Question Samsung S7 Active "No SD Card Inserted"

[woomonkey]

Hi all,
I just got this phone used, unlocked from AT&T. Worked fine for two days and now it no longer recognizes my SD card.
My Files says No SD Card Inserted.

rebooted the phone several times
tried more than one SD card
verified that each of those SD cards work just fine in multiple laptops
tried a different tray (taken from another S7 Active phone that is also malfunctioning and that I haven't RMA'd yet)
reformatted one of the SD cards into FAT32
the other SD card is exFAT as usual
wiped the phone's cache partition and rebooted
reseated the SD card trays several times
booted into safe mode

the SD card was detected perfectly well 24 hours ago.
I plugged the phone via USB into one of my laptops and selected "Media transfer"... that is when I noticed that the File Explorer (in Ubuntu 16.04) only detected the phone native storage. The File Explorer did not detect the SD card inside the phone when the phone is connected via USB.
Windows 10 PC is the same - only detects internal storage via USB, no SD card.

Any ideas? Thank you!

 

[britechguy]

Not that this will help you any, but I had exactly the same experience on an ancient LG Optimus V that I've been using as an MP3 player just about 2 weeks ago.

It had functioned perfectly for years now then, with no logical reason, after a reboot it would not recognize its microSD card. That same card, and others, too, are recognized by many other devices in the household. Heaven only knows why, as the card had not even been removed.

If you have the option to return the device I would, as the time and expense to even make an attempt at getting this working again will quickly outstrip the device's value.

 

[Sagar_20]

Most probably, that sd card is corrupted.

It's best to try to connect it with a PC, but using a card reader (Not the phone).

It will likely be detected but with a warning and an option to "scan for and fix errors and bad sectors". Make sure to check both the boxes and proceed.

If you don't have anything important there, simply quick format and see what happens.

There is also a possibility that the micro-sd card slot is malfunctioning (H/W problem).