudly.
Now I am using 3rd (!) card - storage for photos and everything else is on internal. So far is ok. In previous (and fatal) cases, both of cards died after 3 months of usage.
Checking on ICS
Hi,
I have same issue on JB 4.2.2 with Sand disk 32 GB class 4 card ... I am downgrading to ICS to check this issue ..
---------- Post added at 10:57 AM ---------- Previous post was at 10:50 AM ----------
varunmagical said:
Hi,
I have same issue on JB 4.2.2 with Sand disk 32 GB class 4 card ... I am downgrading to ICS to check this issue ..
Click to expand...
Click to collapse
Hi,
Now I can confirm this is a hardware issue...
I downgraded to ICS using the nandroid backup image I was using in october 2012. My card was working fine with this image .. Now it refuses to even acknowledge that the card exists ..
varunmagical said:
Hi,
I have same issue on JB 4.2.2 with Sand disk 32 GB class 4 card ... I am downgrading to ICS to check this issue ..
---------- Post added at 10:57 AM ---------- Previous post was at 10:50 AM ----------
Hi,
Now I can confirm this is a hardware issue...
I downgraded to ICS using the nandroid backup image I was using in october 2012. My card was working fine with this image .. Now it refuses to even acknowledge that the card exists ..
Click to expand...
Click to collapse
That doesn't mean it's hardware issue. It means - after software issue of your phone, it became hardware issue for your card.
If you really want to test, buy another card, use it with ICS, and then you will see if it is hardware issue...
Related
I'm running CM10 on 4.1.2. My sd card is 32gb.
I have tried formatting the sd card on a pc.
It also happens with other SD cards.
Please help. :/
Sent from my GT-I9300 using xda app-developers app
Why not post in the Cm discussion thread ?????????
jje
тще ифв
Same problem on stock jb 4.1.1
Hello i've the same problem on Stock JB 4.1.1 almost all the times I wake up the phone from standby i see. SD was removed..... and then Preparing SD Card. Is there a sw or hw problem? What can i try to solve it?
Thank you
Hi, I've got exactly same problem. I'm on stock jelly bean 4.1.1 not rooted not moded in any way. Card 33gb sdhc class 4.
I have formated this card few times in phone and still same thing happens.
This has never happened on stock ics firmwares.
Has anyone got a solution for this?
Please post your thoughts/opinion.
Thank you!
This seems to be an issue with the card controller itself or the controller drivers, I've been trying to fix it for ages and can't seem do any progress on it though. There is a possibility that it's ahardware fault of the phone.
ZiiCNess said:
I'm running CM10 on 4.1.2. My sd card is 32gb.
I have tried formatting the sd card on a pc.
It also happens with other SD cards.
Please help. :/
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
hi, what brand is your memory card?
---------- Post added at 02:08 PM ---------- Previous post was at 02:03 PM ----------
just been speaking to samsung rep over the phone, they said that if this is not samsung branded memory card they can't provide any support for this issue... very dissapointing!
This has happened to my sd card too. Took plenty of pix yesterday and after that this "Preparing SD card", add also "blank SD card" notices started to pop up everytime. Got scared for my files, fortunately, this morning, I was able to detect the card from the PC. I Backup files and restarted the phone. The same notices. Decided to format the card from the phone but still the same. I just kept the card in the phone. Guess what, this afternoon I could again access the files from the sd card--that with formatting from the phone. But it alternated with the above mentioned notices.
So, has anybody already validated that it is an HW problem?
Stock LJ1 rooted Siyah 1.7rc3 dual boot with CM10 nightly 20121111
SanDisk 32gb class 4 (original I hope-but China made)
Sent from my GT-I9300 using xda premium
Same problem here,i am thinking our Quad core cpu is burning the SD card slot!
I have notice the cpu is laying right under the sd card slot so when our quad core gets high temp,it slowly burns our micro sd card.
This happens to my moms s3 and mine too,might be a failure from SAMSUNG.
