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[Q] Can' Find Micro SD card on Xoom HC3.1 rooted - RESOLVED

I've flashed the HC 3.1 using CWM
I've flashed the Wifi_RootTool_3.1.zip
But somehow can't find the sdcard - slashmntslashsdcard still points to the internal memory.
Xoom Setting - Storage setting still only shows "Internal storage"
My setup is : android version 3.1
Kernel version 2.6.36.3-gc2bee64 android build atapa23
Build number HMJ37
Xoom model : Wifi
anybody can help ?
HJ

hjfritz said:
I've flashed the HC 3.1 using CWM
I've flashed the Wifi_RootTool_3.1.zip
But somehow can't find the sdcard - slashmntslashsdcard still points to the internal memory.
Xoom Setting - Storage setting still only shows "Internal storage"
My setup is : android version 3.1
Kernel version 2.6.36.3-gc2bee64 android build atapa23
Build number HMJ37
Xoom model : Wifi
anybody can help ?
HJ
Click to expand...
Click to collapse
Rooting and/or updating to 3.1 does NOT get you a working SD card.
You will have to install a kernel (Tiamat 1.4.4) + a new boot image.
To avoid serious issues I suggest you thoroughly READ the instructions for installing the Kernel and the boot image.
Double check to ensure you are using the right kernel/boot image for your xoom (3g or not, etc). Flashing the wrong thing in the wrong place can brick your xoom.
Note that an .img file is NOT the same as a .zip file. Check your work before you press [Enter].
Good Luck.
Terry

Also once you do have the right files, the /sdcard will still be the internal memory. You will find the external memory card in /sdcard/external.

Thanks bwcorvus, the only thing I missed was were to look for the external sd card!

tbayne said:
Rooting and/or updating to 3.1 does NOT get you a working SD card.
You will have to install a kernel (Tiamat 1.4.4) + a new boot image.
Terry
Click to expand...
Click to collapse
Ok I loaded a new boot image and loaded the Tiamat 1.4.4 following the Tiamat instructions
My kernel is now 2.6.36.4 Tiamat_Xoom-v1.4.4-Full_Throttle
However still no joy to access the SD Card. /sdcard/external remains empty when i open it with rootexplorer. It should have the Tiamat kernal zip and wifi_light_ON_Speed.zip on it because these are the files i put onto the sd card and flashed it with CMW.
Any idea what i did wrong ?
hj

After you flash the kernal, you have to restart xoom again for it to read sd card at startup. T least when I did it I had to restart the device one more time.

ok it looks like a SD Card Problem compatibility problem.
I'm using a imation 32 GB card (i-Express 2 microSDHC) class 10
I tried a SD card 8GB from my HTC HD2 and it works.
Strange that I can do the kernal and boot image flash from the card but not read it later. The SD Card also works on my HD2
Live is a mystery
HJ

hjfritz said:
ok it looks like a SD Card Problem compatibility problem.
I'm using a imation 32 GB card (i-Express 2 microSDHC) class 10
I tried a SD card 8GB from my HTC HD2 and it works.
Strange that I can do the kernal and boot image flash from the card but not read it later. The SD Card also works on my HD2
Live is a mystery
HJ
Click to expand...
Click to collapse
Try formatting the card in your hd2.
Sent From My Evo

update on my issue.
I found another thread with someone having a similar problem he used
Panasonic SD Formatter to reformat the SD Card. It resolved his
problem and indeed my problem. After reformatting it with the SD Formater 3.0
the memory card was finally recognised.
I did a erase and rewrite - takes an hour but was worth it.
I can now report that Imation 32GB SD card Class 10 is working on a Xoom with HC 3.1 and Kernal Tiamat 1.4.4
thanks to everyone
HJ

hjfritz said:
update on my issue.
I found another thread with someone having a similar problem he used
Panasonic SD Formatter to reformat the SD Card. It resolved his
problem and indeed my problem. After reformatting it with the SD Formater 3.0
the memory card was finally recognised.
I did a erase and rewrite - takes an hour but was worth it.
I can now report that Imation 32GB SD card Class 10 is working on a Xoom with HC 3.1 and Kernal Tiamat 1.4.4
thanks to everyone
HJ
Click to expand...
Click to collapse
Maybe you could edit the title of your thread to say (RESOLVED) so others with that problem can see your solution.

hjfritz said:
update on my issue.
I found another thread with someone having a similar problem he used
Panasonic SD Formatter to reformat the SD Card. It resolved his
problem and indeed my problem. After reformatting it with the SD Formater 3.0
the memory card was finally recognised.
I did a erase and rewrite - takes an hour but was worth it.
I can now report that Imation 32GB SD card Class 10 is working on a Xoom with HC 3.1 and Kernal Tiamat 1.4.4
thanks to everyone
HJ
Click to expand...
Click to collapse
I have just installed NTFS mounting from hellcat82, and SD mounting just work!

