I am using a 64GB Sandisk Memory Stick via USB and OTG adapter on a Oneplus 6. For backups, pictures, data, etc., and Titanium Backup. Works fine, unless every few weeks, even days, the phone reports that the external memory is corrupt and offers to "fix it", whereas the fix is really just formatting the memory, erasing everything on the external memory.
When this happens (and I don't fix/format), I can still read the memory stick on PC, but sometimes find corrupt files that can't be read.
I do eject properly, close all apps before, etc. Have tried all options in that directions.
What is the root cause for this?
- A defective memory stick?
- A defect in the phone?
- An Android issue?
- Something else?
As its very hard to reproduce the issue, I couldn't get my hands around it so far. Have others experienced similar? I have tried different adapters, but not yet different USB memory
CoffeeMachineSwitch said:
I am using a 64GB Sandisk Memory Stick via USB and OTG adapter on a Oneplus 6. For backups, pictures, data, etc., and Titanium Backup. Works fine, unless every few weeks, even days, the phone reports that the external memory is corrupt and offers to "fix it", whereas the fix is really just formatting the memory, erasing everything on the external memory.
When this happens (and I don't fix/format), I can still read the memory stick on PC, but sometimes find corrupt files that can't be read.
I do eject properly, close all apps before, etc. Have tried all options in that directions.
What is the root cause for this?
- A defective memory stick?
- A defect in the phone?
- An Android issue?
- Something else?
As its very hard to reproduce the issue, I couldn't get my hands around it so far. Have others experienced similar? I have tried different adapters, but not yet different USB memory
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No, its pretty normal. For an example i had a memory, my phone was finding it as corrupt, even trough i could see and edit its content, it shouldnt be a problem...
DankMemz said:
No, its pretty normal. For an example i had a memory, my phone was finding it as corrupt, even trough i could see and edit its content, it shouldnt be a problem...
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Click to collapse
Memory card*
Related
Hi,
I recently got an atrix [Bell Canada] and have been a happy user. However couple of days ago, I encountered a very strange problem. My phone has lots of free internal storage and a small 1GB memory card. Few days back, when I was taking pictures from the camera [default storage: internal], I noticed that the camera wasn't saving the pictures at all. It would take the picture, I'd hear the shutter sound thingy but the picture wasn't saved [there was no error message]. Upon further inspection, I noticed that all my previous pictures as well as all the songs were gone. I was travelling at that time and just switched the storage location to memory card and camera started saving pictures.
Today when I got home, I connected the phone to pc and my internal storage area is almost empty [just 71MB used by some applications]. I've lost all my pictures and songs from the storage and apparently there's no trace of them. I'm definite that I was listening to music and viewing pictures at least one day before I noticed this problem, and in between I didn't see anything strange on the phone.
Has anyone any clue what might be the cause and if there's a way to recover the old stuff? Searching the forums/google didn't yield anything. Here's the version num etc.
System Version: Blur_version.0.37.23.MB860.BellMobility.en.CA
Android Version: 2.2.2
Baseband version: N_01.77.15P
Kernel Version: 2.6.32.9
Build Number: OLYLA_U4_0.37.23
It is a stock froyo with yet locked bootloader and no root.
I've had the problem where the internal sdcard periodically gets wiped.
I know two causes for this problem:
1. A defective app. The first time it started happening to me was right after I had installed Go Launcher. I saw another user posted about it, and I uninstalled it - and after that, the problem dropped almost completely.
2. If the volume itself is damaged, Android will either attempt a repair, or wipe the entire volume. This most likely will have occurred when people are in the habit of just pulling the USB cable out without properly unmounting the volumes from the PC first. The best way to deal with this is to format the volume (full format, NOT quick format) and make sure to always unmount the drives before pulling the cable. Note that when you format a volume for Android (whether it's the internal sdcard, or the external one), it's best to use a 32k allocation size.
