Why this phone does not save my SMS and calling history?

[shenzhou]

I dont think there is any reason a phone should delete old SMS and calling history!
All my SMS older than three month, call older than one month get deleted automatical by this stupid phone!

[Uliwooly]

@shenzhou

It shouldn't delete the texts, which messaging app are you using

As for the call history, there are myriad alternatives, the more texts and/or call history the laggier those apps will be. 

Embrace Android's PlayStore