Yuplaygod — service center changed my motherboard

Address:

380015

I have a complaint regarding micromax (Yureka) service center located in vastrapur, ahmedabad – dev enterprises. I purchased the phone 2 years back from amazon which was working perfectly. My screen got damaged and hence i went there on 2nd jun 2017 because that was nearby my location. I was charged rs. 3350 for this. After 15-20 days they did some modifications on my motherboard and said previously somebody have done some sort of modifications and it needs some correction and software updates because phone is not starting properly. They removed they cynogen software, put android 4.4, and did handover to me. After reaching home, i realized that my phone was completely damaged, earphone jack was not working, calling problem, speaker problem and started restarting again and again. They agreed on repairing (4th july’17). After reaching them repeatedly, they gave my phone by today (On 24th july’17) and again the operating system is 4.4 and phone is not at all working. I don’t know whats the problem as i am not a technical person for this but my phone is completely out of work now.

I contatced yureka support 5 days back but no response.