After replacing the battery, the iphone5 has a storage error, the capacity display is zero, the APP flashes back, and the call record is lost!

First of all, your top priority is to connect your mobile phone to the computer and see if you can back it up. If you can back it up, back it up first, and then restore it to your mobile phone with iTunes. It may be that changing the battery caused the system problem, which can be repaired by restoring the system.

If the recovery system is still the same, then it is concluded that there is something wrong with the mobile phone hardware. It may be that the battery you replaced is fake and the voltage is unstable, which leads to the damage of mobile phone components and can only be sent for repair. I hope it's not the motherboard.