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Old July 3rd, 2013, 08:00 AM   #1 (permalink)
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Default SD Card Not Recognized Galaxy S4

So a few weeks ago I popped in my micro SD card, mounted, formatted and what not and away I went. Worked fine up until last night. The card does not read.

I took the card out, put it back in, restarted, nothing.

I go to Settings>More>Storage and scroll the whole way down and "Mount SD card...Insert SD card" is grayed out.

I assume my card could be corrupt though. I'm waiting until I get home to try the card in my reader I have.

Could this also be a phone issue?

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Old July 3rd, 2013, 08:08 AM   #2 (permalink)
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Welcome to Android Forums Muhnamana.

I moved this here from the Galaxy S 4G forum so you get the right eyes on it. I'm sure another device owner will chime in.
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Old July 3rd, 2013, 08:15 AM   #3 (permalink)
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Originally Posted by Unforgiven View Post
Welcome to Android Forums Muhnamana.

I moved this here from the Galaxy S 4G forum so you get the right eyes on it. I'm sure another device owner will chime in.
Thanks again!
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Old July 3rd, 2013, 08:19 AM   #4 (permalink)
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what kind of card?
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Old July 3rd, 2013, 08:24 AM   #5 (permalink)
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http://www.target.com/p/lexar-16gb-microsd-600x-w-reader/-/A-14453640#prodSlot=medium_1_21&term=Lexar

Lexar 16G
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Old July 3rd, 2013, 09:09 AM   #6 (permalink)
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Well some good news. A coworker tried to mount the same card in his phone with no such luck. This leads me to believe the card is corrupt. Sigh of relief for now.
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Old July 3rd, 2013, 09:26 AM   #7 (permalink)
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If you have access to a PC with a card slot see if the PC can format the card.
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Old July 3rd, 2013, 09:47 AM   #8 (permalink)
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Originally Posted by valorian View Post
If you have access to a PC with a card slot see if the PC can format the card.
You thinking maybe a reformat might work? I thought of this myself but wasn't sure if that would really do the trick. Its worth a shot though.
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Old July 3rd, 2013, 12:13 PM   #9 (permalink)
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I have tried many SD cards (sandisk 32g, kingston 16 , pny 32, all class 10), they all corrupted. in my case, when I plug in headphones to listen to Slacker or Pandora, Google Music loads too. Very annoying, but it would seem that the phone sleeps with Google Music accessing some music files, and soon I will get a corruption message... and so on. It's been noted a few places here that many brands of cards have a sleeping timing issue with the S4. My friends have noted the same thing with other Non-Samsung cards. My fix was to finally break down and get a Samsung Plus or Pro mSD card as cheaply as I could. When not on sale, they aren't a very great value. But.. after a good bit of time, I have no corruption problems. :/
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Old July 7th, 2013, 01:38 PM   #10 (permalink)
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I just left Verizon due to SD card and SIM card issues. They changed my SIM card and after researching, they did find issues with Samsung not being able to recognize some Sandisk cards."They are working on the problem", is what I was told. They gave me Sandisk's number to call to see if they will replace the SD card. I think I will just buy a different brand versus trying to get a replacement from Sandisk.
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Old July 7th, 2013, 11:05 PM   #11 (permalink)
 
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smart phones + memory cards have always being nightmares.
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Old July 7th, 2013, 11:07 PM   #12 (permalink)
 
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So what is the best way to go with memory cards? No one has finalised the thread.
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Old July 8th, 2013, 12:23 AM   #13 (permalink)
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Get a Samsung micro sd card, didn't hear any problems with them.
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Old July 14th, 2013, 02:13 PM   #14 (permalink)
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Originally Posted by ANewDay View Post
Get a Samsung micro sd card, didn't hear any problems with them.
Unfortunately this is not true. I've been researching the heck out of this issue due to ongoing problems. It seems all cards are susceptible to this problem in the GS4. I'm awaiting my replacement from sandisk as we speak.

