Hieha CarPlay Manual: Setup, Pairing & Troubleshooting

Got a Hieha CarPlay device and a manual that reads like it was written by a robot? You're not alone.

At Car Tech Studio, we deal with CarPlay devices every day — and the Hieha manual is one of the more confusing ones out there. Whether you're trying to get wireless CarPlay running, figure out the MirrorLink password, or get your backup camera to trigger in reverse, this guide has you covered.

I've pulled everything from the official Hieha manuals, quick-setup guides, and real user experiences to give you a clear, plain-English breakdown of how these devices work — and how to fix them when they don't.

Key Takeaways

• The Hieha CarPlay manual default Wi-Fi password for MirrorLink and Phone Mirror is 12345678
• Wireless CarPlay requires both Bluetooth AND Wi-Fi turned on at the same time on your iPhone
• You must accept the "Use CarPlay with…" prompt on your iPhone — skipping it leaves you with Bluetooth audio only
• For USB Auto Play, you need to tap "Trust This Computer" on your iPhone when prompted
• Backup cameras need the red wire connected to the reversing light's positive terminal to trigger automatically
• Different Hieha models use different Bluetooth names: "Hieha," "CarKit-xxxx," or "F800-xxxx"
• MirrorLink and CarPlay are different modes that require different settings — they conflict with each other
• Hieha covers devices with a 30-day refund policy and 1-year no-repair replacement warranty

What Kind of Hieha Device Do You Have?

Before diving into setup, it helps to know which type of Hieha product you're working with. The setup steps differ depending on the device.

There are three main categories:

Portable CarPlay screens — These mount on your dashboard with a suction cup or bracket and plug into your 12V cigarette lighter socket. No permanent wiring needed. These come in 7-inch and 8.1-inch versions and are ideal for older cars or leased vehicles. Audio comes through a built-in speaker, AUX cable, or FM transmitter.

In-dash 7-inch touchscreen stereos — These replace your factory head unit and wire directly into your car's speaker harness, power, and antenna. More features, more setup involved.

Wireless CarPlay adapters/dongles — These plug into your car's existing wired CarPlay USB port and convert it to wireless. They only work if your car already supports wired CarPlay.

Knowing which one you have will make the rest of this a lot easier.

How to Set Up Wireless CarPlay on a Hieha Portable Screen

This is the most common question — and where most people get stuck. Here's the process, step by step.

Step 1: Turn on the Device and Tap CarPlay

Power on your Hieha screen. On the main menu, tap the CarPlay icon. This tells the device to look for a CarPlay connection. Skipping this step means nothing happens even if your phone connects.

Step 2: Enable Both Wi-Fi and Bluetooth on Your iPhone

This is where a lot of people go wrong. You need both turned on at the same time. CarPlay uses Bluetooth for the initial handshake and then switches to Wi-Fi for the actual data connection. If either is off, it won't work.

Also make sure your iPhone isn't already connected to another Bluetooth device or Wi-Fi network that could interfere.

Step 3: Pair via Bluetooth

Open your iPhone's Bluetooth settings and look for your device's name. Depending on your model, it might show up as:

• "Hieha" — on most portable screens
• "CarKit-xxxx" — on the 7-inch in-dash multimedia player
• "F800-xxxx" — on the 8.1-inch portable stereo

Tap the name to pair. If asked for a PIN, enter 0000.

Step 4: Accept All the Prompts

Two pop-ups will appear on your iPhone. Both matter.

First: "Allow Contacts and Favorites Sync" — tap Allow. This gives CarPlay access to your contacts for hands-free calling.

Second: "Use CarPlay with '[device name]'" — tap "Turn on WLAN & Use CarPlay". This is the step that actually launches CarPlay on the screen.

If you tap "Not Now" or dismiss either prompt, your phone will connect for audio only and CarPlay won't launch. You'll need to go back and re-pair from scratch.

Step 5: Wait for It

After accepting the prompts, give it 5 to 15 seconds. The device needs a moment to sort out the Wi-Fi connection and load the CarPlay interface. First-time setups take a little longer. After that, future connections happen mostly on their own when you start your car.

Setting Up CarPlay on the Hieha 7-Inch In-Dash Stereo

The in-dash 7-inch multimedia player follows the same basic flow but uses different terminology and device names.

Turn on Wi-Fi and Bluetooth on your iPhone. Find "CarKit-xxxx" in your Bluetooth list and tap to pair. If prompted for a PIN, use 0000.

When the pop-up asks to allow contacts sync, tap Allow. When you see "Use CarPlay with 'IVT'", tap Use CarPlay. The stereo will then automatically switch to the CarPlay interface.

"IVT" is just the internal CarPlay identifier for this model — don't let it throw you off.

