If you don't want to repair the broken LED bulb, but want to make other small LED bulbs light up, you can use one of the following methods:

Method 1: short the broken LED with a small copper wire and light other LEDs.

Method 2: According to supplementary information, LED units may be connected in series, so a broken LED will cause the whole lamp not to light. You can cut off one foot of the black LED, and then short-circuit the tin points of these two feet at the bottom, and other LEDs can be lit. However, it should be noted that the overall current will increase, the LED bulb will be brighter, but the life will be shortened.

Method 3: This is a professional repair method, that is, replace the broken LED monomer. Weld the broken LED with a professional soldering iron, and then install an LED monomer with the same specifications and parameters. Pay attention to the specifications and working parameters of LED when replacing, such as overall size, voltage, current, luminous brightness, etc.