ROG Ally and Legion Go not charging: USB-C power checks
When a Windows handheld will not charge, the usual causes are an under-powered charger, a battery that needs reconnecting or replacing, or debris or damage at the soldered USB-C port. On the ROG Ally, a loose back cover can also stop charging because it exposes a sensor. Check the charger and LED, read a USB meter, then open and check the battery before suspecting the board.
Written by the CircuitScope research team in our own words, from the sources listed at the end, and checked by our moderators.
When a Windows handheld will not charge, the usual causes are an under-powered charger, a battery that needs reconnecting or replacing, or debris or damage at the soldered USB-C port. On the ROG Ally, a loose back cover can also stop charging because it exposes a sensor. Check the charger and LED, read a USB meter, then open and check the battery before suspecting the board.
Difficulty: Moderate · Time: about 60 minutes
Also applies to: Lenovo Legion Go
Symptoms
- No charging indication when plugged in (on the Ally the power LED should be orange while charging)
- Battery percentage does not rise, or falls while plugged in under load
- Charges from one charger but not another
- Device only runs while plugged in
Create a free CircuitScope account to see the full step-by-step guide.
- Every step, photo and measurement in this guide
- Pinouts, expected readings and fixes for the boards you work on
- Alerts when new guides are added