Speaker Volume Buttons Replacement

I have a pair of Sonic Gear speakers gifted by a dear friend some years ago. After a year serving my ears, the volume buttons started to go wild. The volume will suddenly be increased to maximum levels by itself. For this I had retired them since then, until today I decided to have a look to see whether I can fix the problem. When I checked it, even the Vol- button had failed, both the Vol+ and Vol- button cannot register any pressing action anymore, they failed before reaching 1000 pressing? If I am correct push buttons can last from 100,000 to 1,000,000 times of mechanical life.

Here goes.

The back view of the main (right) speaker:

Opened up to see the PCB & the two dead switches:

Started with removal of the dead switches:

Here were the replacement switches I chose (I did not have much choices). I planned to use the diagonals terminal of these switches to align the switch shaft to the center of the footprints, hence 2 of the terminals have to be cut.

After some usual soldering job, the results were satisfying:

The top view, we can see that the shaft is near the center. The switches will have no problem getting pressed.

Since the replacement switches are higher, the buttons have to be modified next. Luckily it was an easy process to remove one layer of the soft material used to give a premium feel when the buttons are pressed.

And the testing showed the replacement switches worked perfectly:

The truth is, I messed up the terminals of the switches which I was so familiar with, I have to redo the replacement job once more to arrived at the correct mod. You can see that the orientation of the switches in the last picture are different from the previous pictures, and the shafts are exactly on the center now.

Case closed.