Need help Upgrading Android 5.1 to Marshmallow (6.0)

Soo i have a ARGOS Bush Spira b2 (google the phone its at argos) and i don't know how to upgrade to android 6 cuz am scared of warnty or rooting etc
I want a safe method to do this bcuz my sister has android 6 when she bought it second hand i got myne Brand New first hand pls help also i would like to create a stock firmware backup of the current phone please help!

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by theron72
2 hours ago
Last post by lockman.joany
25 minutes ago
Last post by ayden01
2 hours ago
Last post by considine.rogelio
3 hours ago
Last post by shaun48
4 hours ago
Last post by millie.kihn
1 hour ago
Last post by nruecker
55 minutes ago
Last post by uriah.dach
1 hour ago
Last post by chance04
30 minutes ago
Last post by wuckert.tracy
4 hours ago
Last post by ahmed94
3 hours ago