Develop Bugs

expansion card disappears

Hi all,
I have had my touch pro2 (t-mobile branded version) for about 1 month now. I have come across a pretty weird problem. The device sometimes cannot see my expansion card, it seems to start randomly (4 times in last month) when starting an application that is installed on the card.
Removing the card from the device and placing it back in makes it visible to the device again. Even stranger is, if you then soft reset, the card is visible untill touchflo starts up (and probably starts accessing the card to get the music and pictures etc), the card then dissappears again.
I have till now not been able to determine the cause of this problem, and mostly after hard resetting a second time the problem dissappers for while and the card functions normally.
My question is, has anyone else had such a problem and do you know of a solution? Also do you guys think this is a hardware or software error (or maybe the expansion card is faulty?) and should I return the device to t-mobile to try and get it fixed? I am hessitant to return it, as the error seems random and i cannot reproduce it on the spot everytime.
All advice, comments, suggestions are welcome.
Thanks

Mine dissapears when i turn the screen off while playing music using Nitrogen. Uknown as to why, made a post but no results. Just gonna deal with it for now.

hi, thnx for replying.
I came across your thread, but I do not use nitrogen. Hope you find a fix for your problem soon. It is very frustrating not knowing exactly what is causing the problem and how to resolve it.

Hello,
I've found that I have the same problem when I use the Album application. I've placed some pictures to the card and opened the folder with Album. It opens well, but when it generates all thumbnails, it tries to write them to the file album.cache. It writes an empty file and the SD card disappears from the system.

sounds a lot like what happens to me, I have noticed it with the music tab from touchflo..when it tries update the library by scanning the card, the card disappears. But it does not happen often. For some reason a hard reset sometimes helps and sometimes does'nt. When it does help, it works for a random amount of time (longest has been 2 weeks, then I had to hard reset for a non related prob, and it gave some probs with the card again)

Guys,
This is normally down to a corrupt file/files on your SD Card.
Try backing up the entire card and doing a full format.
The problem is as you say, during the creation of the databases the software is getting to a corrupt file and this causes the SD Card to drop.
All full format of the card and copying data back on will resolve it.
Cheers,
Beasty

i have none of the problems described above with my sandisk 2gb card.
maybe you should check whether you all got the same card.

beast0898 said:
Guys,
This is normally down to a corrupt file/files on your SD Card.
Try backing up the entire card and doing a full format.
The problem is as you say, during the creation of the databases the software is getting to a corrupt file and this causes the SD Card to drop.
All full format of the card and copying data back on will resolve it.
Cheers,
Beasty
Click to expand...
Click to collapse
hi Beasty,
Thnx very much for your reply..I have formatted the card and so far so good. It's kind of hard to fully comfirm that it has been solved as the error occurs randomly. (or maybe it is solved and the next time it happens the card is just corrupt again )
The card I currently have is a class 4 brandless one that was provided by t-mobile with the device. Do cheaper cards have a higher probability for corrupting then the brand name ones? In any case I will be buying a Sandisk at the end of the week, been wanting a class 6 anyway.

Reaper said:
My question is, has anyone else had such a problem and do you know of a solution? Also do you guys think this is a hardware or software error (or maybe the expansion card is faulty?) and should I return the device to t-mobile to try and get it fixed? I am hessitant to return it, as the error seems random and i cannot reproduce it on the spot everytime.
All advice, comments, suggestions are welcome.
Thanks
Click to expand...
Click to collapse
Not sure whether its the same problem, but (as I've mentioned in another thread) when I fully charge my device with the power off and the card installed, it fails to recognise it when I restart the device.
I do not have the problem if I charge with the device on, or if I remove the card prior to charging.
Cheers,

beast0898 said:
Guys,
This is normally down to a corrupt file/files on your SD Card.
Try backing up the entire card and doing a full format.
The problem is as you say, during the creation of the databases the software is getting to a corrupt file and this causes the SD Card to drop.
All full format of the card and copying data back on will resolve it.
Cheers,
Beasty
Click to expand...
Click to collapse
Thanks, so far it seems that it solved my problem.

