4CH.
Four views.
One support hub.
Setup and troubleshooting for the Rexing 4CH camera. The linked official guide uses the earlier RW4 designation; this support page uses the current 4CH model name.
Download manual ↗Key camera controls
HOLD OK
Enable Wi-Fi and read the network details on screen.
HOLD MENU
Open playback, then select a recording with UP / DOWN.
MENU × 2
With recording stopped, open Setup Settings to format the card.
Prepare all four views before driving.
Memory card
The guide specifies Class 10 / UHS-3 or faster microSD, up to 256GB. Turn the camera off before inserting or removing a card. The package includes a 32GB card.
Mount and connect
Use the supplied suction or adhesive mount. Connect the rear camera to the rear-camera port and use the supplied Type-C car power cable. Route cables clear of airbags and vehicle controls.
Format in the camera
Back up important files first. Stop recording and press MENU twice; select Format with UP / DOWN and confirm with OK. The guide labels the recording control inconsistently; use your camera’s recording control and verify the recording indicator has stopped before opening settings.
Use the network shown on your camera.
Connect your phone
Hold OK to enable Wi-Fi. Join the displayed SSID using its on-screen password, then open Rexing Connect and select Connect. Remain connected even if your phone reports no internet.
Download your clips
Use live view and downloads in Rexing Connect. Hold OK for two seconds to exit Wi-Fi. For large transfers, turn the camera off and copy files using a card reader.
Review every view
Hold MENU for playback. Select the front, side/cabin and rear recordings and confirm with OK. Verify each connected camera has a usable saved clip, rather than checking only the screen layout.
Match the power accessory to the feature.
GPS is accessory-dependent
The guide requires a compatible GPS charger or Type-C GPS Smart Hardwire Kit, sold separately, to log speed and location. The GPS icon changes when a signal is acquired.
Parking requires a Type-C kit
Use a compatible Type-C Smart Hardwire Kit or Type-C GPS Smart Hardwire Kit for vibration-triggered parking surveillance. Leave Parking Monitor disabled when the required kit is not connected.
Gravity sensitivity and battery cutoff
The guide recommends High sensitivity for parking, and Low during normal driving when parking surveillance is unused. Frequent locked events can fill the card. A hardwire kit’s low-voltage cutoff can stop power and parking recording until vehicle battery power is restored.
Check power, storage and connections.
Rear view missing
Turn off power, reseat the rear-camera cable at both ends and restart. Check the saved rear clip as well as the display.
Card full or recording stops
Preserve needed footage, review locked files and format in the camera. Test a supported high-endurance card if errors recur.
Wi-Fi will not connect
Confirm the network and password on the camera screen. Keep the phone on that network, check app local-network permissions and disconnect another phone if already paired.
Resources for your 4CH.
Rexing apps
Find Rexing Connect and playback resources.
Confirm hardwire compatibility
Send Support your camera and kit labels before installation.
Warranty information
Warranty and return information →
Still need a hand?
Send Support your model label, firmware version and a clear description of the issue.