Help! Can't update to 3.71 M33!

[shizuru]

I have tried several times, it got bricked every time. I'm quite sure I followed the guides exactly. I got information as below:

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The system configuration of this psp system does not appear to correct
the update connot be completed.
contact technical support for assistance.(DRNFFFFFFBO)
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Does anyone know what I can do?

 

[x3sphere]

You need to fix your idstorage keys with KeyCleaner, available here:

http://forums.exophase.com/showthread.php?t=1238

 

[shizuru]

Thanks for your help. I fixed keys, but nothing changed, it got bricked again.

 

[Acerthief]

did you unpatch key5?
that's why it may caused the brick

 

[x3sphere]

Which keys did you patch? The error you are getting is related to key 8.