Develop Bugs

[Q] Micro SD card HELP!!

Ok So i have 2 micro sd cards one 8GB and one 32GB. I had recently just bought the 32GB one to give myself a good amount of space but unfortunately they both just stopped working all together. Basically one day my GS3 just began rejecting my 32GB card so i attempted to format it on my computer with a usb adapter, i tried both windows and mac os trying a range of programs but it just won't format. I even tried to format it using CWM but it can't mount it. but i don't think its fried because i just got it and it was working fine for like 2 - 3 weeks...so then i put my 8GB card in for 2 days and same thing...can't format or erase or mount on android...i've searched all over the web and need help cuz at this point i feel like my phone is destroying SD cards.
And one last piece on info if it helps I'm running the task AOKP 4.1.1 rom with their latest release and their latest O/C Kernel and clockwork mod touch on an AT&T Galaxy s3
please help as soon as possible

blanco613 said:
Ok So i have 2 micro sd cards one 8GB and one 32GB. I had recently just bought the 32GB one to give myself a good amount of space but unfortunately they both just stopped working all together. Basically one day my GS3 just began rejecting my 32GB card so i attempted to format it on my computer with a usb adapter, i tried both windows and mac os trying a range of programs but it just won't format. I even tried to format it using CWM but it can't mount it. but i don't think its fried because i just got it and it was working fine for like 2 - 3 weeks...so then i put my 8GB card in for 2 days and same thing...can't format or erase or mount on android...i've searched all over the web and need help cuz at this point i feel like my phone is destroying SD cards.
And one last piece on info if it helps I'm running the task AOKP 4.1.1 rom with their latest release and their latest O/C Kernel and clockwork mod touch on an AT&T Galaxy s3
please help as soon as possible
Click to expand...
Click to collapse
Yeah, this happens to me too. Reboot, let the phone say the card is damaged, open the back case while the phone is on, remove and re-insert sdcard and that should solve your problems.

finnmacool said:
Yeah, this happens to me too. Reboot, let the phone say the card is damaged, open the back case while the phone is on, remove and re-insert sdcard and that should solve your problems.
Click to expand...
Click to collapse
sorry but it didn't work its not mounting any other suggestions...

Us the HP usb format tool to format it in your computer.
Sent from my SAMSUNG-SGH-I747 using xda premium

One program.. http://www.easeus.com/ easus partition manager. Format anything there it works. There is a thread on the 32gig on this already. Format to fat32
Sent from my SGH-I747 using xda premium

Sorry guys neither program worked

If you are using windows try using the Command prompt. You will need to select the volume of the sd cards then delete it. I beleive they will become as RAW disks where you will have create them as new disks from disk management.

n0th1n9 said:
If you are using windows try using the Command prompt. You will need to select the volume of the sd cards then delete it. I beleive they will become as RAW disks where you will have create them as new disks from disk management.
Click to expand...
Click to collapse
would you be able to explain that in just a bit more detail...like the commands and such
thank you so much in advance.

blanco613 said:
would you be able to explain that in just a bit more detail...like the commands and such
thank you so much in advance.
Click to expand...
Click to collapse
Open up an admin command prompt, then type 'diskpart' it'll start the utilitiy in command prompt. Then type 'list volume' it'll show volumes 0 through ~8 or so depending on how many you have. Once you know the number that is associated with your sdcard volume, then type 'select volume x' x being the number of your volume. Then type 'delete volume'
After that go into disk management and find your sdcard. It'll say unallocated. Right mouse click and create new simple volume.

