Develop Bugs

[Q] SD Card makes my phone hang constantly.

I have a Sandisk Ultra Class 10 64GB card. Worked great for 5 months. A week ago, my phone started hanging like crazy. First 2-3 times a day, then 20-30 times a day. I factory reset my phone, but with the same problem.
Then I removed the SD card and phone started working perfectly again. Inserted the SD card, then same phone hanging problem.
You may note, I have never got any SD error message. The phone only hangs.
Any idea if this can be repaired with a format of the SD card or is it a hardware failure ?
Help will be appreciated.

JulyDerek said:
I have a Sandisk Ultra Class 10 64GB card. Worked great for 5 months. A week ago, my phone started hanging like crazy. First 2-3 times a day, then 20-30 times a day. I factory reset my phone, but with the same problem.
Then I removed the SD card and phone started working perfectly again. Inserted the SD card, then same phone hanging problem.
You may note, I have never got any SD error message. The phone only hangs.
Any idea if this can be repaired with a format of the SD card or is it a hardware failure ?
Help will be appreciated.
Click to expand...
Click to collapse
Its because ya phone is compatible upto 32gb . If ya use 64gb or more it ll hang !!
Hit the thx button if i helped ya in anyways

64GB also will work fine
format to fat32
window won't allow you for >32GB card
read toolbox in my sugnature for third party tool.

dr.ketan said:
64GB also will work fine
format to fat32
window won't allow you for >32GB card
read toolbox in my sugnature for third party tool.
Click to expand...
Click to collapse
I formatted it to FAT32 when I bought it 5 months ago. Working great for 5 months. Haven't received any Read or Write errors yet.
Would the phone hang because of an SD card?

JulyDerek said:
I have a Sandisk Ultra Class 10 64GB card. Worked great for 5 months. A week ago, my phone started hanging like crazy. First 2-3 times a day, then 20-30 times a day. I factory reset my phone, but with the same problem.
Then I removed the SD card and phone started working perfectly again. Inserted the SD card, then same phone hanging problem.
You may note, I have never got any SD error message. The phone only hangs.
Any idea if this can be repaired with a format of the SD card or is it a hardware failure ?
Help will be appreciated.
Click to expand...
Click to collapse
Are you using the SD card in Fat32 or exFat file system ? I had a similar kind of issue before. Remove the card and using a card reader, connect it to PC to check for possible malware/virus on the card. And then format the card completely on PC( not on phone) and most probably it should solve the issue.

JulyDerek said:
I formatted it to FAT32 when I bought it 5 months ago. Working great for 5 months. Haven't received any Read or Write errors yet.
Would the phone hang because of an SD card?
Click to expand...
Click to collapse
Yes it can cause issue
Format it again
insert card, if there is no issue restore data after scanning with good antivirus.

The very first day i got my Note i had this problem,(samsung 32GB card.
after several resets etc same problems, it was so bad that it even crashed the radio part of the device!
I was about to return the device when i remembered that we had similar issues with the Htc pro 2 with windows mobile,
After a few minute of scanning my brain it hit me, Pictures and thumbnails!
I then deleted all pictures from the card and thumbnails and behold, problem gone.:laugh:
In my case it was a corrupted picture or thumbnail that was crippling the device,but if i use the card in other devices as the galaxy s 3 mini there was no problems there.

Use exFAT!
It's better than FAT32 and it has file support that is bigger than 4gb

Damm! Its hung twice again, without the SD card... And in the last 6 months never hung even once.
What do I do?
Sent from my GT-N7100 using Tapatalk 2

Have you reflash ROM?

dr.ketan said:
Have you reflash ROM?
Click to expand...
Click to collapse
I factory reset it. How do I reflash the ROM?
Sent from my GT-N7100 using Tapatalk 2

JulyDerek said:
I factory reset it. How do I reflash the ROM?
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
Get it from here/sammobile and flash as instructed in post#1
http://forum.xda-developers.com/showthread.php?t=1896696

Maybe it's a corrupted file in it.. Try formating it then try it when it's empty, if there is no issues then yea there is a corrupted file was in it..
Also try to make it exFAT with perseus or RedPill kernel, as far as I know, they support exFAT..
Sent from my GT-N7100

[email protected] said:
Use exFAT!
It's better than FAT32 and it has file support that is bigger than 4gb
Click to expand...
Click to collapse
What He/She said!!!!

