[Q] Unexpected sd card unmount - HTC One V

I just bought an HTC one V.
As soon as I put my SD card, it says Unexpected sd card unmount.
My card is not dying or anything like that. It was working fine in my Samsung captivate glide, works perfect in my notebook and PC.
Card is a Kingston microSDhc class 4 16GB.
What can I do to fix this problem?
Already tried hard resseting my phone and no luck.

I experienced the same issue , faulty card. It was keeping unmont few times a day
Replaced SDHC works fine.

Related

Anyone have problems with 8gb microSD HC Cards?

Hi all
I have had a SanDisk 4gb microSD HC card for ages and it's worked perfectly. I recently bought a SanDisk 8gb one and have a permanent problem with it. When inserting it, sometimes my TP2 either fails to recognise it or if it does, sometimes it freezes some functions. The main problem is that the clock completely freezes. Unfortunately, it doesn't happen every time.
I put the card into a Card Reader on my laptop and ran a CHKDSK on it and it came up as OK.
Has anyone encountered the same problem or any solutions as to how to fix it. If I go back to the 4gb, it works fine so it's not the slot or device but doesn't look like the card either. I can copy stuff with my laptop over and back to the card no problem.
C
I have a SanDisk 8GB Class 2 SDHC card, and have no problems with it.
Try doing a full format on the card to see if that helps after copying all your files off it.
In addition to that, reflash your phone with a Stock ROM and then flash it with the current ROM you are using. Do this without having any card in the phone.
Also, If you have a can of compressed air lying around, use the nozzle tip and blow into the microSD card slot of the phone to try and clean it out.
Hopefully this helps.
No problems here. I started with a Sandisk 8GB Class 4 microSDHC and now have a Sandisk 16GB Class 2, and haven't had any problems with either one. I'd try a full re-format of the card and see if that helps.
I started with the Vodafone Stock ROM before changing for Deepshining v12. Could a ROM version cause issues or maybe the Radio ver ?
And how can I tell what Class my SDHC card is ?
C
i use a 8gb sd card.. no problems with it..
My 8GB Class 4 SanDisk MicroSDHC works perfectly. Sounds like you have a faulty or counterfeit card.
I'm using an 8gb class 4 Dane Elec (sp?) micro sd, and it works fine.
To see what class it is, look at the card. Does it have a circle with a number inside of it? It will either be 2, 4, or 6. If there is no circle with a number it's most likely a class 2.
I had the same problem which i actually solved by backing up the card and choosing to format it via my PC, check it out too.
I did a full format of the card using FAT32 but still no different. My card is a Class 2. My understanding of counterfeit cards was that they could only store a fraction of the supposed total whereas I can fit 8gb on this.
C
I started with a 1gb class 4, then 8gb class 2.
now im using 16gb class 2.
Ive never had any problems with any of them.
Sounds like a problem with the card.
You could buy another 8gb and try that one. But you'd have to fork out more money just to see if it is the card.
Best i can suggest im afraid
Hi all again,
I've tried the 8gb card now in a HTC Kaiser (never knew it could take an 8gb) and it works perfectly. Therefore, it must be something with my Touch Pro2. So would it be the ROM or the Radio which could potentially screw up access to the 8gb card ?
C

Memory card issue

Hey guys,
It started when My phone became very hot, and then I turned it off. so, when I turned it on it said my memory card was damaged.. After It started to work again. So, I didn't look into it and yesterday my gs3 turned off by it self and it said my Memory card is damaged. I just re-formated it again. My memory card is a Patriot 16gb class 10. Should I contract Patriot? my memory card still has warranty....
Most likely the memory card (micro SD) is damaged. Have you tried removing the memory card and seen if the problem is gone? If that works then you can also try using a different memory card and see if the issue is still present (there is a possibility the memory card reader is defected too).

Note 2 killed my Sandisk Micro sd HC card?

