Develop Bugs

Problems Formatting SD Card/Working In Phone

I seem to be having problems formatting my Sandisk 64GB MicroSDXC (Class 10) card in FAT32 & having it work in my AT&T Galaxy S3. The card comes preformatted in exFAT, and it works in the phone just fine that way. But, I heard it's best to format it in FAT32 due to some issues I saw about some people having some of their music files not show-up (if they have a rather large music collection, which I do - 85GB's worth!) in whatever music playing program they're using, so I'm attempting to format it with FAT32 to avoid that. Now, Windows 7 (x64) does NOT allow you to format drives via FAT32 (unless you go into DOS), so I've used a couple of different programs (Fast32Format, EASEUS PartiionMaster); I got a message on my Galaxy S3 saying my SD card was damaged or missing when I used Fast32Format); a bunch of services stopped working on the phone when I formatted it using EASEUS PartionMagic, and I even tried formatting it in NTFS (which I think that Android doesn't support) & got a message my SD card was blank and Android wouldn't even mount it!
What am I doing wrong? How can I format it in FAT32 and have it work in my Galaxy S3?!! Do I even really need to use FAT32 instead of exFAT?
Thanks,
Dennis

dmw_4814 said:
I seem to be having problems formatting my Sandisk 64GB MicroSDXC (Class 10) card in FAT32 & having it work in my AT&T Galaxy S3. The card comes preformatted in exFAT, and it works in the phone just fine that way. But, I heard it's best to format it in FAT32 due to some issues I saw about some people having some of their music files not show-up (if they have a rather large music collection, which I do - 85GB's worth!) in whatever music playing program they're using, so I'm attempting to format it with FAT32 to avoid that. Now, Windows 7 (x64) does NOT allow you to format drives via FAT32 (unless you go into DOS), so I've used a couple of different programs (Fast32Format, EASEUS PartiionMaster); I got a message on my Galaxy S3 saying my SD card was damaged or missing when I used Fast32Format); a bunch of services stopped working on the phone when I formatted it using EASEUS PartionMagic, and I even tried formatting it in NTFS (which I think that Android doesn't support) & got a message my SD card was blank and Android wouldn't even mount it!
What am I doing wrong? How can I format it in FAT32 and have it work in my Galaxy S3?!! Do I even really need to use FAT32 instead of exFAT?
Thanks,
Dennis
Click to expand...
Click to collapse
EaseUS worked fine for me - the one thing that screwed me up the first time is when you tell it to format it, you also have to tell it to apply it. And hopefully the "Fast32" was autocorrect - you should just be using FAT32 - and I don't think I changed the block size. HTH

alacrify said:
EaseUS worked fine for me - the one thing that screwed me up the first time is when you tell it to format it, you also have to tell it to apply it. And hopefully the "Fast32" was autocorrect - you should just be using FAT32 - and I don't think I changed the block size. HTH
Click to expand...
Click to collapse
I apologize for bringing up this old-ish thread, but I always see that every time someone makes a new thread, they get bombarded with "use the search feature", so uhh, I did .
I've got a Class 10 SanDisk Ultra 64GB MicroSD XC card, that refuses to work with my Galaxy S3. I've got CM10 on it, do you think that might be the issue? If so, how do you think I can rectify it (what format would work?)
I've used EaseUS to delete the partition, and recreate using FAT32, but no dice, still getting a "damaged card" notification. I can seemingly use the card fine on my PC and my Mac, but nothing on the phone.
Any help would be greatly greatly appreciated

Vaesar said:
I apologize for bringing up this old-ish thread, but I always see that every time someone makes a new thread, they get bombarded with "use the search feature", so uhh, I did .
I've got a Class 10 SanDisk Ultra 64GB MicroSD XC card, that refuses to work with my Galaxy S3. I've got CM10 on it, do you think that might be the issue? If so, how do you think I can rectify it (what format would work?)
I've used EaseUS to delete the partition, and recreate using FAT32, but no dice, still getting a "damaged card" notification. I can seemingly use the card fine on my PC and my Mac, but nothing on the phone.
Any help would be greatly greatly appreciated
Click to expand...
Click to collapse
Well, this is ominous given that I ordered this micoSD and it just shipped. I read lots of reviews on Amazon and those with S3 phones seemed to have no issues using card as is, although they didn't specify precisely which version of S3 they had. The S3 natively supports 64 GB, so I would think it would work out of the box, so to speak. A number of reviewers said they used this microSD in older phones that supposedly supported only up to 32 GB. They formatted in phone, getting something like 59 GB of usable space.
I'm using stock ROM with CWM on I747.

