Develop Bugs

SD card unexpectedly removed...

So I have searched for this error and no one seems to have an answer that fits my problem. I got an error after booting that stated SD card unexpectedly removed and gave me a triangle with an exclamation point in the center
the card works fine
it will mount up perfectly from recovery, i even pushed several roms to it and tried (cyanogen, RR, and SkyRaider) all three worked beautifully, but as soon as I boot up BAM "SD card unexpectedly removed" and I can't access anything
the computer reads it just fine so I am pretty sure there is nothing wrong with the card, also with it reading in recovery it seems there is nothing wrong with the phone
is this a problem with ROMs?
I could try to do a factory reset and see if that works... but its really annoying :\
any help?

I would try reformatting the card on your PC. The card may have a bad sector that the PC and Recovery ignore. The phone OS tends to be a little more picky about those sort of things.

bigslam123 said:
I would try reformatting the card on your PC. The card may have a bad sector that the PC and Recovery ignore. The phone OS tends to be a little more picky about those sort of things.
Click to expand...
Click to collapse
This worked
Thank you, I am running good now
I noticed when I was trying to backup my SD card (pictures and whatnot) that some of the files were corrupt
I will make sure I keep a regular backup just in case its a sign of the card going bad
good thing is my titanium backups were all perfect

eyeheartmozart said:
This worked
Thank you, I am running good now
I noticed when I was trying to backup my SD card (pictures and whatnot) that some of the files were corrupt
I will make sure I keep a regular backup just in case its a sign of the card going bad
good thing is my titanium backups were all perfect
Click to expand...
Click to collapse
You are on the right path - don't forget, a good practice is to back up your SD card to your PC regularly.
Why? If (when really) the SD goes wonky, you have a PC backup of the card, and you can get another SD, format it on the PC, load the backups you made, and be back in business in short order.

smtom said:
You are on the right path - don't forget, a good practice is to back up your SD card to your PC regularly.
Why? If (when really) the SD goes wonky, you have a PC backup of the card, and you can get another SD, format it on the PC, load the backups you made, and be back in business in short order.
Click to expand...
Click to collapse
yeah, fortunately I had done this about a month ago
I lost a few pictures that I took recently but overall it wasnt a big loss
I will def be doing this more frequently

Same problem with a twist
I receive the same error only i can't get anything to read the card after it happens. Any help would be appreciated.

Gilead said:
I receive the same error only i can't get anything to read the card after it happens. Any help would be appreciated.
Click to expand...
Click to collapse
My solution was to format and start over, that was the only thing that worked for me

I've gotten this a few times and it is a PITA because it resets all the notification sounds and also the phone reboots. Once it does it, the only way I can get it to work is to remove the card, put it in the PC, let Win7 do a fix and repair errors and then it will work. I tried removing and reinserting, and it would mount the card and immediately give me the 'sd card unexpectedly removed' message.
I tried reformatting, and the sd card worked for a while and then I got the 'unexpectedly removed" message again after a few days. The last time it gave me that message, I just did the repair errors thing again and it's been working without fail for about 4 days now. It seems like it's going to be an ongoing thing though.
I've been googling like a mad person trying to find a real fix for this. I saw a thread on Android central where they guy said he put his wife's card in his phone and it did the same thing; but worked fine in hers. He mentioned it might be related to the 2.2 OTA update. My problem did start after that update.
In another forum thread, someone posted that they bought a new card, and it gave them the same message. So it doesn't appear to be a bad card; which is what I originally thought. I'd hate to buy a new one and have same issue (i have a 16gb card currently).
(sorry for long post)