My SD card seems intact. I did plug the phone with the PC but I didn't mount internal storage [selected None in the USB Connection notification]. Also I didn't have any launcher installed. All the apps I had looked pretty harmless [all very common and/or by well known publishers]. Anyway, it seems like the problem would remain a mystery. Everything seems normal now. Thanks for your answer.
Side question: Is it safe to format the internal storage? I assume OS, apps, and other critical data is stored on the ROM which is separate.
faisaliqbal said:
My SD card seems intact. I did plug the phone with the PC but I didn't mount internal storage [selected None in the USB Connection notification]. Also I didn't have any launcher installed. All the apps I had looked pretty harmless [all very common and/or by well known publishers]. Anyway, it seems like the problem would remain a mystery. Everything seems normal now. Thanks for your answer.
Side question: Is it safe to format the internal storage? I assume OS, apps, and other critical data is stored on the ROM which is separate.
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First of all, how are you determining that your SD card is intact?
Second, I wasn't pointing at launchers specifically, nor did I say anything about malicious software or shady developers. Go Launcher is a very common app by a respected developer. I wasn't pointing at malware, I was pointing at applications with a bug - which can be any app whatsoever. If all this started happening after you installed something specific, it bears looking at - that's all.
As for your question, it's perfectly safe to format the internal sdcard, just make sure to look it over first, and backup anything you want to keep. Your camera may store the photos you take there, for example. Or Tasker stores the documentation it downloads there, etc... You're not going to harm the system itself in any way, but that doesn't mean there isn't something you'd miss. Just give it a look before you format.
It happened to me again, once again all the data was erased from internal memory. This time, I'm quite confident it was WinAmp app unless my phone has defective hardware (slim chance).
faisaliqbal said:
It happened to me again, once again all the data was erased from internal memory. This time, I'm quite confident it was WinAmp app unless my phone has defective hardware (slim chance).
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Even if it was WinAmp, it's probably not a bad idea to reformat the internal sdcard partition. If you choose to do this, I would recommend a full (not quick) format, using a 32k allocation size.
Ok, I formatted the internal storage as you said and then also updated to Gingerbread. I hope it doesn't happen again. It's just a pain in the a$$ to recover all the deleted media.
Keep your important stuff backed up to the external sdcard.
Just to suggest possible fix that worked for me and I had a hard time to find anything clearly connected with this issue.
Applies to: 32GB micro SD cards, possibly other rather huge capacities.
- LG GT540 (Optimus), seen reported similar problems on various devices but with unclear solution
Primary symptoms:
(Observed on Android 2.1 Eclair)
- SD Card preparation sometimes taking notably long time.
- SD Card is unexpectedly removed (couple times a day)
- SD Card is corrupted (solved by manual phone reboot)
- System randomly restarts (once or twice a day)
(Observed on Android 2.3.7 Gingerbread)
- System restarts during every SD Card preparation process,
after restart SD Card is working (ie. accessible by explorer) but no media files are accessible through standard applications (ie. gallery, music, player, etc.)
Suggested solution:
Format your SD Card with selected allocation unit size equal 8192 bytes (8KB)!
Drawbacks:
As far as I know using that small allocation unit may cause speed performance to suffer.
Full story:
My problems started right away I bought my 32GB micro SD to my new phone GT540. While I was using the SD only as a data storage it worked quite good. From time to time it needs to remount the SD or better reboot completely. After I tried hack App2SD, it was clear that it had been completely unstable. Shortly after I installed all application I wanted, system rebooted and every single user application was gone. So I moved to Link2SD which is more user-friendly way to have applications on SD on Eclair. It worked similar to App2SD but when system rebooted then just another reboot made apps work again. But by the time the whole problem only getting worse with restarts more than couple times a day, mostly when you needed the phone the most.
I believed that the issues were related mainly to non-standard application moving to SD so I decided to move to Gingerbread but there the issue went so bad. No media was cataloged so entire SD data was practically useless. Moreover system restarts on every SD card preparation. So I played around hard and after some time found a solution that's working for me rock solid. (3 days and counting...)
