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Problems with MicroSD card

Hey guys, I've been having problems with my memory card lately. The one that came with the phone got damaged (due to me putting it into my card reader backwards) so I got a new one from Walmart. Since then I've had a lot of trouble. It worked ok for a day or two then at work one day I took it out of my locker and it said "bad removal". The card wasn't touched, it was just sitting in my locker. It has happened again a few times. I can temporarily fix it by reseating the card in the slot but it comes back. Now that doesn't even work. It just comes up saying I don't have a card. I've ruined my otterbox case trying to get this working (it won't grip the phone anymore because I've removed it so many times) and I'm very annoyed. I figured I'd ask if anyone has any idea what could be wrong before I go back to Bell with it. By the way, the phone is stock Android 2.2
Edit: Just realized I posted this in the wrong forum. Mod please move?

anyone got any ideas?

What brand of card did you get? Some cheap cards are notorious failing long before their time.
Maybe its defective. If its still pretty new, try to exchange it.
The other issue is that maybe you damaged the card tray when you inserted the card backwards.

This really sounds like you got some b-ware. You should return it to your dealer.

What brand of card did you get?
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It's a Lexar.
Some cheap cards are notorious failing long before their time.
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Two days? Seriously?
Maybe its defective. If its still pretty new, try to exchange it.
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It worked okay for the first day.
This really sounds like you got some b-ware. You should return it to your dealer.
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WTF is b-ware?

Well I went into Bell and they suggested I try another card so they got one of theirs and it worked fine. It's been okay so far so I guess I'll have to keep it. Only problem is I got a 4gb instead of the 8gb from Walmart for the same price. They wanted another 20 for the 8gb. The guy wasn't totally sure what it was but he assumed it was that their cards have been tested with each phone to ensure they work whereas the otehr is just a generic card. And he mentioned something about it being class 6, whatever that is.

My G2 has been experiencing SD card issues for a month or two now. I've been exclusively on CM7 nightlies, but since nobody else seems to have had this issue, I assumed it was me. Usually when using something that accessed my SD card, the phone would "unexpectedly" remove itself. Sometimes a reboot would mount my card again (can't mount through settings), but oftentimes I'd have to wait it out and reboot after a few days/reboot 20 times in hopes that it'd read it. I would re-set my SD card in the slot several times, but it doesn't do anything.
I'm still at the mercy of it and am contemplating unrooting my device to bring it in for warranty because it is a very big issue that is crippling my phone. I purchased a new SD card, but the problems still persist. Multiple data wipes/rom changes have occured as well as formatting said cards, but it's all the same.
Right now I just flashed CM7 stable (card was working [it plays funny, but if I try to use the camera, it usually dies]), and I hope that my card issues are gone, but I am fairly confident it's a hardware issue.

"Jumping" SD card

Hi everyone,
I recently came into a weird problem with my desire s. The SD card that is shipped with the phone is literally jumping out of its tray resulting in unexpected SD card removal. End when I try to put it back it keeps ejecting with force and it's only by luck that I finally put it back.
So, I wondered, has anyone had problem with their SD card ? Is it a card or a tray problem ? Should I take the phone to repair (it's still under warranty (sort of, because i'm rooted...)) ?

Weird problem, i suggest to rvert to stock an bring the phone to HTC's cures...
Sent from my S-OFFed Desire S

if you are rooted via HTCdev, you shouldn't have any problems with the warranty.
First off, try using another micro-SD card, and if the problem persists, then it's clearly the tray
I guess this shouldn't be said, but in case you don't have access to another micro-SD card, you can buy a micro-SD card from amazon, try it for 20 days, and then return it and get a full refund, even for the shipping.

GS3 destroying SD cards?

My shiny new Galaxy S III has now destroyed two 32gig micro SD cards on me. About two weeks after I installed the first card, my phone started giving messages about the SD card being improperly removed, then it would immediately try to re-mount it, then would say it was removed again, then finally started just repeating the "unable to mount SD card" error until I physically removed the card. I argued with best buy to give me another one, and now today (about two weeks after installing the new one), the same thing happened. I put the card into a USB reader to try it on my computer, and now even my PC does not recognize the card.
Has this happened to anyone else? What can I do to fix this?! I pre-ordered the phone from verizon, so I'm now well out of warranty replacement time.