Can't copy files to the SD card

I have tried using ES file explorer, the Asus file manager, and FX file explorer. I get a copy failed message every time I try to copy a file to the removable SD card.
Anyone else have this issue?
You can't know your limits until you exceed them.

duckredbeard said:
I have tried using ES file explorer, the Asus file manager, and FX file explorer. I get a copy failed message every time I try to copy a file to the removable SD card.
Anyone else have this issue?
You can't know your limits until you exceed them.
Click to expand...
Click to collapse
Have you tried to reformat the card with fat32?

I just did. Seems I'm only having issues with the 32 GB size cards. Acting like they are read only. Can't find such a setting anywhere. Is there another format that should work?
You can't know your limits until you exceed them.

duckredbeard said:
I just did. Seems I'm only having issues with the 32 GB size cards. Acting like they are read only. Can't find such a setting anywhere. Is there another format that should work?
You can't know your limits until you exceed them.
Click to expand...
Click to collapse
Have you tried with the latest kernel (JB version .25) and what make and model of your sdcard? just wonder if compability issue and are we talking about Micro sdcard or full size sdcard? On the full size there is a little switch on the side to block writting to the card.

I'm only having issues when I'm using the tablet to copy files. I'm on CleanROM Inheritance. I don't recall if I had this issue with the stock rom. Sometime tonight I will make a backup of my current and then flash to stock rom. Since I'm talking about the removable SD card, it could only be the micro SD that is installed in the tablet. There is no switch on that card.
Sent from my HTC PH39100 using xda app-developers app

I think flashing the _that nodpi kernel should resolved your issue, give it a try.
Sent from my ASUS Transformer Pad TF700T using xda premium

Link to said kernel?
You can't know your limits until you exceed them.

duckredbeard said:
Link to said kernel?
You can't know your limits until you exceed them.
Click to expand...
Click to collapse
download this http://d-h.st/M6j then flash with twrp, during the install pick _that_nodpi_stock kernel.

That did it. Did it replace the overclock kernal I selected when I flashed CROMI 3.2?
Sent from my HTC PH39100 using xda app-developers app

duckredbeard said:
That did it. Did it replace the overclock kernal I selected when I flashed CROMI 3.2?
Sent from my HTC PH39100 using xda app-developers app
Click to expand...
Click to collapse
Yes, it replaced what ever kernel you selected during cleanrom installation. Since it stock kernel, you can no longer Overclock.

Is there another kernel that can be the fix and still give us over clock?
You can't know your limits until you exceed them.

duckredbeard said:
Is there another kernel that can be the fix and still give us over clock?
You can't know your limits until you exceed them.
Click to expand...
Click to collapse
Sorry but nope, I believe as soon as Asus release source code, _that is going to make an OC version for this and it's going to be awsome. For now we just have to wait.

Similar Problem With A Samsung Micro SD Card
duckredbeard said:
That did it. Did it replace the overclock kernal I selected when I flashed CROMI 3.2?
Sent from my HTC PH39100 using xda app-developers app
Click to expand...
Click to collapse
Hi.
I'm having a problem with my Samsung Micro SDXC I (Class 10) card. I've been messing abut with it for days now, formatting, re-formatting in exFAT, FAT32, NTFS but the problem persists; whenever I try to copy data across to the card, the first time the card is inserted, it starts to copy, sometimes even up to 1.5Gb of data but often much less, but then gives me a 'Write Error' or 'I/O Error' message & stops working. Sometimes it also deletes other data on the card when the error occurs. then, until I unmount the card again, it barely functions at all!
A big factor in buyinh this tablet, unlocking, then rooting it was so that I'd have an awesome, small, tablet that had loads of storage & could be transported around very easily. If I can't get the cards to work with it, that's a big part of it's usefulness to me down the drain.
I tried to download the kernal that was mentioned above the message of yours that I'm replying to but the file has been moved. Do you still have it?.......or know how I can resolve my problem without it?
Any help would be much appreciated.
Thanks.

