How much does it cost to change the motherboard of a mobile phone?

I can tell you for sure that the quality of the V3 line in 25 yuan is better, and the price of the motherboard is between 150-200.

The power supply he said is the power supply module, and the market price is around 50 yuan. You've been cheated. The screen is around 70 yuan, and the camera is 15 yuan, so V3 is over 300. Perfect here, parallel V3 400 yuan money.