First, sorry for my bad english. i hope you will understand my problem.
I am using a genunie sandisk 32gb micro sdhc card. used it with my old xperia t too...
Started using it with my Note 2 since 2 months. But i got an error yesterday, that my card is removed because format is not ok. i did nothing with the card or not removed from my phone. My phone was also turned on since 4 days. And today asked me for formatting micro sd card. i had no time to check it on my computer so i choosed format it. Note 2 has formatted it. After that it didnt see my card.
In the storage menu it shows no ext.card. i tried to format my micro sd card on windows and on macbook but they dont see my card.
I lost my photos and some files... i dont care about them now, i just want to format my card but i think its dead now...
Anyone has experience? What shall i do now?
Now i see this again, choosing format but nothing happens...
Sent from my GT-N7100 using Tapatalk 2
Do you see it listed in Disk Management in Windows? It could be that it is not being mounted as a drive, but seen as a RAW partition by the system, in which case you can format it from Disk Management and start using it again. Don't look for the card under Volumes, but where disks are listed, in which section you'll see Disk 0, Disk 1 and so on. Good luck
Try to format your card using SD Formatter https://www.sdcard.org/downloads/formatter_3/
Thanks for your replies. I will try it when i arrive to home from my work.
Sent from my GT-N7100 using Tapatalk 2
mr.inter said:
Do you see it listed in Disk Management in Windows? It could be that it is not being mounted as a drive, but seen as a RAW partition by the system, in which case you can format it from Disk Management and start using it again. Don't look for the card under Volumes, but where disks are listed, in which section you'll see Disk 0, Disk 1 and so on. Good luck
Click to expand...
Click to collapse
nope, shows nothing. no luck.
if i insert sd card to note 2 than i see that notification. (i attached screenshot.) i am trying again format on note 2 but nothing happens. i will be crazy
I had a 64GB SanDisk card. I bought it in December. Last week, somehow, it became write protected! I could not format it, either in the phone or Windows and could not write any data to it.
I phoned SanDisk and they said they would replace it. I managed to copy the data off it. I told them I couldn't send the card back to them, as I couldn't delete the data. They just asked me to photograph the card before and after I cut it in half. Now they are sending me a new card.
However, as there seem to be many problems with SanDisk cards, I will never use one again. I bought a Samsung 64GB instead.
sent from somewhere
Don't think its the phone, rather the SD card itself.
after getting a Samsung MicroSD card, there are no further problems.
the Sandisk card even has problem being detected by a windows 7 machine
Sandisk and Lexar are both garbage! They have the worst quality control ever. I don't even understand how they are so popular.
I have mailed to Sandisk support, they wanted photos of card with serial number and where i bought it.
than they want me to break my card and send again photos of broken card. Now, they will send me new card...
Had the problem myself with a 32 gb sandisk class 10. The phone said the card was damaged. I used the card adapter that came with the card and when inserted in my pc card reader, surprise: it worked like nothing happened! Saved data, format it with sdformater and i use it now.
I mention a kingston card adapter didn't do the job. It kept saying the card was not formatted.
voyager20021 said:
Had the problem myself with a 32 gb sandisk class 10. The phone said the card was damaged. I used the card adapter that came with the card and when inserted in my pc card reader, surprise: it worked like nothing happened! Saved data, format it with sdformater and i use it now.
I mention a kingston card adapter didn't do the job. It kept saying the card was not formatted.
Click to expand...
Click to collapse
Yes SD Formatter is kind a low level formatter. If flash storage is not physically damaged, SD Formatter solves most of the problems
defo not the phone but the card itself. Has happened to me more then once. Some card's are just ****