My issues: card worked for awhile. Then when unlocking phone it would give me messages about unmounting then preparing SD card. A few days after that it would say it was damaged. After a week the problems stopped for a month, then came back. Now the card is completely dead and /if/ I can get windows to recognize it, it says it needs to format it but it cant.

Other users reported similar things and a few reported same issues with Samsung cards.
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Old July 14th, 2013, 03:48 PM   #15 (permalink)
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Quote:
Originally Posted by Punkrulz24 View Post
Unfortunately this is not true. I've been researching the heck out of this issue due to ongoing problems. It seems all cards are susceptible to this problem in the GS4. I'm awaiting my replacement from sandisk as we speak.

My issues: card worked for awhile. Then when unlocking phone it would give me messages about unmounting then preparing SD card. A few days after that it would say it was damaged. After a week the problems stopped for a month, then came back. Now the card is completely dead and /if/ I can get windows to recognize it, it says it needs to format it but it cant.

Other users reported similar things and a few reported same issues with Samsung cards.
I never heard of any issues based on reviews from various sites like amazon, newegg and forums.
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Old July 14th, 2013, 06:53 PM   #16 (permalink)
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I can confirm that my s4 manged to kill a SanDisk card AND a Samsung class 10 64gb card. Couldn't reformat it with a computer or anything. I'm on my second Samsung card and it's been flawless now since I put it in about a month ago.
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Old July 15th, 2013, 09:17 AM   #17 (permalink)
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Quote:
Originally Posted by Tware View Post
in my case, when I plug in headphones to listen to Slacker or Pandora, Google Music loads too.
I believe there was a bug on the S3/S4 with Google Play Music where it would always load and run even if you never used it. If you don't use it, disable the Google Play Music app. Someone correct me if I'm wrong on this...I may be mis-remembering (common as you get older).
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Old July 15th, 2013, 09:24 AM   #18 (permalink)
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Quote:
Originally Posted by Punkrulz24 View Post
It seems all cards are susceptible to this problem in the GS4.
I suspect you may be right. There may be something in the hardware on this phone which makes it very finicky when it comes to the micro SD cards. This is, of course, conjecture at this point. But given the number of problems I have read about on this forum with cards un-mounting, there may be a larger problem at work here.

My first card was a San Disk 64GB and it un-mounted constantly so I returned it and bought a Samsung 64GB card...haven't had any problems since. So my problem was most likely card related...but you never really know without more thorough testing.

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I never heard of any issues based on reviews from various sites like amazon, newegg and forums.
This doesn't mean much. Any card is susceptible to problems. Although it seems like, at the moment, San Disk cards are more susceptible to problems given the that they seem to have come across a batch of bad chips.
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Old July 17th, 2013, 09:42 AM   #19 (permalink)
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My cards were still mounting in a PC, although giving corruption messages. Without fail, it would be file that Google Music was trying to read (though as stated above I wasnt using GM). Or an image or video that gallery/player had been accessing previously when the device went to sleep, usually while on charge overnight. So in my experiences, mine were sleeping timing related. So far, no issues with a Samsung Plus card, but also, there have been patches to those apps and a new OTA update came out, so it could be they just fixed the issue. (or my card just hasnt died YET)
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Old August 14th, 2013, 01:22 PM   #20 (permalink)
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This is clearly an issue with Samsung somehow. I don't know if it's hardware or mechanical in nature (e.g. the spring or sleeve it goes into) or what. But if you google it, this is the SAME problem that plagued s3 and n2 owners. It doesn't affect everyone, and none of these factors are consistent:

- rooted vs. not rooted
- stock vs. AOSP
- class of SD card
- SD card brand (unless they all share the same underlying memory chip maker like Micron, etc, but no one has demonstrated that)

At this point, I'm afraid to even buy and put in a new card as it's eaten 2 of mine. I'm tempted to just go without an sd card at this point and just pull ROM backups/etc off the phone if/when I do a TWRP backup or something to keep the internal storage from filling up (since we have a whopping 10G of the 16G left over on the sdcard).
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Old August 25th, 2013, 12:05 PM   #21 (permalink)
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Another one here - less than a month, my brand new 64 g class 10 Patriot SD card is failing. I noticed there is a big thread with issues like this for the SIII.

