Samsung GT-E2652 home Back Key Hardware Solution
Here is the hardware solution for Champ Duos E2652 power button problem:
When it comes to hardware, the very first thing that you need to do is to re-solder power button strip and check its on-board connector for any loose contacts.
If the above method not working replace new power button strip.
Check power switch connection line paths accross to each components where it is being connected.
If any of the call Menu send track missing then make a jumper.
Samsung GT-E2652 Back Key Not Working Problem, Send Key Jumper, Menu Key Ways
Samsung Champ Duos E2652 Call Button Ways Jumper Solution,Send Back Button Problem Solution.