Desperate, I was trying formating any where possible. The really frustrating thing really is that the phone system itself formats the card wrong way! So it was hard to believe that there might be an issue. I tried only formating with 8kb allocation unit, not any other. It's perfectly solved my problems. I think that the original cluster size was 16kb. I've seen on forum suggestions to use 32kb unit as it should have the best performance over the size but I don't know yet if it's also working without issues. I may try it if any one post their experience I'll update this post to collect as much useful information about this as possible.
me too, will try this out
Got the same symptoms on a SGA (5830) running PAC ROM 20.1.0. A brand new SanDisk microSD 32GB (have verified the card is okay, using h2testw.exe). Will give this a go and update with outcome in a few days. Thankyou
So something weird just happened to me. I have HTC Sync Manager installed on a Windows XP laptop. I did not have Sync Manager running. I connected my phone to my computer and set it to media sync with USB debugging connected. My internal memory and SD card popped up. I went in and deleted files and folders I no longer wanted from both. I always do this on the computer because it's much faster. I set the phone back to charge only and then unplugged it. I went into astro to take a look, and noticed there were no files or folders in both the internal memory and the SD card. I went to the storage option in the system settings and it showed I had 100% free space on my SD card and internal memory. All my apps are there though, as the 2GB partition was unaffected. It seems my SD card and internal memory were formatted somehow.
Has anyone else had this happen to them?
rabid platypus said:
So something weird just happened to me. I have HTC Sync Manager installed on a Windows XP laptop. I did not have Sync Manager running. I connected my phone to my computer and set it to media sync with USB debugging connected. My internal memory and SD card popped up. I went in and deleted files and folders I no longer wanted from both. I always do this on the computer because it's much faster. I set the phone back to charge only and then unplugged it. I went into astro to take a look, and noticed there were no files or folders in both the internal memory and the SD card. I went to the storage option in the system settings and it showed I had 100% free space on my SD card and internal memory. All my apps are there though, as the 2GB partition was unaffected. It seems my SD card and internal memory were formatted somehow.
Has anyone else had this happen to them?
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Click to collapse
Sometimes Windows can play you dirty. I would first suggest upgrading to Windows 7 because the write access to files on usb media was much improved, I've seen this issue happen to me several times with USB drives or flash drives in general. Sometimes I copy things and after unplugging the device the file I copied is not there, even though when I copied it, it told me that the operation was completed successfully.
Second of all, I would suggest that anytime you do an operation like this, never disconnect the media immediately, let it sit for a bit if you deleted large files or a large amount of files. Last but not least, it could of been human error, sometimes we just mess up and we don't even realize it.
Are you having any other problems with the phone? Are your apps working? was the total folder structure of the /sdcard and /sdcard/sd_ext erased ?
Same thing happened to me yesterday. But for me I'm pretty sure I unplugged it too quick and lost everything. At least everything was still running fine. I performed a quick titanium and nandroid backup and I was fine
Sent from my EVO using xda app-developers app
megabiteg said:
Sometimes Windows can play you dirty. I would first suggest upgrading to Windows 7 because the write access to files on usb media was much improved, I've seen this issue happen to me several times with USB drives or flash drives in general. Sometimes I copy things and after unplugging the device the file I copied is not there, even though when I copied it, it told me that the operation was completed successfully.
Second of all, I would suggest that anytime you do an operation like this, never disconnect the media immediately, let it sit for a bit if you deleted large files or a large amount of files. Last but not least, it could of been human error, sometimes we just mess up and we don't even realize it.
Are you having any other problems with the phone? Are your apps working? was the total folder structure of the /sdcard and /sdcard/sd_ext erased ?
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Click to collapse
That's the funny thing. I let it sit for a minute until the phone fully loaded the memory just like I have done 100 times before. All apps are working, and the phone is working 100% otherwise. I'm guessing it's just a glitch, or a small voltage change could have wiped the memory.