SD Card seems to be unmounting automatically...

Well, basically as the title says. This's happened several times to me already. Say I'll turn my phone on (from standby) I'll get a popup error saying that the backup was unable to complete because no SD card was found. Next, the music application won't load the songs because those're all stored on the card. Same for Photos/Gallery. When I go to ES File Explorer, the 'sdcard' folder reports that it is empty.
There hasn't been a pattern that I discovered. This just happened now when I woke up (phone left charging overnight; Wi-Fi & Sync enabled) and I decided to come post here. Happened again yesterday afternoon when I got my phone out to play some music on the way home.
Every once in a while, I'd get lucky and the files would show up by themselves, but the only fool-proof way I've found to get the phone working properly again is a restart, which takes several minutes to do.
I am NOT running any task manager (well, I was but when this problem started up I checked another thread which recommended to remove the task manager, so I did).
Is anyone else experiencing this problem? Do you know of a fix, or is it just me?

Mine's done this a couple of times, but I've put it down to the SD card not being quite pushed home properly. Worth taking it out and cleaning the contacts.

Nope, that doesn't work. I re-inserted it yesterday (contacts were clean) and this morning woke up with the same problem.
Please tell me this isn't just happening to me, cause it'll be a right pain in the ass to have this repaired (sending abroad/etc).

Is the SD Card the one you got with the phone (4Gb) or another make/model size? Please include details so others can help more.
I have left the given Samsung Class 2 4Gb SD card in mine and I have never had any issues with the SD Card unmounting. This is not saying it won't happen, but for me it has been fine. I was going to upgrade to my other Sandisk 16Gb Class 2 that used to be in my Touch Pro, but will do that hopefully this evening.
So all I can guess is either a faulty card or some issue with Class/Size/Manufacturer of Card (if you changed from the Samsung one) ?

It's the stock 4GB card that came pre-installed in the phone. Phone's unlocked too, bought from Clove. If it helps/is relevant: when I loaded up the camera it gave an error saying something like 'no sufficient read permissions for SD card'*, maybe that'd be a clue to the problem.
*I can't quote exactly cause I've since restarted the phone and can't remember it word for word. If/when this happens again I'll post the exact error.
EDIT: There, it just happened again. Restarted the phone not even an hour ago, it's getting ridiculous. Anyway, the error from the camera reads "Unable to save file to SD card due to insufficient file permissions".
FWIW, when I go to SD & Phone Storage settings i CAN see the total and available space on the card. It's just completely inaccessible by the programs. Have also tried the 'SDMount' widget, did absolutely nothing.

Happens to me too but only when I've been letting go of my phone to put it down rather than placing it down, or if I have to drop it on my bed or chair quick.

Happened to me a lot too when I was using one of the lock screen info apps, to get my calendar info on the lock screen. Uninstalled and the SD card problem went away.
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Sent via the XDA Tapatalk App

Never used that :/
I've uninstalled all apps that seemingly access the SD card and will start reinstalling one by one to see if the problem does come back. Only way I could think of.

It is happening to me also. The last 3 days is doing it at least twice a day , i have the desire almost one month and neved had this problem earlier.
And i though it was something i did.

i had the same camera permissions problem. restarted and havnt seen it again since. 4gb card that came with the unbranded device. no idea what caused it, could be any number off new apps etc :S

I've got the same problem.
I've already tried to reformat my SDcard, but the problem still exists. Another problem when the SD card unmounts, is the CPU usage. This rises to ~10% constantly. Probably cause of this are apps which are trying to write to my SDcard.
Still no solution found, maybe I'll try another SD card in a couple of days.