n0th1n9 said:
Open up an admin command prompt, then type 'diskpart' it'll start the utilitiy in command prompt. Then type 'list volume' it'll show volumes 0 through ~8 or so depending on how many you have. Once you know the number that is associated with your sdcard volume, then type 'select volume x' x being the number of your volume. Then type 'delete volume'
After that go into disk management and find your sdcard. It'll say unallocated. Right mouse click and create new simple volume.
Click to expand...
Click to collapse
sorry it still didn't work...it now picks up my 32GB micro sd card as a 31mb of RAW storage that is not formatable in any way. And my 8GB in the same way but for some reason 121mb of RAW...
i seriously have no clue whats going on with my stuff...
if anyone has any clue please let me know...and i know there are a lot of post about micro sd cards out there but i have never seen anything like this...
and thank you everyone for the help that i'm getting and any more help that you can offer

Did you buy real microsd cards ?
they are probably fake lol

expertzero1 said:
Did you buy real microsd cards ?
they are probably fake lol
Click to expand...
Click to collapse
no they are SanDisk...got em at radio shack...

so maybe the sd card slot is faultyyyy

expertzero1 said:
so maybe the sd card slot is faultyyyy
Click to expand...
Click to collapse
ill stick another one in there and see...only a 1gb this time...its just annoying because they were both working perfectly and so was the phone.

blanco613 said:
ill stick another one in there and see...only a 1gb this time...its just annoying because they were both working perfectly and so was the phone.
Click to expand...
Click to collapse
ok i can report that it is not the phone...i just stuck my other 4gig sd card in there and it work fine...any new ideas...cuz i really dont want to have to buy 2 new sd cards

blanco613 said:
ok i can report that it is not the phone...i just stuck my other 4gig sd card in there and it work fine...any new ideas...cuz i really dont want to have to buy 2 new sd cards
Click to expand...
Click to collapse
Go here:
https://www.sdcard.org/home/
Download the SD Card Formatter and try to format your card using that tool; see if that works. I made the mistake of formatting my brand-new SanDisk 64GB microSD card, which worked perfectlyin my Galaxy S III prior to that, and it wouldn't work afterwards. I tried all different methods of formatting & formatting programs to no avail. As soon as I used this program, my card worked like a charm in my phone again!
Good luck!
Dennis

Ive tried that and many other formatting programs but none of them work
Sent from my SGH-I747 using xda premium

try sandisk SDXC 64gb - ppl report good results with it.
Also - reflash stock ROM with nontrip root method.

did you try guiformat?

I will try this program next thanks guys
Sent from my SGH-I747 using xda premium

MicroSD card losing connection with phone = MTP issues on JB 4.1.1 official release

Every time I flash anything based on the official JB 4.1.1 release, my 32GB MicroSD card (Patriot brand?) freaks out. The phone will say it's "unexpectedly removed" and then adds it back in, and removes it, over and over.
It's happened on all three JB 4.1.1 ROM's I've tried.
I thought my MicroSD was going bad so I low-level formatted it in Windows (hated doing this) and still had trouble. But ONLY with the card in the phone. Windows usually liked the card just fine.
So what I did to resolve it was use Titanium Backup Pro to "freeze" the "MTP Application". After doing that, my MicroSD works great in the phone and AFAIK, I haven't lost any functionality. So I'm not sure what the "MTP Application" is or does, but so far.... so good.
This post is just a heads up to others, in case anyone else runs into this problem.
Or in case anyone wants to tell me WTF is wrong.

Ive had this issue as well twice. Both times I had to format the sd card in my pc and it will work fine for a while. Im curious to know if you are using es file explorer? Im thinking it might have something to do with this issue.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

garydv2002 said:
Im curious to know if you are using es file explorer?
Click to expand...
Click to collapse
Nope. Never.
Root Explorer + TWRP (if that matters).

