Kind of vauge question, but when facing certain hardware issues (where turning it on/off does not work) you may find that when you return to the device, albeit it however long, the problem seems to have disappeared.
Why is this?
In: 0
It’s often heat. Things expand when hot, different materials expand different amounts, and sometimes a crack forms after many cycles and something which works when cold stops working when two parts lose contact from expansion. The device stops working, and needs to cool down.
Cooling can also become worse from dust and dried-out thermally conductive compounds, meaning a device which worked fine now simply gets too hot, or either malfunctions or shuts down in order to protect itself.
I have a TV which does the former (I got it for free to see if I could fix it, but I have no tools or experience with BGA chips) and a projector which does the latter (until I open it and vacuum out the dust again).
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