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 keeps becoming unavailable

Has anyone else come across the problem where the micro SD card seems to just stop being available to the phone? I'd say maybe once or so a day, anything that reads data from the SD card, such as the music app, stop working. If I try and play a song, it just hangs and does nothing.
I tried a search and somebody in the G1 forum had a similar problem but it didn't really contain any conclusions on what it is likely to be.
Anyone else had this issue? What is it most likely to be, the phone or card?
Thanks.

yeah I've had this occasionally with the camerea and seperately the 3d gallery software I installed.. have no idea why

Yea I've had that a couple of times actually. Just have to turn it off and on again and its ok, but its annoying.

Yeah, rebooting does sort it out, but it's starting to happen every day now, sometimes a couple times a day. If it's just a dodgy card or whatever I'd rather get T-Mobile to sort it sooner rather than later.

hmm a dodgy card.. included with the phone, that sucks

Backup your SD Card data and then try formatting it to see if that helps.

Cheers, will give that a go tomorrow. I might ring up T-Mob tomorrow anyway just to make them aware of the issue I'm having.
If I format it, will I be able to copy all the contents back on to it?

aljwatson69 said:
Cheers, will give that a go tomorrow. I might ring up T-Mob tomorrow anyway just to make them aware of the issue I'm having.
If I format it, will I be able to copy all the contents back on to it?
Click to expand...
Click to collapse
Yes, back it up to hard drive on your PC, then after you have formatted your SD card, copy back the contents from the hard drive to your Removable disk (SD card).

I've had this a few times Took the card out, reinserted and restarted the phone. Seemed to fix it, but it is annoying.

Sorry I can't remember when and how I know this.
But backup the card on your PC
Then format it in/with the phone and this should solve the problem I believe

I had killed one of my 16 GB card in Nexus one.
I found a problem that if i use Win 7 or Vista i must remove the device by using safely remove the USB device. Since now am doing this way i never had any problem.
Word of warning you could simply kill a card if you just remove a device.

My first thought was it has something to do with the USB connection. If you safely remove device in Windows - the phone 'prepares' the SD card.

I was having the same issue. I connected to the PC and mounted the SD card. I performed a disk check on the card and it found some errors which it then repaired. I then unmounted the card
I haven't had any issues since.

I formatted my card yesterday and haven't had any problems so far. thanks for the advice.

I ended up replacing the card. All of the previous advice didn't work for me or if it did it didn't last. I reckon there was a bit of a dodgy batch supplied by SanDisk.
~Since replacing I've had absolutely no problems whatsoever, it used to happen at least every 48hours. Very annoying when you try to take a photo and it tells you there's nowhere to save it.

I've been having problems too when taking pictures, which is really annoying!
And i'm not sure whether this is a related problem or not, but it could be...when trying to receive a file over bluetooth it sometimes says it doesn't have permission to receive the file or something along those lines, could this be the SD card playing up?
I'm on T Mobile, would they replace the SD card?

Not sure if it is the same reason, but I had all kinds of problems including the one you've described.
I'm on Orange, they told me that my SD card wasn't covered by Orange Care (the orange phone insurance). I said I didn't have Orange Care anyway and that surely it comes under the 12 months manufacturers warranty. They said pop it into the shop which is a bit of a drive and would cost me more than the value of a new card to get there.
At the time I wasn't certain it was the card as I didn't have a 2nd to try it with. Given my problem was very intermittent I decided the bother of going into the shop - it wasn't worth it for a £5 card. Now that I've bought a new one that works perfectly, I'm going to head into the shop with the old one next time I'm passing. The problem is I don't really need it replacing now! You could always lie and tell them you've tried your friends card at home for a couple of days and it worked perfectly?! No harm in trying.

hassan said:
I had killed one of my 16 GB card in Nexus one.
I found a problem that if i use Win 7 or Vista i must remove the device by using safely remove the USB device. Since now am doing this way i never had any problem.
Word of warning you could simply kill a card if you just remove a device.
Click to expand...
Click to collapse
Mhh - maybe I've had luck, but I use my over 1 year old 8gb cl6 card from magic/mt3g and never use that win function while unpluging anything (not while data transfer). So maybe depends on quality or manufacturer?
Sent from my HTC Desire

