How to repair Philips Sonicare DiamondClean suffering from poor vibration on pressure

In this video, I share how to fix my Philips Toothbrush that isn&vibrating properly when pressure is applied. After this fix, it seems to work and I can use it normally and saving myself from buying a new toothbrush! All you need is a adjustable plumbing pipe wrench (or anything that can fit and squeeze the sides) and a flat-head screwdriver. This video can also be used to see how you can open up a Philips Sonicare DiamondClean toothbrush for other reasons, perhaps changing the battery as well. Chapters 0:00 - Showing the problem 0:55 - Removal of backplate 4:55 - Taking out of the casing 6:02 - Explanation of internals 07:45 - Attempt of repairing 10:15 - Putting it back together 12:33 - Testing... 13:28 - Final reassembly 13:46 - It works!