This happened to me as well, Stock JB 4.1.1, with a (presumably) genuine Sandisk 32GB class 4 card. It began after I updated to JB, first with "updating SD" every time I woke the phone from standby, then frequent errors saying the SD card was corrupt, and finally that it was blank. I tried reformatting but the SD card eventually became unreadable in either the phone or my PC - it simply wasn't recognised at all. I replaced the SD card and I haven't had another issue but I do wonder if it is just a matter of time before the errors begin again.
i have spoke to samsung rep again, and this time lady was great help but i need to send my phone to their repair centre for a software reflash, which is different to phone reset.
and if the failure will repeat after this, ill have to send it again but on the third occasion ill have new replacement.
hopefully itll get sorted by just reflashing.
ill keep you updated if you're interested.
thanks,
bednim said:
i have spoke to samsung rep again, and this time lady was great help but i need to send my phone to their repair centre for a software reflash, which is different to phone reset.
and if the failure will repeat after this, ill have to send it again but on the third occasion ill have new replacement.
hopefully itll get sorted by just reflashing.
ill keep you updated if you're interested.
thanks,
Click to expand...
Click to collapse
Please do update. Guess it's better to remove first the card until the problem is resolved. Tia.
Sent from my GT-I9300 using xda premium
I made a post about this awhile back too. I thought I was the only one but this happens randomly to me. I thought it had to do with the media scanner, but apparently a lot of us have the problem.
I just get it randomly though.
increased MMC command timeout from Linux default 300ms to 3s in trying to finally squash errors and "unexpectedly removed SD card" after resume
Sent from my GT-I9300 using xda premium
---------- Post added at 12:35 PM ---------- Previous post was at 12:34 PM ----------
Using Perseus kernel, problem disappear
Sent from my GT-I9300 using xda premium
---------- Post added at 12:36 PM ---------- Previous post was at 12:35 PM ----------
http://forum.xda-developers.com/showthread.php?t=1691401
Sent from my GT-I9300 using xda premium
hi guys!
just a quick update! i have received new memory card, sandisk 32gb class 4, sent and sold by amazon uk, and the problem is gone!
i'll keep my phone for the rest of this week and if the issue will not repeat i dont think i'll send my phone off for re-flash.
have you tried new mem cards in your devices?
my s3 is stock jb, not rooted device.
thanks!
bednim said:
i have spoke to samsung rep again, and this time lady was great help but i need to send my phone to their repair centre for a software reflash, which is different to phone reset.
and if the failure will repeat after this, ill have to send it again but on the third occasion ill have new replacement.
hopefully itll get sorted by just reflashing.
ill keep you updated if you're interested.
thanks,
Click to expand...
Click to collapse
I had the exact same problem with my 32GB class 10 sandisk card (original, I think), after 3 months of use.
I got a new card and the problem is gone. I thought it was a faulty sd card, but I seems i´m not the only that had this issue... Maybe it´s an hardware problem on our gs3?
Please keep us updated :good:
PS: I tried my old card on 2 stock roms and CM10, so i guess it´s not a software issue. I alse tried to format my card multiple times and no luck.
But it´s wired that h2testw did not show any errors on my card!
I have been using a SanDisk 32GB class 10 for about 3 months and everything was perfect....until I started experiencing same issues as mentioned: Sd card blank, sd card error, unsupported format etc.
First I thought this was caused by custom kernel, but after flashing the stock kernel I was still having the same problems.
As this nasty error keeps happening repeatedly the sd card becomes unreadable and I ended up formatting the card in a pc.
However, I found out that it's not necessary to format the card. All you have to do is mounting the card in another device/pc and then back in to the phone (without formatting).
Anyways, I had enough of that sh*t so I removed the card. A couple of days later I put the card back in phone and it's been working perfectly ever since.
So at first the card worked flawlessly, then later it was blank/unsupported/removed for a week or something and now it's back to normal.
