i am working with raspberry pi suddenly my terminal got stuck and after i dis-connect my raspberrypi and again connect it ;but it not detect my raspberrypi sd card and i found that 3v3 pin is not providing any output and check with multimeter it show 0v,but in 5v pin i got 5v. I also see this kind of problem in my office,3 raspberrypi devices fail in that way.Anybody told me how to rectify this problem. is my device can able to repair?
It is not economical to attempt a repair. It will be cheaper to buy a new Pi.
If the 3V3 power circuitry is broken it might have caused further problems downstream. The SoC may have been destroyed.