Chosen Solution

I dropped my phone there is no physical damage to the phone but now it doesn’t turn on has black screen

Several things could be causing this issue. The drop could have caused the flex cables to partially disconnect or the drop may have damaged the screen assembly. This is easily repairable if you ’d like to try it yourself. Just follow this guide. There could also be damage to the logic board but you need to eliminate the components first before going that route.