I have the same problem! I'm using a Verizon HTC Droid Incredible 2. Previously i've been running Froyo 2.2 over the phone with a 16 GB microSD Card without problem. Later i've been using a 2 GB microSD Card and works fine, but now i'm runnin' Gingerbread ROM From verizon with 16 GB microSD Card and the messages "SD Card unexpectedly removed" don't stop.... the card works fine over other phones... even the stereo of my car can read perfectly the card's content.
I don't know if this is a problem with the update or what????
I don't think in the versions of "Bad sectors" because i check everthing and the problem persist.
The problem appears when i'm playing music... later of that the problem appears at the camera, the file explorer or another app that tries to read the SD Card.
I reboot the phone and works fine but after a couple of minutes the same [email protected]$%&t appears again....
I'm tired of reading forums telling me that is a problem with the sectors... that is a LIE!
no matters the class of the card because i've tried with Class 2, Class 4 and works fine.
This night i'll go to the store that solds me that coursed card to change it!
if tomorrow my problem was solved i been writing at this same forum!

daniel_irias said:
I'm tired of reading forums telling me that is a problem with the sectors... that is a LIE!
Click to expand...
Click to collapse
I do not think someone saying it is bad sectors means they are lying.
I think they are merely trying to help you determine what the problem could possibly be.
Sent from my Incredible Sensation 3D using Tapatalk

daniel_irias said:
I have the same problem! I'm using a Verizon HTC Droid Incredible 2. Previously i've been running Froyo 2.2 over the phone with a 16 GB microSD Card without problem. Later i've been using a 2 GB microSD Card and works fine, but now i'm runnin' Gingerbread ROM From verizon with 16 GB microSD Card and the messages "SD Card unexpectedly removed" don't stop.... the card works fine over other phones... even the stereo of my car can read perfectly the card's content.
I don't know if this is a problem with the update or what????
I don't think in the versions of "Bad sectors" because i check everthing and the problem persist.
The problem appears when i'm playing music... later of that the problem appears at the camera, the file explorer or another app that tries to read the SD Card.
I reboot the phone and works fine but after a couple of minutes the same [email protected]$%&t appears again....
I'm tired of reading forums telling me that is a problem with the sectors... that is a LIE!
no matters the class of the card because i've tried with Class 2, Class 4 and works fine.
This night i'll go to the store that solds me that coursed card to change it!
if tomorrow my problem was solved i been writing at this same forum!
Click to expand...
Click to collapse
did you format the card and try again as suggested earlier? That usually clears up any issues with sd cards unless they're fubar'd. Just make sure you back your card up first.

Whenever my card does this I put it into my Windows computer, right click on the card and go to properties/tools/error checking/ and check both boxes and let it run. It fixes my issues every time without formatting the card.

I had that problem a while back with one of Verizon's updates after 2.2. Reformatted card. worked fine in other phones but still said same thing everytine I put it back in the dinc. Ended up getting a new SD card then all was fine.
Sent from my ADR6400L using xda premium

If you have an ext extension on your sd use G-Parted (google it) to format your ext2/3/4 partition.

[Q] Weird problem with SD card!

Hello,
friend got her hands on a htc desire. She let some small shop unlock it before really testing it. Now we got the following problem:
The SD Card doesnt work. At first everything seemed to work okay. She took 52 pictures, even installed on app on the sd card. Then it basically froze.
We can delete half of the pictures and make some new ones. After the phone is rebooted all pictures are gone. Apps cannot be installed on the sd card.
If I remove the sd card and put it in my Nexus One everything works fine. New pictures survive the reboot, old ones get deleted.
When she puts the sd card in her desire, everything is back to 52 pictures and 1 app on it.
You cannot copy stuff like update.zip on the sd card, because the phone will only notice 52 pictures on it... Rom Manager has a "fix" option which doesnt work and partition it didnt help it - if it did anything at all.
We even bought a new 8 gb one, same problem. Some other people reported the same problem in forums, but there is never an answers what did fix it.
Its S-OFF with AlphaRev.
Sadly we both have no idea how to fix it and no android development skills. My plan would be to go back to RUU to see if the problem is still there. If yes, just get a new one from HTC. If no, unlock it again.
Sadly when it comes to roms and the "simple guides" we fail to reproduce even the first steps. "Go to fastboot and enter command XYZ" - yet we cannot enter any commands there.
Any help is welcome.

Can you connect your phone to pc in adb mode? Or simpler: what happened when you are connecting your phone to pc? Does it ask about mass storage mount? Is it in debug mode? If not, I think that it is classical USB-Brick, else... I don't know what is wrong...