Really not happy right now. I put in a new Sandisk "Extreme" SDSDQX-032G-U46A 32G card straight out of the package. Hopefully this one won't die so quickly. I am willing to take a chance with this card, because I need to use it to review it anyhow since that is the reason I was sent the card. Just didn't realize I would be using it so quickly and without transferring any of the data from my brand new 64 gig Patriot card.
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Old August 25th, 2013, 11:07 PM   #22 (permalink)
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Quote:
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Format the SD card in PC, then change the card to FAT16.
I think you meant FAT32. FAT16 is less efficient and has a partition size limit of 2GB.
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Old October 13th, 2013, 12:35 PM   #23 (permalink)
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Hello,

I sd card wont get recognized anymore after I updated my S4.
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Old November 10th, 2013, 12:00 PM   #24 (permalink)
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I've been using my Samsung 64gig micro sd flawlessly since the S4 first came out.
I awoke this morning to find a message my sd card is blank or has the wrong formatting.

I did start to upload a youtube video yesterday and cancelled, but then uploaded just fine and my phone worked flawlessly all evening until this morning when I woke.

My computer won't even see it at all.. its invisible..... normally it sees it just fine.

I wasted 50.00 bucks buying "card recovery Pro" and it too could not see my card even though it scanned until it hit 1-- percent but no files ever showed.
My drive manager in windows 7 pro can't see it either....

If I try to reformat, it just loops and again tells me the same message.

I popped a 4 gig card in and my phone reads it perfect...

the card simply died?

I do use the samsung wireless charger but I never experience undue heat etc.... what gives?
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Old November 10th, 2013, 07:43 PM   #25 (permalink)
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Muhnamana & windstrings: By any chance, did either of you ever defragment the sd card when you had it attached to your computer?
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Old November 10th, 2013, 08:11 PM   #26 (permalink)
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Not me, I know that's tough on SD cards.
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Old November 10th, 2013, 09:29 PM   #27 (permalink)
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Yeah, that's what Iwas getting at. SD cards have a robust but finite number of read/write cycles, and defragging is not only uneccessary, but will greatly shorten their lifespan.
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Old November 10th, 2013, 09:33 PM   #28 (permalink)
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It worked perfectly before.
Almost like the power pathway got cut.. Instantly dead.
I decided to try SanDisk this time instead of Samsung.... Samsung is into everything, at least SanDisk "is" SD!
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Old November 11th, 2013, 08:25 PM   #29 (permalink)
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I had something to happen to my Scandisk 32 GB class 6 SD card, over the weekend. When I unlocked my phone, I got a notification that my SD card was unmounted. (Even though I didn't do it.) All the apps I had moved to the SD card wasn't anywhere to be seen on my phone. I tried removing and reinserting the SD card, doing a power down and restart. Nothing worked. Before I had a chance to trouble shot the problem, it was working again and I haven't had any problems since. Go figure.
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Old November 11th, 2013, 08:57 PM   #30 (permalink)
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You may just have a loose connection to the contacts or needs cleaning.
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Old December 7th, 2013, 08:09 PM   #31 (permalink)
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Quote:
Originally Posted by Punkrulz24 View Post
Unfortunately this is not true. I've been researching the heck out of this issue due to ongoing problems. It seems all cards are susceptible to this problem in the GS4. I'm awaiting my replacement from sandisk as we speak.

My issues: card worked for awhile. Then when unlocking phone it would give me messages about unmounting then preparing SD card. A few days after that it would say it was damaged. After a week the problems stopped for a month, then came back. Now the card is completely dead and /if/ I can get windows to recognize it, it says it needs to format it but it cant.