2-3 weeks since I've formatted my card and now I'm carefully unpluging my phone only when it's charging it hasn't happened ever since
Zilch said:
I've had this a few times Took the card out, reinserted and restarted the phone. Seemed to fix it, but it is annoying.
Click to expand...
Click to collapse
I hate to say it, but it will happen again. Have card reader or other phone prepared, just in case your sd card stops working totally

SD Card Unexpectedly Removed

Hi guys,
I've seen this issue addressed on forums for other devices but didn't see a thread for it here.
Anyone else experienced this before? Constalty getting an error message for "SD Card Unexpectedly Removed". It's a class 4 32GB SD Card, it's installed securely in my GS3 in an Otterbox case, running on my rooted stock JB device.
I can usually access the SD card data after a few minutes but then often when I wake my device still get the same message.
Do I need to format the card??

I had an S3 that initially reported this error. It eventually started ruining sdcards.
AT&T eventually ended up giving me a new one.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Sianspheric said:
Hi guys,
I've seen this issue addressed on forums for other devices but didn't see a thread for it here.
Anyone else experienced this before? Constalty getting an error message for "SD Card Unexpectedly Removed". It's a class 4 32GB SD Card, it's installed securely in my GS3 in an Otterbox case, running on my rooted stock JB device.
I can usually access the SD card data after a few minutes but then often when I wake my device still get the same message.
Do I need to format the card??
Click to expand...
Click to collapse
Anyone have any further input on this? Earlier tonight, mine gave me the same warning. (Also installed securely inside an Otterbox case, running stock/ non rooted). I just popped the card into my laptop and my computer doesn't see it. It really looks like the card's ruined and everything on it is gone. To say that's not cool is an understatement...

Mine started saying it's ejected last night, also in a case, randomly saying it's back. Still works fine in a pc. Assuming it's the slot and not the rom...poop. guess I need to Odin back to stock and try to get a replacement.
Sent from Bananaphone v2.0 (Final)

Had the same issue with my S3.
Turned out that the SD card was dying, this caused it to be unmounted by itself and then mounted again (sometimes showing notification “sd card removed unexpectedly”), hence triggering the media scanning process.
I created an application to monitor how many times the SD card was removed, and turned out to be unmounted every ~3 mins!!!
I then bought a new Transcend 32GB Class 10 card, and until now, this never happens, no reports from the application whatsoever, and no media process eating my battery.
I just published this app in the play store now, this is the link:
https://play.google.com/store/apps/details?id=com.sdcardmonitor

It might be a bad sd card, i used to get that error on another phone when using a certain sd card but when i tried another one it worked fine. Maybe try another card see if you get the error.

Apparently sgs3 have problems with SD cards anyway
http://forum.xda-developers.com/showthread.php?t=1906058
I had this happen to my friends phone the other day. Best thing to do if you can't access the information may be to run chkdsk /r which will check for bad sectors and recover any readable information. Move tour info off the card and try to reformat to fat32
Sent from my SGH-I747 using Tapatalk 2

SD card stopped writing

So this started Friday morning but I didn't know what the issue was. I use my SD card for caching music from my All Access Google Play music subscription, and I was actually streaming non-downloaded music at the time, and everything stopped working, and I kept getting errors about not being able to download. Didn't think much of it. Did the standard Routine, reboot, didn't work, so I cleared cache and uninstalled updates on play music and the service was working again and I didn't think about it again until I tried to take a picture later in the evening and got this in the gallery instead of the picture
http://forum.xda-developers.com/attachment.php?attachmentid=3418912&d=1437899706
Again I just did the standard stuff, rebooted, cleared cache and data to the gallery and camera app, but this time nothing was working. I finally decided to change my save location from my SD to my internal storage, and my pictures started saving again. So I connected the dots to what happened with Google Play Music earlier in the day, and checked my downloads, and nothing was downloaded anymore, option to save to SD was grayed out. Naturally I tried to format with the card in the phone, and it acted like it worked ok, but still showed I only had 11gb left of space, and still wouldn't work with anything. So I stuck it in my PC, and windows errors every time I try to format it. I tried with the default windows 8 formatting tool, I've tried with third party tools, same thing, won't format. Card appears to be read only now. How does this happen? It's the free 32GB card I got from LG with the extra battery and charging case I got for buying a G4 before June 30th. In fact I've only had this SD card for maybe a month. Is this some lolipop permissions keeping me from formatting it or is it hosed? I remember reading something about Google changing permissions on the SD with kitkat, but I also read they changed back with lolipop. I also read that LG didn't seem to notice they changed back and kept things the way they were with kitkat. If that's the case how do I take ownership of the whole card so I can format it?

