Develop Bugs

SD card woes

Hi,
Seen various SD card problems posted here and other forums but no solutions.
A few nights ago I was transferring a large number of files to my Desire and noticed the transfer windows froze so I disconnected my phone. When I then tried to turn the screen on it wouldn't turn on (though the led kept blinking). I eventually had to restart the phone by removing the battery.
Upon restarting I got an error saying the SD card was corrupted and needed to be formatted. Tried restarting again etc but didn't work so clicked on 'format' in the pop-up but nothing happened even after several attempts. Then tried doing this through the settings menu but again didn't work.
Gave up. Wake up next morning and phone screen won't come on again. Took out battery again and still had memory card problem so connected to pc and formatted card on there. I think after this the card started working again but WITH ALL THE DATA STILL ON IT. No idea how!?
This morning after 4 days working fine I connect phone to pc to transfer music and don't get an option to mount USB so I unplugged and get a new SD card error: blank SD card. SD card blank or has unsupported file system. So tried everything I tried last time but this time I can't mount the card so I can't access it on a pc to format it.
Anyone had similar problems on here? Seems to have happened to quite a few on Android forums etc. Any suggestions? Have tried putting card in and out several times. Have tried SD mount widget. Getting pretty desperate here.
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Sent via the XDA Tapatalk App

had exactly the same issue you had the second time, posted, found no fix.
Using a spare sd card I had in it's place, my phone registered it as blank again the next day! It was a reboot job though and it has been fine since..
Would like to get to the bottom of this before a blow a decent sized card

I have had many many bizzare and quite frankly random SD card errors with this phone. Nearly one everyday doing something. Most of them read the same SD card missing, needs formatting, is empty or corrupted notifications. The latest one occurred 5 mins back on reinstalling NewsRoom app -- suddenly left with a totally empty SD card when trying to save RSS to it. As in every case, an immediate reboot fixed the error so I can't offer any more help.
Whenever I've had the "needs formatting" error I removed the card for a few mins before replacing it back inand it worked fine thereafter.
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- Sent via my HTC Desire -

I've just tried leaving the card out for a few minutes with the phone off and reinserting to no avail. Tried restarting lots of times
Going to try another SD card now. Most people on other forums had problems with their stock 4gb cards whereas mine is an 8GB card i got separately. I think it's the phone at fault not the cards.
**Update** The other SD card is working fine so far. But i'm now left with a screwed up 8gb card that's not recognised by any pc. Any suggestions of how to fix this?
If my 4gb card is screwed up by the phone too i'll let you all know

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] 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!
Click to expand...
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!!!
Click to expand...
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.

DHD keeps rebooting when sd inserted with specific apps, strange

hey guys, sorry to be trouble but frankly im just fed up, tried and searched everywhere, i have dhd with ARHD latest installed just the basic new rom by mike, lately ive been experiencing my phone rebooting everytime the apps load from the sd card, it just continuously reboots, i take sd card out and its all fine, tried many other cards and have the same issue, so somewhere someone said its because theres alot of apps on the sd card and the firmware or htc cant handle it so it shuts the phone down by doing a reboot, i currently have 123 apps on my sd card in the android secure folder with a total size of 1.41gb...i have about 60 apps on the desire hd internal storage, i have a 32 gb card, plenty of space in the card itself, heres the wierd bit, i delete a few apps from the android secure folder and the phone starts loading the apps perfectly and doesnt go into a reboot, however the problem comes back if i download new apps, please has anyone got an idea whats going on, sometimes it works and sometimes it doesnt, then also it would randomly start saying sd ard unexpectedly removed, although thats only happened once so to be dafe i just took that card out and replaced it since i had another 32 gb lying about, i guess the real problem is the reboot....
ohh to make it more frustrating, i reflashed, clear memory, cache and everything before reflashing ARHD again...started with a few apps, lasted about 4 days then downloaded a little more and then woke up one day a week later, tried restarting my phone and there it goes again, constant reboots with sd card, the apps load, screen freezes and waaala reboot...
im desperate...had this phone over a year and now its just acting up when lots of apps are on there...
any help would be appreciated...

So no ideas then anyone lol...

It's a notorious issue with the dhd on gingerbread (revolution). I encountered it recently when sense kept restarting on my phone every five minutes after I moved too many apps to my sd card (even though most were frozen and the sd is class 10). After I made sure I had backups, I uninstalled a lot of apps from the sd card and everything is fine. Either try and uninstall some apps you aren't using or upgrade to icecoldsandwich.
Or the other option is to make a second partition on your sd card (backup first) using ext4 (use minitools), then use the app link2sd.

Link2sd app worked GREAT for me!

I can confirm this. If you put too many apps on SD card, it just reboots. Drove me crazy while I used stock ROM.