codeman0624 said:
My shiny new Galaxy S III has now destroyed two 32gig micro SD cards on me. About two weeks after I installed the first card, my phone started giving messages about the SD card being improperly removed, then it would immediately try to re-mount it, then would say it was removed again, then finally started just repeating the "unable to mount SD card" error until I physically removed the card. I argued with best buy to give me another one, and now today (about two weeks after installing the new one), the same thing happened. I put the card into a USB reader to try it on my computer, and now even my PC does not recognize the card.
Has this happened to anyone else? What can I do to fix this?! I pre-ordered the phone from verizon, so I'm now well out of warranty replacement time.
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I have a 32gb MicroSD card and haven't had a problem. I do wish I could use it more as internal memory rather than hardly usable external storage...but that's a different issue.
Sorry I couldn't help, but just wanted to say that Galaxy S III does support that much external storage. Maybe a hardware issue? Try troubleshooting it with another MicroSD card.

codeman0624 said:
My shiny new Galaxy S III has now destroyed two 32gig micro SD cards on me. About two weeks after I installed the first card, my phone started giving messages about the SD card being improperly removed, then it would immediately try to re-mount it, then would say it was removed again, then finally started just repeating the "unable to mount SD card" error until I physically removed the card. I argued with best buy to give me another one, and now today (about two weeks after installing the new one), the same thing happened. I put the card into a USB reader to try it on my computer, and now even my PC does not recognize the card.
Has this happened to anyone else? What can I do to fix this?! I pre-ordered the phone from verizon, so I'm now well out of warranty replacement time.
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Gotta be the cards you're getting I would think. I had a 16gb card that came with my Droid x almost 3 years ago in it for almost 2 months before the card finally crashed.(I'd abused that card tho, carried it in my jeans pocket, left it sitting on my table etc) Then I put my 64gb in it. It's been a little over two weeks now and no probs with it. I've written too it and erased and so on so I've actually used it. It's almost full now actually lol.

I have that same 16 GB from the droid x. Do I still need to format it if I flash a ROM? And how do I check what format its in
Sent from my SCH-I535 using xda app-developers app

My 32gb card was doing that on stock until I finally installed a custom rom. No problem since.
Synergized GS3

SD card gs3 issue
I also had trouble with my external 16gb card after flashing 2 ROMs (synergy & beans v9). I was not even able to get a computer to recognize the sd card after the flashing.
I thought it had to do with using a stock, then rooted stock, then custom kernel. i thought the combination and repeated TBU access over a 4 day period just trashed it. maybe there is more to the story?

1) What is your ROM flashing history (what roms, how long were each installed)?
2) Which rom did you notice the problem on?
3) Were the original and replacement cards the same make/model?
4) What format were the cards in (FAT32, exFAT, or other)?
5) are/have you overclocked your cpu?
Sent from my SCH-I535 using xda premium

bby144 said:
I have that same 16 GB from the droid x. Do I still need to format it if I flash a ROM? And how do I check what format its in
Sent from my SCH-I535 using xda app-developers app
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nope. all i did was take my 16 gig from my droid x (that OEM card is tough) and slap it in my s3.. and it works.

mybook4 said:
1) What is your ROM flashing history (what roms, how long were each installed)?
2) Which rom did you notice the problem on?
3) Were the original and replacement cards the same make/model?
4) What format were the cards in (FAT32, exFAT, or other)?
5) are/have you overclocked your cpu?
Sent from my SCH-I535 using xda premium
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Thanks for the responses guys. I'm still fully stock, I haven't done anything to the phone (yet). I don't know what the format was, I just put them straight into my phone and let it do whatever it wanted to do. The original and replacement are the same make and model, from the same store. So before i panicked too much, I was considering buying a new/different card from amazon and seeing if it does the same thing still.
Just didn't know if anyone else was experiencing this, or had any thoughts on why that would randomly happen on a completely stock phone?

