Database Info

Corrupt SD Card issues

Is anyone else having issues with their sd card corrupting? I have an 8gb class 6 transcend card and it has corrupted 3 times in the last month. I always unmount the card in windows before unplugging the phone. It seems to do it when I'm writing to the sd card from the phone.
The first time I noticed it was when I deleted a picture with built in photos app.
The next time was today when I made a nandroid backup before applying an update (theme). The nandroid backup finished and when I went to apply the update it came up with an error (I didn't reboot between the backup and applying the update). I reset the phone and the sd card was unavailable.
At one point I did have the card partitioned with the apps on one partition. When it corrupted I reflashed the phone back to 1.42 and left the apps on the phone. I went back to one partition and left it at that (fat32).
I don't know if I just have a bad card or something else is going on. I never had any problems with 1.41. However because it did it while doing a nandroid backup would that rule out the software version?
I would like to find a solution, as I don't trust the card anymore without backing it up frequently.

i've had it happen once (files names corrupted) but assumed it was down to the card as i had the same happen when it was in my N95, i've now bought a new card and i'll see how it goes.

When mine goes down, it seems like it kills the partition. When I open a disk manager I don't see a partition on the card anymore.

Hey axion,
Yea your card is pretty much dead... this also happened to me yesterday on my 4 gig card... yyour card will still work however reformatting or creating anymore partitions won't help bring it back.. for future update.zips or recovery boots upload your update files to your stock 1 gig card.. remember to always safely remove hardware with any card mounted to the to a computer..

YES - and not only have I had the same problems, it's with the same brand card! Transcend 4 GB Class 6.
My phone started having issues where I installed an application and it would act wonky, then if I tried to reboot it'd lock up into an infinite loop.
The last couple of times, I solved the loop by doing a fsck on the partition in GParted (booted into a GParted Live instance from a laptop using a USB stick). The problem reoccurs though, making me think there's something problematic with the card.
There's an app in the thread on the cheap 8 GB cards (of which I'm holding my recently received shipment . There's an app in that thread used to test write performance, but it does some crude error checking, and I had an issue when I did that test.
I'm going to do a partition clone and report back.

my dodgy card was 4GB Kingston, one interesting problem i had with it was video refused to play, i could read and write the file fine but android would refuse to play it and meridian video player would report the wrong pixel size, time and codec which had me confused all last weekend.

I'm also frequently having problems with my 8gb card (http://www.newegg.com/Product/Product.aspx?Item=N82E16820211341). Every few days I find myself firing up Ubuntu to fsck it and I always find errors. I often discover them when looking for a file on the phone (I usually do a find / | grep whatever and notice that I get "stale file handle" errors).
Should I get a newer/better card? I'm happy to pay more for a better one. I didn't know this brand, but it was the only class 6 I could find. If Sandisk made a faster card I'd get that, but I can only find a class 2. I have a 16gb Sandisk but it is only class 2 and therefore not good for apps, which is what I'm using the sdcard for.
If anyone can recommend a better one, I'll give it a try.
Does a 16gb class 8 exist yet? What about a 16gb class 6?

I just moved to the same card you have, mlevin - so I'll post back my experiences if I'm seeing anything.
I'm wondering if maybe moving the caches to SD isn't the greatest idea, since these devices aren't meant for continuous writes. If I have more issues, I might just move the caches back to the onboard memory.

giantcrazy said:
I just moved to the same card you have, mlevin - so I'll post back my experiences if I'm seeing anything.
I'm wondering if maybe moving the caches to SD isn't the greatest idea, since these devices aren't meant for continuous writes. If I have more issues, I might just move the caches back to the onboard memory.
Click to expand...
Click to collapse
Yeah, that worried me as well, so I moved my caches back to the main storage and only have app, app-private and data symlinked to the card.

If you are having problems after moving apps and data to your ext2 partition, you have to push the original init.rc and mountd.conf back onto the phone so you can wipe to card fully and restore it to the FAT32 file system.

