FIFISH V6 EXPERT Support
Find manuals, video tutorials, APP downloads, troubleshooting, and FAQs for FIFISH V6 EXPERT.
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First Use Guide
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Connection Guide
Control Guide
Sensors Calibration Guide
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What APP do I need to use FIFISH V6 EXPERT? Where can I download it?
You need the FIFISH APP to operate the V6 EXPERT drone. It provides the live video feed, camera controls, dive logging, community and all advanced features.
You can download from:
1. Search "FIFISH" on the APP store: Apple Store for iOS devices and Google Play Store for Android devices
2. Download from QYSEA websites
3. Scan the download QR code on the user manual or the tutorial videos
How do I set up and connect the FIFISH V6 EXPERT before diving?
Ensure both the V6 EXPERT and the Remote Controller (RC) are fully charged before use.
Step 1 — Hardware Connection:
- Plug the tether (3.5 mm plug) into the remote controller.
- Plug the other end of the tether into the V6 EXPERT's communication port (Ensure the safety loop is secured to the tail wing).
- Long-press the power button on the Remote Controller to turn it on. The ROV will power up automatically once connected to the active controller.
Step 2 — Software Connection:
- Launch the FIFISH App on your smartphone or tablet.
- In your device's Wi-Fi settings, connect to the network starting with "FIFISH_RC_...". (Default Password: 1234567890).
- Return to the APP and tap "Go Dive" to access.
Step 3 — Pre-Dive Calibration:
- Perform sensor calibration as prompted by the APP and verify that the live video feed is working.
- Gently lower the ROV into the water (DO NOT throw it).
For detailed operation guides, please refer to the user manual and the tutorial videos.
How do I connect my device to the Remote Controller?
The Remote Controller connects to your smartphone or tablet via Wi-Fi.
Wi-Fi Name: Look for the network starting with "FIFISH_RC_..." in your device's settings.
Default Password: 1234567890.
What do the A, S, and C modes on the Remote Controller represent?
A is Attitude mode, S is Sport mode, and C is the Combination mode.
A Mode / Attitude Mode
A Mode is designed for beginners. The ROV will not roll in A Mode. The ROV will stay in same depth moving when depth holding is ON. Even with pitch angle, the depth will be the same.
S Mode / Sport Mode
S Mode is designed for skillful pilots. S Mode will enable the rolling freedom, so you will access all 6 degree of freedom of V6 Expert. Controlling and moving based on the FPV (Frist Person View), do not operate in third person view. The ROV will only stay in the same depth with no command input, when depth holding ON.
C Mode / Combination Mode
C Mode activates the head tracking controlling via the VR Goggle, which allow pilot to use the VR Goggle to pitch, roll and yaw. C Mode delivers the intuitive control and immersive experiences. C Mode supports head tracking and remote controller working together.
Accessories Attached
The right wheel will ONLY be working in A Mode or C Mode for motor driven accessories. For example, robotic arm, water sampler, robotic fish clamp, and compass ruler, and sludge sampler etc.
How do I operate the FIFISH V6 EXPERT robotic arm?
The robotic arm (available as an optional accessory or within the V6 EXPERT Arm Pack or Extended Range Arm Pack) is operated directly via the remote controller.
Installation (Ensure ROV is Powered Off):
- Attach the robotic arm bracket to the designated mounting hole on the underside of the V6 EXPERT body.
- Secure the arm’s connector cable to the Q-Interface port.
* Note: For detailed visual guidance, please refer to the User Manual or the official tutorial video.
Operation (Ensure ROV & Remote are Powered On):
- Switch the control gear to A-Mode (located on the top-left corner of the remote controller).
- Rotate the right dial (located on the top-right corner of the remote controller) right to open the claw and left to close it.
How do I start a live stream of my underwater mission?
You can broadcast live video directly to YouTube, Facebook, or other platforms using the FIFISH APP.
Step-by-step Guide:
- Obtain a Stream URL and Stream Key from your YouTube or Facebook account.
- In the FIFISH App interface, tap the "LIVE" icon.
- Paste the Stream URL and Stream Key into the designated fields.
- Select your preferred Live Stream Quality (High, Medium, or Low).
- Tap “Start Live Streaming” to begin.
Notes:
1. This feature requires an iOS device (e.g., iPhone or iPad with cellular capability).
2. Live streaming consumes significant cellular data. Please ensure your data plan has sufficient allowance.
3. Stream quality and stability are highly dependent on your local 4G or 5G network speed.
How do I maintain FIFISH V6 EXPERT after each dive?
Proper post-dive care extends the life of your V6 EXPERT. After Every Dive:
- Connect the V6 EXPERT with remote controlller.
- Submerge FIFISH V6 EXPERT in clean freshwater (especially after saltwater use).
- Connect the remote controller, open the FIFISH APP and go to "Help" > "Maintenance/Thrusters", and press "Start".
- Motors will run slowly for approximately 10 minutes to flush out salt and chlorine.
- Dry in a shaded, ventilated area. Avoid direct sunlight.
How should I store FIFISH V6 EXPERT for long periods?
For long-term storage of FIFISH V6 EXPERT:
- Battery Level: Maintain battery charge at 50%–60%.
- Recharge Cycle: Charge the battery every 90 days to prevent deep-discharge degradation.
- Storage Environment: Keep in a cool, dry place away from direct sunlight.
- Pre-Usage: Before your next dive, fully charge V6 EXPERT and perform a sensor calibration via the FIFISH APP.
Why can’t I connect to the FIFISH APP after switching to a different smartphone or tablet?
When connecting a new device for the first time, the FIFISH APP requires specific system permissions to communicate with the ROV. Please ensure the following:
Grant Permissions: During the initial launch on your new device, you must select "Allow" or "Enable" for all permission prompts, including Local Network (for communication), Photos/Media (for storage), Location (for calibration/mapping), and Notifications.
If you previously denied these, go to your device's Settings > Apps > FIFISH and manually enable them.

