The Asus ROG Ally is a handheld that, to our pleasant surprise, has attracted a decently sized modding community. Recently, we’ve stumbled upon a Reddit post investigating a somewhat common failure mode of this handheld — the microSD card slot going out of order, where an inserted card fails to be recognized, pretty irritating to encounter. Now, it turns out, this is down to a certain model of PTC fuses being failure-prone.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/05/04/rog-ally-sd-card-slot-fix-shines-light-on-ptc-fuse-failure-modes/