dan5001 said:
Hi.
I'm having a problem with my Samsung Micro SDXC I (Class 10) card. I've been messing abut with it for days now, formatting, re-formatting in exFAT, FAT32, NTFS but the problem persists; whenever I try to copy data across to the card, the first time the card is inserted, it starts to copy, sometimes even up to 1.5Gb of data but often much less, but then gives me a 'Write Error' or 'I/O Error' message & stops working. Sometimes it also deletes other data on the card when the error occurs. then, until I unmount the card again, it barely functions at all!
A big factor in buyinh this tablet, unlocking, then rooting it was so that I'd have an awesome, small, tablet that had loads of storage & could be transported around very easily. If I can't get the cards to work with it, that's a big part of it's usefulness to me down the drain.
I tried to download the kernal that was mentioned above the message of yours that I'm replying to but the file has been moved. Do you still have it?.......or know how I can resolve my problem without it?
Any help would be much appreciated.
Thanks.
Click to expand...
Click to collapse
You don't say which rom or firmware you are currently using. Without knowing that I wouldn't go blindly flashing kernels that are nearly a year old
It could be that your card is actually damaged as I can copy files just fine on mine. I'm using a SanDisk Ultra uhs-1.

ROM & Firmware
sbdags said:
You don't say which rom or firmware you are currently using. Without knowing that I wouldn't go blindly flashing kernels that are nearly a year old
It could be that your card is actually damaged as I can copy files just fine on mine. I'm using a SanDisk Ultra uhs-1.
Click to expand...
Click to collapse
Hi sbdags,
Roger that
I'm not bad with most things tecchie but whilst I know which ROM I'm using, I'm not sure what the firmware is.
I recently updated to CROMI-X 5.2.2 from an earlier version in the hope that that might include an update or something that would solve my SD card problem.......it didn't
With regard to 'Firmware', I'm not sure where that's listed on the tablet but in the 'About' tab in my settings, it says:
Android Version - 4.2.1
Kernal Version - 3.1.10-g215ae8bf [email protected] # 1
Build Number - TF700 CHROMI-X 5.2.2 - 10.6.1.27.5 WW DEODEX
Pad EC Version - PAD-EC20T-0216
MobileDock Version - DOCK-EC20N-0207
I hope the firmware information you need is in there somewhere?
The card I bought is the latest 64Gb Samsung Micro SDXC Pro UHS-1 (Class 10) with write speeds of 20Mb/s & 70Mb transfer speed. I had read the formums & was torn between this card & the SanDisk 64Gb Ultra Micro SDXC (Class 10), the two-tone red/grey version, presumably like the one you're using but the Samsung was faster & at the time I bought it, the Samsungwas almost £15 cheaper. Since they were both reported to work, I opted for the Samsung card; maybe that was a bad decision?
I've just ordered the SanDisk 64Gb card, in the hope that that one will work because as i said, it really would be a shame if I can't make use of the extended storage that the SD crads give.
Do you use your SanDisk card in Micro SD form in the tablet or SD form in the dock.....or both......& have you got them formatted to exFAT or some other format?
Thanks again for your attention.

dan5001 said:
Hi sbdags,
Roger that
I'm not bad with most things tecchie but whilst I know which ROM I'm using, I'm not sure what the firmware is.
I recently updated to CROMI-X 5.2.2 from an earlier version in the hope that that might include an update or something that would solve my SD card problem.......it didn't
With regard to 'Firmware', I'm not sure where that's listed on the tablet but in the 'About' tab in my settings, it says:
Android Version - 4.2.1
Kernal Version - 3.1.10-g215ae8bf [email protected] # 1
Build Number - TF700 CHROMI-X 5.2.2 - 10.6.1.27.5 WW DEODEX
Pad EC Version - PAD-EC20T-0216
MobileDock Version - DOCK-EC20N-0207
I hope the firmware information you need is in there somewhere?
The card I bought is the latest 64Gb Samsung Micro SDXC Pro UHS-1 (Class 10) with write speeds of 20Mb/s & 70Mb transfer speed. I had read the formums & was torn between this card & the SanDisk 64Gb Ultra Micro SDXC (Class 10), the two-tone red/grey version, presumably like the one you're using but the Samsung was faster & at the time I bought it, the Samsungwas almost £15 cheaper. Since they were both reported to work, I opted for the Samsung card; maybe that was a bad decision?
I've just ordered the SanDisk 64Gb card, in the hope that that one will work because as i said, it really would be a shame if I can't make use of the extended storage that the SD crads give.
Do you use your SanDisk card in Micro SD form in the tablet or SD form in the dock.....or both......& have you got them formatted to exFAT or some other format?
Thanks again for your attention.
Click to expand...
Click to collapse
Well the ROM is mine so you are all good there. Lol. I only use fat32 as that is how the cards come.
Are you copying the files in esfileexplorer? Are they single files? Total size?

