MicroSD Card problem

[wdaniel546]

Device: HTC One M8 Bell
Firmware: CM13 Nightly
Recovery: TWRP
Android Version: 6.0.1
Security Patch: April 2, 2016

So lets start it off like this, I had this 32gb lexar micro sd card that I have been using for quite some time. I decided it was time to get a new one so I went over to amazon and bought a well regarded 64gb patriot micro sd card to replace what I have in my phone. Once it arrived I unmounted the lexar micro sd and put in the patriot micro sd. I had this strange message pop up instead of it going oh hey lets set up your storage I got unsupported lexar sd card. I decided to tap on the notification and run the sd card set up stuff multiple times and just ended up getting errors that wouldn't allow it to be mounted. The phone is detecting the new patriot 64gb micro sd card as the old lexar 32gb micro sd card. I took it out and threw the card into my desktop system running windows and boom 60 gigabytes of micro sd flash detected everything came up fine it was partitioned and everything. So I decided maybe the file system is wrong and since I couldn't format in android storage settings anywhere until the card is set up I did it in the TWRP recovery where the card is fully detected and works fine. I can move files to and from it and everything without any issues but as soon as I go into android I get unsupported lexar sd card. After a while of having no luck at all I just decided to flat out wipe everything through recovery except the micro sd card and do a fresh android install and see if any system files in android were causing it. Here I am sitting in android with this brand new install with the message in notifications "Unsupported Lexar SD card" I have dug through system files tried wiping the cache for external storage. Nothing is working I have no idea. I really do not know what it causing this. Is there anything else I can try to see if I can fix this? Thanks.

 

[redpoint73]

Try formatting the SD card on your PC. Folks sometimes have better luck that way, than using the phone to format.

 

[wdaniel546]

I have tried that already in multiple formats too, I ended up leaving it in fat32 since well that is the standard filesystem supported. I had no luck with anything I even reformatted it on my phone later with twrp because I thought the filesystem windows gave it was an issue. Nope it wasn't, I still have the same unsupported sdcard error. Something really weird though, I took out the new 64fb micro SD card that was having this issue and put in some ancient sandisk 2gb microsd that I have lying around, it worked fine. Android popped up with setup for the card. I still don't think something is wrong with the 64gb patriot microsd like twrp sees and and everything that it in it. Files can be moved around and so does windows just not android

 

[redpoint73]

I just decided to flat out wipe everything through recovery except the micro sd card and do a fresh android install and see if any system files in android were causing it.

"Fresh Android install" meaning what? Did you try a different CM nightly, or another ROM (like Sense)? Maybe just a bug in the particular CM nightly.

 

[wdaniel546]

"Fresh Android install" meaning what? Did you try a different CM nightly, or another ROM (like Sense)? Maybe just a bug in the particular CM nightly.

I reinstalled a newer version of CM 13 Nightly and before that I did an advanced wipe cleaning all partitions except for micro sd, usb-otg, sd-ext. I left the micro sd because it had the cm build on it. However yes I did also wipe the micro sd card card just earlier in the day, the problem still persisted once in android.

 

[phoeniiiix]

Have you tried a low level format ? and/or partition-table reset on your SD-card, it may fix it