I had also a problem with my sd-card.
Put it in a card reader and make checkdisk with windows solved my problem.

Weird, my answer disappeared.
When we connect it to a pc, we can delete files, format it, run scandisk, copy stuff on it. Everything works fine. When we put it back into the phone, the old 52 pictures and nothing else is on it.

And I thought I was the only one…
My problem is as follows, I had with my 1st Desire a 8gig Class 4 Transcend SD card which was perfect and connecting to and from my home and work pc was effortless.
Then my Motherboard burnt out on that phone sent it back and when I got the new one I put my 4gig Class 2 SD which I got with the phone back in and no issues.
A few days later I bought a new 8gig Kingston Class 4 SD ( I lost my Transcend SD card) and after 2 days I would get “SD mounted as read only” so formatted the SD copied my data back to my 8gig Kingston card which worked fine on my PC but the same problem persisted when I put it back in my phone. I was using ADW launcher and kept getting the same errors all the time, then I switched to Launcher Pro and since then I have had no SD card problems.
Also when I was using standard HTC sense I also never had a problem, I hope this is of some help.

I rooted my htc desire using Unrevok 3 and also tried to partition sd by mini tool home version . unfortunately after partition i cannot access or recognize sd in my desire.

Still not making any progress, ..

[Q] CyanogenMod 7 is ruining my SD cards

Now I'm not moaning about CyanogenMod here, I'm just trying to understand how I can fix the issue.
Basically, I had CyanogenMod 7 RC2 on my Desire Z. That was it.
Eventually I saw through ROM Manager that the full release of 7 was out so I downloaded, took a backup, wiped everything and did a fresh install of the new ROM.
It installed fine, but none of my apps that needed root access were getting it.
So I booted into recovery, restored my backup, root was back.
I then installed 7.0 over my RC2. That worked fine, but again root was gone.
At this point, my phone started damaging SD cards.
It suddenly started saying that my 8GB card that came with the phone was damaged. I tried to fix it on the phone, but it just said 'Checking card' and then giving up.
Putting it in an old MP3 player, it is not detected at all.
Putting it in a card reader, the card is unreadable and when I try to format it Windows says the card is 'read only' (this is not due to the reader).
I put a functional 2gb card I had lying around into my Desire Z and it broke it in the exact same way.
My question to you guys is - what could be causing this and how do I fix it because I have a 16gb card coming and I'm obviously cautious of putting it in the phone.
Also, how would I go about flashing the new Cyanogenmod 7.02 ROM if my phone keeps breaking SD cards I put into it?

This error can be because when ever you install a CyanogenMod ROM over another, It leaves files your new ROM think is useful such as data that the new ROM doesn't support. It is damaging your SD Card because it keeps attempting to fix the error but is making it worst by trying to remove system files. Your best bet is to try another ROM and see if it does the same thing and report it to CyanogenMod Developer Team if it only does this to CyanogenMod ROMs otherwise it would be just a virus on your SD Card feeding off of personal data. If it is only CyanogenMod ROMs, we will adress this issue ASAP. Hope I helped

Thank you VS4, you are indeed helpful
I've since heard some people have managed to fix their SD cards by formatting them in ClockworkMod but I can't even mount it first in order to do this! Is my card truly dead?
Also, do you think the reason that CM7.0 had no root (even when it was a clean install) was due to me not 'fixing permissions'?
Thanks

Just a note to say that I've managed to fix it!
Despite being unable to 'mount sdcard' in clockworkmod, I found I was able to activate USB Storage and through this I was able to format the card (Windows 7 was previously saying that the same card was 'read only' in a multitude of card readers).
I hope this helps any poor chap with the same problem.

I had this exact same problem, munched 2 of my 8GB cards, and had a 16 on the way. I somehow fixed it before the 16 came and I've never had the issue since, glad to see an explanation of it.