(solved) 64gb sd card stuck on read only

Hey! So my 64gb SanDisk microsd card was working fine then the other day it decided to switch to read only, and nothing I do will fix it, windows refuses to format it, ubuntu says it did but the data remains untouched, nothing works! Any help?
Sent from my SAMSUNG-SGH-I747 using xda premium

Try downloading root explorer and mounting it as r/w
Sent from my SGH-I747 using xda app-developers app

do you use an adapter to connect it to your pc?
also, i had a sandisk usb flash drive. 2 of my coworkers had a flash drive and micro sd go out in december and january. coincidence? perhaps...

dima470 said:
Try downloading root explorer and mounting it as r/w
Edit: thanks bro! Didn't see the option to mount as r/w, that fixed it!
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
It says the permissions cannot be changed because the file system is read only
Sent from my SAMSUNG-SGH-I747 using xda premium

Andrew_han said:
It says the permissions cannot be changed because the file system is read only
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
How was this solved?

something similar happened to me with mine. I had to reformat it and I lost everything that was on it but it works now.

Same Issue
I has been dealing with this issue ...now with two SanDisk Micro sd cards XC I, I did tried to format in almost all the know ways...tried Linux, Windows, command line, Different adapters, Different computers, tried with the Storage feature from the Android OS,
Now I have two beatiful 64G micro sd cards....READ ONLY. Also if you browse the content in the file explorer from the computer the Delete option is not listed in the explorer.
Is there any magic tool that can remove this read only feature from the cards????????

same issue
etvelec77 said:
I has been dealing with this issue ...now with two SanDisk Micro sd cards XC I, I did tried to format in almost all the know ways...tried Linux, Windows, command line, Different adapters, Different computers, tried with the Storage feature from the Android OS,
Now I have two beatiful 64G micro sd cards....READ ONLY. Also if you browse the content in the file explorer from the computer the Delete option is not listed in the explorer.
Is there any magic tool that can remove this read only feature from the cards????????
Click to expand...
Click to collapse
Same issue here: did you update ROM to 4.3 version? I read that it could contain a setting within the platform.xml file that you find into system/etc/permission folder. See this
I tried it but with no success.
I hope you're luckier

Btw i sent it back to Amazon asking for refund (and they agreed). Bye
Sent from my GT-N7100 using XDA Premium 4 mobile app

Dika2110 said:
Same issue here: did you update ROM to 4.3 version? I read that it could contain a setting within the platform.xml file that you find into system/etc/permission folder. See this
I tried it but with no success.
I hope you're luckier
Click to expand...
Click to collapse
I warn you trying this setting. I tried this >>> Editing .XML file. I started getting severe force closes especially Google Frame Work Services. Even reverting did not help. Had to use my Nandroid Backup to go back.
4.3 is sucking so far for 64 GB External SD Card write support. Titanium Backup & Helium both apps can not do automatic scheduled Backups on External SD Card since 99% of the time they do not get Write Access. Only way to do an external SD Card backup is manually after rebooting the phone, even that is hit n miss.

blasterrr said:
I warn you trying this setting. I tried this >>> Editing .XML file. I started getting severe force closes especially Google Frame Work Services. Even reverting did not help. Had to use my Nandroid Backup to go back.
4.3 is sucking so far for 64 GB External SD Card write support. Titanium Backup & Helium both apps can not do automatic scheduled Backups on External SD Card since 99% of the time they do not get Write Access. Only way to do an external SD Card backup is manually after rebooting the phone, even that is hit n miss.
Click to expand...
Click to collapse
I agree with you. 4.3 is still far from 64Gb SD Card support, and I know that editing this file can be dangerous, but I read that someone was able to restore his card and due to its cost was worth a try. During my tentative, this update didn't have effect (but at least I didn't get more troubles).

