Try replacing the WIFI board, because In older game systems if this stops working it causes boot issues. I also had this issue and it is extremally common on model rvl-001 due to the card overheating: [guide|3457] (also replace the thermal paste on the CPU and gpu, while you are at it. i used this thermal paste: https://www.microcenter.com/product/600294/corsair-tm30-performance-thermal-paste