Corrupted my 200gb Micro SD when trying to convert it to internal storage on Shield

[willdono]

I wanted to convert my 200gb micro sd card into internal storage for my Nvidia Shield tablet.For the specifications of the N. Shield it said 128gb was the biggest storage possible for a micro sd card, but I'd seen multiple cases of people using 200gb micro sd cards just fine on the shield.

I started the formatting process ,it got stuck at 20% and then crashed. I restarted my tablet to find that the SD card had become corrupted. I brought a micro sd adaptor and plugged it into the computer. I tried to format it from the computer to find the error message: "The volume does not contain a recognized file system". I check disk management to find that it only has 30mb storage.

I've have tried everything to restore it back to 200gb, but it still shows up as only having 30mb.
This is what I've done so far: 1) Everything diskpart related.
2) Like a dozen SD formatting programs
3) Partition tools have also failed

What do I do now? I don't want $200 down the drain.

 

[Neoistheone2000]

You could try using DISKPART on Windows or the disk utility on a MAC and try to repair the volume that way, other than that I think your SD Card is made by SanDisk who has a lifetime no questions asked warranty.
I originally used the Best Buy "Pixtor" branded SanDisk card in my Portable and they replaced it with an Ultra no questions asked, (64GB U1) SD Cards die unfortunately, just call them, don't do what I did and waste 4 hours trying to fix it lol.

P.S. It sounds like the format got to 20% and found a bad sector.

Sent from my HTC One_M8 using Tapatalk

 

[MadZiontist]

I wanted to convert my 200gb micro sd card into internal storage for my Nvidia Shield tablet.For the specifications of the N. Shield it said 128gb was the biggest storage possible for a micro sd card, but I'd seen multiple cases of people using 200gb micro sd cards just fine on the shield.

I started the formatting process ,it got stuck at 20% and then crashed. I restarted my tablet to find that the SD card had become corrupted. I brought a micro sd adaptor and plugged it into the computer. I tried to format it from the computer to find the error message: "The volume does not contain a recognized file system". I check disk management to find that it only has 30mb storage.

I've have tried everything to restore it back to 200gb, but it still shows up as only having 30mb.
This is what I've done so far: 1) Everything diskpart related.
2) Like a dozen SD formatting programs
3) Partition tools have also failed

What do I do now? I don't want $200 down the drain.

I recently "soft-bricked" a brand new SanDisk 200GB card. I was able to recover the wiped partition. I recommend you try Minitool Parition Manager. If that doesn't work, try Minitool Data Recovery. I had to end up utilizing the Data Recovery program. Now it works, and my 200GB SanDisk is good as new. If you can't seem to repair it, like @Neoistheone2000 said, your warranty will cover it Though it sucks having to go through an exchange process. Amazon is the best for situations like that.

 

[elkay]

Use any partition utility that is not built into Windows. Minitool per above, any flavor of Gparted, etc. "Real" tools will bring back any bad drive that is not a hardware failure. Ironic to many, Mac's Disk Utility is actually quite capable in this regard, as well.