Make sure to search as this has been brought up a number of times:
- Help! Stuck into loading screen after upgrade
- At attempt at updating leaves device stuck in "loading" state
- After System update, keep shownig LOADING
- … and many more
Suffice to say that updating the launcher has been known to cause issues. Updating from an old version of the launcher to newer ones especially since many things have moved locations in the file system.
Easiest solution may be to just re-flash the OS onto your SD card and star
over:
I recommend v0.21 as v0.3 is not very stable especially if using the lima driver.