Keystore Password Recovery Android

My client has shared only keystore. He don't have password. Previosly someone other had publish that apk on play store & client is not able to contact him. App contain more tha

Solution 1:

Unfortunately, you're not the first one to suffer from that kind of problem.

As stated in: Lost my keystore for uploaded app on android market And: Android: I lost my android key store, what should I do?

There isn't any other solution than bruteforce :s