Setting Up a Hieha Wireless CarPlay Adapter/Dongle

These work differently because they rely on your car's existing CarPlay system.

• Start your car and let the head unit fully boot up
• Plug the adapter into the main USB-A or USB-C port — not a charging-only port. You'll know you've got the right port if the head unit shows a "Reading USB" message or similar
• Turn on Bluetooth and Wi-Fi on your iPhone
• Look for "Car-Play-XXXX" or "Smart Dongle-xxxx" in your Bluetooth list
• Tap to pair and accept all prompts — "Allow," "Pair," and "Use CarPlay"

Important: When the adapter's Wi-Fi network appears in your iPhone's Wi-Fi settings, do not manually connect to it. Leave Wi-Fi on and let the CarPlay system manage the connection automatically. Manually joining the network can break the handshake.

One more thing: if your iPhone is already paired with your car's factory Bluetooth system, this can cause conflicts. The head unit may try to connect to your phone directly instead of going through the adapter. Unpair your phone from the car's head unit first, then set up the adapter.

Also worth noting — these adapters only work with cars that already support wired CarPlay. If your car doesn't have wired CarPlay, the adapter won't add it. Apple maintains an official list of CarPlay-compatible vehicles on their website if you need to check.

How to Use MirrorLink and Screen Mirroring on Hieha Devices

MirrorLink is different from CarPlay. It mirrors your entire iPhone screen rather than launching the CarPlay interface. Here's how it works — and why it trips people up.

iPhone MirrorLink Setup

1. If you're coming from a CarPlay session, turn off Bluetooth on your iPhone first. MirrorLink uses Wi-Fi only, and having Bluetooth on can interfere
2. Turn on Wi-Fi on your iPhone
3. Connect to the Wi-Fi network whose name matches your device's CarPlay identifier. For example, if your Bluetooth name was "F800-D610605C," the Wi-Fi network will have the same name
4. Enter the Wi-Fi password: 12345678 (this is the factory default across multiple Hieha models)
5. Swipe down to open Control Center, tap Screen Mirroring (sometimes labeled "Screen Image"), and select your Hieha device

Your iPhone screen will now appear on the car display.

If MirrorLink Keeps Failing

This is one of the most common complaints. The fix, straight from Hieha's own FAQ:

1. Turn off both Bluetooth and Wi-Fi on your iPhone
2. Restart your phone
3. Open the MirrorLink function on the Hieha screen directly, without reconnecting Bluetooth
4. If still not working, do a factory reset: go to Settings > Basic Setup > Restore Factory Settings > Yes

One oddly specific tip from Hieha's support documentation: if you're using Android with a personal hotspot, make sure the word "car" in the hotspot name is lowercase. Some mirroring apps are case-sensitive and will fail if it reads "Car" instead of "car."

Wired USB Setup: The "Trust This Computer" Step

Some Hieha in-dash stereos use a wired USB connection instead of fully wireless CarPlay. This mode is called "Auto Play" or "Phone Interconnect."

1. On the stereo's main interface, tap Auto Play first — before you plug in your phone
2. Connect your iPhone to the stereo's USB port using your original Apple cable (third-party cables often only charge and won't carry data)
3. When your iPhone shows the "Trust This Computer?" dialog, tap Trust

Without that last step, your phone won't share data with the stereo and Auto Play won't launch.

If you need audio through Bluetooth as well, you'll need to pair separately. The manual notes: "match the Bluetooth if you need to use the audio."

Audio Routing: Built-In Speaker, AUX, or FM Transmitter

Portable Hieha screens give you three ways to route audio. Worth understanding before you wonder why you can't hear anything.

Built-in speaker — Works out of the box, no setup needed. Sound quality is modest and volume is limited, especially in noisy cars.

AUX cable — Connect a 3.5mm cable from the Hieha screen's output to your car radio's AUX input, then set your car radio to AUX mode. Much better sound quality.

FM transmitter — Select an unused FM frequency on the Hieha screen, then tune your car's radio to match. Pick a frequency with no strong local stations nearby or you'll get interference. This is the most flexible option but can pick up signal noise in areas with lots of radio stations.

If you're getting no audio, check two things: what output mode the Hieha device is set to, and whether your car's audio system is set to the matching input.

Installing a Backup Camera with Your Hieha Screen

Adding a backup camera is one of the best upgrades you can pair with a Hieha portable screen. Here's how it works.

Physical Installation

1. Connect the camera's AV connector to the AV IN port on your Hieha unit — this carries the video signal
2. Route the reversing cable from the camera at the rear of your car through the interior — typically along the headliner, down the A-pillar, and along the door sills toward the trunk. Tuck it securely and keep it away from airbag components or moving parts
3. Mount the camera near the license plate or trunk handle using the included screws. Aim it so you get a clear view of the area directly behind your car

If you're looking for a compatible option, the 125° HD Waterproof Reverse Camera works well with portable screens.

