[Q] Problem Flashing nAa-13 Kernel

Nakiboy said:

I want to install MiniCM7 2.2.1, I understand that the nAa-13 kernel is required before installing this.

I have tried flashing this kernel but get the error: ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ERR_DYNAMIC="SIN header verification failed"

My phone details are:
Xperia X8i (E15i)
Firmware: 2.1 update1
Baseband: M76XX-TSNCJOLYM-53404015
Kernel: 2.6.29 SEMCuser@SEMCHost#1
Build no. 2.1.1.C.0.O

I tried installing the mini CM7 rom without the nAa-13 kernel and this soft bricked my phone. I had to download a stock 2.1 rom and reflash it.

Anyone know where I am going wrong?

Thanks in advance

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playjun said:

Im om mini cm7. And i want to install naa ics 4 kernel and mini cm9. Cant i flash it directly the kernel ? Thanks and sorry for noob question

Sent from my E15i using xda premium

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playjun said:

Thanks .so i dont need to uninstall naa 13.just direct flashing from naa 13 to naa ics4.

Sent from my E15i using xda premium

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playjun said:

Thanks .so i dont need to uninstall naa 13.just direct flashing from naa 13 to naa ics4.

Sent from my E15i using xda premium

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SpyderX said:

You have to unlock your bootloader first before you can flash custom kernels.

Guide here: http://xdaforums.com/showthread.php?t=1254225

If you find it too complicated, there are links to other guides in the OP. Make sure that your phone's manufacture date is 11W28 or below.

Sent from my X8 using Tapatalk 2

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Betogil89 said:

I have a problem, after flashing my x10mini I got a black screen and i cant even get into recovery. I have allready unlocked the bootloader and every time I flash same thing happens... :\ any help????

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