I had a similar problem on my tmobile wing (variant of the Atlas which is a modified version of the Herald) running Windows Mobile 6 and Windows Mobile 6.1. I think it was also when I used the SD card as a place to store cache for PocketIE. Maybe that's the issue, using it as cache storage. (This is my theory, not something that has been confirmed.)

g1 sd card deletes itself
I am on my 4th sd card. I am not sure what is corrupting/deleting my data. I can copy over some music/video/pdfs/wtfevers and it'll stick around for awhile. Then BAM, music folder empty(had 1 gig of music in it). BAM, 1 of 3 video files corrupted. OH wait, now all 3 are gone. awesome. I keep a backup on my pc so I can copy it all back over once it goes south. I have the doodledroid drawing app on my phone and the folder will go corrupt - not allowing me to save an image until I delete the folder so it can reinitialize(create a non-f'ed up folder). Also, my picture thumbnails get f'ed so I have to delete that folder so the G1 can remake a new non-corrupted set. My PDFs disappeared about 3 days ago. Cards all formatted fat32. blah.
Frustrating.
I have root
kila-user 1.1 PLAT-RC33
Anyone else find a solution?
BTW, my sd cards were:
sandisk 2gb
sandisk 2gb
PNY 4gb (current)
Lexar 4gb

mlevin said:
I'm also frequently having problems with my 8gb card (http://www.newegg.com/Product/Product.aspx?Item=N82E16820211341). Every few days I find myself firing up Ubuntu to fsck it and I always find errors. I often discover them when looking for a file on the phone (I usually do a find / | grep whatever and notice that I get "stale file handle" errors).
Should I get a newer/better card? I'm happy to pay more for a better one. I didn't know this brand, but it was the only class 6 I could find. If Sandisk made a faster card I'd get that, but I can only find a class 2. I have a 16gb Sandisk but it is only class 2 and therefore not good for apps, which is what I'm using the sdcard for.
If anyone can recommend a better one, I'll give it a try.
Does a 16gb class 8 exist yet? What about a 16gb class 6?
Click to expand...
Click to collapse
mlevin: I have that card. It's been fine...until I believe the other day. I was running 5.01H w/ apps to sd and my battery had died so I charged it. Upon turning it on the android screen kept looping as though it wasn't mounting the card. Worse came to worse and I had to end up reformatting the card and starting from square 1. Now that I reformatted it, I'm getting "insufficent space" errors when trying to install paid apps even though I did everything right.
I'm wondering if it is the card.....

[Q]: Applications not loading from Storage Card

All of a sudden apps on storage card fail to load.
After a few reboots they reappear at random, but disappear again on reset.
Did not have that problem with stock, but after flashing Infused 1.14 (and on) the issue appears even with the (rooted) stock rom.
Any ideas?
I am trying to determine if I need to return and replace the phone before I lose the option.
Thank you in advance.

Answering the question by myself, in case others encounter the same issue.
The external card had something corrupted, and when the system was mounting it, all mess ensued.
Backed up all the data and reformatted.
System appears ok for now

I just had this same problem or at least something very similar to it. Initially I thought it was the 32GB SD card being too big since I read Android had a 16GB external card limit. But those posts were from a year ago and when I searched deeper I read that 32GB cards were being use without size problems now. There was one issue that seemed to affect some people and that was that android could have problems formatting a card that big and that's how I installed it in my Infuse initially- I let the Infuse format it, then popped in in my Macbook Pro (in OSX) to copy over the contents from the previous 8G card. I believe I have hidden files set to show, so I should be copying over everything- though, could this method of upgrading the card be a problem too?
It worked for a couple days, but last night during a reboot I tried to access the app tray and didn't know the card was still being scanned. It froze and I couldn't get past the secondary media scan after many tries. I didn't realize that apps were being automatically installed to the card.
Anyway, I was gonna return the card, but after reading your post, I'm thinking again about corruption due to poor formatting as the problem, so I'll try it again when I get home. Thanks for your post. I really want to be able to use this larger card so I'm keeping my fingers crossed this will solve the problem.
BTW, how did you format the card? I have Win7 x64Pro on my MBP as well if I need to use windows, but did you use FAT, FAT32, ExFat? I'm still a 'droid noob ;P. Thanks again!
-- Infuse 4G Rooted with stock ROM

Soft reboot when Ext SD card in Cap

I am having maddening issues with my Cap (running KJ3 rooted). When the SD card is inserted, it becomes very unstable and soft reboots - usually on startup (and repeats ad infinitium). If I start up without the SD card, I am stable, but I have many apps that KJ3 defaults to installing on the SD card. The problem occurs whether I insert the card before boot up, or insert after it has started up.
I have the same issue with 2 different cards. I tried a brand new class 10, 16GB. I restored apps from my TiBu backup which I had copied from the old card to new (on PC) - not sure if that is the issue...
Anyone have any ideas?

