Here is the steps I have followed to update the kernel :
Grab the latest Unofficial CM9 ROM for P1000/L/N
From Alroger's Blog
unzip it and use boot.img file
Steps to update the kernel :
1 - reboot the tab
2 - Put the tab in download mod...
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer? | Terms of Service