well from personal experience. I have to say first hand, i honestly think its the phone. the same thing happened to me. i have the att note 2 and a centon 32gb class4 card and out of nowhere, i get a message that my card was removed unexpectedly and now my card doesn't work on ANY DEVICE. I've tried multiple card readers, different software, different computers, even tried a mac, took my memory card to s specialist. NO DEVICE recognizes anything even connected. now i thought, ok maybe a faulty card but my wife with same phone and a sandisk 32gb class 10, SAME THING happened. my friend with a Kingston 32 gb and a sprint note 2, his memory card died as well. THREE different brands, and same type of phone. too much of a coincidence, could be it really cant handle 32gb. now im using i think 8 and its working fine for now.
google this problem and youll see its a bigger problem then you think. BACKUP YOUR DATA, i had to learn hard way. :crying:
luilui8812 said:
well from personal experience. I have to say first hand, i honestly think its the phone. the same thing happened to me. i have the att note 2 and a centon 32gb class4 card and out of nowhere, i get a message that my card was removed unexpectedly and now my card doesn't work on ANY DEVICE. I've tried multiple card readers, different software, different computers, even tried a mac, took my memory card to s specialist. NO DEVICE recognizes anything even connected. now i thought, ok maybe a faulty card but my wife with same phone and a sandisk 32gb class 10, SAME THING happened. my friend with a Kingston 32 gb and a sprint note 2, his memory card died as well. THREE different brands, and same type of phone. too much of a coincidence, could be it really cant handle 32gb. now im using i think 8 and its working fine for now.
google this problem and youll see its a bigger problem then you think. BACKUP YOUR DATA, i had to learn hard way. :crying:
Click to expand...
Click to collapse
Happened the same yesterday. Trascend class 4 32Gb SDHC. Completely dead.
Checked with a macbook, but the card isn't detected anymore.
In my opinion, the NoteII may haves some problem with sd card (maybe the voltage regulators aren't correctly programmed, or something similar).
But frankly, I do not have any proof to support this, just a sensation.
Cheers
chkdsk
erhangulsum said:
First, sorry for my bad english. i hope you will understand my problem.
I am using a genunie sandisk 32gb micro sdhc card. used it with my old xperia t too...
Started using it with my Note 2 since 2 months. But i got an error yesterday, that my card is removed because format is not ok. i did nothing with the card or not removed from my phone. My phone was also turned on since 4 days. And today asked me for formatting micro sd card. i had no time to check it on my computer so i choosed format it. Note 2 has formatted it. After that it didnt see my card.
In the storage menu it shows no ext.card. i tried to format my micro sd card on windows and on macbook but they dont see my card.
I lost my photos and some files... i dont care about them now, i just want to format my card but i think its dead now...
Anyone has experience? What shall i do now?
Click to expand...
Click to collapse
I had the same thing happen to me. Put the card on a windows machine, and run
chkdsk /f
this makes the disk readable again. At least, it did for me. One problem was that even though the disk was readable, it seems some
files had errors, so the media scanner ran forever and used up lots of battery when the fixed card was used. I ended up not using that card any
more.
Same problem with me... 32gb microsd hc class 10 sandisk... In sn2 n7100 it says blank card or unsupported filesystem... In windows 7 laptop... It is not detected.... Chkdsk does not work in cmd prompt as the card is not detected... Unable to do anything with the card as it is not detected... Cannot format, cannot see in disk manager. Card is also not read in other phones.
PLEASE help as it had a lot of information and i have NO money to buy a new card.
Sent from my GT-N7100 using xda premium
Samsung and SanDisk ultra disk 32gb don't go well together. .... IT will fail after a few days
happens on s3, note 2 and note 8
I got Samsung 32gb class 6 cards for my note 2 and 8... No issues .
Sent from my GT-N5100 using Tapatalk 2
same thing
same this is my second card in 11 months.the first a 32 gig sandist and the 2nd a 64 gig Samsung class 10.both dead,they are unreadable.i beleave its the phone
Here the same
Galaxy Note II i317m Telcel
MicroSD 16 GB Kingston Class 10
Actually, 2 MicroSD, the first time I Check the Warranty of the Card with the dealer, this time the card is out of warranty.
And is the same problem, the card is unmounted, check on PC and is Dead

