An SD card was removed unsafely. To prevent your phone from restarting... notification

[utopic]

Ever since the big update to Android 11 / One UI 3 I've been getting the

"An SD card was removed unsafely. To prevent your phone from restarting unexpectedly, save unsaved data and restart your phone"

notification, many times a day.

After the update and prior to having this error, I have not messed with the card or the SIM, connected the phone to the PC, dropped the phone or done anything that might lead to this - the card had been inserted months ago in the phone and left untouched.

I don't seem to have any issues using the phone, can access the card OK for both reading & writing. 

I can't turn the bloody notification off and it's driving me up the wall as I'm getting it even during the night.

Have tried:

• restarting the phone
• unmounting the card and restarting the phone
• physically removing and card from the phone and putting it back
• removing the card and error checking it (in windows, using a card reader)
• copying the card contents to the PC, formatting the card in the phone, then copying the contents back (via the windows file explorer)
• getting into the recovery mode (which was pain the *ss) and wiping the dalvik cache
• full/factory reset

The model # is SM-G970F/DS, kernel version is 4.14.113-20607146, latest available updates are installed, phone is stock, non rooted, non carrier locked.

Any suggestions?

[sarasphotobox]

maybe is the SD card corrupted ? usually when a SD card has unknown errors it could relate to corrupted SD card. I would suggest backup SD card data onto laptop if u have then format SD card either on your laptop

[Pugs1957]

Did you clear the system cache after the update?

[utopic]

Thank you both for your suggestions.

> format SD card either on your laptop

I've done that, in the phone, and there was no change.

> Did you clear the system cache after the update? 

I did not, but I think I did restart after the update process. I would have expected the cache to be cleared as part of the update, without manual steps on my part.

Out of desperation, I went ahead and fully reset my phone, re configured everything from scratch to avoid any possible issues due to maybe restoring a corrupted backup.

I'm still getting the "sd card was removed..." message, so the full reset didn't fix anything.

[GeekGirl]

I'm having the same issue with S20 FE, started after Android 11 update.  I did most of the same steps you did, without the factory reset.  Error persists.  Did you try contacting Samsung?

[utopic]

Hi, I did not manage to find time for that too.

If you do manage to find a solution outside the forums, please, also post here.

[GeekGirl]

Samsung suggested a new Memory Card.  I purchased a Class 10, UHS Speed Class 3, Video speed V30 card and I am no longer getting the error.  Maybe my other card was too slow?  Anyway it's fixed. 😊

[scuthber]

I have the same issue after the last update. This has happened before though on a different Samsung and a different card. It seems that updates can mess up the card. I am going to copy everything off, format and copy back on, but it's really annoying. 

I am planning on unmounting/removing the SD card before the next update!

[utopic]

Your steps did not work for me - I also copied files, formatted the card from within the phone, and copied back - and the issue persisted.

[scuthber]

Time will tell... Annoyed that it worked fine for a year and only failed after the last update. There were two updates, in fact, one about a week or so after the other. Problem started after the first update.