I haven't installed or flashed anything different than before so I guess it's a manufacturer hardware flaw.
I hope this headache doesn't happen again.
PS: My friend has a gs3 as well and we have identical sd cards (bought at same time and in the same shop). However, he NEVER had a single error with his. So how can this be explained???!!
Hi,
Just a quick question. Have you been using infuse car dock and started to experience memory cards issues afterwards?
For me this only happened in stock jelly bean. Flashed back to ICS, problem solved.
Sent from my GT-I9300 using xda app-developers app
winsome said:
I have been using a SanDisk 32GB class 10 for about 3 months and everything was perfect....until I started experiencing same issues as mentioned: Sd card blank, sd card error, unsupported format etc.
First I thought this was caused by custom kernel, but after flashing the stock kernel I was still having the same problems.
As this nasty error keeps happening repeatedly the sd card becomes unreadable and I ended up formatting the card in a pc.
However, I found out that it's not necessary to format the card. All you have to do is mounting the card in another device/pc and then back in to the phone (without formatting).
Anyways, I had enough of that sh*t so I removed the card. A couple of days later I put the card back in phone and it's been working perfectly ever since.
So at first the card worked flawlessly, then later it was blank/unsupported/removed for a week or something and now it's back to normal.
I haven't installed or flashed anything different than before so I guess it's a manufacturer hardware flaw.
I hope this headache doesn't happen again.
PS: My friend has a gs3 as well and we have identical sd cards (bought at same time and in the same shop). However, he NEVER had a single error with his. So how can this be explained???!!
Click to expand...
Click to collapse
Will try this. I'll insert the card again and see what happens.
edit: still getting random notices
Sent from my GT-I9300 using xda premium
Hi ,
My External SD card on galaxy s3 i9300 international version .... shows up on the notifation bar that Sd card removed unexpectedly.... this happens evry 10 mins or 15 mins....
Help appriciated
Have got the exact same issue and drains the battery quicker as it has to keep on rescanning the SD card...I have reformatted the card and it still doesn't help...did not have this issue until last week and don't know what happened for the SD card to keep on being removed every 10-15mins..I have realized that every time I wake the phone up I see the card icon in the status bar for a second.. Sadly I have read that this is a common issue and it eventually can fry the card and make it useless so I have decided to remove it and not use a SD card(main reason I got the phone was for this reason)...since then my battery has been amazing as the media scanner is not constantly running..so far no one seems to have a reason why this suddenly happens as I have not had an issue since I got the s3 which was over 6 months ago and out of nowhere this issue occured..I hope that this may be an software issue which can be fixed in the future or hopefully someone in xda can either find out whats the issue or find a fix till then I will keep my 32 GB sandisk card safe.
Sent from my Nexus 7 using xda app-developers app
Format card in windows factory reset phone .
jje
Sent from my GT-N8013 using xda premium
I have done .... sadly the issue still the same
Do you use a Sandisk 32GB card by any chance?
I had these same issues, which went away once I changed to samsung cards.
If you can, return the card for replacement, as cards made after december 2012 dont have this issue anymore.
cheers
Interesting, i have exactly the same issue since january 1th. It worked for about a month without any problems (bought it late november).
Now this is killing me how it behaves every 5min. I have reset the phone, updated the phone, formatted the sd-card.. nothing helps.
So if i return my sandisk 32gb, should i ask for a new sandisk or go with the samsung?
tryerxda said:
Do you use a Sandisk 32GB card by any chance?
I had these same issues, which went away once I changed to samsung cards.
If you can, return the card for replacement, as cards made after december 2012 dont have this issue anymore.
cheers
Click to expand...
Click to collapse
Got a 32gb sandisk card which I got in Octoberish I think...was working fine till recently...went back to my old 16gb card and everything is fine again...is this an issue with Samsung s3 or the SD card as the SD card works fine on my sisters RAZR I or is that some cards don't play nice with the s3...
