K750i charger does not charge

[tc4oo4]

I bought new k750i from ebay and everything worked about some months. Now it happened, that the charger does not charge the phone any more.

I tried another 2 another chargers and everything worked well.

So I polished the connectors a little, but it still does not charge. Electricity should come through the charger.

What can be the problem?

[jaymercado48]

change the battery

[riders4sia]

I bought new k750i from ebay and everything worked about some months. Now it happened, that the charger does not charge the phone any more.

I tried another 2 another chargers and everything worked well.

So I polished the connectors a little, but it still does not charge. Electricity should come through the charger.

What can be the problem?

what do you actually mean by that?