Same issue.
64GB SanDisk card from my Note 3 (search brought me here) became read only after 5 months.
I've ended up sending it under warranty back to SanDisk.
I'm glad I didn't loose anything as I've backed it up but still don't like the idea of returning something with a lot of my data and photos I can't delete.

may have found solution
Lembo said:
Same issue.
64GB SanDisk card from my Note 3 (search brought me here) became read only after 5 months.
I've ended up sending it under warranty back to SanDisk.
I'm glad I didn't loose anything as I've backed it up but still don't like the idea of returning something with a lot of my data and photos I can't delete.
Click to expand...
Click to collapse
I was having the very same problem. I finally went into the computer management, and was about to throw phone across room....when I tried to format one last time. This time I unchecked the quick format. It is taking longer, but seems to be working...I am keeping fingers crossed.
Full Format has finished and card is saved! Hope this helps anyone in the future.

LG G Pad 8.3 not read SD Card sometimes after KitKat update from LG.

My g pad 8.3 sometimes does not recognize SD card after I updated to official stock KitKat update v50020A through LG support tool. It is recognized again after I reboot the tablet. Any permanent fix for this?
Sent from my LG-V500 using Tapatalk

getmealive said:
My g pad 8.3 sometimes does not recognize SD card after I updated to official stock KitKat update v50020A through LG support tool. It is recognized again after I reboot the tablet. Any permanent fix for this?
Sent from my LG-V500 using Tapatalk
Click to expand...
Click to collapse
Need more info.
Are you hibernating something you shouldn't?
What kind of card?
Have you tried replacing the card to make sure its the device?
Have you fixed the permissions in /etc/permissions/platform.xml?
Have you rooted?
Custom recovery?
Does recovery recognize your sdcard?
Did you eat breakfast this morning?

sleekmason said:
Need more info.
Are you hibernating something you shouldn't?
What kind of card?
Have you tried replacing the card to make sure its the device?
Have you fixed the permissions in /etc/permissions/platform.xml?
Have you rooted?
Custom recovery?
Does recovery recognize your sdcard?
Did you eat breakfast this morning?
Click to expand...
Click to collapse
No hibernation..my card is SD. SD card is randomly
Unmounted automatically sometimes.
But now it is fixed after I did recovery through LG PC Suite.
Sent from my LG-V500 using Tapatalk

SD Card Problems in 4.4
I think there is a issue since the upgrade to 4.4 I have just been on mine and twice it shows No SD card present if you restart it comes back ok
Same card as before update so I can only assume its a issue in the 4.4 program
As ggogel don't seem to like SD cards anyway !!

No problem here with sd card after upgrading to kitkat VIA OTA

I'm in Australia too, updated yesterday to V50020a. Have experienced intermittent SD card issues (presumably random unmounting), although the 32gb Sandisk did cop a massive workout courtesy of Play Music's new ability to save to it - loving that! I'm pretty sure this G Pad 8.3 had "quiet time" before the update - can't seem to find it now so I have to turn the volume off at night. This is annoying because it plays a notification sound every time the SD card unmounts Maybe I missed something, suggestions appreciated
Sent from my LG-V500 using Tapatalk

Hugo-PT said:
No problem here with sd card after upgrading to kitkat VIA OTA
Click to expand...
Click to collapse
Are you able to write to the card?

Park82 said:
Are you able to write to the card?
Click to expand...
Click to collapse
Play Music copied about 2gig to it , did so in chunks as the card kept dropping out. I've had no issues with it today and it has not unmounted at all, although I don't think any apps have required access to it since yesterday. Maybe the SD card went into shock yesterday with all the writing it got, it usually is scantly accessed. I should point out that this KitKat update offers the single most useful feature for me - and that is Play Music's new setting of being able to cache to the External SD card - as a subscriber with a large library I can now store so much more for playback offline!!! Very pleased.
Sent from my LG-V500 using Tapatalk

Deleted

I am also very happy with play music and play movies able to save my favorite movies and music to SD card.. even the built-in web browser is able to download files straight to SD card. But I still can't write to SD card by using third-party file manager like FX file manager.
Sent from my LG-V500 using Tapatalk

i have the same problem. but it doesnt matter if i am on cm11 or stock. I thought my sd card is broken...