just had a 32gb sandisk ultra micro sd die in sg4

Bought this ultra micro sd class 10 sandisk about a year ago. Had it in my htc amaze until may 1st when I got the s4. Today my sd dissappeard. I ejected and inserted multiple times but the phone wont even acknowledge it has a sd card in it. Bought a new identical sd card and it was recognized right away..
plugged bad sd into computer and the computer didnt acknowledge having it plugged in until the 5th time I tried.
was able to copy all my files thank god. 24gigs of work and info almost lost..
anyone else think the sg4 did this some how or could it just be a rotten sandisk micro sd?
input greatly appreciated.
SanDisk had issues with the 32/64GB MicroSD's; im on 64GB number 3 right now, which has worked fine for about a month (the first two would randomly dismount usually once a day on my Atrix 4G and also stop responding on my PC randomly), this one does not. Try getting it replaced or getting a different brand. Normally SanDisk is pretty rock solid (i use sandisks exclusively at work as they are the only certified cards for the recorders i use, and the only brand ive never had problems with. i use mostly CF and also sometimes SD/MicroSD)
Honestly i think the MicroSD thing is all SanDisk related; specifically to 32GB and 64GB Class 10's (the gray/red units). The older 32GB Class 4 black MicroSD's dont have issues.
Crazy update. 2nd 32gb ultra micro sd un mounts and mounts every 9 seconds. Or if you tap the card or shake/move phone slightly it un mounts and re mounts.. I put in a 1gb sandisk black class 4 micro sd and shook and tapped phone over micro sd and it did not unmount at all stood in fine.
this is terrible quality on sandisks behalf. I dont even know if I have receipt for them. I bought both at bestbuy tho...
criticalchild said:
Crazy update. 2nd 32gb ultra micro sd un mounts and mounts every 9 seconds. Or if you tap the card or shake/move phone slightly it un mounts and re mounts.. I put in a 1gb sandisk black class 4 micro sd and shook and tapped phone over micro sd and it did not unmount at all stood in fine.
this is terrible quality on sandisks behalf. I dont even know if I have receipt for them. I bought both at bestbuy tho...
Click to expand...
Click to collapse
I know man, i like sandisk but i have had issues with their cards since the s2. I just ordered a 64gb samsung off of amazon. You should give samsung a go.
Nvr had one prob any sandisks in my Htc devices.. I guess this is a underlying samsung issue
criticalchild said:
Crazy update. 2nd 32gb ultra micro sd un mounts and mounts every 9 seconds. Or if you tap the card or shake/move phone slightly it un mounts and re mounts.. I put in a 1gb sandisk black class 4 micro sd and shook and tapped phone over micro sd and it did not unmount at all stood in fine.
this is terrible quality on sandisks behalf. I dont even know if I have receipt for them. I bought both at bestbuy tho...
Click to expand...
Click to collapse
I bought a SanDisk 64GB microSD card at BestBuy. So far so good works like a charm...*knocking on wood*. I had a 32GB Lexor that I used in my Sensation 4G and it died on me after about 2 years. Was not able to recover the data either. I did backup the data every 2 - 3 months, but still lost a lot of data. :crying: With the S4 I'll probably end up backing up data about every 2 weeks just to be safe. The free 50GB from Dropbox came at the right time.
I bought a samsung 64gb since i read a bunch of reviews that said the Sandisk 64gb would randomly lose all the data on the card and the card would just die. Some said a week after getting it, others said months. I didn't want to risk losing all my pics and stuff
Sent from Flip's Galaxy S4
Glad I'm not the only one having issues. I bought a 32GB card and had a bunch of issues with it. It would unmount randomly and the gallery was always slow to load up the contents. I bought a 16GB one and it's been fine. Very fast to load, no issues. I ran an hour long SD card test on it Saturday and it passed with no issues and decided to try it again and so far it's been perfectly fine.. Weird.
i had the same issue with my S3 and my SD card it would just become unreadable out of no where..
if your stock then the only reason i can come up with is nolonger valid
I think i'm going to start utilizing these instant sync apps (G+, Dropbox) just out of fear of losing pictures
There are already multiple threads on this. if you get a damage sdcard warning, plug the card into a PC, open cmd & type chkdsk /r /f <drive_letter>. it will take time to fix your sdcard. Backup your data & reformat if you wish. I get this occassional but with chkdsk I'm have no worry since I can repair & already have backup in place.
With that all said, it is disappointing to have to go through this. What I noticed so far is that it's only happening on my exFAT & FAT32 formatted 64gb sdcard for me. I never had this kind of issue on my 32gb sdcard.
I think this might work
I've been having issues with my 64gb sandisk ( unexpectedly removed error ) & remounting or formatting has not done the trick until now. Formatted card to fat32 with my PC which I have done multiple times & still had issues, but now after a fresh format to fat32 using my PC I decided to format with OUDHs recovery under mounts and storage - format extsd & have absolutely no issues as of yet. No more errors finally. Lmk if it works for you guys.
Thats weird. I've had the same problem with my 32gb sd card i thought it was just the sd card but it seems like a lot of other people are experiencing this as well...