Sent from my Nexus 7 using Tapatalk HD
Happened to me after I dropped mine. Bought a new SD reader from ebay and replaced it myself
Glebun said:
Happened to me after I dropped mine. Bought a new SD reader from ebay and replaced it myself
Click to expand...
Click to collapse
In your case I guess no SD cards would work...with me and many other some SD card worked and some didn't.
Sent from my Nexus 7 using Tapatalk HD
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
hamidoo said:
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
Click to expand...
Click to collapse
I've seen my 64Gb Sandisk card auto unmount and remount itself a couple of times today, have seen it once before. Again was caining the battery on the phone with the media process rescanning it.
Thanks for the app I've installed it to monitor this from now on, to see if its potentially a faulty card.
hamidoo said:
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
Click to expand...
Click to collapse
This app is really great, proves the issue. Like others, I have this problem with a Sandisk Ultra 32gb. I tried popping in an old 4gb card (forget the manufacturer) and had no issues.
Saw somebody else suggesting that the Franco kernel fixed this issue, and sure enough it seemed to have cured it for me for a few weeks, but it's just started again today - your app showed unmounts/ejects happening every couple of minutes, so I've now submitted a request to Sandisk to return the card.
Hey all. Over the past week or so, I've been experiencing a problem where randomly, a message will come up in a random task saying something like "SD Card unmounted unexpectedly, it may be damaged." Anybody else experiencing this? It is the stock SD card and I've made 100% sure it wasn't loose or anything. Think this could just be a bad SD card?
willtoskie said:
Hey all. Over the past week or so, I've been experiencing a problem where randomly, a message will come up in a random task saying something like "SD Card unmounted unexpectedly, it may be damaged." Anybody else experiencing this? It is the stock SD card and I've made 100% sure it wasn't loose or anything. Think this could just be a bad SD card?
Click to expand...
Click to collapse
I'm running into the same problem. I've been ignoring it in hopes that it's a software issue that will get resolved whenever a JB ROM is released. Are you running a custom rom? I'm running The Base 0.7.3.
Fyi, I haven't had this problem at all in over two months of use. Ran stock for about a month and The Base rom for the past month.
Thank god other people have had it happen too. It's happened to me a lot BUT.. I had a 32gb class 4 SanDisk in my phone and that was constantly unmounting itself but I put the 16gb that came with my phone and it has yet to do it. Are you guys using a card other than what it came with?
Sent from my LG-E970
It happens to mine quite a bit, probably 7-10 times a day. I'm using a SanDisk 64GB class 10 SD card, formatted as ExFAT. Maybe I'll try switching back to the stock card to see if that has anything to do with it.
I had the same problem and switch out the card and the error stopped. I had the 32GB SanDisk Ultra and with that card it I was getting the random dismounts. I replaced it with the stock card and was working fine. I returned the SanDisk card and got a new one and it seems to be fine for about 5 days now.
What file formats are you using. My 64 GB is formatted as Fat32 and I've never had this issue. I also think that the included SD Card was pre-formatted to Fat32 which may be the reason it stopped when you switched back to it.
There you go... I've always used the stock sd card. Are you guys losing data when this happens?
This used to happen to me on my 64GB Sandisk Class 10 formatted with exFAT. I fixed it by running CHKDSK with both options checked in Windows 7. Hasn't happened since. It said it didn't detect any errors but it did something lol.
I don't believe I've lost any data. All of the songs I put on the SD card still play. I may try repairing it or using the SD card from my inspire, which may prove to be worse since I think it's only a class 4. I'll post once I figure something out.
One last thing was I tried doing a non-quick format of the card and after that my phone would not recognize that card at all until i exchanged it for a new one.
I generally don't recommend letting Windows GUI format a flash card. Google around for windows make clean, windows command line clean and format. That's your ticket right there.
