I want to cross 100 member limit restricted in whats app so have rooted my android device used ES explorer followed steps 

data/user/0/and modified pre xml file to size limit 1000
same on path : data/data/shared pref/and modified pre xml file to size limit 1000

now I see group limit has increase 1000 but still i am only able to add till 101 members unable to add 102 member .
anyone can suggest on it please ?