Not every weak-taste fix is necessary for every device. Here's what you can skip safely:

• Charging: A low battery doesn't cause weak flavor on most draw-activated devices. If the battery is dead, you'll get no vapor at all, not weak taste. Don't assume charging will fix it.
• Firmware updates: Unless your device has an app and the manufacturer pushes updates, this isn't a thing. Skip it.
• Disassembly: Never open a sealed device to 'clean' the inside. That's not safe and it voids any warranty. Stick to external cleaning.