Dead switch, 15V 0.5A, BQ replaced and short around MAX77

Nintendo Questions
82

Thats the one :+1:

Yes, best practice is to reball anything in which you can’t see the balls from above IE: any BGA IC, and worst case general rule of thumb is reball anything which has > x4 balls otherwise you risk the chip slanting/skewing and shorting higher voltage lines to lower and destroying things elsewhere.

You can reball the IC from a donor with stencils and solder paste - just ensure that the resulting balls are all an even height to one another. Or you may be able to find this chip new preballed or used preballed :slight_smile:

Just be shure to shield the speaker connector during reflow

83

Thanks for the tips. I will go ahead and order a preballed one just to be safe.

I will update once I receive and replace the chip.

84

Any update on this @rapiteu ?

85

Should we understand that due to the damaged LCD connector, the backlight was not turning ON? I thought they were not really related. I had a lot of situations where backlight was ON while screen was totally OFF.