Fixed: iPhone not responding in sleep mode when getting incoming calls

Right now, there are few solutions to fix iPhone not responding in sleep mode when getting incoming calls. The general repair process of a repair technician is to take out the motherboard, check PMU and baseband CPU, and then replace or re-solder the faulty component. The whole repair process is complicated and difficult. The video below will show you a brand new ‘signal borrowing’ solution to fix the problem quickly and efficiently.