Step 26 of 29
Switch to camera mode
On the expansion board, slide the small switch from upload to cam.
Check: Switch is on cam.
Common mistake: Leaving it on upload. The app cannot connect.
ELEGOO Smart Robot Car V4: the app will not connect
Researched by Riley Hart · based on ELEGOO Smart Robot Car V4 build guide and docs · we may earn a commission
Short answer
The board switch is on upload, or the phone left the car's Wi-Fi. Start with this: Slide the small switch on the expansion board to cam.
Why it happens
The board switch is on upload, or the phone left the car's Wi-Fi.
How to fix it
- Slide the small switch on the expansion board to cam.
- Join the ELEGOO Wi-Fi again and stay connected when it says No internet.
- In the app, tap the link icon in the top right.
Check the step it comes from
Still stuck?
Open step 26 →Show the AI coach a photo
Open step 26 in the free build tool, tap Stuck and take a photo. The coach checks it against that exact step and tells you what to change. 3 free questions per kit.
Other ELEGOO V4 problems
No camera pictureThe camera cable is loose or the camera board is upside down.The car spins in circles or drives backwardMotor plugs are in the wrong ports.The remote does nothingThe plastic tab is still in the remote, or the battery is low.It misses the lineThe line sensor needs contrast and the right threshold.Nothing turns onThe battery is flat or switched off.A wheel wobbles or falls offThe wheel went on at an angle or the screw is missing.
ELEGOO Smart Robot Car Kit V4.0About $66 to $80. Every part and tool in one box.
Check price on AmazonSources
Drawings by robotsforthat. ELEGOO Smart Robot Car V4 is a trademark of ELEGOO. We are not affiliated with ELEGOO.