Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. In my opinion you had fractured your penile shaft, these are the classic symptoms of penile fracture which includes pop sound followed by bruise over penile shaft with loss of erection and burning sensation. I would recommend you to seek medical attention as soon as possible because penile fracture is a surgical emergency as it may lead to erectile dysfunction and permanent deformity in the penis. Hope I have answered your query. Let me know if I can assist you further.