Lenovo — Lenovo K50a40

Address:

395007

We have purchased Handset K3 note online by Flipkart in July 2915, since few months i am very much tired by using this because;
i, for dialling takes several minutes for calling & searching of no is very slow;
ii. some times it hangs, it takes lots of time;
iii, Many times in urgency we could not call immediately.
We are very much familiar with lenovo & using labtop also, i was very much happy when new product K3 note was launched & sold by registration, i have registered with my son Keval Patel.
Please resolve my problem or exchange this instrument.
Thanks