Is my Motherboard broken?
My LG Nexus 5 was shattered completely due to fall from height 1.5 years back. Recently, I plugged it to a charger and it could switch on but nothing was visible due to broken screen except for background white light. Hence, I bought the LCD, digitizer, Frame assembly from Aliexpress.com and decided to reassemble it myself.
When I opened up its components, few pieces fell off from the motherboard and one piece from rear-facing camera was missing and 3G antenna wire has broken off from its connector. As a noob, I just glued the pieces onto motherboard and reassembled everything. Then plugged it into the charger but haven't seen any action in past 30 minutes.
I also tried reconnecting the previous display to confirm if the replacement I have bought is faulty or not. But it didn't light up either.
Have I broken my motherboard? Can it be repaired by soldering or sth?