CZ Eddie said:
Nope. Never.
Root Explorer + TWRP (if that matters).
Click to expand...
Click to collapse
Hmm come to think of it I just recently purchased root explorer about the time all this started but surely an app couldn't cause this issue? Heck I dont know it happens so random it hard to pinpoint the problem thats causing it. If I figure it out I will let you know
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Ive been trying to duplicate the problem all day with no success. However I have froze the MTP app so maybe thats what the cause is? Would you happen to be using a sandisk micro sd? Because I am..
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Ahh hah I duplicated the problem on my phone anyway. I used the my file app to move a rather large file from the internal sd to my external sd and afterwards it lost connection. I had to remove the sd card and install it several times to get it to mount back again. Im not sure if its the moving of the file or the my files app itself that is doing it. I also noticed the media scanner isnt running after moving the file. So I hadnt pinpointed the exact cause but im dang sure getting closer. And I dont think its a bad sd card because I tried another and it did it with it too
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

You were able to duplicate it even with MTP frozen?
Wow, I have yet to recreate the issue with MTP frozen.
My SD is a Patriot brand. Purchased at Fry's Electronics.

CZ Eddie said:
You were able to duplicate it even with MTP frozen?
Wow, I have yet to recreate the issue with MTP frozen.
My SD is a Patriot brand. Purchased at Fry's Electronics.
Click to expand...
Click to collapse
Yea it happened with MTP frozen and unfrozen. Ive tried freezing the my files app and every file explorer on my phone. I just cant put my finger on the cause it happens so random. But it seems me and you are the only ones having this issue so im wondering if we didnt get a bad flash when we updated. When I updated via kies it did not do a full wipe update it did what is known as a dirty flash which I never do because you end up with issues like this. So if we continue to ask each other questions we will eventually figure out what the common link as far as if its an app we are using and things like that.
So did you update via kies or odin?
If you updated via odin where did you get your firmware file file from and if you used odin was it odin on the pc or mobile odin?
And was your update a full or a dirty flash?
We are gonna figure this thing out one day lol.....
Edit.... well apparently we are not the only ones having this issue. Over on droid forums there are several s3'owners most on t mobile but anyway it appears there are a few phones out there with this problem and the only fix is to replace the phone and sd card because the phone ruins the card by unmounting it without stopping it first. My phone is still under warranty so I will be calling ATT tomorrow for them to replace my phone and throw a fit for them to replace my micro sd. I paid 48 bucks for this card and I think ATT should replace it since their faulty phone ruined the card
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Wow.
I had the problem with two or three different ROM flashes. So it wasn't just one ROM flash.
Each time, freezing MTP Application has resolved the issue for me.
I'm going on ~4 days now with my current ROM and no more issues since freezing MTP.
Maybe there are a couple different SD card related issues out there.

I had the same problem with ADATA and Kingston brand sd cards. I tried the Sandisk 8GB from my old phone and no problems so far.

Freezing the mtp app has seemed to slow it down. The only problem with freezing mtp is that is how the phone mounts to the pc. Mine just did it again but I unfroze mtp to hook my phone to the pc and right after I backed some stuff up and unplugged it, before I could freeze mtp again it unmounted the card. Ive also tried several different sd cards and several different sizes even tried a 2gb Samsung card with the same results. Im thinking hard about going back to ics to see if that will resolve the issue. ...
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

I found that my 64GB card was not recognized by the newer kernels - when I use the older kernels or stock, it is recognized, otherwise, the ROM attempts to read the card, and then states it is 'ready to be removed'.

alisiena said:
I found that my 64GB card was not recognized by the newer kernels - when I use the older kernels or stock, it is recognized, otherwise, the ROM attempts to read the card, and then states it is 'ready to be removed'.
Click to expand...
Click to collapse
Try reformatting the 64gb card to a fat 32 file system. 64gb cards come formatted exfat and some s3's have had trouble reading them. Put it in a pc into the card reader and open my computer. Then right click on the drive thats showing your card. Ex drive E or F. Mine is drive N. Once you right click on it click format and a box will pop up and you will see the box that says exfat. Click the drop down box and change it to fat32 then click format and your done. Once it finishes put it in your phone and it should recognize it...
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