FWIW, I gave up on the stock card and copied all my stuff over to another 4GB card I had running around (straight copy) and it seems to be working fine now. Haven't had a problem yet, although it hasn't even been 24 hours.
Will report back if/when something comes up, and when I start re-installing the apps that I previously removed.

I wrote to HTC earlier yesterday describing the same problem, and I just received this reply:
Dear Mr.Matthew Thank you for contacting HTC. Maybe you mount it on the pc to copy nd paste something and you forgot to unmount it from the pc.. Are you using the inbox SD card? Did you install any third party applications to the phone? Please use the phone in Safe Mode. Safe mode terminates all installed running applications, in case if they caused this issue. Please backup what you have on the SD Card and Format it. If you have any other inquiries, don’t hesitate to contact us again. Please note that you can contact us via support line. For further details, please go to http://www.htc.com/europe/CA_Hotline.aspx , Thank you so much for using HTC products. Respect & Regards, HTC Team http://www.htc.com
Click to expand...
Click to collapse
Only thing I have not yet tried is the Safe Mode. Will see if it needs to get to that.

i had this issue when I installed 'ebuddy'... uninstalled it and the problem is no more

It's started to occur on mine at least twice daily now, it wasn't so before about 4 days back. I've just actually restarted the device on getting such an error and apps complaining that they can't read/write to the SD card. Really after some sort of fix here.

kvmanohar said:
i had this issue when I installed 'ebuddy'... uninstalled it and the problem is no more
Click to expand...
Click to collapse
You're right it seems that was my problem too.
I got rid off ebuddy and all is fine now

I've had this problem once so far, and reading the reply from HTC reminds me that I have unplugged my phone from my mac without unmounting it a few times...

I am also having this issue and have ebuddy installed! I shall uninstall it and see if it fixes it! I really hope it does because its starting to get annoying

I too have ebuddy installed and shall also try removing it and see if that fixes it!

I don't have ebuddy installed but just experienced the SD card error with the camera today.
Sent from my HTC Desire

HTC Desire tranfering music 4GB so slow!

HTC Desire tranfering music 4GB so slow!
im trying to transfer it, but the speed is only on 183 kb/sec, what to do??
its 16 GB card.

Its probably a class 2 card.

RaymondErasmus said:
Its probably a class 2 card.
Click to expand...
Click to collapse
i dont know, but usually it use to send 2-3 mbps per sec, i tryed to move the card over to my hero, and it changed!

kakashi-jk3 said:
i dont know, but usually it use to send 2-3 mbps per sec, i tryed to move the card over to my hero, and it changed!
Click to expand...
Click to collapse
Thats odd ...
Maybe a format of the card will help!

RaymondErasmus said:
Thats odd ...
Maybe a format of the card will help!
Click to expand...
Click to collapse
Thanks for answer Fido!
It doesn't help, tried to google, and saw someone had problem because something about ext4 or something, that made it go slowe..

Don't think so, either the custom rom's or the ext partition cause the slow transfer rates. I'm not exactly sure what it is because there are a lot of mixed reports about it. Best thing to do is to just sit it out or use a cared reader and directly connect it to the pc. If the data transfer is really important maybe try a different rom or remove the ext partition(not sure which one cause i don't know what exactly causes the problem).

oh, do you have the exactly the same problem?

Probably just giving advice from past experience or reading other threds, something you might want to do yourself

but any solution?

[Q] Crashing, services dying

I was running CM 7.0 and now I'm running CM7.01 and every once in a while, like every month or 2 my phone apps will start crashing, saying the services are crashing and the phone just spirals down and I have to reload a backup. Even if the backup is just a couple days old it will reload and be fine for a while. This happens randomly here in San Diego but it also happened when I was in Hawaii back in March and it happened in New York in september also. But it has happened several times here at home. Not sure why, am I being spiked by someone or something, Verizon sending out something that crashes me?? Getting old dealing with it but luckily since I'm rooted with backups I can fix it pretty fast but I do lose all of my texts and anything I loaded since the backup. Weird stuff. This is the second ROM that this is happened with too, I was running the Heyitslou ROM, forgot the name right now but it happened on that too which made me try CM7.
I know my post is sorta vague but anyone else having this issue, any ideas????

