step 2: Remove the button parts from the skins (You can use your fingernail or something else instead)
step 3: Paste to your controller button and your console be careful. And then use a hair dryer to slight warming it, And use a hard card to squeeze it. Wait about 3 hours before you use it, should be better.
You can repeat the operation many times, If the viscosity decreases, use a hair dryer to soften, It can restore.