codeman0624 said:
I was considering buying a new/different card from amazon and seeing if it does the same thing still.
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That sounds like your best bet. There are plenty of crappy cards out there. My ADATA 8GB class 10 has been great so far. I have noticed that the GS3 gets really hot right near the cards (micro sd and sim). Can't be great for the cards long term.
I've had my VZW GS3 since 7/5 and have been fine with my card. I've seen plenty of people who've had trouble with FAT32 vs exFAT, but none who have lost their card.
I have seen a ROM break cards before (an early AOSP gingerbread build for the Fascinate claimed one of mine), so I've actually been looking. This is the first thread I've seen.
Sent from my SCH-I535 using xda premium

mybook4 said:
That sounds like your best bet. There are plenty of crappy cards out there. My ADATA 8GB class 10 has been great so far. I have noticed that the GS3 gets really hot right near the cards (micro sd and sim). Can't be great for the cards long term.
I've had my VZW GS3 since 7/5 and have been fine with my card. I've seen plenty of people who've had trouble with FAT32 vs exFAT, but none who have lost their card.
I have seen a ROM break cards before (an early AOSP gingerbread build for the Fascinate claimed one of mine), so I've actually been looking. This is the first thread I've seen.
Sent from my SCH-I535 using xda premium
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I've also noticed it gets really hot toward the bottom of the phone. Now that I think of it, both times I noticed the SD card issue right after taking the phone out of my pocket. Maybe it's just getting too hot? I wonder if my case is also holding in a lot of the heat and making it worse? I wish there was a way I could test things without breaking an SD card every time!

My GS3 fried a new 32gb card that I put in it after about 3 weeks. Randomly got an "unreadable SD card error", can't correlate with any specific activity. I reformatted the SD card & it works again in the phone. I was rooted, running stock at the time. Maybe it's the heat, but I don't recall it being hot at the time (I also don't recall it not being hot...)

Try sandisk.I was having problems with lesser brand
Sent from my SGH-T999 using Tapatalk 2

I have been using the 32 GB San Disk brand card that came with my thunderbolt and it's been working great.
I really don't know what could cause that to happen to a card and I haven't noticed any other reports of it happening with this phone.
If it comes down to it VZW SHOULD give you a replacement because it could be something to do with the card slot in the phone. I would try talking to them if you can't get it worked out.

So going on the theory that maybe it's just getting too hot, I just ordered a 16gig sandisk ultra micro SD card. It claims to be "temperature proof", whatever that means. Hopefully that clears things up, otherwise I'll have to deal with Verizon, and I'll be super mad if they give me a refurbished phone when this issue actually started two weeks after I got the phone.
If I don't post back here then you can assume all has gone well!

16gb card from droid x
same as others, used the same 16gb card from my droid x, transferred to the bionic when it was released, and now have been using it in the GIII since release. no issues.

I don't believe the phones are getting too hot to do the damage. The hottest temp my battery has gotten had been 106 and they say that heat damage isn't even a concern until around 140 or so. I would think the cards could take the same if not more than the batteries.

I had a similar problem, my sd card wasn't destroyed, but it would randomly become unmounted. It started happening after I hooked my phone up to my corporate email and it forced me to encrypt my device. After I removed the corporate account it stopped happening. This was all on stock TouchWiz from the factory.

codeman0624 said:
My shiny new Galaxy S III has now destroyed two 32gig micro SD cards on me. About two weeks after I installed the first card, my phone started giving messages about the SD card being improperly removed, then it would immediately try to re-mount it, then would say it was removed again, then finally started just repeating the "unable to mount SD card" error until I physically removed the card. I argued with best buy to give me another one, and now today (about two weeks after installing the new one), the same thing happened. I put the card into a USB reader to try it on my computer, and now even my PC does not recognize the card.
Has this happened to anyone else? What can I do to fix this?! I pre-ordered the phone from verizon, so I'm now well out of warranty replacement time.
Click to expand...
Click to collapse
I have had my 64gb SD card for a month and so far nothing went wrong. did you buy your SD cards from a reputable source? I have always used sandisk SD cards try buying one from Sandisk or even Samsung. if you bought your card from ebay make sure the card works, I have heard that some times people sell damaged cards for very cheap. But other than that good luck.

16 GB class 10 sandisk 30 mb/s version died on me with this phone after 2 weeks, stock ROM, formatted with phone. It was brand new.
The error I had was it became read only. And no it was not fixable, I tried everything. Low level format, checking permissions, different OS's, putting it in SD adapter and messing with lock switch on there.
I read class 10s are more prone to die quicker and aren't necessarily better, but just different from a lower class. Ie a lower class will last longer because it read and writes differently and doesn't skip certain safeties like a class 10 does.
Running a class 4 16gb sandisk now and it is annoyingly slow.
Sent from my SCH-I535 using xda app-developers app

[Q] atrix 2 sd card not recognized

I have checked other threads, and this is not the same issue. The phone will say SD card unmounted, or just not think one is inserted.
The first thing I did was switch out the SD card for another class 4 two GB card, and then a class 8 sixteen GB card. Both were checked against other phones, and reformatted in fat32. All of them worked in other phones except for this atrix.
I've tried for over a year to get it fixed under warranty by my carrier says it is the SD card even though I have tried several to no avail.
I have factory restored this phone twice, and there was no change in the SD card status.
I did find a mention that the daughter board that controls the flash, and SD card can go bad. So I tried wiggling it as I inverted the card, and it gave me a new error "blank SD card," and then proceeded to say the card was not there.
So am I correct in assuming that the daughter board is bad, and just spend the $8-20 to replace that microboard?