cm10
it is an cm10 issue

mrky said:
it is an cm10 issue
Click to expand...
Click to collapse
A more complete response...its a known issue with AOSP based JB ROM's. This is pulled from the AOKP FAQ, since it is an AOSP based ROM as well this should help you out.
Will my 64 gb sd card work? Except it works fine with a 64GB card. http://rootzwiki.com/topic/28124-doe...card-standard/ The SGSIII is the first phone to support exfatl, but the support is Kernel based, some people are having trouble with the replacement kernels and exfat support. The solution is to force it to format in FAT32. http://www.online-tech-tips.com/comp...ive-to-fat-32/ I know, because I've done it. --- Don't respond without actually doing research. I have no problem spoon feeding information, especially when the information you put out there can increase misinformation. The SGSII also supports a 64GB card as well. http://androidforums.com/samsung-gal...ing-sgsii.html naturefreak85l;
EDIT - Apparently the links are dead, but there a many methods to choose from to format and SD in FAT32.

damaged SD?

can a sd card be damaged if its not removed while you gain root or cwm or flash a rom? i have a sandisk 64gb class 10 that use to work fine before i flashed my S3. After i flashed freeSG3 my sdcard wouldn't mount, keeps saying sd unexpectedly removed. it came preformatted as exFAT and worked fine on the stock tw rom. i stuck in my computer and it said it needed formatted so i reformatted as exFAT and copied a couple files to it. soooo.. im assuming it isn't damaged since it works in my computer. still no luck getting it work on my phone though. I tried my other sd's to see if it was the rom maybe but they work just fine, its only this card. im confused to why it isnt working now, but use to work but still works on my computer. ive only had it for a couple weeks and luckly i got it off of amazon so i can still return it. i've tried rebooting my S3, i even tried to mount in it my vibrant after i reformatted even though i know the vibrant doesnt suppport 64 gb.. it said damaged sdcard. ill give it a few more days of research before i send it in for a new one, im hoping i can get it to work again. my other option i was thinking about doing was to restore my phone back to stock to see it would work again. i dont really want to do that but i think i will for the hell of it before i try returning it.

Your SDCard is not damage, as I've mention in your other thread you are probably running a custom kernel that doesn't support exFat.
Either reformat your card as FAT32 or NTFS or flash back to stock kernel that does support exFat.
exFAT is a proprietary Microsoft product. They don't release licensing to open source software like Android. Apparently Samsung as some kind of licensing deal with Microsoft to use exFAT that's why the stock kernel will work with newer SDCARD formatted as exFAT.

I am going to piggy back on this thread and say that I have the "unexpectedly removed" bug
S3 running stock 4.0.4 - it works fine with a 2gb microsd, but I just bought a 32gb micro sdhc class 10 and it just won't read.
Tried exFAT, Fat32 - NTFS doesn't read on the card.
Suggestions?

darkphantom said:
I am going to piggy back on this thread and say that I have the "unexpectedly removed" bug
S3 running stock 4.0.4 - it works fine with a 2gb microsd, but I just bought a 32gb micro sdhc class 10 and it just won't read.
Tried exFAT, Fat32 - NTFS doesn't read on the card.
Suggestions?
Click to expand...
Click to collapse
I was using 32gb card earlier on Stock Rom-unrooted, rooted, RcMix and Xquisit roms without any issue. I know you would have tried but have to ask, did you try copying any data onto the card on a PC? May be some bad sectors are causing it to not recognize.
Can you tell me if CWM or TWRP recognize the card?
I don't have any issues with all my cards - 16gb, 32gb and 64gb ultra sdxc.

I've been putting off rooting it since I was content with the factory rom, but I guess I have no choice. I'll check CWM after I root it.
However, I can't copy any data onto it. Also, the phone recognizes the card but it keeps unmounting/remounting it.

how can I tell if CWM sees the card? Even after root, the phone sees the card, just can't copy anything to it.