Park82 said:
Are you able to write to the card?
Click to expand...
Click to collapse
Yes, I can write on the card.

Hugo-PT said:
Yes, I can write on the card.
Click to expand...
Click to collapse
Via a file manager on the tab? Since upgrading to 4.4.2 I can not. I've seen the work around but it involves rooting which I didn't want to do yet.
Sent from my GT-I9300

After updating to 4.4.2 I also noticed that my SD Card is constantly unmounted/mounted which is pretty annoying. Formatting SD Card again didn't help. I have got V50020a ROM, anyone encountered this on V50020b?

Hugo-PT said:
Yes, I can write on the card.
Click to expand...
Click to collapse
You are not allowed to write on external storage with third-party applications on KitKat. Only Some Google apps and LG apps can write to external storage
Sent from my LG-V500 using Tapatalk

Park82 said:
Via a file manager on the tab? Since upgrading to 4.4.2 I can not. I've seen the work around but it involves rooting which I didn't want to do yet.
Click to expand...
Click to collapse
Guys, sorry by wrong information. I can write on card, but not everything. Even with it rooted.
---------- Post added at 01:48 PM ---------- Previous post was at 01:11 PM ----------
getmealive said:
You are not allowed to write on external storage with third-party applications on KitKat. Only Some Google apps and LG apps can write to external storage
Click to expand...
Click to collapse
Yes is correct, with kitkat are restricting write access to SD cards. I use ES file explorer, but there still limitations in its use.

Hugo-PT said:
Guys, sorry by wrong information. I can write on card, but not everything. Even with it rooted.
Click to expand...
Click to collapse
This really sucks! I often copy content to it via wifi, now I can not I don't want to root just yet. If I knew this would have happened I would not have upgraded yet.

Only way is root to fix this or wait for a Update

I also have this problem with 20b!
Sent from my LG-D802 using Tapatalk

LRS save me : http://forum.xda-developers.com/showthread.php?t=2621904
No more SD card issue

Suddenly Getting SD Card Unexpectedly Removed Error

Been working fine for over a month now all of a sudden the SD card appears to be randomly mounting/unmounting itself and has become unreadable on my phone.
I've put the SD card in my PC and it works fine so I suspect my phone has developed a fault. I hope I don't have to get an exchange as it's otherwise faultless and I'm dreading getting a unit that can't be S-Off'd
I haven't modified or installed anything prior to the fault developing,
Any tips would be most welcome.
PS It's a genuine Transcend Premium 300x 64GB bought from MyMemory.

stuart0001 said:
Been working fine for over a month now all of a sudden the SD card appears to be randomly mounting/unmounting itself and has become unreadable on my phone.
I've put the SD card in my PC and it works fine so I suspect my phone has developed a fault. I hope I don't have to get an exchange as it's otherwise faultless and I'm dreading getting a unit that can't be S-Off'd
I haven't modified or installed anything prior to the fault developing,
Any tips would be most welcome.
PS It's a genuine Transcend Premium 300x 64GB bought from MyMemory.
Click to expand...
Click to collapse
Is it exfat or fat 32
Sent from my HTC One_M8 using XDA Premium 4 mobile app

Android The Greek said:
Is it exfat or fat 32
Sent from my HTC One_M8 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
exfat

stuart0001 said:
Been working fine for over a month now all of a sudden the SD card appears to be randomly mounting/unmounting itself and has become unreadable on my phone.
I've put the SD card in my PC and it works fine so I suspect my phone has developed a fault. I hope I don't have to get an exchange as it's otherwise faultless and I'm dreading getting a unit that can't be S-Off'd
I haven't modified or installed anything prior to the fault developing,
Any tips would be most welcome.
PS It's a genuine Transcend Premium 300x 64GB bought from MyMemory.
Click to expand...
Click to collapse
so are you on stock? if so have you tried a factory reset?

