BoarDray
Fault · Power

Constant current draw, short or overheating

The power supply shows current draw without pressing anything, goes into protection, or the board heats up and drains the battery.

View the guide steps online with your BoarDray account.

Covered on 180 models

  • Samsung94With guide
  • iPad43With guide
  • iPhone43With guide

How to approach it

Current draw with the board off always has a culprit: a blown capacitor, a shorted chip or a leak. First identify the affected line in diode mode (the one reading near 0 or far below the board file), then locate the component by injecting a low voltage with a current limit: the one that heats up first is the suspect. Never inject more than the line's nominal voltage.

Other faults in Power

Where to find it

  • By modelEach model lists the guides that apply to it.
  • By familySamsung, iPad, and iPhone already have the guide.

Models where it is covered

Samsung · 94 models

iPad · 43 models

iPhone · 43 models

See inside every board

Sign in to open the Constant current draw, short or overheating guide next to the schematic and board view.

Open it in BoarDray