garydv2002 said:
Well my 64gb micro sd came today from Amazon and from what ive read on xda and the net I would need to change the file system from exfat to fat32. So I put it in the pc pull up mini tools partition wizard and it gives me no option to format it, I try windows no option for fat32 only ntfs or exfat so I try a couple of others with the same results. Then I try hp format tool and finally format it to fat32 then put it in my phone and it says its damaged and needs formatting so I do and put it back in the pc and im back to exfat. So it seems to only work in my phone in the exfat format soooo im just gonna leave it alone. Oh I even tried formatting it in command prompt and changing the file format and it fails so now im starting to wonder if thats what happened to my old 32gb card and why I suddenly starting having trouble out of it when I updated to jb is because it was fat32. Maybe this new jb dont handle fat32 well or maybe my s3 dont like fat32. Hell I guess its just a mystery. ....
So I would suggest if your having sd issues try formatting your card to exfat and see if that helps the connection issues
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[Q] extSDCard problems

I am having problems with my external SD card. It is a 32GB Sandisk card. I can create directories under /extSDCard and copy files to those directories. However if I reboot my phone all of the directories and files are gone. I went to setting/storage and select the external sdcard. The system tells me it is blank. I see in the notifications something about a blank sd card and something about unsupported files. I then tap that and it gives me the option to format it which I select. When I do that it immediately reboots and I am in the same boat as before I started. Basically I have an unusable SD Card. This card used to work but some time ago I accidentally formatted it in TWRP and sort quit using it for a while until today. Does anyone have any idea what is going on? I am running AOKP if it makes any difference.

Might have a bad SD card on your hands. But you didn't mention trying to format it on a PC instead of the phone. Then try transferring some stuff over to it again too see it it's ok. Just use the pc to drop a few files on it b4 placing it back in the phone...
If no quirky then possible dead sd. What size? Anything under 64 very inexpensive to replace on Amazon.com
Just my 2¢®™
Sent from my SAMSUNG-SGH-I317 using Tapatalk

Bajanman said:
Might have a bad SD card on your hands. But you didn't mention trying to format it on a PC instead of the phone. Then try transferring some stuff over to it again too see it it's ok. Just use the pc to drop a few files on it b4 placing it back in the phone...
If no quirky then possible dead sd. What size? Anything under 64 very inexpensive to replace on Amazon.com
Just my 2¢®™
Sent from my SAMSUNG-SGH-I317 using Tapatalk
Click to expand...
Click to collapse
Thanks you Bajanman I will try to format it with a PC. I can't imagine that the thing shouldn't still work. At one time I had 20GB of music, movies, etc copied to it before I mistakenly formatted it while in TWRP.
~metafizik

metafizik said:
Thanks you Bajanman I will try to format it with a PC. I can't imagine that the thing shouldn't still work. At one time I had 20GB of music, movies, etc copied to it before I mistakenly formatted it while in TWRP.
~metafizik
Click to expand...
Click to collapse
Ok Lmk if it works out for you...[emoji41]
Sent from my SAMSUNG-SGH-I317 using Tapatalk

Bajanman said:
Ok Lmk if it works out for you...[emoji41]
Sent from my SAMSUNG-SGH-I317 using Tapatalk
Click to expand...
Click to collapse
Unfortunately I think the card is damaged. I formatted it on a PC and put it back in my phone and still see the same behavior. I then put it in another phone and although the format went as one would expect that phone reports the card as damaged.

Sandisk cards have issues with the Note 2. My Sandisk card went crazy after being in my Note 2. I just bought a Samsung card and haven't had issues at all.

tube517 said:
Sandisk cards have issues with the Note 2. My Sandisk card went crazy after being in my Note 2. I just bought a Samsung card and haven't had issues at all.
Click to expand...
Click to collapse
Yes I just found out the card does work. It was actually a 64GB card. I put it in my tablet and it worked fine so I took the exact same model of Sandisk card that was in the tablet and put it in the Note 2 and I see the exact same behavior as the other card(blank sd and reboots if I try to format).
The card worked before I installed AOKP on the phone. I wonder if it is AOKP or the Note 2? This weekend I guess I will restore the backup I took before I installed AOKP to find out.

