@aditya.a.s.singh.18 No, i don't know which part they replaced. When i submitted the phone, they diagnosed and told they were unable to identify the problem and will need some time. Then they asked me for 5 days in which they said any part replacement needed will be done during this duration only. And after 5 days they contacted that i can collect the device.
On the collection day, i was told it was a motherboard problem and they have replaced it.
Before accepting the phone, i will suggest you do all the checkups. I installed Antutu 3d bench there only and tested. On Zenfones you can do hardware test, by opening calculator and typing .12345+= This will open the SMMI test app where all hardware components can be tested, from fingerprint scanner to flip camera to SIM Signal, storage, sensors, NFC, mics and all.