If you are sure the cards are good, which it sure sounds like they are, I would then say it is for sure a hardware problem, before you go buy a new part and have to open things up, I would check and see if you can fiddle with the pins that contact the card. i.e. bend them too get better contact, or at leas clean the area out. if that doesn't work, a new board aught to do the trick.

From What you just said, I feel that it is either an hardware issue.. check if the slot is clean.
Which version of android are you running? It is possible that it can be a software issue too.(just my guess) try updating to better version.
exsulis said:
I have checked other threads, and this is not the same issue. The phone will say SD card unmounted, or just not think one is inserted.
The first thing I did was switch out the SD card for another class 4 two GB card, and then a class 8 sixteen GB card. Both were checked against other phones, and reformatted in fat32. All of them worked in other phones except for this atrix.
I've tried for over a year to get it fixed under warranty by my carrier says it is the SD card even though I have tried several to no avail.
I have factory restored this phone twice, and there was no change in the SD card status.
I did find a mention that the daughter board that controls the flash, and SD card can go bad. So I tried wiggling it as I inverted the card, and it gave me a new error "blank SD card," and then proceeded to say the card was not there.
So am I correct in assuming that the daughter board is bad, and just spend the $8-20 to replace that microboard?
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Galaxy S7 has corrupted my SD card

I have had my S7 since pretty much the beginning, I was fortunate enough to receive mine fairly early compared to others. Along with purchasing my new phone, I got a Samsung 64GB EVO Class 10 SD card to take advantage of the expandable storage. Everything had been going find until earlier today. I noticed that I got a notification that my SD card was corrupt, I didn't think it was that big of a deal as I didn't have very much data on the card as of yet so I clicked the option to format it. The phone seemed to be having issues reading the actual card as it couldn't seem to format it, an error kept popping up saying that the command had failed. I then put the SD card into my laptop to see if I'd have any more luck with it, and sure enough windows told me that the only way the card could be read was if it was formatted. After formatting the card through my computer, I put it back into my phone. It worked for about 5 minutes or so before telling me it was corrupt again, I'm not exactly sure where to go from here.

I had this Samsung 64GB EVO Class 10 Micro SDXC Memory Card with Adapter (MB-MP64DA/AM) from amazon with my S4 with no problems since it went on sale back in December. Last Friday I got the same message that it was now corrupt and I need to format it. My computer cant see it and I have some intense data recovery software that cant help either. Since those little SD cards have a 10 year warranty I got on the phone to Samsung. I spoke with a Samsung Galaxy expert and they advised me to call their Micro SD support team at 1-800-726-7864. I'll call them tomorrow and report back what they say.

Prolly got a fake from amazon

Amazon do insist they don't sell fake cards, however I have had the exact same problem with the exact same memory card, also bought off amazon. I've used this card in a few different phones with no issue, however upon installing it in my GS7, within a few days I got the same error message as described here. I have contacted Amazon and have had a replacement card (same one) and will see how it goes. I'm on about day three so far with no apparent issues. Tick Tock Tick Tock.....

I'll probably call them up also.. but I think I'll see what happens with yours before I just destroy another SD card

Just got off the phone with Samsung. They're sending me a RMA form to fill out through my email for a replacement. After the whole amazon fake SD card fiasco they're going through they are being very helpful so far. If you can return to amazon it will probably be quicker but I am at day 100 or so with this card.

I think I have the same problem. I have a Samsung card also (not evo) and have used it in several phones without a problem until now. In my case the card corrupts at reboot. I managed to f around and somehow the card was readable again (after re-inserting several times). However on the latest reboot I the phone no longer detects the card at all.
I doubt I have a fake card as I have been using it for over a year now and almost filled the capacity (64GB). I even formatted it when I first inserted into the GS7.
I have since ordered a new card but I hope this phone is not going to be killing cards!