Here's some super duper tricks guys....Enjoy!!!
billy_87 said:
hey guys, sorry to be trouble but frankly im just fed up, tried and searched everywhere, i have dhd with ARHD latest installed just the basic new rom by mike, lately ive been experiencing my phone rebooting everytime the apps load from the sd card, it just continuously reboots, i take sd card out and its all fine, tried many other cards and have the same issue, so somewhere someone said its because theres alot of apps on the sd card and the firmware or htc cant handle it so it shuts the phone down by doing a reboot, i currently have 123 apps on my sd card in the android secure folder with a total size of 1.41gb...i have about 60 apps on the desire hd internal storage, i have a 32 gb card, plenty of space in the card itself, heres the wierd bit, i delete a few apps from the android secure folder and the phone starts loading the apps perfectly and doesnt go into a reboot, however the problem comes back if i download new apps, please has anyone got an idea whats going on, sometimes it works and sometimes it doesnt, then also it would randomly start saying sd ard unexpectedly removed, although thats only happened once so to be dafe i just took that card out and replaced it since i had another 32 gb lying about, i guess the real problem is the reboot....
ohh to make it more frustrating, i reflashed, clear memory, cache and everything before reflashing ARHD again...started with a few apps, lasted about 4 days then downloaded a little more and then woke up one day a week later, tried restarting my phone and there it goes again, constant reboots with sd card, the apps load, screen freezes and waaala reboot...
im desperate...had this phone over a year and now its just acting up when lots of apps are on there...
any help would be appreciated...
Click to expand...
Click to collapse
Hey,there's a cool way to get it going even if there are ton's of apps in SDcard.try this simple trick(Works for me with 735 apps on a 32GBcard) :
1.Power off the phone by holding the power button for some time if the phone keep rebooting without any stop.
2.Keep it cool for 3-4 mins.
3.Power it on again.
4.Then when the launcher starts,goto 'settings' fast.
5.Then quickly goto the storage>Unmount SD card.
6.Then after the USB storage scanning is finished and all apps in phone memory are granted their requested permissions(just for rooted device),mount the SD card...
7.This time the reboot won't occur until you power it off and power it on again...
HAPPY TWEAKING!!!
Here's another trick too... :
1.Power off the phone by holding the power button for some time if the phone keep rebooting without any stop.
2.Keep it cool for 3-4 mins.
3.Power it on again.
4.This time,just after the launcher start,plug in the USB cable and connect it to the computer in MTP mode.
5.When the SD card scanning just stops,plug the usb cable out(this'll give you a max of 1min to do it).
6.A second wave of Media Scanning occurs.
7.but this time,it won't even dare to touch your phone...
"Nothing is Impossible" :victory:
The final trick(Trick 3):
1..Power off the phone by holding the power button for some time if the phone keep rebooting without any stop.
2.Take the SD card out.
3.Power it on again.
4.After booting and media scanning finished,put the SD card back in.
5.mount it in settings>storage>mount SD card.
6.Wait till the media scanning ends.
7.Now you're ready to go....
"Never Give UP on Anything" :highfive:
hey guys,just don't let the tech rule you.Rule the tech.these are just basics...Anyone who got to play with a smartphone for a long time can figure it out....Just tweak your brain!!!! Anyway Cheers bye now.... Hit thanks if I helped you.... :victory:

All files on external SD card corrupt after unexpected shutdown

Hey guys and girls!
This morning my phone turned off by itself (13% battery left) and needed somewhat longer than usual to reboot (in the meantime I plugged it back in to the charger). First thing I noticed was that my whole theme got reset as well as it started showing me introductional tips ("long press here to move your apps to the homescreen, ecc.). It also started to update apps in the Play Store even though I set it to manual ... so basically a LOT of things were reset.
The biggest problem I'm having now is though that all my files (pictures, videos, music) that are stored on an external micro SD card are corrupt. It's not possible anymore to open anything. I already removed the micro SD card and put it into an adapter to have a look at the files via the laptop. But nothing, even though the sizes of the files seem OK, I can't open them.
Does anyone have a clue as to what exactly happened here? Are those files lost (at least of some I have a backup) or is there anything I can do to "repair" them? Help is really appreciated, thanks!
PS: Things like the card unmounting and re-mounting never occurred. So I can't tell if the card was dying or if actually the phone ruined my files.

Did you happen to be using a SanDisk SD Card? I've had my 10 brick 2 of those until I switched to Samsung SD Cards about a year ago and haven't had issues since.
I never could manage to recover files from the damaged SD cards.

I have a Samsung SD card and had something similar.
I guess I was on Viper Rom and basically my phone restarted around 15-20% of battery. After a long wait for booting back again, all my settings were gone.
Files and others in the SD card was okay but basically until I formatted the card, I wasn't able to boot into the Download Mode to install a new rom...
I fixed the restart issue by installing the official HTC Rom.

Thanks for your replies.
It is indeed a SanDisk 16GB card. It seems though that the card is still working (no problems accessing it via phone or laptop), just the files appear to be broken. In the meantime I also tried apps like PC Inspector File Recovery, but to no success
I'm still on stock HTC Sense by the way, no root, nothing.
Anyone know though why that happened (resetting everything, etc.)?

Hit me with a PM I'll give you a SanDisk restore tool which works quite ok. there is a huge chance some files can be recovered, some will be damaged though. Don't push any new files on the card after you tried to restore the files

HTC 10-Corrupted microSD card
I know this is an older thread, but I was wondering if there is a solution. I have an HTC 10 which has an micro SD card in it, that is "married" to the phone. When connected to a computer, the computer recognizes the phone, and the microSD card, and begins to load the folders/files. Eventually this process stalls, and the phone/drive is no longer readable by the computer. To get the computer to recognize the phone/card again, I need to restart the phone, but the same thing happens again.
I have like 20gigs of data on the card, and cannot just put the card in a reader, because it's encrypted to the phone. Any possible solutions? It's frustrating to see the files/pictures for a minute or two, and then have them disappear. I have tried copying/pasting the files while they're visible, but this often triggers the computer to no longer recognize the phone/memory card. I've tried to un-encrypt the microSD card, but the phone can't recognize/access the microSD card long enough to complete that process.
Please help if you can.
Glenn