Did anyone ever have a fix for the "unexpectedly removed".
Had the problem before. Reformatted sdcard and odin back to stock then flashed cm10 with no problems.
Recently went back to TWFrosty, and the problem exists again. Could it be from going back and forth between TW and Aosp?
My card is fairly new, about 2 mths? Maybe 3.. Weird error, it shows my external sd card blank, then all of the sudden if I leave it be all my files will show back up. Also it has went so far to ask me to reformat the card with my phone. I just avoid the answer, and eventually all my files come back. When I'm near a computer and it does this, I'm able to still see all of the files on the external sdcard on my PC, just not on my phone.
Thanks for all the help..
Billy G.

Sounds like you need to backup then reformat the card. You didn't say what kind/size it is or what format. That can help.
Sent from my SGH-T999 using xda premium

Sandisk/32gb/fat32
Sent from my SGH-T999 using xda premium

Well I've got same problem with my 32 SanDisk. Sometimes it's shown on my computer and my phone and tablet, but for the most part its just not showing at all. IdK what the hell is wrong with the thing. I have another one just like that one, and so far (knock on wood) no problems, so my hardware is ok........

juanflight said:
Well I've got same problem with my 32 SanDisk. Sometimes it's shown on my computer and my phone and tablet, but for the most part its just not showing at all. IdK what the hell is wrong with the thing. I have another one just like that one, and so far (knock on wood) no problems, so my hardware is ok........
Click to expand...
Click to collapse
Crazy. Let me know how it goes.. aosp is working for me for now. We shall see..
Sent from my SGH-T999 using xda premium

For large (32/64GB) cards, if you're going to use an AOSP ROM, you have to format to FAT32 (or ext3/4). TW based roms will format to exFAT if you format it inside the phone. The drivers for exFAT aren't included in AOSP though.

S4 Won't read Sd card

I am stumped! I got a Sandisk 64gb sd card for this. Naturally, it came formatted as exfat. From stock through 3 different CM based ROMs, I can't get this S4 to read the SD card. I even downloaded a partition manager to format it to Fat32. I also wiped it and let the phone format it. Even after that it would read it. I know CM now supports exFat format. I even flashed separately the script from the original thread. In any case my laptop has no problem with the sd card. Any help appreciated.

I have a Patriot 32 gb class 10 that was working fine until s couple of days ago. Then the phone said sd card unexpectedly removed. Pulled battery and card nothing. Did a format still nothing put that card in my Asus transformer tablet. read just fine took the card thatvi had in my tablet without formatting it put it in my s4 and it read it. this is my 4th galaxy device they should have figured this out by now. Any suggestions.
Sent from my SGH-M919 using xda premium

same happened with my 32gb on my note2 and now in my gs4
tapatalk on android

The sudden unmounting and/or sd card not being recognized by the S4 and other devices as mentioned is a known issue that is usually SD card related. Sometimes it's just a matter of reformatting your card to Fat32 if your ROM cannot read exFAT cards.
But if that's not your issue or you already reformatted your card to the appropriate format, the SD card has failed and warranty/replacement is suggested.
Can happen to SanDisk cards in addition to other manufacturers.
You may hear this issue being associated to SanDisk cards if only because they are probably the most counterfeited card out in the market. But the issue can occur to non counterfeit cards also.
To reduce your chances of having theses issues happen, always get your cards from reputable sources, in blister original packaging, etc. And if the price looks too good to be true, it most likely is. Even if you take the above precautions, you can still have issues.
Always back up your data for that 'Just in case moment' in case stuff happens.
Purchasing a card whose Manufacturer and/or Seller has an excellent return/exchange policy is a plus.
Having a spare SD card available can help you troubleshoot what your issue may be regarding a defective card, formatting issue, device issue, etc.

You may want to take a look at this thread, as it may help you out:
http://forum.xda-developers.com/showthread.php?t=2041679

I started to reply to you but my laptop crashed. Seems this s4 just doesn't like that 64gb sandisk. I had an 8gb card laying around and that worked like a charm. The sandisk was foramted exfat out of the box. I formated fat32 and didn't work. I wiped it and left it without format. Put in the phone to let it format the card. It did--fat32 and then still wouldn't read it or even mount it.
I sure don't have anything to lose by trying a different program to format that card. It could come in handy even if I don't use it in the phone. A camera comes to mind.
Oh yeah, it was easeUS that I used to format the card in the first place. Try something else.
Sent from my SGH-M919 using xda app-developers app