Well, if I am not mistaken, apps which are installed to SD are not on the removable SD card, but on the captivate's "Internal SD", which is the 16GB... well actually about 13GB after the phone's "internal Storage" partition is lopped off of it.
I would try a reflash and then test it before you install the apps.

rfound said:
Well, if I am not mistaken, apps which are installed to SD are not on the removable SD card, but on the captivate's "Internal SD", which is the 16GB... well actually about 13GB after the phone's "internal Storage" partition is lopped off of it.
I would try a reflash and then test it before you install the apps.
Click to expand...
Click to collapse
I've been down that road more times than you can imagine - flash, wipe in recovery, and reload. I had thought that it was the .androidsecure directory on the external SD that held the parts of the apps that move. what is clear is that this only happens with the external SD card inserted and mounted, and almost always happens within 10 minutes of startup or the previous cycle, i.e., before any program launches other than TouchWiz and often before any email sync (this is my work phone, syncs with Exchange 2007 server).
I did get a list of all apps that have the start on boot permission, not sure if any of these are regular problem children, they are, on my phone (not sure why some of them need that permission, but that's a different story):
Amazon MP3
Amazon Appstore
Contapps
Dolphin Browser
Finance
FIOS Remote
FilghtView Free
Folder Organizer
GetJar
Gmail
Goggles
Google Voice
Handcent SMS
iCookbook
Lookout
Maps
Market
MLB.com At Bat 11
Office Talk Free
OfficeSuite
Pocket Casts
Pocket Informant
ReadItLater
ScoreCenter
SeekDroid
Super Manager
Superuser
Titanium Backup
TuneIn Radio Pro
United Airlines
Wordsmith

Did you move the apps back to internal memory after restoring them? Iirc, when using the later leaks, they install all the apps to external sd(if there is one in the phone).

mrhaley30705 said:
Did you move the apps back to internal memory after restoring them? Iirc, when using the later leaks, they install all the apps to external sd(if there is one in the phone).
Click to expand...
Click to collapse
Going to start doing that, the next time I have a stable spell with the card in. The problem is that the failure is intermittent. It doesn't fail every time I have the SD card in, but every time it does fail, I have the card installed, and it usually takes awhile before it starts working again. Thinking about another factory reset and then reinstalling apps without TiBu help or the card in, at least until I get all of the ones that startup in main memory to eliminate that possibility.
Of course with the Epic finally getting the official upgrade, kind of want to hold off until the Captivate image finally comes out, that way if it is a hardware problem. I'll be on stock for the warranty exchange.

Arggh... maddening problems continued.
The phone stayed up (with SD card in for about 16 hours), during that time I moved every app with the permission to launch on boot to main memory. I then had the kernel panic, or whatever the soft boot actually is, occur while in Pocket Informant.
I then watched it cycle through display PIN-lock screen, start media scan, screen shut off, and then re-boot seven times, approximately every three minutes while never touching the phone. Some times I saw on the status bar "Media scan completed", sometimes it had the icons.
After powering down, and starting up from off - it is now up again, who knows for how long.
So unfortunately, I can now say this is not just a startup issue; I can also say that something that happens during startup (or at least the kernel launch) creates the conditions for this reboot cycle to occur.
Anyone out there have any ideas?

