10. Conduct Hardware Test

⚠ Note! Critical update available! Update required before running Hardware Test.
Please close Hardware Test, connect to WiFi, and allow the system to update and return to the Hardware Test.

Preliminary hardware test

Because unsnapping shell pieces is quite difficult, test your work before proceeding to install various covers. To prepare for test, select each number below for instructions.

When ready, run Hardware Test and follow on-screen instructions to make sure that all cables are correctly connected and all joints function smoothly. For any problems, consult troubleshooter table below.

While testing, the robot will move around. Ensure adequate space for it to move freely on table without falling off or colliding with other objects, or place it on floor in open area.

Plug USB-C head into robot and attach other end to charger. Plug in charger. When DX is off and charging, the screen will display percent charged. Charge to at least 40% before powering on first time. A short press of head button will bring the charge percent display back after it times out.

⚠️ Note! If battery is not charged for a prolonged period, it will become completely discharged. In this case, percent charged will not display. Leave plugged in overnight to recharge. To prolong battery life, charge at least every three months.

Long press the "Home" button for 5 seconds to turn on robot.

The hardware test program will automatically run when robot is powered on the first time. Follow instructions on screen and run all tests.

After successfully testing robot, proceed with cover installation.

⚠ Note! Before removing any part/connection cable, please make sure to first **power off** robot.

Troubleshooting

If robot does not work as designed, check the following to attempt to resolve the issue.

1. Assembly-Related Problems
Condition	Solution
Loose screws	Snug up screws with correct driver.
Connection cables disconnect(ed)	Confirm plugged into correct socket and fully inserted.
Connection cables inhibit joint movement or loosen/detach with joint movement	Check cable routing against directions and ensure adequate slack for free joint movement. Manually move each joint through its entire rotation to confirm that it moves freely.
Sensor doesn't work or works intermittently	On touch sensors, check for loose connection cables, particularly red ones affixed with terminal screws. Loose connectors may cause poor PIR sensing performance. Check plugs and ensure fully seated. If PIR sensing is overly sensitive, connection cable may also not be making good contact, or may be damaged. Please contact customer service. 👉 If PIR test responds without motion, please check connections, and check board for cracks/damage. Contact customer service as needed.
Battery doesn't charge	Confirm charging cable and battery connection cable are installed properly.
Robot will not power up	Check battery for charge and all mainboard connectors for proper location and full insertion. If robot will still not power up, please contact customer service by DM through fanpage or group on Facebook.

2. Hardware Test Troubleshooter
Condition	Solution
Robot does not power up after pressing and holding home button on top of head	Battery may be discharged. Charge until indicator turns green. Home button may not be fully depressed; remove protective film and long press again. Not yet fully powered on. If no animation appears after NUWA logo appears, press and hold the button again for at least 5 seconds.
Robot motion does not match screen simulator or does not move at all	Confirm connection cables on the head mainboard are firmly seated. Confirm affected joints' servo motor connection cables are connected correctly and connectors fully seated with adequate cable slack for full joint movement.
Bottom wheels not working	Confirm connection cables on head mainboard and connection cables on servo motor ID11, ID12 are firmly seated and not damaged.
LED doesn't illuminate	Check affected LED for correct cable connection, fully seated connectors, and tight terminal screws.
Touch sensor fails test	Trace cable of affected sensor and check terminal screws for tightness and good contact between ring and terminal.
PIR sensing test fails	Confirm connection cables on PIR sensor are firmly seated and sensor board is not damaged.

If you are unable to resolve the issue using the troubleshooter, please contact us.
We’ll try our best to help you through it.

Cover and Connection Cable Removal

⚠ Notice! Before removing any part/connection cable, please make sure to first **power off** robot.

Cover Removal

Cover removal is divided into chapters by assembly. DO NOT ATTEMPT DISASSEMBLY BEFORE READING INSTRUCTIONS. Parts are easy to damage if force is not applied correctly.
👉 Please read: Disassembling the robot

Connection Cable Removal

To remove Connection Cables, please, see gif below. Hold all wires together and **evenly** pull straight out to unplug Connection Cable. Note how gif shows wire rolled slighty over fingertip to exert upwards pressure where space permits.

← 9. Install Assembly | Attach head