metafizik said:
Yes I just found out the card does work. It was actually a 64GB card. I put it in my tablet and it worked fine so I took the exact same model of Sandisk card that was in the tablet and put it in the Note 2 and I see the exact same behavior as the other card(blank sd and reboots if I try to format).
The card worked before I installed AOKP on the phone. I wonder if it is AOKP or the Note 2? This weekend I guess I will restore the backup I took before I installed AOKP to find out.
Click to expand...
Click to collapse
Good luck!
I just put that Sandisk card that freaked out in my Note 2, in my Note 1 and it works fine. I think it's the Note 2. If you google the issue, you'll see a whole bunch of forum posts here and other forums talking about it.

tube517 said:
Good luck!
I just put that Sandisk card that freaked out in my Note 2, in my Note 1 and it works fine. I think it's the Note 2. If you google the issue, you'll see a whole bunch of forum posts here and other forums talking about it.
Click to expand...
Click to collapse
I took your advice and ordered a Samsung card. I really don't want to restore back to stock and get the KNOX update so I will stick with AOKP. I agree I don't think AOKP is the problem.

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.

Please need help, SD card

I need some serious help. I have been trying to get this fixed for the better part of a year now and I give up. I can't access my SD card, by any means.
I can't download an app with rooted premission
I can't wipe from ANY recovery
I can't take it out and wipe on another device
I can't wipe it from my computer
I can't do ANYTHING to it, i can't even delete files off of it.
My 64gb sd card is rendered worthless, it's driving me insane. Can somebody please help me before I rip my hair out?

sounds like your sd card is write protected....or its gone bad....check your sd manufaturer to see how to disable write protection....try that first....if you can install another card and see if you can add, delete, or modify files on that card....next insert card in question into your pc and see if you can do the same on it...if not you may just have a bad sd card
Sent from my SM-N910P using Tapatalk

It's not a bad SD card. I had a android version on it and then when you install the new one, it ****ing puts your SD card on lock down.
Nothing can access it and the files on it before I installed the new android version work, I just cant put anything on it or take anything off.

ok...so you need to share previous andriod version...new version...how you took the update ota or flash....build version....kernel etc. Each rom has its own little quirks and requirements and you have not given any info for others to see what may be going on...what I'm hearing is that your sd worked before you took the update but does now work after the update...
Sent from my SM-N910P using Tapatalk

I am pretty sure I just updated from stock to cyanogen

gonna have to be alot more specific....we can't read your phone...without the details no one can begin to help you
Sent from my SM-N910P using Tapatalk

No matter what I put it, there is no write protection switch. It just keeps saying I need to turn it off or it's write protected.
I removed it from my phone, put it in a microSD card converter to SD. It is directly in my slot in a laptop. I downloaded programs to try to overwrite this and it still says write protected.

just a quick interjection...sd card write proection has been an issue for some time....especially sandisk cards....I had the same problem...could read not write...could not delete move or change any files on the card...all it said was write protected though I had never enabled this....bought a new card...copied the files from old card to pc (the only thing I could do with the card)...dumped those files onto the new card and reinserted....everything has worked fine since with no problems whatever. I will say that I did not buy another sandisk card.
Sent from my SM-N910P using Tapatalk

Mine is a samsung..
The situation is just ****ty.. the files on it work but some of them are corrupt and **** everything up. I cant listen to music because every other song crashes my phone and it has to reboot.
Just spent 60$ on a sd card for nothing

well its out here now and someone has your answer
Sent from my SM-N910P using Tapatalk

gdempsey1 said:
well its out here now and someone has your answer
Sent from my SM-N910P using Tapatalk
Click to expand...
Click to collapse
I hope. I've been working this for a long time intermittently . Just give up every time after a few hours.

You could try this app to check the card. There are plenty of counterfeit sd cards out there.
http://www.humanlogic.com/sdinsight/
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