Resetting the display module

Doc

If the wattage readout is frozen, stuck on a pattern, or showing a number that doesn't change no matter what's connected, a reset usually clears it without affecting charging or your firmware version.

Applies to

All Liter cables, 1.0 m & 2.0 m

Time required

~1 minute

Difficulty

Beginner

Step-by-step instructions

Disconnect both ends

Unplug the cable fully from both the power source and the device. The display should go dark within a moment.

Wait ten seconds

This lets the display module's chip fully power down rather than staying in a low-power standby state.

Reconnect the host end only

Plug the display end back into a wall adapter, without connecting the device end yet. You should see the display briefly flash once.

Reconnect the device end

Plug the other end into your phone or laptop. The display should now show a live wattage reading instead of the stuck pattern.

Confirm it holds

Let it charge for a minute and check that the number updates normally rather than freezing again. If it does, see Notes below before contacting support.

Do not unplug during an update

If power is lost mid-update, the display will stay dark on reconnect. This is recoverable — see "Display won't light up after a firmware update" in Troubleshooting.

Firmware

Updating your cable’s firmware

Full walkthrough of checking, starting, and completing a firmware update.

Troubleshooting

Display won't light up after a firmware update

Recovery steps if power was lost mid-update.

Hardware

Reading the wattage display

What each display state and flash pattern means.

Warranty

Starting a warranty claim

When a hardware fault is covered, and what to send in.