Xiaomi 12x motherboard defect

[manol_manolov]

I've used Xiaomi 12x for a year. Its perfect phone for the money, but then, one day it lost radio signal. From every 3 repair shops that i went, they've said, that problem is defect in the motherboard and cannot be repaired. I've learned that other phones have that ussue too.
It reads the sim card, but shows no signal.

 

[JiaiJ]

You did not ask a question.

 

[raydoom]

Its probably the signal chip you should search for a repair shop that specializes in soldering or do it yourself tho its hard you need new signal chip,hot air gun that can shoot 300⁰c air ,flux,solder paste,the solder ball maker thingy its a metal Sheet that has the size of how the chips soldar ball should be and thats it also if you do this inside you will need something under the mobo that will hold it also it doesnt cost that much but its hard