That computer was my work computer, that's why it still has XP.
This problem has got to the point of forcing me to register on XDA forums. I have a Samsung G II running android 4.1.2 (jelly-bean of course) and over the past week the memory (storage) handling has gotten really bad. It's as if the OS has given up on storing items now. Problems include-
After taking, receiving or downloading a photo (generally over whatsapp but it occurs to other apps like wallbase) The photo will be stored on my phone for the day until i turn off my phone, now after turning it back on however the photos are gone just leaving a blank space which displays "unable to load" in the gallery.
Next issues is that my apps i now install get installed in the next dimension because they don't appear to be on my phone even when i do a file search or plug in the device into my computer. But here is where it gets crazy they are on my phone and do take space up, but it's no where to be found.
The OS now presumes i have an SD card even though i don't have one plugged in. Because of this! big games and Apps now now try to use this fake SD that doesn't exist and this causes them to give me errors along the lines of "Sd is full or inaccessible". Pffft
Please someone help me, this issue is annoying me so badly and is rendering my phone useless if it can't store data.
I appologize you were forced to register here @ this great forum and though you still might find your answer here,ironic,anyway.Have you tried wiping cache,dalvik and fixing permissions,are you even rooted?I did'nt see you mention that,so i have no idea,also,you might want to back up what you want to keep and format and partition your sd card,not sure how big your sd crad is either,so you might need a bigger sd card for all your stuff.I myself use a 32GB Sandisk,class 10 and it works great,never ran out of space or had any speed issues on my OG EVO.
Diablo67 said:
I appologize you were forced to register here @ this great forum and though you still might find your answer here,ironic,anyway.Have you tried wiping cache,dalvik and fixing permissions,are you even rooted?I did'nt see you mention that,so i have no idea,also,you might want to back up what you want to keep and format and partition your sd card,not sure how big your sd crad is either,so you might need a bigger sd card for all your stuff.I myself use a 32GB Sandisk,class 10 and it works great,never ran out of space or had any speed issues on my OG EVO.
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Click to collapse
Rooted? yes. I've deleted all the caches under the sun and still no results. And i have over 4Gb of free internal storage according to my phone. I have my data backed up but i'd rather have a direction to go before starting anything. :crying:
I'm not seeing anything for your phone except this... http://forum.xda-developers.com/showthread.php?t=2192122
I have a Samsung Galaxy S5 with update 6.0.1 with the latest security patch level applied 11/1/16. Recently my microSD card status will go between two indicators in the notification bar: 1) SD card - For transferring photos and media, or 2) SD card was removed, please insert a new one. In both cases the same micro SD card remains in the phone. When I receive the message that the card has been removed, I can click on Storage in the Settings menu and see that only internal storage appears. At some point the SD card will reappear with the message from #1. I can restart my phone, I can turn it off and back on again, etc. but none of those things seem to alter the phone status of identifying that an SD card exists in the phone. It's quite annoying especially when I want to take photos or am transferring data from internal storage to the SD card when it suddenly becomes "removed". However, again, the change from being considered installed/mounted or missing/removed will happen at any time whether I'm using my phone or not. I've started to wonder whether I picked up a virus by visiting a site while reading news through the Google Play Newstand., which I've been doing a lot lately,.. but I've installed/uninstalled at least 5 different anti-virus/malware software and nothing is identifying a problem on my phone. AVG, McAfee, Bitdefender, Kaspersky, Malwarebytes Anti-Malware.
The only other oddity I have noticed about the same time is that I have Verizon Protection and Support which suddenly acted like I had never used it before and made me agree to the terms of use again - once I say ok to the terms, it returns that it cannot access data and try again later. Nothing I have done related to that software has worked and Verizon's only suggestion is to factory reset in which some users indicated that did not resolve the problem.