So which Micro SD card DOES work? Please Report in.

I thought I would start a thread on which Micro SD cards were recommended vs. those that fail early or are simply not compatible. I saw a thread earlier that appeared to show that some cards (and sizes) were better than others.
I can report that the Samsung 64GB card (says Class 10, HC, 24MB Read, 7MB Write) does NOT work in this tablet. I was able to use it just fine in my Note 2, and a laptop. However, the card doesn't work properly in my 2014 Note 10.1. An older Pansonic 16GB MicroSD card worked just fine however. I've tried formatting it in other machines, and it's still a bust. Currently, these cards are selling like wildfire on Ebay for $30.
So, what DOES work for a 64GB card? Any help is appreciated by myself and I'm sure a lot of others reading this forum.
Thanks in advance.
I have got a SanDisk 64GB card in mine. Also got the same type in My Note 3.
The SD card issue seems a bit odd, both of my cards were also fine in my older Note 10.1 and the Note 2. I've never had a problem with either of them
Samsung 64GB works just fine.
I have a 64GB Samsung MicroSD and it works just fine, haven't had to do anything to it, worked right out of the box.
Its a Samsung 64GB Class 10, UHS-1, Grade 1, 70MB/s MicroSDXC Pro Memory Card
I always buy memory cards directly from Amazon because there are a lot of fakes out there, so I know for sure this is a genuine product.
This is the exact one I purchased
http://www.amazon.co.uk/Samsung-Mic...5658961&sr=8-1&keywords=64gb+samsung+micro+sd
i've tested my 64GB sandisk on my gn8 for a week now with no issues at all. one day after being put back in the gn10.1 2014 and it's acting up again. files, fail to delete, wrong size reported, inaccessable, etc. the 32GB sandisk works fine. both are uhs-1 formated exfat. take it out without reformatting and it works fine on my gn8 and pc. put it back on the gn10.1 and it won't mount without a reboot.
sandisk works fine
red321red321 said:
sandisk works fine
Click to expand...
Click to collapse
SanDisk 64 gb no problems
I have a 64gb Kingston SDXC10 and so far so good.
Adata 32gb. Perfect. One of the cheapest too.
Sandisk Ultra 32GB works fine in mine. Hurry - all sizes are on sale right now at some pretty good prices. http://www.amazon.com/SanDisk-Micro...&qid=1385692005&sr=8-2&keywords=sandisk+32+gb
Problem solved...
Hey guys, thanks for the info. After some research I discovered that this was indeed a fake card I ordered from Ebay. Looks like this is a common problem as the packaging is *almost* perfect and you really can't tell the difference without some serious research. Luckily, the seller refunded the full amount back to me. Based on your feedback here I've ordered a SanDisk Ultra from Amazon.
Thanks for the help and & Happy Thanksgiving!
-VT
Wow, fake Samsung microSD cards...How did you find out yours was fake?
And to report in, my 32gb Samsung class 10 card works just fine.
Fake Samsung Cards
optimummind said:
Wow, fake Samsung microSD cards...How did you find out yours was fake?
And to report in, my 32gb Samsung class 10 card works just fine.
Click to expand...
Click to collapse
A really good way to check them is to simply try to fill it up. Only 4G of data will be saved and readable, whereas the other 60GB is corrupt.
-T
It's sad that a lot of people get duped into buying fakes. But sites like ebay don't/can't do anything about it.
Memory cards/Usbs should only be bought from reputable sellers only (Amazon, Currys, Play.com etc) as there are wayyyy too many fakes out there.