Bowmanspeer said:
I started to reply to you but my laptop crashed. Seems this s4 just doesn't like that 64gb sandisk. I had an 8gb card laying around and that worked like a charm. The sandisk was foramted exfat out of the box. I formated fat32 and didn't work. I wiped it and left it without format. Put in the phone to let it format the card. It did--fat32 and then still wouldn't read it or even mount it.
I sure don't have anything to lose by trying a different program to format that card. It could come in handy even if I don't use it in the phone. A camera comes to mind.
Oh yeah, it was easeUS that I used to format the card in the first place. Try something else.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Hmmm...
There have been issues with the 64gb SanDisk cards being read by the S4 as well as other devices as described in my previous post, the Ultra cards from what I've read (red & grey) I have the save card, class 10, running without issue on my previous S3 and current S4.
You may want to try the format link above.
You can always purchase another 64GB card on Amazon with a Seller with many, excellent reviews, and go from there, and return what you have to return

Right. That's the very card I have. Thanks for the help.
Sent from my SGH-M919 using xda app-developers app

Bowmanspeer said:
Right. That's the very card I have. Thanks for the help.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Anytime.
Let me know how it goes

This happen to me but with my galaxy s3...turned out sd card was corrupted. Good news was Patriot replaced it with a new one....

If the SD card didn't work in other devices I would seek to exchange it. There are other things I can use it in. I just ordered a 32 GB G skill on new egg. That should do it. The other thing I tried on this sandisk is partition it to 2 smaller ones less than 30 GB each formatted to fat32. Finally it recognized one of those partitions. When I get the other card I'll swap them.
Sent from my SGH-M919 using xda app-developers app

I had the same problem as you OP. I've also downloaded programs to change the format type and stuff, but nothing worked, but I fixed it in a weird way.
My 64gb card didn't work on my samsung. I used many programs to format the card to get it to work, but nothing. What fixed it was....
I took that card and placed it inside my old smartphone (LG G2X). Once placed inside, a pop-up promoted me saying my card was damaged and it will try to fix it. I've tried this on my samsung and it didn't fix it, but once I tried it on this old smartphone, the card for fixed and started to work on my samsung.
I don't know if this could help you, but that's how I fixed my problem.

Format the card to Fat32.
Sent from Spaceball One.

blackknightavalon said:
Format the card to Fat32.
Sent from Spaceball One.
Click to expand...
Click to collapse
I had tried that already when the device initially wouldn't read the sd card. When I partitioned the card in FAT32 then the device picked it up, but only one partition of 29GB.

Bowmanspeer said:
I had tried that already when the device initially wouldn't read the sd card. When I partitioned the card in FAT32 then the device picked it up, but only one partition of 29GB.
Click to expand...
Click to collapse
I don't know what your problem is, then. My 64GB Sandisk card works perfectly in my Galaxy 4.

I don't know what me problem is either. When I have the time I going to return to stock and start over. TWRP won't backup onto the SD card either. Wondering if its behaving this way because I rooted the phone before putting SD card in. Though I have done complete wipe (including internal memory) prior to installing current ROM.
Sent from my SGH-M919 using xda app-developers app

Galaxy S4
Bowmanspeer said:
I started to reply to you but my laptop crashed. Seems this s4 just doesn't like that 64gb sandisk. I had an 8gb card laying around and that worked like a charm. The sandisk was foramted exfat out of the box. I formated fat32 and didn't work. I wiped it and left it without format. Put in the phone to let it format the card. It did--fat32 and then still wouldn't read it or even mount it.
I sure don't have anything to lose by trying a different program to format that card. It could come in handy even if I don't use it in the phone. A camera comes to mind.
Oh yeah, it was easeUS that I used to format the card in the first place. Try something else.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
I have a SanDisk 64gb micro SD card in my S4, and had it ever since I got the phone about 1.5 years ago. now I am getting the issues you all are getting. I have NOT updated to a new firmware version. and I just backed up and reformatted the card. Very frustrating when all your apps disappear. come to find out they are all being stored on the SD card witch is now not responding... I will try a differect card. I wish they would just leave the phone a lot and stop doing so many updates.. they update one thing it screws up another. Ever since the first update my "Drive" app don't work, and they have no clue why.. not even Samsung knows...
oh well
Laurap6286

Laurap6286 said:
I have a SanDisk 64gb micro SD card in my S4, and had it ever since I got the phone about 1.5 years ago. now I am getting the issues you all are getting. I have NOT updated to a new firmware version. and I just backed up and reformatted the card. Very frustrating when all your apps disappear. come to find out they are all being stored on the SD card witch is now not responding... I will try a differect card. I wish they would just leave the phone a lot and stop doing so many updates.. they update one thing it screws up another. Ever since the first update my "Drive" app don't work, and they have no clue why.. not even Samsung knows...
oh well
Laurap6286
Click to expand...
Click to collapse
Just curious as to how you got an S4, 1.5 years ago? :cyclops:

