A friend of mine showed up to my workshop and asked me if I repair electric shavers and since I never opened one before, I told no but I am willing to try if he give me a chance. It turned out that electric shavers are very easy to fix. Here is the story.
This shaver is Philips made. It has an external power adaptor. When I plugged into power, the charging light came on indicating that it was charging. I let it charge for about an hour. I hit the power button on the shaver and it felt that there was no power button beneath the rubber cover. So I took it apart.
There were only two star screws on this shaver. One was seen clearly on the lower area of the shaver, the other was hiding under the hair trimmer part. You have to slide the hair trimmer out to see it. The moment I took these screws off, the inside of the machine was exposed.
It was not a complicated design shaver. There was one board and a white plastic holding the two batteries on it and the main motor that runs the heads. There were two metals holding the motor; their function was to hold the motor in place when operating the shaver. I unhooked these two metal parts and the motor and the main board came off.
I looked where the button was and saw that the main power button was intact but the rubber part that is pushing the power button was broken. I used a small tiny drop of super glue and the rubber part was working again. When I pushed the power button, the machine came on but not for a long time. Although I charged it for an hour, the charging was not enough to keep the shaver running.
That is an indication of bad batteries. I replaced the two batteries with new ones and I charged them for more than 8 hours (factory recommendation). It worked nicely and I called the customer who came fast to my shop and very happy to see his electric shaver alive once again.
Conclusion: Never be afraid of trying new things. If you encountered a new machine that you never worked on before, Open it, study it, and if you can fix it, do that, if not, just close it and send it back to the customer. Just be faithful in your work and tell the customer that you never worked on these things before, and if he allows it, go head and work on it.