Metropcs Fierce XL possible to upgrade to Marshmallow 6.0?

[markm75]

I have a 5.x lollipop Fierce XL.. is there a method to safely upgrade to Marshmallow 6.x?

I cant seem to find one.. i see notes on using kingroot to root (i've never rooted before).. but some reports are that it slows things down and i'm not seeing that rooting helps to achieve 6.x upgrading?

Thanks in advance

 

[markm75]

Any changes on this front to at least get to version 6.0?