File Sizes
sbdags said:
Well the ROM is mine so you are all good there. Lol. I only use fat32 as that is how the cards come.
Are you copying the files in esfileexplorer? Are they single files? Total size?
Click to expand...
Click to collapse
Hi sbdags.
I've tried using both the File Explorer that was included with CHROMI-X & another one from the Play Store that I use on my phone called Astro; the same thing happens with both. As I say, the card seemed okay to begin with but all I had put on it was my Nandroid & Titanium backups (approx. 2Gb total with lots of small files included). The problems started when I tried to copy a season of a TV series onto the card to free up space on the internal SD card. It started off okay & I wasn't expecting any problems but then approx 1.5Gb, I got an I/O write error & then all the problems I described in my first post.
As an aside, the card performed best when formatted to FAT32 but according to the SD Card Association, SDXC cards come formatted as exFAT, so that's how it's currently formatted; I thought if that's how it came & it initially worked okay, maybe that would solve the issue. Again, I was wrong!
So, I'll format it back to FAT32 again but as I've already had it in that format, I wouldn't anticipate any change to the card's behaviour.
The 64Gb SanDisk card should be here in a few days, so I'll be able to report on whether that one works or not then.
Did you have to re-format yours when you first got it or are the SD Card Association talking nonsense? Oh, & you didn't say whether you're able to use your cards in both micro form in the pad &/or full-size form in the dock? Also, was the Firmware information you asked for in that mass of stuff I listed. If not, where do I find it, so I know for the next time you ask
Thanks again

dan5001 said:
Hi sbdags.
I've tried using both the File Explorer that was included with CHROMI-X & another one from the Play Store that I use on my phone called Astro; the same thing happens with both. As I say, the card seemed okay to begin with but all I had put on it was my Nandroid & Titanium backups (approx. 2Gb total with lots of small files included). The problems started when I tried to copy a season of a TV series onto the card to free up space on the internal SD card. It started off okay & I wasn't expecting any problems but then approx 1.5Gb, I got an I/O write error & then all the problems I described in my first post.
As an aside, the card performed best when formatted to FAT32 but according to the SD Card Association, SDXC cards come formatted as exFAT, so that's how it's currently formatted; I thought if that's how it came & it initially worked okay, maybe that would solve the issue. Again, I was wrong!
So, I'll format it back to FAT32 again but as I've already had it in that format, I wouldn't anticipate any change to the card's behaviour.
The 64Gb SanDisk card should be here in a few days, so I'll be able to report on whether that one works or not then.
Did you have to re-format yours when you first got it or are the SD Card Association talking nonsense? Oh, & you didn't say whether you're able to use your cards in both micro form in the pad &/or full-size form in the dock? Also, was the Firmware information you asked for in that mass of stuff I listed. If not, where do I find it, so I know for the next time you ask
Thanks again
Click to expand...
Click to collapse
I've never tried my card in the dock to be honest. Both my cards; 32GB and 64GB are SanDisk, I am not sure now what they cam in but I am using fat32 as I formatted them myself.
As for the stuff you posted I just wanted to know the rom and bootloader version. So CROMi-X 5.2.2 on 10.6.1.14.10 would have ben enough. Maybe the kernel helps too. In your case you are using the stock kernel. You may get better results on thatv4 kernel?

SD Cards & Kernels
sbdags said:
I've never tried my card in the dock to be honest. Both my cards; 32GB and 64GB are SanDisk, I am not sure now what they cam in but I am using fat32 as I formatted them myself.
As for the stuff you posted I just wanted to know the rom and bootloader version. So CROMi-X 5.2.2 on 10.6.1.14.10 would have ben enough. Maybe the kernel helps too. In your case you are using the stock kernel. You may get better results on thatv4 kernel?
Click to expand...
Click to collapse
Cheers.
So, I think I've grasped that the kernel is similar to the BIOS on a PC; is that correct?
When you say that I may get better results using _that's v.4 kernel, what improvements are you thinking I might see?

dan5001 said:
So, I think I've grasped that the kernel is similar to the BIOS on a PC; is that correct?
Click to expand...
Click to collapse
Not really, the kernel is ... the kernel. The core of the operating system. Under Windows it's ntoskrnl.exe.
You could compare the bootloader with the PC BIOS - its main function (nowadays) is to start the operating system.

