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La l\u00f3gica de verificaci\u00f3n vulnerable en realidad obtiene la firma del \u00faltimo bloque con una identificaci\u00f3n de `0x7109871a`, mientras que la l\u00f3gica de verificaci\u00f3n durante la instalaci\u00f3n de Android es obtener la primera. Adem\u00e1s de la actualizaci\u00f3n de la firma real que se ha solucionado (KSU pens\u00f3 que era V2 pero en realidad era V3), tambi\u00e9n existe el problema de la degradaci\u00f3n de la firma real (KSU pens\u00f3 que era V2 pero en realidad era V1). Encuentre una condici\u00f3n en la l\u00f3gica de verificaci\u00f3n de firma que causar\u00e1 un error de no encontrar la firma, y KernelSU no implementa las mismas condiciones, por lo que KSU cree que hay una firma V2, pero la verificaci\u00f3n de firma APK en realidad usa la firma V1. Este problema se solucion\u00f3 en la versi\u00f3n 0.7.0. 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