To upgrade the firmware on your P1 Meter, please follow these steps: Quickly press the button in the center of your device 5 times within 3 seconds to enter upgrade mode. During the upgrade, the blue indicator will pulsate (fade in and out) every second. If the upgrade is successful, the green indicator will stay on for 5 seconds before turning off. If the upgrade fails, the blue indicator will remain solid for 5 seconds, then turn off. Please refer to these indicator lights to confirm the upgrade result.

If you have any questions, feel free to contact us for further assistance.