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Charger won't provide voltage it doesn't support. It won't negotiate it, and if it does then it is broken. If the phone tries to pull too much current, the char
by ianburrell 3y ago
Charger won't provide voltage it doesn't support. It won't negotiate it, and if it does then it is broken. If the phone tries to pull too much current, the charger won't provide it, and either shut down or limit the current.
- Kirby64 3y agoIf you took a cell phone that only accepts 9V or 12V and changed it to think it was permitted to accept 20V, you could easily fry a phone. Charger will happily supply it if you trick the phone side. This would require malware on the phone itself, though. Possibly something quite low level.