Question Wiimote not turning on

[Rocoloco321]

My wiimote one day just stopped working, i noticed that when I apply pressure on this chip, sometimes it works

 

[JacksonS]

Can you take a clearer picture? It's hard to tell what that component might be since most Wii Remotes are different.

 

[Aurelio]

Looks like a crystal oscillator to me. Can you read its label? It could be that its solder joints got loose maybe due to a drop or something like that.

 

[Rocoloco321]

E X3700
BA7XND

 

[Aurelio]

E X3700
BA7XND

Might be one of the gyros: https://kve.se/km/file/product/pdf/XV3700_E114.pdf. Although it's weird that without it it doesn't work at all

 

[JacksonS]

@Aurelio I think you are right, that is almost the same sensor found in the Motion Plus accessory.

The pressure-sensitivity may be in a nearby passive component rather than the gyro sensor. Or the gyro sensor sensor has a short in it and pressure somehow relieves it. Either way, I think something is creating an unwanted bridge, maybe between 3.3V and GND.

 

[Rocoloco321]

Noticed that if i make pressure in the bluetooth (broadcom chip, under the speaker should be ) it turns on

 

[Aurelio]

Noticed that if i make pressure in the bluetooth (broadcom chip, under the speaker should be ) it turns on

It's possible that by reflowing the chip you might fix this then. Do you have an hot air station?