Android App LVL protection cracked

Question

my Android App obfuscated with Proguard and protected by Googles LVL has been cracked probably by a tool like Lucky Patcher removing the License check :-(

Do you know of any better ways of implementing the Google License Check, possibly modifying the licence library as described here or using some other technique preferably without communicating with a server.

Thank you

Answer 1

Generally, follow the guidelines in the article and change the default LVL implementation. More specifically, get the cracked version and try to find exactly what they changed, then focus on that part.