Nokia E7 charger not supported Problem Solution Jumper Ways
Nokia E7 Charger not supported, Nokia E7 Not Charging.
Replace the charger and battery to diagnose charger not supported fault in nokia E7. If fault can not be solved then dis assemble the mobile phone and check mother board for water damages and broken parts.
If you see some carbon and rust make it clean with electronics cleaner and apply heat to make it dry.
Change the 47k resistance as given in above diagram to solve Nokia E7 charging not supported solution in it.