I've had the same problem!
Cor-master said:
So this started Friday morning but I didn't know what the issue was. I use my SD card for caching music from my All Access Google Play music subscription, and I was actually streaming non-downloaded music at the time, and everything stopped working, and I kept getting errors about not being able to download. Didn't think much of it. Did the standard Routine, reboot, didn't work, so I cleared cache and uninstalled updates on play music and the service was working again and I didn't think about it again until I tried to take a picture later in the evening and got this in the gallery instead of the picture
http://forum.xda-developers.com/attachment.php?attachmentid=3418912&d=1437899706
Again I just did the standard stuff, rebooted, cleared cache and data to the gallery and camera app, but this time nothing was working. I finally decided to change my save location from my SD to my internal storage, and my pictures started saving again. So I connected the dots to what happened with Google Play Music earlier in the day, and checked my downloads, and nothing was downloaded anymore, option to save to SD was grayed out. Naturally I tried to format with the card in the phone, and it acted like it worked ok, but still showed I only had 11gb left of space, and still wouldn't work with anything. So I stuck it in my PC, and windows errors every time I try to format it. I tried with the default windows 8 formatting tool, I've tried with third party tools, same thing, won't format. Card appears to be read only now. How does this happen? It's the free 32GB card I got from LG with the extra battery and charging case I got for buying a G4 before June 30th. In fact I've only had this SD card for maybe a month. Is this some lolipop permissions keeping me from formatting it or is it hosed? I remember reading something about Google changing permissions on the SD with kitkat, but I also read they changed back with lolipop. I also read that LG didn't seem to notice they changed back and kept things the way they were with kitkat. If that's the case how do I take ownership of the whole card so I can format it?
Click to expand...
Click to collapse
I have no idea of the answer yet but if I find one I'll let you know. But this has happened to 3 different micro sd cards in my LG G4! I don't think it's an android issue I think it's an LG g4 issue. But I'm going to investigate further. Brand new sd cards working fine for a few days then rendered read only and unable to format even on a laptop!

This literally just happened to my 32gb card received with the bundle. Any update?

I had the same issue with a A-Data 128GB UHS-U1. After a month of usage it wouldn't mount on my phone. After trying to format via various means (Disk Management, Partition Magic, SD Formatter) I found my card was set to read-only and nothing would change that. I've had very good experiences with A-Data before so I chalked it up to a manufacturing defectand filed a RMA on the lifetime warranty. Ive got a spare 16GB popped in to see if it's the phone doing it (Also A-Data)., I hope its not the G4 because I love the phone. But if it is I'm not wasting another SD Card and buying another phone.

Sounds like a corrupt sd card somehow.

I have the same issue with a SanDisk 200GB Card as discussed here:
http://forum.xda-developers.com/g4/help/phone-upside-screen-off-t3227335
So it's the G4 that is killing the cards?

It's one of 2 things: Either manufacturing defects (which seems more likely) Or a G4 issue (In this case I would expect the issue to be more widespread then the low number of posts). The solution for some seems to be repartitioning the SD card, in my case though it reverts back even after the partitioning, SD Formatter indicates its stuck in read only.

It can also be some of the cards don't work well with the heat the G4 generates. On mines, it doesn't indicate read only but it seems I can't format or write to the card but I can delete from the card fine... I just tried SD Formatter and it basically shows what's attached, I thought only full size SD cards had the write protect switch, is there any software that can make the card write protected or not?

Almighty1 said:
It can also be some of the cards don't work well with the heat the G4 generates. On mines, it doesn't indicate read only but it seems I can't format or write to the card but I can delete from the card fine... I just tried SD Formatter and it basically shows what's attached, I thought only full size SD cards had the write protect switch, is there any software that can make the card write protected or not?
Click to expand...
Click to collapse
That's the exact same error message I got with SD Formatter, You could try with using partitioning software to see if that works, it was a no go for me. Regarding the heat, that could be an issue too, compared to my previous phone, the G4 runs really hot.

