working hard on AiO v5.0, last night I went sleep ~05:15AM

for now I can tell you two things:
1) 'resigning' VpnFaker.apk on device to get device-specific sign is bull****.
zipsigner2 signs with official platform.x509.pem&platform.pk8.
you can unpack from signed vpn apk CERT.RSA file and check it with
java jdk's "keytool.exe -printcert -file CERT.RSA".
platform's md5 is
Code:
8D:DB:34:2F:2D:A5:40:84:02:D7:56:8A:F2:1E:29:F9
.
also - you can compare signed apks from 'other fw devices' - they will be identical.
so once again - resigning is bull****
2) settings which are supposed to make your device get root easier,
like 'stay awake', 'mock lockations' etc. are also not necessary.
I have custom AUTOMATIC root script, still trying to make it working in 100% runs.
For now I can tell you that you will need only make two clicks on device - thats all

No more terminal manual typing etc.
I have in plans rewrite all functions to be compatible with Xperia Tab
(many of them are already working - as I read some reports

).
So I can say that v5.0 is aaaalmost ready
BTW. R5A - shell in recovery cant be achieved, right?
Maybe someone knows what is changelog in R5A?
Is it worth to flash it? If yes - i've got idea to get R5A,
without locked recovery shell
br
condi