First, this http://forum.xda-developers.com/show....php?t=2554954 is for Xperia Mini, Mini Pro, Xperia Pro, Active, Ray, Live with Walkman, not for your xperia X8 or Xperia Miro
Second, you need to flash stock ftf or restore your backup if you have any backup. Hope it helps!
Some of you may have remembered a story on the Portal a few weeks back … more
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