Try running Fix Permissions in ROM Manager.

Tried that many times, also cleared Dalvic. It just seemes that after a while it wants to die. If other people aren't seeing this maybe it's my phone hardware??

sound like an issue with not enough free space in data data.
Sent from my ADR6300 using Tapatalk

Just to make sure are you fully wiping or restoring system data?
Sent from my ADR6300 using XDA App

It's from your /data/data folder filling up. Run "ng cache cleaner"

Actually I think I might have found the problem if this makes sense. I tried to copy some files off of my SD card and I found a bunch of read problems with my card and had to buy a new one. Could the SD card being bad make the whole phone crash?? Only time will tell if the problem is gone, if the crashing stops now with the new card. It was a kingston 32gb, Class 4. (piece of crap)

Koreylaw said:
Actually I think I might have found the problem if this makes sense. I tried to copy some files off of my SD card and I found a bunch of read problems with my card and had to buy a new one. Could the SD card being bad make the whole phone crash?? Only time will tell if the problem is gone, if the crashing stops now with the new card. It was a kingston 32gb, Class 4. (piece of crap)
Click to expand...
Click to collapse
That could very well have been the problem. CM does depend on the SD card. I had the issue with force closes before. I simply copied everything from my SD card and reformatted it to FAT32, then copied everything back on to it and haven't had any issues since.

[Q] Phone freezes when trying to access photos on ext. SD Card

I have 812 pictures in my Camera album on my external Toshiba 32GB Class 10 SD card. When I first got the phone in December, everything worked great, even after transferring from my EVO 3D. Now, whenever I try to access my stuff on my SD card through the Gallery app, it just freezes. I can hit home and exit the app, but back doesn't work and I cannot scroll anywhere. I can still access pictures via ASTRO and save stuff on to it..I just don't anymore, in case it goes corrupt. Any solutions? I tried searching, but no one seems to have the same problem as me..

Lol. Sounds like a simple cache issue with the gallery. Go to settings, application manager, all apps, find gallery, try clearing cache, and if that doesn't solve the problem, delete data. This will not delete your images. I think it may or may not delete your thumbnails. Just scroll over the images again and a thumbnail is remade. Nothing will harm your photos.
Sent from my SPH-L710 using xda app-developers app

kkarson said:
I have 812 pictures in my Camera album on my external Toshiba 32GB Class 10 SD card. When I first got the phone in December, everything worked great, even after transferring from my EVO 3D. Now, whenever I try to access my stuff on my SD card through the Gallery app, it just freezes. I can hit home and exit the app, but back doesn't work and I cannot scroll anywhere. I can still access pictures via ASTRO and save stuff on to it..I just don't anymore, in case it goes corrupt. Any solutions? I tried searching, but no one seems to have the same problem as me..
Click to expand...
Click to collapse
hmmm... I would normally say that the 800+ images in one gallery might be the cause of the problem. But you say that it was working fine previously. Even then, I'd recommend to split the images into different folders (maybe based on month they were taken) to minimize the amount of thumbnails that gallery has to process and look through.
I'm assuming you've done the MA6 and MB1 updates. Perhaps upgrading the phone to 4.1.2 caused this? I haven't heard of anything similar on XDA, but I'd stick with kkarson's approach and clear cache from the gallery app. Hope that works for ya!