Odd SD Card Response
I have recently upgraded from a ATT Samsung Express (Tracfone) moving my 32GB SD Card into the brand new Galaxy S4 I Knoxed up right out of the box just as a matter of principle. I saferooted the phone and installed TWRP which for some reason refuses to load after a few succesful tries and a backup of my system and restore thern reload of TWRP. My concern in this question (unless some knight in shining armour can make sense of my TWRP issue) is that I am not able to write to the samsung branded SD card I removed from the old phone. I cannot create a ROM directory on it when the phone is connected to the PC, nor can I copy files to it. I had hoped to preserve the photos on the card and suppose I can break down and buy an adapter so it will connect to my PC but the point is it "should" work,, no? I cannot create a directory when the phone is connected to the PC nor can I in ES file Explorer. I've also tried to create a directory in root witth ES and am getting the same error. I just want to get the silly balloons off m screen and get google play to run. I am succesfully rooted. I've tried to reload TWRP with Odin only to get the small print int he uper right hand of the screen then no further. I am able to restore my backups thank God.
This is making me batty on a three step process. The card is my main concern right now as I can't load the ROM to it once I get TWRP figured out. Thanks in advance for all the great help I always get. The better I get the more I'll contribute....I promise.
's

I'm having the same problem. We are not alone, there are numerous threads in the other S4 forums, like this one http://forum.xda-developers.com/showthread.php?t=2281813&page=14

[Q] MicroSD Question/issue

I have the Tab pro 12.2 KK4.4.2 and purchased a patriot Micro SDXC 64 GB. My question is similar to other posts and I will try the posted solutions when someone can confirm the validity of the SDcard. Samsung specs for the Tab(SM-T900) state support for micro SDHC up to 64 GB. All of the reading I have done shows that the largest SDHC cards is 32GB and anything larger is a SDXC. So is my64GB SDXC card actually supported in my device? I have not been able to write MP3 files from my PC to the card or any other files with any success. Put I am able to do it fine on a smaller 16GB SDHC card. Can this version SM-T900ZKAXAC be rooted?
Thanks

Mossey said:
I have the Tab pro 12.2 KK4.4.2 and purchased a patriot Micro SDXC 64 GB. My question is similar to other posts and I will try the posted solutions when someone can confirm the validity of the SDcard. Samsung specs for the Tab(SM-T900) state support for micro SDHC up to 64 GB. All of the reading I have done shows that the largest SDHC cards is 32GB and anything larger is a SDXC. So is my64GB SDXC card actually supported in my device? I have not been able to write MP3 files from my PC to the card or any other files with any success. Put I am able to do it fine on a smaller 16GB SDHC card. Can this version SM-T900ZKAXAC be rooted?
Thanks
Click to expand...
Click to collapse
I contacted Samsung and they are going to escalate the issue up the chain. It seems as though the tablet only supports Fat32 file system, while SDXC cards are only can only be formatted using exFat or NTFS. That being said I tried formatting my card with NTFS in hopes it might allow Fat32 after but it wouldn't format using NTFS.
Is no one else having this issue, as I have not seen 1 other post regarding this particular problem?

Mossey said:
I contacted Samsung and they are going to escalate the issue up the chain. It seems as though the tablet only supports Fat32 file system, while SDXC cards are only can only be formatted using exFat or NTFS. That being said I tried formatting my card with NTFS in hopes it might allow Fat32 after but it wouldn't format using NTFS.
Is no one else having this issue, as I have not seen 1 other post regarding this particular problem?
Click to expand...
Click to collapse
Mossey, do you happen to have a Windows computer?
plug the sd into a different phone if you can and connect as external. Click Start->My computer->right click and format to Fat32. I do this all the time
Silkmeister1

Silkmeister1 said:
Mossey, do you happen to have a Windows computer?
plug the sd into a different phone if you can and connect as external. Click Start->My computer->right click and format to Fat32. I do this all the time
Silkmeister1
Click to expand...
Click to collapse
I thought for second you had the solution. I have another tablet and tried reformatting using it. I had the stick showing fat32 file system but it was 32gb vs 64gb. But the tablet recognized it initially, so l reformatted using the tab, but now the tablet looses the sd after it writes a few files to sd. Then if I try to view files on the tab, I get a message that the ext sd card may not be readable.

