Here is the complete charging solution and charging ways/track of Lava Arc22. The below is the PCB or diagram of the charging lines for the phone, if the phone charging connectivity is not good then apply jumper as shown in the image below. If still the phone is not charging then you have to change the Charging IC of the phone.
First check the voltage in charging connector, put charger and check the voltage, it its OK then check the below charging tracks.
|Lava Arc 22 USB Charging Ways|