Any Partition software you recommend at it seems MiniTool Partition Wizard doesn't recognize etxfs as a filesystem. The G4 does run pretty hot, so much for the claims of the cards claiming to be resistant to everything...

I did try the Windows Disk Management Tool, but even that can't fix it. Well to be fair, no phone runs as hot as the G4 from my experience, guess LG still makes crap...

Has anyone tried the sd card fix floating around the g4 forum...it's posted at least once in the threads by micromod777 in tmo g4 forum...also to those with unlocked bl have you tried formatting in twrp?

Happened to me too. (SD from promo) I had to replace it. Nothing can be done about it. SD is trashed.

howlingmoon12 said:
I did try the Windows Disk Management Tool, but even that can't fix it. Well to be fair, no phone runs as hot as the G4 from my experience, guess LG still makes crap...
Click to expand...
Click to collapse
LG aka Lucky Goldstar had always been a low-end brand. The only reason I've switched from Motorola is because of the microSD slot and the removeable battery. Samsung's are more for looks too..
---------- Post added at 03:53 PM ---------- Previous post was at 03:52 PM ----------
jamesd1085 said:
Has anyone tried the sd card fix floating around the g4 forum...it's posted at least once in the threads by micromod777 in tmo g4 forum...also to those with unlocked bl have you tried formatting in twrp?
Click to expand...
Click to collapse
Got a link to the sd card fix?

Some good news, A-Data notified me that they be replacing my micro-sd no strings attached. Sad news is that I'm tried of hardware issues on Android devices. I considered the Moto X Pure and the Nexus 6P, but being a Canadian, I'm getting royally shafted by exchange rates, ended up getting an iPhone 6s.

Same exact issue here with the 32gb card I received free from the promo.

I got ahold of LG and they replaced it. I bought a much nicer sandisk uhs 64gb card while I waited and when the replacement came I put it in the wife's gs5, that was 3 months ago and it's still working so hopefully it'll continue to work
Sent from my Nexus 7 using Tapatalk

The replacement SanDisk 200GB MicroSD card I put in on October 30, 2015 had problems on November 17, 2015.
More details in the thread here:
http://forum.xda-developers.com/g4/help/phone-upside-screen-off-t3227335

deleted

I really think there was something wrong with the previous firmwares. My play music would wipe at least once a month and reading off the card was always sluggish. Ever since the 81010o update everything is fine, and I can take my card out and reinsert it and play music won't delete my music. Unfortunately I believe the previous firmwares were killing cards too
Sent from my LG-H810 using Tapatalk

Sd card keeps unmounting

Dear all,
How are you? I need help. Could someone tell me how to stop my external sd card being unmounted? It is very annoying and prevents me from performing any tasks properly. Sd card keeps unmounting then mounting on its own.

Fuadcim said:
Dear all,
How are you? I need help. Could someone tell me how to stop my external sd card being unmounted? It is very annoying and prevents me from performing any tasks properly. Sd card keeps unmounting then mounting on its own.
Click to expand...
Click to collapse
My wife is having that same issue on her VS985 with the 48A FW(6.0.1). I've called Verizon and they sent out a replacement (extended warranty) and it had other issues. They sent another one and it has the same SD card issue and also the screen goes black on her. Only batter pull fixes it. Today we are getting the next replacement. Hope it works this time cuz I think she'll have my hide if it doesn't.
I'm thinking that maybe the 48A FW doesn't agree with the SD cards. I'm on (rooted) 47A and not issues. She's completely stock. I know it's not the SD card because I put hers in my phone with no issues. I took my tablet SD card and put it in her phone and it has the same issue (the second replacement phone). She's threatening to buy an "if it were a phone" (iPhone):crying:.
Sorry I don't have an answer. Best of luck to you!

Anybody else?

Fuadcim said:
Anybody else?
Click to expand...
Click to collapse
My GF had the same problem with her G3. Sent it for repairs, they changed the mainboard. Seems fine so far. For me it was clearly a hardware related issue.

I'm having the same problem since yesterday. My phone keeps unmounting and mounting every SD card i'm putting there. May it be also related to software? I'm running latest Fulmics.

same thing is happening to my g3 running fulmics 6.9 im not sure if this is a software related issue or a hardware related issue. I have tried using different sd cards but it still unmounts

In my case it was unfortunately hardware issue. It's happening on all ROMs as well as on recovery. So i'm not using scdard with my G3 anymore.