Other users reported similar things and a few reported same issues with Samsung cards.
I just had the same issue as Punkrulz24. This is on my S4 with a 32 GB scan disk SD card. For the last month or so it has been notifying me that the card was unmounted then remounted without me doing anything to it. Today when I finally decided to take the files off the card and put in a new one it could not be read by a windows machine at all - would not assign drive letter or anything. Inserted back into the phone and now the phone will not even recognize it either - greyed out 'Mount SD Card' under the 'Storage' heading.

Anyone know the cause or if these SD cards can be recovered. I unfortunately had some pictures on there that have not been backed up yet.
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Old December 7th, 2013, 10:10 PM   #32 (permalink)
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I've got a card that died just this eve. I'm running card recovery pro and it's reading sectors and appears to be recovering files.
But after 4 hours it's only 14 percent done.... Well see.
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Old December 7th, 2013, 10:26 PM   #33 (permalink)
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Just downloaded Card Recovery pro and it will not even recognize that my SD card is inserted. Other SD cards are recognized to rule out the card reader on the PC side, so I might be having an issue beyond corrupt files.
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Old December 8th, 2013, 11:33 AM   #34 (permalink)
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Quote:
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Just downloaded Card Recovery pro and it will not even recognize that my SD card is inserted. Other SD cards are recognized to rule out the card reader on the PC side, so I might be having an issue beyond corrupt files.
That's what happened to my other one "Samsung".

Even device manager couldn't see it except the header that it was drive...

Do you charge with an inductance charger too?

Ive wondered about that.
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Old December 8th, 2013, 11:40 AM   #35 (permalink)
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No, I have always used just the USB cable for charging. Not sure if this is coincidence or a possible cause, but I didn't notice the symptoms of the SD card 'mounting' and 'unmounting' in my phone until after I got my new Android update to 4.3 about 1-2 months ago.
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Old December 8th, 2013, 12:17 PM   #36 (permalink)
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Humm... This is another thought!
I've "never" had a card go bad! "years"

Now me and my son in law have within 2 weeks of each other and both have the update "I think". I run the s4, he has the S3.
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Old December 16th, 2013, 09:50 AM   #37 (permalink)
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It seems my issue might be due to the scan disk SD card and not the phone.

SanDisk cops to malfunctioning Micro SDs in Galaxy S3s
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Old December 16th, 2013, 10:32 AM   #38 (permalink)
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I wonder if Samsung is using he same manufacturer?
Mine went so dead nothing would read it period... Not even recovery software.
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Old February 5th, 2014, 02:40 PM   #39 (permalink)
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Quote:
Originally Posted by craigfnyc View Post
I just left Verizon due to SD card and SIM card issues. They changed my SIM card and after researching, they did find issues with Samsung not being able to recognize some Sandisk cards."They are working on the problem", is what I was told. They gave me Sandisk's number to call to see if they will replace the SD card. I think I will just buy a different brand versus trying to get a replacement from Sandisk.
it is not your scan disc. I have triad many brands and nothing works, its the phone.
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Old February 6th, 2014, 06:58 AM   #40 (permalink)
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I have experienced a similar problem to this over the last couple of days. I noticed a couple of days ago that my SD card unmounted unexpectedly but after restarting the phone it was fine. Then a couple of nights ago after a night out I was checking some photos and the gallery kept freezing. Overnight the SD card removed notification appeared and from that point on I could not access the card. I have tried on several PC’s and although one can recognise a card is inserted it cannot access the files and hangs until I remove it. I tried some data recovery software which eventually saw the card but again couldn’t access it.

This wasn’t a Sandisk card but one I got from Kingston (32gb) a couple of years ago and has been faultless in my SGII but now seems to have been killed in my 3 week old S4. Luckily al my photos and videos are automatically uploaded so I have them safe but there was some stuff on there that I would have liked to save. Any suggestions would be appreciated.

I have ordered a new 32gb card now but this problem is a major concern reading the above, I can’t afford to buy new cards too often.
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The all-new Samsung Galaxy S4 is all but guaranteed to be the next top-selling device. The new device is dubbed the "Life Companion" due to its intuitive features. The Galaxy S4 sports a 5-inch 1080p Super AMOLED display, an awesome 13 MP... Read More



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