Mossey said:
I thought for second you had the solution. I have another tablet and tried reformatting using it. I had the stick showing fat32 file system but it was 32gb vs 64gb. But the tablet recognized it initially, so l reformatted using the tab, but now the tablet looses the sd after it writes a few files to sd. Then if I try to view files on the tab, I get a message that the ext sd card may not be readable.
Click to expand...
Click to collapse
Hm interesting, it seems like it might be a permissions issue.
Can you try doing this on a device that runs something before 4.4.2? Kitkat is known to cause lots of problems with SDcards
hope you find the solution.
Silkmeister

Silkmeister1 said:
Hm interesting, it seems like it might be a permissions issue.
Can you try doing this on a device that runs something before 4.4.2? Kitkat is known to cause lots of problems with SDcards
hope you find the solution.
Silkmeister
Click to expand...
Click to collapse
Again- Thanks. I thought it odd as well and it didn't add up. Although the SD card was working OK in my new Sony camera I decided to return it to C.C. for an exchange, voila problem solved. This still tells me that Samsung Technical support is useless. Everyone spent a lot of time trying to solve this issue. I still am finding odd things happening with Kies but I have found some work a rounds.

Asking for help with a micro sdxc 128gb problem

Hello this is the first time I'm posting here
I'm sorry if this has been asked before but I couldn't find any answer other than "xiaomi didn't fix it"
I bought a sandisk 128gb microsdxc after double checking that it could handle this amount (It's listed a having a max of 256gb) I tried it on my pc and it was golden until I tried to use it on my phone, it shows up and says it is a 128gb sd and lets me use it as a internal or external memory but that's about it, it can't read or write on it and my pc can't detect it when it is on my phone
I also noticed that it doesn't let me take screenshots without my other 16gb sdcard, it says there's not enough space for it even though I've just used 18gb and clearly have enough space
I'm curious if there's a fix like changing to a custom rom, flashing certain file or something like that
Thank you!
Edit: If I use it as external it lets me write and read but it doesn't work as I want it to, also if it's as external it doesn't let me take screenshots as I stated above

I advise trying other brands than Sandisk, if problems persists. There are some problems when using Sandisk SD Cards like sudden read-only SD card. I've tested other cards (Eaget, G.Skill, Gigastone, Samsung, Transcend) and they were better to me.
Also, SD cards should formatted to FAT32 if using it with this device, as Xiaomi did not implement exFAT support for this device. You can search how to format huge cards to FAT32 on Google.
Also, check if your card is genuine. If your card has huge CE stencil on the back, it is fake. Sandisk shouldn't have that mark; it should have serial number and Made In China/Taiwan on it.

RFD80M-75679 said:
I advise trying other brands than Sandisk, if problems persists. There are some problems when using Sandisk SD Cards like sudden read-only SD card. I've tested other cards (Eaget, G.Skill, Gigastone, Samsung, Transcend) and they were better to me.
Also, SD cards should formatted to FAT32 if using it with this device, as Xiaomi did not implement exFAT support for this device. You can search how to format huge cards to FAT32 on Google.
Also, check if your card is genuine. If your card has huge CE stencil on the back, it is fake. Sandisk shouldn't have that mark; it should have serial number and Made In China/Taiwan on it.
Click to expand...
Click to collapse
I formatted it to fat32 and still no luck, it works with any device except my xiaomi so that's weird, I checked the back and it's genuine btw, I guess I'll just use it on my camera or as a usb, thank you anyways

Sorry bro but Xiaomi didn't fix it lol. I've had this issue constantly on Pie, but it worked OK in Oreo, maybe you downgrade or try another ROM?

same 4 me

marstonpear said:
Sorry bro but Xiaomi didn't fix it lol. I've had this issue constantly on Pie, but it worked OK in Oreo, maybe you downgrade or try another ROM?
Click to expand...
Click to collapse
Yeah, I agree. I have 2 MicroSD cards that being destroyed by Xiaomi stock ROM simply by self-ejecting itself numerous times, and also it lagged a lot because it always check for 'corruption' where their firmware causes it.
The simple solution that I took is to get a custom ROM and kernel installed on my device and since then, these MicroSD card problems were gone; hell even better that custom ROM / kernel can handle exFAT than that of Xiaomi AndroidOne.