External SD card problem

Hello! I think that needs another topic.
A small question about the problem with SD card on the p5100.
As of 4.1 or 4.2 google has introduced the 'cool' feature - multi-profile system.
Okay, everything is good, but with this 'cool' feature they have changed something with SD cards. Now internal memory is divided to the internal memory and internal SD-card which is considered as an external SD card. All apps are installed there, and my external SD card (32 gb) is now useless. Ofc, I can explore it on a file explorer, but the system thinks it is the second SD card and don't want to move any apps there.
And that's the problem. All apps are instaled on the internal-external SD card and the free-space is.. You know.
I can't update my apps, I can't download new apps - no memory alert.
Cyanogenmod nightly 10.2
So, is there any way to fix it, like Samsung has done to SGS3?
It's getting everything out of me.
On my phone everything is ok, but on the tablet.. :/
And please don't say google it.
I'm searching for this fix for.. months. Can't find anything so posted here.

Try Link2SD
Sent from my LG-P690b using Tapatalk 2

Luigi2012SM64DS said:
Try Link2SD
Sent from my LG-P690b using Tapatalk 2
Click to expand...
Click to collapse
Already tried.
"App2SD is not supported by your device. Because your Device has a primary external storage which is emulated from the internal storage. You can link the app in order to move its files to your SD card.
That's the problem.
Apps are already installed on the SD card but the wrong one.
Anyway, the emulated SD card has 10 GB free space, the 'proper' SD card has 25GB free.
When I try to update something on G Play, or install any app from my explorer - error, no enough free space.
Oh come on.
i.imgur.com/hWzliZS.png
Where is that "no enough free space"?
For a 200 KB update?!
/edit:
And I think that 'canceling the emulation' of the internal SD card will do a lot for me.. But how. :/

root & clean master
Sent from my GT-P3110

GPkomp said:
root & clean master
Sent from my GT-P3110
Click to expand...
Click to collapse
I don't see any app called 'root & clean master'. Anyway can't install any app because I 'don't have enough space'.

Check your internal memory using a pc and see exactly what you have stored there. Over 10GB should be enough for a 200KB update. I suspect something is wrong with your tablet.

Anyway, hard reseted. You can close the topic.

Acrivec said:
Anyway, hard reseted. You can close the topic.
Click to expand...
Click to collapse
I just got a p3110 last week and have this same issue, Its only a 8gb and I want to install apps to the sd and it will not, did you fix yours? how?

You cannot move or install apps to the external sd card. Only the internal storage. There are methods if you are rooted. Read down the forum topics. There are a few threads discussing this. But stock tablets do not install apps to the external sd card.
Sent from my SGH-I717R using xda premium

Install link2sd
Create a new ext3 partition of desired size in ur external sd using mini partition tool.
Then use this partition to move all your apps using link2sd...
I had done this procedure in my old galaxy y because it had very less internal storage....
I haven't checked it on my tab though... but why don't u give it a try...
Sent from my GT-P3100 using XDA Premium 4 mobile app

Problem
try to reflash

Acrivec said:
I can't update my apps, I can't download new apps - no memory alert.
Cyanogenmod nightly 10.2
Click to expand...
Click to collapse
CM10.2 isn't yet working flawless on the Tab 2. I have tried nightlies 10 days ago and on 23th but none of them worked as good as stable CM10.1.1 does.
EDIT: I've flashed today CM10.2 nightly 20130826 and finally everything in my p5110 seems to work

Acrivec said:
Anyway, hard reseted. You can close the topic.
Click to expand...
Click to collapse
This was my solution.
Posting after this was kinda useless. Please close the topic.
~edit:
Hard reset -> delete all data, fabric reset.