stoobie-doo said:
Arggh... maddening problems continued.
The phone stayed up (with SD card in for about 16 hours), during that time I moved every app with the permission to launch on boot to main memory. I then had the kernel panic, or whatever the soft boot actually is, occur while in Pocket Informant.
I then watched it cycle through display PIN-lock screen, start media scan, screen shut off, and then re-boot seven times, approximately every three minutes while never touching the phone. Some times I saw on the status bar "Media scan completed", sometimes it had the icons.
After powering down, and starting up from off - it is now up again, who knows for how long.
So unfortunately, I can now say this is not just a startup issue; I can also say that something that happens during startup (or at least the kernel launch) creates the conditions for this reboot cycle to occur.
Anyone out there have any ideas?
Click to expand...
Click to collapse
question what kind of sd card do you have in there as in what class? class 10s can cause issues . wait i see .. have you tried a class 4 or 6? I had mutiple 10s cause issues like this and exchanged for a 4 and all issues went away .. or you can format the card on your computer using fat32 and set to 32k sectors but that did not work for me ..

xhozt said:
question what kind of sd card do you have in there as in what class? class 10s can cause issues . wait i see .. have you tried a class 4 or 6? I had mutiple 10s cause issues like this and exchanged for a 4 and all issues went away .. or you can format the card on your computer using fat32 and set to 32k sectors but that did not work for me ..
Click to expand...
Click to collapse
I had a 16GB class 4 (Patriot) in. I just replaced it with a PNY 16GB Class 10. Both have had the same issues (currently using the Class 10). Both were formatted in the phone itself - so assuming they are FAT32.

MIUI reads only the EXT3 partition of my SD Card (NOT Fat32)

I'm using MIUI-1.12.9 with APPS2SD after preparing a 512MB partition for the apps on my 8GB Class2 MicroSD Card. The remaining section I used to store files for flashing, music, data, etc.
Now all of a sudden, my phone gives me 'You may remove the SD Card' error. It shows the MicroSD Card as unavailable and even when I connect vias USB, the computer cannot detect it. I tried connecting the card separately to the computer using an adapter, but no luck. However, it still reads the EXT3 partition where all the apps are stored as all the apps are still available to me.
Any ideas on what could be wrong and how to resolve this? I want to backup all my apps first but I can't do that with out Android recognizing the card

I don't have a solution for you, but just out of curiosity why in the hell do you use APPS2SD on Defy? After you install the ROM there is around 1GB of free space on the internal memory. This is more than enough to install over 100 apps. Moreover you can move some of the to SD-card from the interface (Manage Applications).

I figured, the more space I free up the more breathing space right? Anywhich way it was working great. No noticeable lag even though I use a Class 2 SD Card. When all of a sudden after over a week, it suddenly gives me a notification "You can safely remove your SD Card now." Huh? Even after reboot, it gives me the same message. I took out the card and plugged it directly in and it doesn't read, but the EXT3 partition still works fine!
I could just get a new card and start from scratch. But I'm intrigued by this error! Gotta get to the bottom of this. Didn't get any response on the General forum, so I figured I'd try my luck here at the risk of annoying a few people. Can anyone help with any suggestions?

SD Card slowing down Android ?

Hi, It's my first post here on XDA-Devs.
Here's how my story goes. I bought an ASUS ZenPad C 7.0 few days ago (Less than a week maybe). It was working great. I didn't install many apps (only 2-3 till now). It was working great until yesterday. I bought a SD card (32 GB) which is full of study content. All the content was already in it when I got it.
My device supports upto 64 GB expandable memory. But when I insert it into the tablet, the tablet lags, lags terribly ! It lags so bad that I have to forcefully shut it down. I can't remove the battery so have to hold the power button for 30+ seconds to do this.
My thought for the reason :
1) The ZenUI keeps crashing, even without the SD card.
2) The android on this device is not well coded. It's bugged. Alarms keeps on vibrating the device until I force stop the clock application.
I think I should root my device and install cyanogenmod because it's far better than what i received in the package. It might fix the alarm and UI crash issue and the most important SD Card issue.
That's all. Help me please.

