I followed option 2 and my Pi would no longer boot. I edited config.txt as in option 1 and got it to boot, then updated again. With the sudo apt full-upgrade I get this error:
...and it still will not boot.
Quote:******************************************************************************************
Determining I2C GPIO device
******************************************************************************************
******************************************************************************************
I2C GPIO device:
******************************************************************************************
******************************************************************************************
ERROR occured!!
No valid I2C GPIO device found
******************************************************************************************
******************************************************************************************
ERROR occured!!
You might try to install the package again.
******************************************************************************************
dpkg: error processing package moitessier (--configure):
installed moitessier package post-installation script subprocess returned error exit status 1
...and it still will not boot.