stuart0001 said:
exfat
Click to expand...
Click to collapse
Copy everything off sd card. Convert to fat 32. Copy everything back.
Sent from my HTC One_M8 using XDA Premium 4 mobile app

lukes91 said:
so are you on stock? if so have you tried a factory reset?
Click to expand...
Click to collapse
Stock but rooted and S-Off'd
I've not tried a reset yet but it's been as good as gold until about an hour ago when it suddenly started flashing between "preparing SD card" & "SD card unexpectedly removed"

Android The Greek said:
Copy everything off sd card. Convert to fat 32. Copy everything back.
Sent from my HTC One_M8 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I'll give that a go but why has it been working fine for over a month whilst exFAT if that is now the cause?

stuart0001 said:
Stock but rooted and S-Off'd
I've not tried a reset yet but it's been as good as gold until about an hour ago when it suddenly started flashing between "preparing SD card" & "SD card unexpectedly removed"
Click to expand...
Click to collapse
well, a simple solution is to enter recovery and see if the sdcard works there if this way it works, change the rom/perform factory reset, if this doesn't, well, you might try to flash everything again, but i's possible that the sd slot is broken...
i wish you all the luck, let me know

I would copy EVERYTHING off the card to a PC and do a format and try a different file system. I would has perform the format on the phone, to make sure its gets formatted to the correct file systems.
Long story short, It sounds like you memory card is starting to get Corrupted. I have to SanDisk cards that started doing that in the biginning and ended up not being read at all on PC nor the Phone.
Also while its doing that, youll also notice the battery start to drain more, at leasst thats what happended on my Note 3 when I had the san disk cards going corrupt.
Ended up buying new Card and now everything is fine.
I doubt is the card reader built in phone, more then likely its your memory card going corrupt.

hypersonicx said:
I would copy EVERYTHING off the card to a PC and do a format and try a different file system. I would has perform the format on the phone, to make sure its gets formatted to the correct file systems.
Long story short, It sounds like you memory card is starting to get Corrupted. I have to SanDisk cards that started doing that in the biginning and ended up not being read at all on PC nor the Phone.
Also while its doing that, youll also notice the battery start to drain more, at leasst thats what happended on my Note 3 when I had the san disk cards going corrupt.
Ended up buying new Card and now everything is fine.
I doubt is the card reader built in phone, more then likely its your memory card going corrupt.
Click to expand...
Click to collapse
I agree most likely the card. I'd download an sd card format tool and do a full format, don't use Windows format then do full check for bad sectors. I had a similar problem and it was the card at fault, but strangely worked ok on the pc.

stuart0001 said:
I'll give that a go but why has it been working fine for over a month whilst exFAT if that is now the cause?
Click to expand...
Click to collapse
I have been through many a Samsung phones and always had corrupt sd cards in exfat. One day I saw a thread that said convert to fat32 and have never had a problem since.
Sent from my HTC One_M8 using XDA Premium 4 mobile app

Thanks for all the advice.
I could read the card in recovery but it failed to format there.
I tried to format in windows but my only options were NTFS or exFAT, no FAT32. But this failed anyway also.
Downloaded a SD format application but this said the card was write protected and to move the lock switch, obviously MicroSD has no switch like standard SD.
So next I deleted all the files on the card and ran h2testw test. This failed and reported card is probably faulty.
Then I checked the contents of the card again and all the original files were back again, so it's definitely 'Donald Ducked'. I was able to get all my files backed up and fortunately I had my photos already thanks to Dropbox & G+.
So I will now look at getting MyMemory to replace it but my fear is they will want me to return the faulty card but it has sensitive information on it that I can't delete. Any ideas on how I can wipe it?

stuart0001 said:
Thanks for all the advice.
I could read the card in recovery but it failed to format there.
I tried to format in windows but my only options were NTFS or exFAT, no FAT32. But this failed anyway also.
Downloaded a SD format application but this said the card was write protected and to move the lock switch, obviously MicroSD has no switch like standard SD.
So next I deleted all the files on the card and ran h2testw test. This failed and reported card is probably faulty.
Then I checked the contents of the card again and all the original files were back again, so it's definitely 'Donald Ducked'. I was able to get all my files backed up and fortunately I had my photos already thanks to Dropbox & G+.
So I will now look at getting MyMemory to replace it but my fear is they will want me to return the faulty card but it has sensitive information on it that I can't delete. Any ideas on how I can wipe it?
Click to expand...
Click to collapse
How did you attach the card to the pc? Try a usb card reader and then try again. If still problems download mini partition tool (Google) and delete the partition. You can then wipe it properly.

