Micromax Informatics — on - off issue and a message display unfortunately app centre has working stopped

Address:

AKS CARE, D-1/C/001,Sec- C, LDA Colony, Kanpur Road, Krishna Nagar-Lucknow, Lucknow, Uttar Pradesh, 226011

Sir/Madam,
I have a mobile "Micromax nitro E311". This mobile has ON/Off issue and a message display "unfortunately app centre has working stopped". For this issue I contacted your service centre at AKS Care, D-1/C/001, Sec-C LDA Colony, Kanpur Road, Krishna Nagar, Lucknow-226012. Your engineer diagnosis and observe problem in main FPC and software update . At that time, both items are replaced @Rs.1745. But next day same problem is arise, it means problem arise from software side not hardware.i have strong objection in this matter.
SO, I requested that please go through the subject as early as possible.
With regards
B.L.Meena
[protected]
[protected]@gmail.com