Now we Faced this type of problem than used Simple Tricks:
Step 1: Check your SHA1 Key
For Generate The SHA1 key : (NOTE : This Command Work On Installed Java Folder/bin/)
keytool -list -v -keystore “%USERPROFILE%\.android\debug.keystore” -alias androiddebugkey -storepass android -keypass android
(Note : Sometime This will not Work on Singed Apk)
Step 2: Now If Its not Worked Than Used this Command for Singed APK :
This fingerprint generated from keystore so it’s work ideally.
keytool -list -v -keystore {keystore_name_path} -alias {alias_name}
example: keytool -list -v -keystore c:\siddharth\myapp.jsk -alias myapp
MySuggestion : Add Both SHA1 Key (Release SHA, Debug SHA)