PLEASE HELP [ gt-n7000]

Samsung GALAXY Note (white)
Model: [GT-N7000] 16GB

Version: 4.1.2 Jelly Bean
Version de banda base: N7000XXLSA

Version Kernel: 3.0.31 -549786
se.infra@SEP-64 #3
SMP PREEMPT Tue Nov 20 00:02:36 KST 2012

Number of compilation: JZO54K.N7000XXSLA



MicroSD: Samsung HC4 8GB
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cant change the kernel and the OS after change to JB

i want change to a stable version FOR ROOT but in JB 4.1.2
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Help me please! im from venezuela .