RMA received. Samsung wanted a jpg or pdf of sales receipt and a pic of the back of the card. Card will be mailed to Samsung at my expense ($2 ish) and a new unit will be sent out. Fingers are crossed that the fast charge tech isn't sending card killing voltage spikes through the phone.

Just a quick update guys, in case it helps anyone, but my new card replaced from Amazon is working OK so far without issue.

Update, whilst it hasn't killed my SD card, I've just had an update and after that it refuses to write to any memory card I have. So I'm returning it tomorrow, it will read OK, but not write to.

I'm using a samsung pro+ 64GB card with my S7 and that annoying SD card notification keeps popping out. Sometimes I could see another notification said SD card removed/unmounted unexpectedly then the annoying notification. I've tried using an old 32GB TF card and I've never seen this annoying notification.
My guess is that S7/S7E have some compatibility issue with even Samsung's own newer and faster SD cards.
I'm waiting anxiously for an OTA hoping this is a software issue. I hope my S7 won't corrupt my SD card.

Update: Just received my replacement micro XD from Samsung in less than 2 weeks, very cool. I like their new usb card reader, very slick. Well see how long this lasts. I also just had a OTA update to the S7. Lets see what they fixed.
BlueT

Same issue
Exactly same scenario as bensto23 first described, same SD card, however....I replaced that 64GB Samsung EVO with a Patriot 128GB and after about 2 weeks the same message popped up. But when I put this card in my laptop it couldn't see a problem (the Samsung was unreadable). So the Patriot went back in and everything was good until about a week later....same thing. S7 says the card is corrupted but it's not and works fine after removing and replacing. Haven't had time to call Samsung support but obviously this looks like an ongoing issue. So frustrating since this phone has been so flawless otherwise.

My S7 is in for repair as I type this. It's 6 weeks old. I had a 64GB SD card that I had used in my S5 for 18 months with no issues. I didn't have an S6 due to lack of SD slot and not waterproof. At 3 weeks old, the 64GB card developed a problem. I removed it from my S7, put it in my laptop, only to find it was corrupted, and I couldn't do anything with it. I put it down to being one of those things, and bought a 128GB SD. 3 weeks in again, and exactly the same fault! It is a hardware issue with the S7. I put my 32GB SD card in from my LG Leon, and the S7 wouldn't read that either. Be interesting to see what Samsung will do about replacing cards that have been destroyed by a phone!

Think i might be facing the same problem. When i put in a Sd card my phone freezes up a couple of times a day and without a sd card it running fine. I even think it messed up my first sd card because even after a format i cant write files bigger then 1 gb onto the card without getting a error on the computer. Also i can only do a quick format and if i do a full/long one it will eject the drive and fails every time. Im to scared to try a new sd card and think ill send this one back for warranty.

corrupt sd card
i have same problem with A7(2016) but i use 64GB U3 kodak SD card. it works fine until last week. i saw that i cant play musics so open memory by ES file Explorer and it says that empty. but when connect it to my loptop it had no problem and i find some files that recently created and remove files with 0 byte size. then connect memory to my phone it works nice but some day later the sd corrupts again and i repeat every thing i do last time and it work but sometime later corrupt again. i am confused how i can stop this cycle
help if can please
sorry my english language is not good

Every phone I've had, every forum for that phone, complains of issues with Samsung cards, I would never touch Samsung cards. I've never had an SD card corrupt or fail but then i've never bought a Samsung card.

Got the same problem. Every time I reboot or unmount the external sd-card, the card becomes "corrupted". When I put the card in my PC it's just fine. I can read and write to the card.
I've got the 128gb sd card from Samsung (got it for free with the purchase of the phone).
Getting sick and tired of having manually backup and restore to my SD-card when I reboot my phone. Does anyone has a solution for this?
**EDIT
This must be software related, since when I do not reboot, the SD-card works perfectly fine. It only happens when I reboot or unmount.

had the same problem in my s7, it turned out for me the culprit is when I enable the pics saving to extsd option in camera. this corrupts my extsd.
before extsd it worked perfectly fine for days and weeks and survived plenty of reboots in the S7 (and in my previous phones as well), but as soon as I enabled the pics saving from camera to extsd option in the s7, at next reboot the message about corrupted camera came out. I can replicate this problem with these exact steps, so it is 100% sw issue for me, and related to that option in camera settings... if I use my intsd for camera pics, everything works just fine, I can see and access all my other content in the extsd etc.......