Thanks, nofixio!
I had the same problem on my Samsung Fascinate with CM7. It ate my 16GB SD card to the point where the phone wouldn't recognize it, CWM wouldn't mount it, and it wouldn't show up on my computer in multiple SD readers.
I wasn't quite clear what you were suggesting when you said you were able to "activate USB Storage." I thought maybe you meant within CWM. That didn't work for me, but I was able to boot the phone up with the problem SD card in it and turn on USB storage as normal. Suddenly my computer could not only see the SD card, it could see all the files that were on it before it died! I backed everything up, formatted the card in Windows, and everything's good now. Thanks for the tip!

rfschmid said:
Thanks, nofixio!
I had the same problem on my Samsung Fascinate with CM7. It ate my 16GB SD card to the point where the phone wouldn't recognize it, CWM wouldn't mount it, and it wouldn't show up on my computer in multiple SD readers.
I wasn't quite clear what you were suggesting when you said you were able to "activate USB Storage." I thought maybe you meant within CWM. That didn't work for me, but I was able to boot the phone up with the problem SD card in it and turn on USB storage as normal. Suddenly my computer could not only see the SD card, it could see all the files that were on it before it died! I backed everything up, formatted the card in Windows, and everything's good now. Thanks for the tip!
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Click to collapse
how do i activate usb storage? i have several memory cards that stopped working out of no where and i have important files on them. PLEASE HELP!!!

hotboyray said:
how do i activate usb storage? i have several memory cards that stopped working out of no where and i have important files on them. PLEASE HELP!!!
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Click to collapse
I'm not sure why you would ask this in such an old thread but... Try just plugging it in to your computer maybe? What ROM are you on?

noneabove said:
I'm not sure why you would ask this in such an old thread but... Try just plugging it in to your computer maybe? What ROM are you on?
Click to expand...
Click to collapse
im running cm7 ... it wont read from computer. i tried several micro sd card readers. it just tells me it cant format. its just like what was mentioned before.

Weird, I've never had any problems with Cyanogen 7 roms. I've flashed one over another and had no issues at all, Mayb because I use SuperWipe before hand? Or maybe its a certain sd card issue???

Running Desire Z and Andromadus Beta 11 I had similar problem after I had applied remote wipe from Exchange (wanted to see if it works). Remote wipe worked: it destroyed contents of SD card and erased phone back to factory settings. After wipe mounting SD card failed and Andromadus seemed to be unable to format the card.
Solution: Booted phone to Clockwork recovery and applied advanced -> Partition SD Card.
Posted this on this thread since it came first when searching solution.

hotboyray said:
how do i activate usb storage? i have several memory cards that stopped working out of no where and i have important files on them. PLEASE HELP!!!
Click to expand...
Click to collapse
Go into Recovery (Clockwork), go to mounts and storage, then scroll down and it should say mount USB storage.

most of app won't read SDCard

Hi...
This is my first post here.
I have a problem with my SD Card.
My SDCard: 32GB microSDHC, some application like music player and gallery sometimes can't read file on my ext sd card (but my file manager can do it flawlessly)
Furthermore, sometimes it shows PREPARING SD CARD on top of the screen, although I don't even do anything. I tried to re-mount it again. But the problem still sometime occurs.
This problem started happening when I changed my stock rom to Ressurection Remix, I thought this problem occurred because of the ROM. so I change it to AOSP. But still... the problem still existed. So then, I changed it back to my stock ROM (with restore option in CWM)
But yeah... Nothing happen.
Any idea?
P.S.: Sorry for my bad english.

extSdCard/sdcard 1 issues
I have a Note II N1907 (ATT) running Liquid Smooth with a SanDisk microSD ultra 32gb. I have been trying to figure this issue out since I bought this phone 2 months ago. I screwed up the original card that I transferred from my old phone some how by trying different things to make the phone recognize it. It worked fine in my HTC Vivid. I have root and am able to use root options to try to access this card of installation, but the best I have been able to do is use it for storage. And I have to manually move things to the card, because most apps do not acknowledge that it is there (can't see it). TWRP recovery can see it after I did my first ROM Flash, but I have to use internal memory for my first ROM Flash, because recovery mode was unable to mount extSdCard.
Is there a kernel I can flash to remedy this. I am no developer, but I think the problem is that the internal memory is also SD in type. I have noticed that internal memory shows up as SDcard0 (zero) and the after market sd card is sdcard1. Maybe the phone automatically defaults to the first sdcard and ignores the other (because it is only designed to have one sd card).
I am sure others have hard this problem with this phone. Thank you for any help you can offer..

