ROG5 Motherboard Replaced are Optimized or Not?

[Shivam_G]

Please tell us some basic information before asking for help:
Model Name: ZS673KS
Firmware Version: LATEST
Rooted or not: NOT
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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My ROG5 Wifi & Hotspot died just after completing warranty period. I have submitted by phone in service center for repairing & they will change the motherboard to fix this issue. "After repairing there won't be any guarantee that this problem will not occur in future, also your device won't be performing well as its used to be", as per your service center.
My question here is that the Motherboard which they will be using is optimized one or it will be the same as old one "manufacturing defected"?
HERE I WANT TO ASK ASUS WHAT IS THE ACTUAL REASON FOR WIFI & HOTSPOT DYING FOR THOUSANDS OF USERS? IS IT THAT YOU ARE USING CHEAP COMPONENTS OR EXPLOITING USERS FOR MONEY?
Even after paying for repairing huge amount for servicing there won't be any guarantee on this device then what's the purpose for repairing it.

[harishkumarji55]

after the change of motherboard they may add additional warrenty such has 3 month for motherboard after that no warrenty to claim 

[harishkumarji55]

u have got ur mobile by 7 days but i have been keep on waiting still now 13 days over no calls form f1 asus no mail from asus they said the spare part is not received yet 

[harishkumarji55]

u gave to f1 solution asus team how many days does it took time to change the motherboard and when u got back ur mobile 

[Deepak1234]

For me it took exactly 7 days. Because all F1 Solution service center of Asus are not authorised to change Motherboards. My nearest F1 Solution has the authority. That's the reason I got it a bit early.

[Sriraman]

They told me the same, like u have 70 % chance of getting it repaired. Or else, I have to survive only with the mobile data. Is your wifi in working condition now?