Chosen Solution
So i dropped my phone a while ago and now the wifi and bluetooth overheat the phone to the temperature warning when turned on . this morning the phone rebooted and went into bootloop. itunes shows error 4013. No repair shops in my city can help me and apple asks me to get my phone replaced for too much money. A little research tells me it is a baseband issue but i have no idea how to fix it . Please guide me so i can get this done.PLEASE :(
There is no single solution for Error 4013 on an iPhone 6S. While this error on the iPhone 6 was usually corrected by reprogramming the NAND, on the iPhone 6S the failure is more related to the Baseband IC and more specifically the Baseband PMU. Check all of the voltages and insure the coils are securely soldered onto the board. Replace any loose coils. If that doesn’t work, then check the Baseband CPU, and consider reballing it. While you’re at it, look at the pads in the periphery that have those weak traces, you may want to solidify them. In the end, it could also be a dead BB…
Youll need to research and find a company who does micro soldering close to you. These companies have specialized equipment to find what is being shorted and overheated. They will then replace the filters, caps and so forth to get your phone working correctly. Im not sure where you are located, but Google has some great suggestions from a quick search.
