Is there someone can help unlock bios write access to MSR 0xE2 about Dell XPS L702X

[shuhai_huang]

1、I use an unlock bios to open the uefi support install Mac OS Sierra 10.12. There have a new problem cannot use the AppleIntelCPUPowerManagement,need a nullcpupowermanagement.kext to disable it. So could someone please help unlock bios and write access to MSR 0xE2.

2、I had try the PhoenixTool to unpack the bios file,and find powermodule F7731B4C-58A2-4DF4-8980-5645D39ECE58_981.ROM replace the text 75 08 0f ba e8 0f 89 44 24 30 to eb 08 0f ba e8 0f 89 44 24 30.Then rebuild a rom file flash it,still not working

Thank you very much

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Dell Inc. XPS L702X A19 bios  link: http://www.dell.com/support/home/cn/zh/cndhs1/Drivers/DriversDetails?driverId=CPF0J&fileId=3080900230&osCode=W764&productCode=xps-l702x&languageCode=cs&categoryId=BI

the modify bios: http://forum.notebookreview.com/threads/...88/page-59