I cant write to my sdcard?

[rp3]

I seem to have solved my problem, not sure how...

I used gparted on a linux laptop to examine one of the sdcards:
It had one primary fat32 partition on it.

I then used gparted to create a new msdos partition table,
then created a full sized extended partition on it,
then created 1 fat32 logical partition in the extended partition
then created 1 ntfs logical partition in the extended partition
then created 1 ext4 logical partition in the extended partition

when the sdcard was inserted into the pinephone, I found: (using nemo)
I could actually write to the fat32 partition (yay -sucess!)
I could not write to the ntfs partiton (would not mount)
I could not write to the ext4 partition (permission problems)

I then put the sdcard back in the laptop, and deleted all the partitions and replaced them with 1 full sized, primary fat32 partition, which was then writable in the pinephone.

So I can now save files to my sdcard!

-maybe the above might be useful to someone else sometime?

All the best everyone, great project!