Any method out there to enable flex storage?
I'm going to attempt this method that is being used on the Xperia Z5 Compact:
http://forum.xda-developers.com/z5-compact/general/tuto-enable-adoptable-storage-mm-t3334153
Not sure what to expect from it. I hear it's buggy and that some apps don't properly see the SD card. I've been waiting for this for a while and have a fresh 128GB card to test with.
EDIT:
One thing I noticed immediately upon updating with my old 64GB MicroSD card is that any apps I had installed via App2SD are not inaccessible and there isn't a means of moving them back to the phone to fix them. So it appears that I will need to uninstall all of them and reinstall them. Great. I think I'll wait until I put the blank 128GB card in.
PSA: So warning to anyone using App2SD, move your apps first before upgrading because the upgrade process won't do it for you (which it should if the feature is now gone).
EDIT2:
Wait, it looks like I can move them to Internal using the "Storage" option in each app. I'm going to give that a try and then attempt to format the 128GB card when I get home as Internal storage.
EDIT3:
Formatted my 128GB card as adoptable storage using the guide, but it's showing the total space as a negative number. Not sure what to do about that.
EDIT4:
Despite the negative number for total space, most things appear to be working other than the camera. It cannot detect the original internal storage, the new internal storage, nor the SD card. Not sure if partitioning the card as mixed would have helped. I might try that.
It seems that moving apps to the SD card requires adopted storage now, but it really does appear to move it all to the card. I've had a noticeable change in used space when moving apps on both the internal storage and the SD card itself. I really wish Sony would have left this in from the Concept firmware.