thenewgengamer said:
Hi, It's my first post here on XDA-Devs.
Here's how my story goes. I bought an ASUS ZenPad C 7.0 few days ago (Less than a week maybe). It was working great. I didn't install many apps (only 2-3 till now). It was working great until yesterday. I bought a SD card (32 GB) which is full of study content. All the content was already in it when I got it.
My device supports upto 64 GB expandable memory. But when I insert it into the tablet, the tablet lags, lags terribly ! It lags so bad that I have to forcefully shut it down. I can't remove the battery so have to hold the power button for 30+ seconds to do this.
My thought for the reason :
1) The ZenUI keeps crashing, even without the SD card.
2) The android on this device is not well coded. It's bugged. Alarms keeps on vibrating the device until I force stop the clock application.
I think I should root my device and install cyanogenmod because it's far better than what i received in the package. It might fix the alarm and UI crash issue and the most important SD Card issue.
That's all. Help me please.
Click to expand...
Click to collapse
I've certainly read of issues with the ZenUI before, so if a root is available and you're comfortable doing it then it may be worthwhile.
But what do you mean that all of the content was on the SD card when you go it? You purchased/received it loaded with content? Have you loaded the SD card into any other devices or a PC? Do other devices lag in a similar manner?
Also, have you tried loading any other SD cards into it? If you have any empty one, or maybe one with just a few photos and/or songs, that could be a useful test.

thenewgengamer said:
Hi, It's my first post here on XDA-Devs.
Here's how my story goes. I bought an ASUS ZenPad C 7.0 few days ago (Less than a week maybe). It was working great. I didn't install many apps (only 2-3 till now). It was working great until yesterday. I bought a SD card (32 GB) which is full of study content. All the content was already in it when I got it.
My device supports upto 64 GB expandable memory. But when I insert it into the tablet, the tablet lags, lags terribly ! It lags so bad that I have to forcefully shut it down. I can't remove the battery so have to hold the power button for 30+ seconds to do this.
My thought for the reason :
1) The ZenUI keeps crashing, even without the SD card.
2) The android on this device is not well coded. It's bugged. Alarms keeps on vibrating the device until I force stop the clock application.
I think I should root my device and install cyanogenmod because it's far better than what i received in the package. It might fix the alarm and UI crash issue and the most important SD Card issue.
That's all. Help me please.
Click to expand...
Click to collapse
try factory reset and again configure it with the sd card insertes in it

Good Son 5 said:
I've certainly read of issues with the ZenUI before, so if a root is available and you're comfortable doing it then it may be worthwhile.
But what do you mean that all of the content was on the SD card when you go it? You purchased/received it loaded with content? Have you loaded the SD card into any other devices or a PC? Do other devices lag in a similar manner?
Also, have you tried loading any other SD cards into it? If you have any empty one, or maybe one with just a few photos and/or songs, that could be a useful test.
Click to expand...
Click to collapse
The SD Card was loaded when it was purchased. And I've tried other SD card (4 GB) and it didn't lag. I Can't try this 32 GB SD on other device as it's won't work on a device with different IMEI number.
Maybe the SD card is the problem ?

droid_god said:
try factory reset and again configure it with the sd card insertes in it
Click to expand...
Click to collapse
I've already tried that. Doesn't work. As i said, the tab lags only when the sd card is inserted.

thenewgengamer said:
I've already tried that. Doesn't work. As i said, the tab lags only when the sd card is inserted.
Click to expand...
Click to collapse
maybe there is extra load from the study material.
does that have any auto run feature on windows. that allows ypu to open and access the contents

thenewgengamer said:
The SD Card was loaded when it was purchased. And I've tried other SD card (4 GB) and it didn't lag. I Can't try this 32 GB SD on other device as it's won't work on a device with different IMEI number.
Maybe the SD card is the problem ?
Click to expand...
Click to collapse
Well the Asus ZenPad you got is only listed with 1 GB of RAM and a fairly modest resolution, so if there are graphics automatically loading when the SD card is put in then it may be creating the lag on the device.
But you say that the SD card will only work with that device? That seems strange to me. What happens when you try putting it in a PC? Or do you only have the ZenPad to work with?
Do you know what brand the SD cards you have are (both the 32 GB that doesn't work and the 4 GB that has no issues)? And is the 4 GB card completely empty? Have you ever seen any notifications with the 32 GB cards that it is unmounting from the device on its own?