I reformatted the SD card from the settings within the phone and since then it been working fine :\
make sure you're using 2.0USB also..

when i connect my phone to charger
Its been few days i am noticing when i conmect my phone to charger it says 'sd card removed unexpectedly or either it suddenly stops showing content from my phone, then i have to go to settings unmount/mount the sd card frkm storage option and then it shows the content even when charging, or sometjmes it doesn'fshow option for that so on that case i have to restart my phone. What could be the possible reason and solution to that. It was fine on 4.4.4 now i am on 5.0.2 all stock htc one m8 h/k edition with sim unlock and s-off via sunshine.

[Q] LG G3 slow after SD card

Hello-
I received a Samsung 16gb SD for my LG G3 from my partner this weekend. Since installing it and adding stuff to it every time I click the home screen all my widgets and apps have disappeared and it takes about 5 seconds for them all to return. I have added some apps to the SD card and used smart clean by LG to clean up the internal card. I tried unmounting and soft resetting the phone as someone mentioned a fix when browsing the net but still no help.
Does anyone else have this problem?
It is an official SD card by the way as it came with her Galaxy S4. I have the 16GB/ 2g ram version

Dr M Cross said:
Hello-
I received a Samsung 16gb SD for my LG G3 from my partner this weekend. Since installing it and adding stuff to it every time I click the home screen all my widgets and apps have disappeared and it takes about 5 seconds for them all to return. I have added some apps to the SD card and used smart clean by LG to clean up the internal card. I tried unmounting and soft resetting the phone as someone mentioned a fix when browsing the net but still no help.
Does anyone else have this problem?
It is an official SD card by the way as it came with her Galaxy S4. I have the 16GB/ 2g ram version
Click to expand...
Click to collapse
I would backup all the data and format the SD inside your phone. After that restore data to the SD. Have also done this when going from an SGS4 to the G3. While the card did work, after formatting everything was much faster

Pfeffernuss said:
I would backup all the data and format the SD inside your phone. After that restore data to the SD. Have also done this when going from an SGS4 to the G3. While the card did work, after formatting everything was much faster
Click to expand...
Click to collapse
Ok cool. I did format the card when I plugged it in the first time so will copy everything over to my Pc, Format the card using the phone and then copy everything back over. Will update with results later.

Dr M Cross said:
Ok cool. I did format the card when I plugged it in the first time so will copy everything over to my Pc, Format the card using the phone and then copy everything back over. Will update with results later.
Click to expand...
Click to collapse
So did everything as requested and still the phone is slow. However I did notice that when the card was wiped the phone still stuttered. Could it be that the SD card is too slow to read from?
Had to delete apps. Nothing was connected!

i have a 64GB Samsung SDXC ard and yes it slows the whole phone down i think its got something to do with Samsung not playing well with LG soon as a replaced mine with a Team branded sdxc card it worked again shame the Samsung one was meany to be a fast card

I am using a samsung evo 32gb class 10 card no such issue

Dr M Cross said:
Hello-
I received a Samsung 16gb SD for my LG G3 from my partner this weekend. Since installing it and adding stuff to it every time I click the home screen all my widgets and apps have disappeared and it takes about 5 seconds for them all to return. I have added some apps to the SD card and used smart clean by LG to clean up the internal card. I tried unmounting and soft resetting the phone as someone mentioned a fix when browsing the net but still no help.
Does anyone else have this problem?
It is an official SD card by the way as it came with her Galaxy S4. I have the 16GB/ 2g ram version
Click to expand...
Click to collapse
Is it class 10? well this maybe off topic but I'm using 64gb class 10 from Transcend no issues too or whatsoever. It's also fast when the phone reads it. So i might be thinking that depending on what class your SD card might be since read/transfer rate depends on it. Hope this helps.