ubuntu-phone team mailing list archive

[Stephen <admin@xxxxxxxxxxxxxxxxxxxxxxxx>]

I had the same issue when attempting to update my Pro 5 to OTA 14

I could not delete the folder contents, so kept getting device full message.

I fixed it by reflashing right from custom recovery - /TWRP 3.0 m86.img 
(for Pro 5)

After installing TWRP, I booted into recovery and wiped cache and 
partitions etc as if installing for the first time (e.g. as if over the 
top of Android).

Then flashing the relevant Ubuntu Touch image - details I used are here 
https://www.smoose.nl/sites/default/files/bestanden/meizu_pro5_ubuntu.pdf

All now works fine.

It means though losing all current data, so you need to backup as needed 
prior to wiping partitions