SAME 2 ME
my p5100 no have no problem ,everything working good .i have one message 2 told you ,p5100 sdcard only working with the 4.0.3 sistem , no one eles, some day i change to change about 15 times, 4.1.1~~4.1.2~~to the new one 4.2.2.. sdcard is not working, everything you want 2 user d date form sdcard , in not working , try see d photo ,is bad photo..
so right now i have to told you ,if you want user the sdcard ,you have to change 4.0.3 back to your phone

MicroSD issue with stock Sprint ROM

I have a issue with microSD card with the stock rom (jb4.1.2, sprint).
When I insert my 32gb samsung class 10, the phones tell me that is corrupted.
I have formatted with PC (windows 8.1), with the phone (in android, not in recovery) but same issue.
I also run chkdsk from windows to fix the problem, but nothing..
The only way to get my SD working is mount and remount from android settings until it makes a strange "mount loop" and to the end phone accept the card.
Every reboot or every time I get out the card I have the same issue.
I also have issue with spotify: aftero 400 / 500 MB of downloaded cache it tell me the memory is finished.. but I got 10gb left in sd and 2 in internal.. I think issues are connected.

Have you tried a different SD card? Perhaps that card is in fact corrupt.
Sent from my XT897 using xda app-developers app

arrrghhh said:
Have you tried a different SD card? Perhaps that card is in fact corrupt.
Sent from my XT897 using xda app-developers app
Click to expand...
Click to collapse
With CyanogenMod (10.2 and 11) works perfectly on my phone, with my old desire Z works.. The problem is only with original sprint rom..
Test: 64mb microSD works ok.. (don't ask me why I have 64mb microSD )
New test: my brother's 64gb kingstone class 10 works perfectly, my samsung 32gb class 10 on my brother's huawei p1 with CM10 works perfectly..

SD card corrupt after android 10 update

Merry Christmas!! Hope we all had a lovely day yesterday!
Hi there, I updated my s10e SM-G970F to android 10 2 days ago. I noticed the device being slowler than usual. With a couple laggy issues.
Yesterday the SD card (Sandisk 400gb class 10 U1) just stopped working. On the settings menu in the storage option , the card is "corrupt". I need to format it to use it again (i had made a backup already) but no luck, it comes up with "158mb used out of 2GB" . However on the laptop the SD card comes up with the full storage capacity and still has all my data on, even after "formatting" on the phone.
The SD card isn't a fake or broken in any way, I had bought it in July this year and ran a full test to ensure it is a legit one. The card works perfectly on the Xperia XZ2C on Android 8.0.
Up till the android 10 update, the card was working completely fine.
My conclusion is that the update messed the system up somehow. Can anyone help me out with this issue? Is there any way I can downgrade to the lastest Android 9 on the S10e?

barret95 said:
Merry Christmas!! Hope we all had a lovely day yesterday!
Hi there, I updated my s10e SM-G970F to android 10 2 days ago. I noticed the device being slowler than usual. With a couple laggy issues.
Yesterday the SD card (Sandisk 400gb class 10 U1) just stopped working. On the settings menu in the storage option , the card is "corrupt". I need to format it to use it again (i had made a backup already) but no luck, it comes up with "158mb used out of 2GB" . However on the laptop the SD card comes up with the full storage capacity and still has all my data on, even after "formatting" on the phone.
The SD card isn't a fake or broken in any way, I had bought it in July this year and ran a full test to ensure it is a legit one. The card works perfectly on the Xperia XZ2C on Android 8.0.
Up till the android 10 update, the card was working completely fine.
My conclusion is that the update messed the system up somehow. Can anyone help me out with this issue? Is there any way I can downgrade to the lastest Android 9 on the S10e?
Click to expand...
Click to collapse
Same problem here, did you get it figured out?
Sent from my Samsung SM-G970U1 using XDA Labs

Your SD card might have gone bad. That happened to me with my Axon 7.

SwangoTango said:
Same problem here, did you get it figured out?
Click to expand...
Click to collapse
Ye it was the SD card. It went corrupt so Sandisk replaced it free of charge ?

I have the same problem on Nokia2.3 after updating to android 10
It seems the problem with the update, as I noticed when choosing using the sd card as phone storage it format it to GPT not fat32, even if I format it to fat32 it reformat it.
I hope this problem be fixed with even an update patch.
I think the alternative is to root it and use the old methods as they were very efficient.
I don't know why not to look into these methods and adopt it by system developer s

Clear system cache on boot menu... always after a firmware update.
Try a hard reboot if that doesn't get it.
I highly doubt reformatting the card will help unless the OS corrupted it somehow. Backup the data and reformat. Not a big deal if that's all it takes.
Hard reset, with a large firmware update it may be the best way to go.
Firmware updates; have a damn good reason(s) to do them if you like your current OS version and it's fast and stable.
Security is rarely a problem with even ancient Android OS's unless you do something stupid.
I ran Kitkat until last year, now running Pie and
-not- going to Q on my 10+.