floykoe said:
I have a Note II N1907 (ATT) running Liquid Smooth with a SanDisk microSD ultra 32gb. I have been trying to figure this issue out since I bought this phone 2 months ago. I screwed up the original card that I transferred from my old phone some how by trying different things to make the phone recognize it. It worked fine in my HTC Vivid. I have root and am able to use root options to try to access this card of installation, but the best I have been able to do is use it for storage. And I have to manually move things to the card, because most apps do not acknowledge that it is there (can't see it). TWRP recovery can see it after I did my first ROM Flash, but I have to use internal memory for my first ROM Flash, because recovery mode was unable to mount extSdCard.
Is there a kernel I can flash to remedy this. I am no developer, but I think the problem is that the internal memory is also SD in type. I have noticed that internal memory shows up as SDcard0 (zero) and the after market sd card is sdcard1. Maybe the phone automatically defaults to the first sdcard and ignores the other (because it is only designed to have one sd card).
I am sure others have hard this problem with this phone. Thank you for any help you can offer..
Click to expand...
Click to collapse
As soon as I saw your reply I scanned for the words "Sandisk Ultra" and then I knew this was your issue.
I had a lot of SD card corruption with this brand and searching a lot on the web I found many stories of people having the same issues as I did.
My 32Gb Sandisk Ultra was the cause of many of my problems. 2 months on with a Lexar 32Gb, no problems (touch wood)

SD Unexpectedly Removed - NO Remount

Ive searched the forums here as well as google, and find many S3 users facing a Verrrrry similar problem, where their SD card is "Unexpectedly Removed" and then Remounts itself, and the process repeats, causing battery drainage, loss of access to apps etc.. Mostly Related to a SanDisk manufacturing default with certain chips.
My problem however, is slightly unique, in that, mine does not remount itself once it has been "removed". Once physically removed, and checked on a PC, all my files are still there, in working order. Ive Formatted, both "quick" and full format to Fat32, and the card works fine for about an hour to maybe a whole night if Ive done it right before bed. It seems as soon as it starts to be accessed in any way for more than ten minutes, it gets "removed".
Ive tried the following to try and remedy the problem. (Im fairly broke so buying a new card is last resort in my case)
-Both Formats of the card several times.
-Put it in another phone which reads it, format, unmount safely, mount into my phone, and no luck, doesnt even see it
-Factory Reset incase of any bugs in software that may be causing a malfunction of any kind
-Full Wipe X3 + Change of ROM
Im going to be borrowing a friends card for the night tonight, a spare 2GB he has, and see if the phone repeats the error, or if it really is fault of the SD card in question.
Phone Specs
Rogers S3
Running Darth Stalker 4.1.2? and now AoCP_By_The_Collective5.95 4.2.2
Kernel:3.4.53-cyanogenmod-g361781f
SD Card: Lexar 16GB Class 4 Micro SD HC
Anyone have any ideas as to what may be causing the problem? or does it really sound like the card is at fault? I question this only because the card works elsewhere, and works in my phone for the first little while, with or without files on it, after I format it..
I'll report back about the other card tonight.
Any Suggestions would be greatly appreciated, as I cant find this problem solved in any way, anywhere :s

Once you report back and if the new card works it sounds like the card. But if the second card fails it sounds like a hardware issue only if you tried different ROMS and kernels and going back to stock by using Odin.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 4 Beta

Bruce Lee said:
Once you report back and if the new card works it sounds like the card. But if the second card fails it sounds like a hardware issue only if you tried different ROMS and kernels and going back to stock by using Odin.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 4 Beta
Click to expand...
Click to collapse
I am experiencing a similar issue, but my pc wont recognize the sd card neither :crying:
Do you know how can I fix it?
thank you