Ok, after buying a cheap and corrupted 64gb micro sd card, I went and spent the money on a 64gb sandisk card. It works just fine. Now, I am rooted and have synergy rom build 104 which is also running fine. I noticed before I flashed the rom that cwm wouldn't recognize my external sd card. I read up on that and found that cwm won't read cards formatted to exfat. So, I formatted the card to fat32 and remounted, transferred all my music back onto the card. Everything worked just fine until I plugged my phone into my computer. I was able to open and navigate through the files like normal, except when I went to open the music folder where all my mp3s were. I tried this on 2 different computers and on both the computer froze with the sand timer. The phone itself was fine, my music player(poweramp) was and is able to play the files with no issue. Also, when I unmounted the card and put it into a card reader and then connected the card reader to my computer and voila! Everything was fine, I was able to open the music folder and scan through the music files. I am not sure what the issue is. Can anyone shed some light as to whether this is a phone/rom issue, a micro sd card issue, an mp3 issue? Any ideas would be appreciated.
That sounds like a bad sd card. Have you ran a checkdisk on it?
Sent from my SCH-I545 using Tapatalk 4 Beta
If it's a SanDisk 64GB MicroSDXC UHS-1 then they have a replacement program where the older cards had issues in the S3/S4 devices. They sent me a free replacement and everything seems to be working. No Damaged card errors as of yet.
DarkMenace said:
If it's a SanDisk 64GB MicroSDXC UHS-1 then they have a replacement program where the older cards had issues in the S3/S4 devices. They sent me a free replacement and everything seems to be working. No Damaged card errors as of yet.
Click to expand...
Click to collapse
Hm, been searching around for this exact issue. Coworkers S4 with this exact SD card has been getting the removed unexpectedly error. Reformatted a few times, restarted phone, error comes back. It's in my Note 2 at the moment for troubleshooting, and so far so good, but this makes me move more toward an actual SD card issue in combination with the s4, and not the phone itself.
h1p1n3 said:
Hm, been searching around for this exact issue. Coworkers S4 with this exact SD card has been getting the removed unexpectedly error. Reformatted a few times, restarted phone, error comes back. It's in my Note 2 at the moment for troubleshooting, and so far so good, but this makes me move more toward an actual SD card issue in combination with the s4, and not the phone itself.
Click to expand...
Click to collapse
The SanDisk issue only affects the Galaxy S3/S4 as they told me. My other 64gb Sandisk card works just fine in my tablet.
DarkMenace said:
If it's a SanDisk 64GB MicroSDXC UHS-1 then they have a replacement program where the older cards had issues in the S3/S4 devices. They sent me a free replacement and everything seems to be working. No Damaged card errors as of yet.
Click to expand...
Click to collapse
I called them and they are going to exchange it out for me. The weird thing is that I didn't get any damaged card error messages on the phone itself. It mounted it as soon as I popped it in. Even after formatting to fat32, it mounted right away with no issues. It only happened a couple days after I transferred all my music onto it. Is the free replacement they give you a newer card or newer model number?
+1 to the above. SanDisk told me they have a new version of the 64gig card with updated firmware, specifically for the S4. Package tracking shows mine is to be delivered on Monday.
tylerdurden531 said:
I called them and they are going to exchange it out for me. The weird thing is that I didn't get any damaged card error messages on the phone itself. It mounted it as soon as I popped it in. Even after formatting to fat32, it mounted right away with no issues. It only happened a couple days after I transferred all my music onto it. Is the free replacement they give you a newer card or newer model number?
Click to expand...
Click to collapse
It's the newer models. With the updated Firmware.
stuartv said:
+1 to the above. SanDisk told me they have a new version of the 64gig card with updated firmware, specifically for the S4. Package tracking shows mine is to be delivered on Monday.
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Click to collapse
Yeah, the guy said they were having stock issues and said it would take 3 weeks for mine to ship. Oh well, at least they are exchanging it. Thanks for the help guys!
Sent from my SCH-I545 using xda app-developers app
So are all 64GB cards having issues, like other brands? I want a 64 bc my backups are freaking huge and taking up space. And with being rooted how would I transfer everything to the new card without messing up the phone?