Has anyone else experienced either of these issues and found resolutions? Thank you in advance for any assistance you can provide.
sparky99kms said:
I have a Samsung Galaxy S5 with update 6.0.1 with the latest security patch level applied 11/1/16. Recently my microSD card status will go between two indicators in the notification bar: 1) SD card - For transferring photos and media, or 2) SD card was removed, please insert a new one. In both cases the same micro SD card remains in the phone. When I receive the message that the card has been removed, I can click on Storage in the Settings menu and see that only internal storage appears. At some point the SD card will reappear with the message from #1. I can restart my phone, I can turn it off and back on again, etc. but none of those things seem to alter the phone status of identifying that an SD card exists in the phone. It's quite annoying especially when I want to take photos or am transferring data from internal storage to the SD card when it suddenly becomes "removed". However, again, the change from being considered installed/mounted or missing/removed will happen at any time whether I'm using my phone or not. I've started to wonder whether I picked up a virus by visiting a site while reading news through the Google Play Newstand., which I've been doing a lot lately,.. but I've installed/uninstalled at least 5 different anti-virus/malware software and nothing is identifying a problem on my phone. AVG, McAfee, Bitdefender, Kaspersky, Malwarebytes Anti-Malware.
The only other oddity I have noticed about the same time is that I have Verizon Protection and Support which suddenly acted like I had never used it before and made me agree to the terms of use again - once I say ok to the terms, it returns that it cannot access data and try again later. Nothing I have done related to that software has worked and Verizon's only suggestion is to factory reset in which some users indicated that did not resolve the problem.
Has anyone else experienced either of these issues and found resolutions? Thank you in advance for any assistance you can provide.
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Try Using your device without SD card for some time and then put that chip again. If the situation persist try wiping Cache of Your phone.
There is probably to many webdavs using all your cu. Obtrusive. To root or not to root. Providers say that root is what causes issues of vulnerability. You get these problems ether way but you can only fix with root.
What ever the problem is formatting your car should straighten it out. If you don't want to arrange your files a quick fix for webdav is to use root explorer. Search for "nomedia"and delete them all. Hopefully only apps you want have a good enough grip to put them back.
Sent from my SM-N910P using Tapatalk
abhinavp649 said:
Try Using your device without SD card for some time and then put that chip again. If the situation persist try wiping Cache of Your phone.
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Click to collapse
Thank you. I don't know how long you mean for "some time" but I did for about 30 minutes. I did use McAfee to clear app cache to free up space but I just checked and my current message is "SD card removed. Insert a new one" so apparently that didn't do it. I' did not allow it to clear thumbnails though.
planb234 said:
There is probably to many webdavs using all your cu. Obtrusive. To root or not to root. Providers say that root is what causes issues of vulnerability. You get these problems ether way but you can only fix with root.
What ever the problem is formatting your car should straighten it out. If you don't want to arrange your files a quick fix for webdav is to use root explorer. Search for "nomedia"and delete them all. Hopefully only apps you want have a good enough grip to put them back.
Sent from my SM-N910P using Tapatalk
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Click to collapse
Well, until now I considered myself fairly tech savvy... but I am not sure what webdavs are or what it means to root or not. Is root explorer software? And then, the next question is where would I search for "nomedia"? If you'd rather I do more research on these myself I can do that, no worries... but if they are easy enough to explain that would be great. Thanks so much!
sparky99kms said:
Thank you. I don't know how long you mean for "some time" but I did for about 30 minutes. I did use McAfee to clear app cache to free up space but I just checked and my current message is "SD card removed. Insert a new one" so apparently that didn't do it. I' did not allow it to clear thumbnails though.
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Click to collapse
Some time means at least a day.
And wiping Cache here I meant Clear the Entire Phone's Cache through Recovery
Good browsers have a search bar in them. A web dav is a network connection to a folder. If it is causing your card not to work now than likely it was put there by a demon and you want it gone. If you don't know what root is then you are a long ways out from putting up a fight. The only thing I could really advise you to do is do a factory reset that includes formatting the card. If you do ever decide to root be very careful the method.
Sent from my SM-N910P using Tapatalk