I'm currently using a Transcend 64GB SDXC UH-1 Class 10 card which was formatted using the tablet.
It works fine except for one annoying problem. When transferring large, singe or multiple files, say 1.5GB+ HD movie or a huge amount of photos, from internal to external storage, the device would freeze. After it starts up again i notice that i can no longer access my SD card even though the device says it's still mounted. The only way i can fix this is by removing and reinserting the card or rebooting the device. Although there's no problem transferring files from a computer straight to the SD card.
Anybody encountered a problem like this? Is there anyway to fix it?
Reiman76 said:
I'm currently using a Transcend 64GB SDXC UH-1 Class 10 card which was formatted using the tablet.
It works fine except for one annoying problem. When transferring large, singe or multiple files, say 1.5GB+ HD movie or a huge amount of photos, from internal to external storage, the device would freeze. After it starts up again i notice that i can no longer access my SD card even though the device says it's still mounted. The only way i can fix this is by removing and reinserting the card or rebooting the device. Although there's no problem transferring files from a computer straight to the SD card.
Anybody encountered a problem like this? Is there anyway to fix it?
Click to expand...
Click to collapse
Yes, I'm having the same issue. Except the SD card will randomly lose the files even though it still shows the card is still mounted. Just recently I was watching a movie from the sd card and this happened.
I am using a SanDisk that was being used in my note 2 for the past year (never had problems with it before).
This is especially frustrating when trying to sync files with Plex.
Anyone have any ides?
thomlh said:
SanDisk 64 gb no problems
Click to expand...
Click to collapse
Same for me
I know I'll sound like a noob, but my 32gb Samsung micro sd card just doesn't seem to work on galaxy note 10.1 2014, yet it worked perfectly fine on my previous note. Would i have to format the card on my computer? A little bit annoying since I don't have a reader for it.
My Sandisk does not work
I have a SanDisk Ultra 64 GB microSDXC Class 10 UHS-1 Memory Card 30MB/s SDSDQUA-064G-U46A that has a lot of problems working in my GN 10.1-14. It has worked fine for a year in the old Note 10.1. The New Note would not even format it. Formatted it in my Galaxy S4, and it kind of works. Often it simply reports no files, although it will report in Settings the correct size and space available. Sometimes I have to reboot several times for the card to work. then sometimes I will try to open a file and get an I/O error. Then sometimes random reboots, especially if I try to unmount it.
I use a Samsung Pro 64GB microSDXC (UHS-1) Class 10 card (MB-MGCGB/AM) reformatted to FAT32. Works great. I've been using the same type card on my LG Optimus G for almost 8 months 100% problem free (also formatted to FAT32). I did have issues with a SanDisk Ultra 32GB in that same phone that used to dismount itself all the time and I know others that have had issues with SanDisk cards in GoPros as well.
ok, so which one of these sandisk ultra microsd cards will work in the 10.1 2014 edition, and what is the difference between them?
http://www.amazon.com/SanDisk-micro...87133701&sr=8-1&keywords=sandisk+microsd+64gb
http://www.amazon.com/SanDisk-micro...87133701&sr=8-2&keywords=sandisk+microsd+64gb
http://www.amazon.com/SanDisk-Ultra...87133701&sr=8-3&keywords=sandisk+microsd+64gb

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