Sent from my SCH-I545 using Tapatalk 2
stuartv said:
+1 to the above. SanDisk told me they have a new version of the 64gig card with updated firmware, specifically for the S4. Package tracking shows mine is to be delivered on Monday.
Click to expand...
Click to collapse
So when this card tanks, I have to drop the big money on a card specifically made for this phone. Is this a problem with existing cards or did Samsung do something that required this firmware change?
tylerdurden531 said:
Yeah, the guy said they were having stock issues and said it would take 3 weeks for mine to ship. Oh well, at least they are exchanging it. Thanks for the help guys!
Sent from my SCH-I545 using xda app-developers app
Click to expand...
Click to collapse
They told me that too. My guess is it's due to the mass recall of the chips for the S3/S4. They said it's not present in Tablets so my 64GB in my tablet would be fine.
+1 problem with Sandisk 64Gb UH-1 card. Unexpected removal error. I am writing just for statistics. Just got my new Verizon S4 - and have problems...
FYI - I'm having a similar issue with a Samsung 64GD card. Got it to see the music for a while yesterday but after a reboot it can no longer see it.
Update, I received my new card and just popped it in. My phone automatically formatted it to exFAT. I'm not going to try changing it to FAT32, but is there any version or way I can get cwm to recognize the card in exFAT format? I tried TWRP, but when I flashed a rom it soft bricked the phone so I would like to stick with cwm.
So my MicroSD card (32GB SanDisk Class 10 Red/Grey) has been acting weird lately (since I upgraded from ICS to JB). Not my phone automatically unmounts the card from time to time and I don't know why. I have trying formatting from Windows and from the phone, with FAT32 and ExFat. And I don't want to wipe my phone or install any other ROM or similar stuff.
I will try another card, but is there something I can do to prevent this?
This has nothing to do with your ROM or your phone, it's your SD card itself which is causing this problem. Just try another SD card and I'm sure the problem is solved.
Sent from my GT-I9300 using xda premium
I will try... but is weird because the problem started right after I upgraded my phone.
faulty sd card slot may be if it doesn't recognise any card.
sent from my GS3 running PARDUS ROM XXUFME7
Well known issue with SanDisk cards
http://forum.xda-developers.com/showthread.php?t=2197548
Sandisk admits to faults with Mobile ultra SD cards
Well yeah, some sandisk class 10 32gb have issues.
But what about the countless other micro sd cards being reported as fried by the s3?
I believe there is also something wrong with some s3 that kills sd cards.
I've had it happen with sandisc 32gb, and kingston 16gb.
dxppxd said:
Well yeah, some sandisk class 10 32gb have issues.
But what about the countless other micro sd cards being reported as fried by the s3?
I believe there is also something wrong with some s3 that kills sd cards.
I've had it happen with sandisc 32gb, and kingston 16gb.
Click to expand...
Click to collapse
Yup, S3 has some issues with SD cards (see http://forum.xda-developers.com/showthread.php?t=1906058&highlight=sd+card+killer). Allready killed one of mine too, couldn't do anything with it. No device even recognized it anymore.
I insist, maybe it's my phone because it happened right after the upgrade, maybe something in the ROM, OS, kernel, or something... so I guess it's a lottery... I'm trying another card now...
Its the phone
eXtremeDevil said:
So my MicroSD card (32GB SanDisk Class 10 Red/Grey) has been acting weird lately (since I upgraded from ICS to JB). Not my phone automatically unmounts the card from time to time and I don't know why. I have trying formatting from Windows and from the phone, with FAT32 and ExFat. And I don't want to wipe my phone or install any other ROM or similar stuff.
I will try another card, but is there something I can do to prevent this?
Click to expand...
Click to collapse
don't use the card for anything you want to keep. backup to Dropbox constantly....
~Roxy
if it doesn't work with a different card - replace the slot