P1 Power & Connection: No Power, PC Won't Connect
You are seeing connection or power problems, sudden stops, weak Wi-Fi, or USB drive errors.
Power off before removing the laser module to inspect the window lens or unplugging and reinserting the USB drive. If engraving reflective material, first coat its surface black to avoid damaging the laser module. Frame before engraving to check for frame collisions.
¶ PC Connection Fails
What you see: A connection failure occurs when connecting to computer software.
Check in this order:
- Check the panel indicator: Steady green is normal; red indicates an alarm state — check whether the enclosure door is closed properly, whether a limit switch is stuck in a triggered state (move the laser module to the center and try again), whether the USB key is plugged in, and whether the door limit switch is functioning normally. If you determine the limit switch is faulty, you can temporarily disable door detection in the software/app to keep working (please be careful with safety once disabled).
- Check your operating system: On a Mac, you cannot connect directly via the Type-C port — a USB hub is required to connect via the A port.
- Check the baud rate: LightBurn requires the baud rate to be set to 460800, or you can import the P1 configuration file.
- Check the COM port: Check Device Manager to see whether the engraver's serial port appears (plug/unplug the Type-C cable to observe the change). Install the driver if it's not recognized or shows a warning icon.
- Try a different cable and port: Try a different Type-C cable or computer COM port, or try switching to AtomStack Studio.
- If none of the above resolves the issue, this indicates a motherboard fault requiring replacement.
Driver downloads: Windows driver | Mac driver
Still not fixed? Contact support with the details listed in What to send support.
Related problems: App Connection Fails · Power-On Fails · Stops During Operation
¶ App Connection Fails
What you see: The mobile app connection fails.
Check in this order:
- Check Wi-Fi signal strength: If the signal is weak, refer to the "Weak Wi-Fi signal on the P1" section.
- Check no other device is occupying the connection: If another device is already connected to the engraver's Wi-Fi, your current phone won't be able to connect.
- Try a different connection method: P1 supports Wi-Fi, Bluetooth, and hotspot connection modes — try switching between them. See the P1 app connection tutorial video.
Still not fixed? Contact support with the details listed in What to send support.
Related problems: Weak Wi-Fi Signal · PC Connection Fails · Power-On Fails
¶ Power-On Fails
What you see: The machine fails to power on normally.
Check in this order:
Indicator light shows steady red:
- Check whether the enclosure door is closed; check whether the hall sensor cable is loose by bringing a magnet close to the hall sensor to test whether it turns green. If the magnet can trigger it, the hall sensor cable is not properly connected or the sensor itself is faulty — see the "P1 door-opening detection function fails" section.
- Check that the laser module hasn't been moved to the extreme edge (which would continuously trigger a limit switch) — move it back toward the center and try again.
- Check that the enclosure's limit switches are not damaged: gently press each limit switch's lever to test whether it triggers an alarm sound.
- Check that the USB key connection is normal: gently touch the USB key to test for a poor connection — try unplugging and reinserting it, or pressing the plug in more firmly.
- Check the firmware: copy the firmware to the root directory of a USB drive, insert it into the engraver, and reflash.
- If none of the above resolves the issue, consider a motherboard replacement.
Indicator light shows steady green: The indicator is normal but it won't connect — please refer to the "P1 mobile app connection fails" section.
Indicator light alternates red/green with a beeping sound: This typically indicates a poor USB key connection — remove and reinsert it, or press the connector in more firmly.
Indicator light does not light up at all:
- Check that the power supply is normal: check whether the adapter's indicator light is on, and use a multimeter (DC mode) to measure whether the output is 20V–25V (below 20V indicates an adapter fault).
- Check that the power switch is functioning: disconnect power, open the top cover, and use a wire to briefly short the two power switch leads, then power on again to test — if it powers on, the switch is faulty.
- If shorting the switch still doesn't power the machine on, this indicates a motherboard fault requiring replacement.
Still not fixed? Contact support with the details listed in What to send support.
Related problems: Door Detection Fails · App Connection Fails · Stops During Operation
¶ Stops During Operation
What you see: The machine suddenly stops during operation.
Check in this order:
- Check adapter output: Use a multimeter (DC mode) to check whether the adapter output is 20V–25V.
- Check the panel indicator: Observe whether a red alarm appears, and troubleshoot according to the alarm prompt.
| Alarm Prompt | Possible Cause | Troubleshooting Steps |
|---|---|---|
| Machine restart prompt | Motherboard fault, power adapter fault, or unstable mains power | ① Re-engrave to see if it recurs; ② Replace with a matching 24V 3A adapter; if it still recurs, this indicates a motherboard fault |
| Alarm 1 triggered, or "out of bounds" prompt | Not touching the frame: limit switch fault. Touching the frame: engraving file too large | ① Follow the software prompt to identify which limit switch was triggered; ② Inspect the limit switch's appearance; ③ Unplug/replug or manually trigger it to confirm whether it's faulty |
| Disconnection prompt | Type-C cable, COM port, or motherboard fault | ① Try a different Type-C cable and COM port; ② Install the computer's serial port driver; ③ If it still can't connect, this indicates a motherboard fault |
| No alarm prompt at all | Motherboard firmware or motherboard fault | Reflash the motherboard firmware; if this still doesn't resolve it, this indicates a motherboard fault |
Still not fixed? Contact support with the details listed in What to send support.
Related problems: Power-On Fails · PC Connection Fails · Software Alarms
¶ Weak Wi-Fi Signal
What you see: The Wi-Fi signal is weak.
Check in this order:
- Check the Wi-Fi cable: Open the top cover and check whether the Wi-Fi antenna has come loose from the motherboard or is not properly connected — reconnect it.
- Check signal strength: If the signal remains weak after reconnecting, the Wi-Fi antenna itself is faulty — contact customer service to arrange a replacement. See the P1 Wi-Fi antenna replacement tutorial video.
Click to play video on YouTube
- Check the motherboard: If there is no Wi-Fi signal at all, this may indicate abnormal motherboard firmware or a motherboard fault — try reflashing the matching firmware first; if this doesn't resolve it, a motherboard replacement may be needed.
Still not fixed? Contact support with the details listed in What to send support.
Related problems: App Connection Fails · PC Connection Fails
¶ USB Drive Not Recognized
What you see: The machine cannot recognize the USB flash drive.
Check in this order:
- Reinsert it: Remove the USB drive, power off, then reinsert it and test again.
- Check the USB drive is functioning: Test it in a computer to confirm it can be recognized normally — if not, the USB drive itself is faulty.
- Check the USB drive's format: If prompted to format it, select the FAT32 format.
- Try a different USB drive: Insert a different USB drive into the machine to test.
- If the computer recognizes it and it has been formatted, but the issue persists, this indicates a fault with the motherboard's USB port, requiring a motherboard replacement.
Still not fixed? Contact support with the details listed in What to send support.
Related problems: App Job USB Error · Firmware Update Fails
¶ App Job USB Error
What you see: Mobile app engraving is interrupted with an error that the USB drive is not inserted.
Check in this order:
- Confirm it's properly inserted: Power off, then unplug and reinsert the USB drive.
- Check the USB drive's format: If prompted to format it, select the FAT32 format.
- Check the USB drive is functioning: Test it in a computer to confirm it's working normally.
- If this doesn't resolve the issue, the USB drive may be damaged — try replacing it.
Still not fixed? Contact support with the details listed in What to send support.
Related problems: USB Drive Not Recognized · App Connection Fails