Unity Check Crash

First get the stack information, AS 

Then find arm-linux-androideabi-addr2line (corresponding to arm v7) or aarch64-linux-android-addr2line (corresponding to arm 64) in the NDK directory of Unity. Which one to use depends on which framework the phone is.

cmd 

For the corresponding library, select the library compiled by your own AS, or decompress the symbol table exported by Unity.