Already tried clearing the cache and data from the Application Manager, but still the same results. I have a folder of old camera photos from my EVO 3D with 1780 photos in it, and it opens and I can view the photos perfectly fine, with no lag or freezing. But when I open the "Camera" folder on the ext. SD card, it just freezes and I have to go back to the home screen. I just upgraded to MB1 today and still the same results..
Sent from my SPH-L710 using xda app-developers app

Maybe there's corrupted files on the SD card causing the phone to choke when it tries to read them. If you have windows 7 or XP you can put the card in your pc, (with a card reader or usb card reader), then right click on the card and choose properties. Select the tools tab in the properties box. The first option is error checking which will scan the disk and fix errors (if fix errors is checked). However, if there are corrupted files on the SD card it might be going bad and should be reformatted.

I have the same issue. I havent found a fix. I even formatted my external SD card.. didnt help.

MadFlava said:
I have the same issue. I havent found a fix. I even formatted my external SD card.. didnt help.
Click to expand...
Click to collapse
No fix. Your Sd card is done. The fix is get a new one.
Also the op likely has Sd card problems and not a phone problem.

EzDuzit said:
No fix. Your Sd card is done. The fix is get a new one.
Also the op likely has Sd card problems and not a phone problem.
Click to expand...
Click to collapse
The card isnt that old and isnt giving any read/write errors.
I guess that could be the case.. its a class 10 Sandisk card.. I would think it would last more than a couple of months.

MadFlava said:
The card isnt that old and isnt giving any read/write errors.
I guess that could be the case.. its a class 10 Sandisk card.. I would think it would last more than a couple of months.
Click to expand...
Click to collapse
Have you benchmarked your read/write speeds to your external sd?

MadFlava said:
The card isnt that old and isnt giving any read/write errors.
I guess that could be the case.. its a class 10 Sandisk card.. I would think it would last more than a couple of months.
Click to expand...
Click to collapse
I'm looking at a Sandisk 32GB class 10 ultra card that I got right after xmas so it's only 3 mopnths old. It started spitting out corrupt files after only 1 month. Eventually I'll get another card. But if my phone ever random restarts, or suddenly locks up, or I notice media is using a lot of battery, I know if I run scan disk on the card it will show errors. It lasts for a few weeks between formats.
There are also tons of posts from people that have had sd card failures on this phone (also with new cards).
Scan of my card after phone acted up.
Uploaded with ImageShack.us

I bought a new class 10 PNY card today. Once I get some pictures on it, I guess we'll see if that was the issue.
Sent from my SPH-L710 using xda premium

MadFlava said:
I bought a new class 10 PNY card today. Once I get some pictures on it, I guess we'll see if that was the issue.
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
Dont worry you're not alone, theres a thread in general that had a ton of posts and the thread title was "If your sdcard failed on you, what recovery were you on?"
Many have had to purchase 2 or 3 cards until they got one that didnt go bad or corrupted. If you got the sdcard (the one that failed) very recently, you could call the manufacturer and tell them it failed on you, I'm sure they would send a replacement because I've seen others do it and they got their replacements in a timely manner

CNexus said:
Dont worry you're not alone, theres a thread in general that had a ton of posts and the thread title was "If your sdcard failed on you, what recovery were you on?"
Many have had to purchase 2 or 3 cards until they got one that didnt go bad or corrupted. If you got the sdcard (the one that failed) very recently, you could call the manufacturer and tell them it failed on you, I'm sure they would send a replacement because I've seen others do it and they got their replacements in a timely manner
Click to expand...
Click to collapse
Well, the new card doesnt work any faster than the old card. At this point, Im thinking its not the card.

I guess I'm just gonna have to get a new card....this one is only 6 months old!!
Sent from my SPH-L710 using xda app-developers app

My Verbatim class 10 16gb sd card works just fine on my SGS2 and computer but it freezes like hell the SGS4. i want it in my SGS4 ...any advice please..i formatted and still the same

kremori said:
My Verbatim class 10 16gb sd card works just fine on my SGS2 and computer but it freezes like hell the SGS4. i want it in my SGS4 ...any advice please..i formatted and still the same
Click to expand...
Click to collapse
This isn't the section for the S4.