iPhone 5s not charging if battery fully drained – looking for proper solutions of iphone problem

Hello,

my iPhone 5s charges normally if the battery is not drained. However, if the battery is fully drained to zero the phone will not charge, which the only way to turn the phone on is by replacing the battery every time the battery gets drained to zero.

– ive replaced the battery, issue still persists
– replaced charging connectors, issue still persists
– took it to a repair shop and said that there is no detailed schematic diagram for iPhone 5s yet released and the best solution is to find logic board replacement.

your to be helped is appreciated.

thanks.