Sorry for the delay, as I just reset my jolla for the second time in 2 days having some issues, here is output of the command



[root@Jolla nemo]# sfdisk /dev/mmcblk1
Checking that no-one is using this disk right now ...
BLKRRPART: Succès
OK

Disk /dev/mmcblk1: 3902128 cylinders, 4 heads, 16 sectors/t
rack
sfdisk: /dev/mmcblk1: unrecognized partition table type

Old situation:
sfdisk: No partitions found

Input in the following format; absent fields get a default
value.
<start> <size> <type [E,S,L,X,hex]> <bootable [-,*]> <c,h,s
> <c,h,s>
Usually you only need to specify <start> and <size> (and pe
rhaps <type>).

/dev/mmcblk1p1 :

As I myself can notice there is an issue with the formating of sdcard. My jolla sees and accesses the sdcard and it gets mounted as sdcard through MTP.

here is the code I used to format the sdcard and mount it

mkfs.ext4 /dev/mmcblk1p1
mount -t ext4 /dev/mmcblk1p1 /media/sdcard/

I do not have access to linux os on pc, only windows, so formating the sdcard through gparted or the likes of it is really an issue for me at the moment, how do you advise I proceed?