Cat S60 Boot Loop
If the phone is semi-responsive, press and hold the Power Button until the "Restart" option appears. This simple "nudge" can often clear minor system flaws causing the loop.
The Cat S60 is aging (released 2016). The internal eMMC (embedded MultiMediaCard) flash memory has a finite lifespan. When it starts failing, data corruption causes boot loops. This is the most catastrophic cause. cat s60 boot loop
Selling a boot-looping Cat S60 for parts can recoup $30-$50. The thermal camera module alone is valuable. If the phone is semi-responsive, press and hold