LED Indicator Colors

The phone’s indicator light uses different light emitting diodes (LEDs) to display different colors during boot-up to indicate which tasks the phone is performing and may flash to report problems. The table below explains the meaning of these colors.




The phone is charging.

Red (flashing)

There is a problem with charging.
See below for advice.


The U-Boot bootloader has started running.

Green (flashing)

A boot-loop in the bootloader.
See below for advice.

Yellow (red/green)

The bootloader has started the kernel but there is insufficient power to continue.
See below for advice.

Blue (flashing)

Indicates a notification message in the notification tray. See Status LED for details

Once the phone has started the operating system, the battery status is shown on the lock screen. When the screen is unlocked, the battery status is shown in the status line at the top of the screen.



Ensure that you use the charger supplied with the phone as this can supply 10 W of power.

A lit red indicator light with no flashing indicates that the phone is charging normally.

If the light flashes red once per second (half-second blink every second), there is a problem with charging, and the charge controller has automatically paused charging. Please read on.

If you are not using the supplied charger then disconnect the charger that you are using, wait until the red light stops flashing and goes out, wait 20 minutes, and then try using the supplied charger.

If you are using the supplied charger or the problem persists when using the supplied charger then the problem could be that the battery is becoming too warm. The charge controller will pause charging when the battery temperature exceeds a threshold that is slightly above 40°C. Use the Usage utility, selecting the Thermal tab, to check the temperature reported for the sensor named bq25890-charger. If the reported temperature is too high then if the ambient temperature is high, try moving the charger and phone to a cooler location.

Other possible reasons that charging may pause are that the battery is missing or faulty i.e. charging has encountered an error of some kind.

Note that there is another flashing red signal viz. very short blinks about every 10 seconds. This means that the BQ25895 itself got warm, which would be normal under prolonged intensive use. The BQ25895 is a battery charge management chip from Texas Instruments (TI).

If the above does not resolve the issue, contact Purism support for further guidance.


A flashing green light is a symptom of the bootloader starting followed by a reset as a result of insufficient power. This is usually the result of a battery charging issue. Follow the steps below to work around the problem:

  1. Hold down the Volume Up button for 5 seconds to enable trickle-charging.

  2. Once the light stops flashing, unplug then replug the power supply.

  3. Let the battery charge for an hour or more.

  4. Unplug the USB cable from the phone.

  5. Hold down the power button for 15 seconds.

  6. The light should appear green.

  7. Plug in the USB charging cable.

If the above steps do not help, try the recharging procedure for your phone:


If the light is yellow, the bootloader is trying to load the kernel but has already determined that there is insufficient power to succeed for one of the following reasons:

  • The battery voltage is low and the USB C cable was not plugged in before the bootloader ran the USB power check.

  • The battery voltage is low and so is the USB charging current.

  • The battery voltage is zero and the USB current is too low.

Try disabling the modem and WLAN by pushing their kill switches in the down positions, towards the center of the phone.

Follow the charging procedure for your phone: