nokia E90 shows charging but doesnt power up
 

hi i have a nokia e90 that indicates its charging when charger is plugged in on both lcds but doesnt switch on.i changed flex cable and flashed with latest software.phone was sent beyond repair from nokia service centre for liquid damage.i never actually seen any residue or corrossion on pcb.is there perhaps a emi filter or component related to the e90 powering up.any good ideas appreciated.thanx in advance:)

I have same problem...you solved your phone?

just check the connector in top position (near display )....top connector first point is connected with switch point .. anothor switch point is ground .. checked working fine

try soft ware
and then will work