Triggering the Camera in Reverse

This is the critical part:

1. Open your trunk and locate the reversing light wiring
2. Use a multimeter to identify the positive wire — it's often white, but confirm it first
3. Connect the red wire from the camera's extension cord to that positive terminal. This means the camera only gets power when the car is in reverse

To test: put the car in reverse. The Hieha screen should automatically switch to the camera feed. If it doesn't, recheck the power wire connection and the AV IN connection on the unit.

Troubleshooting: Common Hieha CarPlay Problems

CarPlay Not Launching After Pairing

Most likely you dismissed one of the iOS prompts. Go back to your iPhone's Bluetooth settings, forget the Hieha device, and re-pair from scratch. This time, accept both pop-ups.

Also confirm that the Hieha screen is showing the CarPlay icon/mode — if it's still sitting on the home screen and not waiting for a CarPlay connection, the device won't start the process.

Wireless Adapter Not Found in Bluetooth

Check that your iPhone isn't already connected to another Bluetooth device or your car's factory system. Disconnect those first. Then search again — the adapter name should show up within a few seconds of being plugged in.

MirrorLink Won't Connect

Turn off both Bluetooth and Wi-Fi, restart your iPhone, and try reconnecting to the Wi-Fi network with password 12345678 without turning Bluetooth back on. If that still doesn't work, factory reset the screen.

No Sound from the Car Speakers

Make sure your audio output is set correctly on the Hieha device and that your car's system is on the matching input. For FM transmitters, check that both the device and car radio are on the same frequency and that no local station is broadcasting close to it.

Backup Camera Not Showing in Reverse

Check that the red power wire is connected to the correct terminal (reversing light positive) and that the AV connector is fully seated in the AV IN port. A loose connection on either end is the most common cause.

Poor FM Radio Reception on In-Dash Stereos

First, check that the antenna plug is fully inserted. If that doesn't help, run a channel scan from the FM menu. If reception still doesn't improve, unplug the antenna and temporarily insert a metal strip or screwdriver into the antenna port. If reception gets better with the improvised antenna, the issue is with your car's antenna cable — not the unit itself.

Speaker Wiring for Hieha In-Dash Stereos

If you installed the Hieha in-dash stereo and have no audio, speaker wiring is often the culprit.

Each speaker needs two dedicated wires — one positive, one negative. If your car's original wiring only has two cables total (a simplified shared-ground setup), the Hieha unit won't work properly with that configuration.

You'll need to rewire so that each speaker has its own dedicated pair. Two speakers = four cables. The manual is clear on this: "only in this way will the unit work properly."

Also check for short circuits — bare wires touching each other or any metal surface will cut audio entirely. Inspect each connection before putting the dash back together.

Warranty and Support

Hieha covers their portable CarPlay screens with a 30-day free refund policy and a 1-year no-repair replacement warranty. That means if something goes wrong within the first year, they'll replace the unit rather than send it in for repairs.

For warranty claims or support, contact them at support-us@hieha.net.

You can also find their official manuals and model-specific setup guides at hieha.com/pages/hieha-user-manual-download.

CarPlay vs. Android Auto vs. MirrorLink: What's the Difference?

These three get mixed up a lot, so here's a quick breakdown:

Apple CarPlay is Apple's own interface — a focused set of apps built for driving. You get Maps, Phone, Messages, Music, and a handful of approved third-party apps. Clean, consistent, and safe to use behind the wheel.

Android Auto is Google's version of the same concept, built for Android phones.

MirrorLink / Screen Mirroring mirrors your entire phone screen — every app, every notification. Less restricted, but not designed with driving safety in mind. Best for passengers or when the car is parked.

Each one uses a different connection method, which is why you can't just flip between them without changing settings on your device.

Is Hieha CarPlay Legit? What Users Actually Say

Based on YouTube reviews, Reddit threads, and community posts, the picture is mixed — but mostly positive when the devices are set up correctly.

Users like Hieha screens for adding wireless CarPlay to older vehicles without touching the factory head unit. The auto-reconnect feature — where CarPlay launches on its own when you start the car — gets good marks. The 1080p backup cameras also get positive mentions for night vision clarity.

The more common complaints include:

• Occasional wireless dropouts or lag compared to wired CarPlay
• Touch response that can feel slower than factory screens
• Manuals that are technically accurate but awkwardly translated
• Some confusion around whether devices are officially Apple-certified or just using CarPlay-compatible protocols

One real concern worth flagging: wireless adapters only work with cars that already have existing wired CarPlay. Cars from 2015 and earlier often don't qualify, even if they have a USB port. Always check compatibility before buying an adapter.

According to a 2025 industry report, the global wireless Apple CarPlay adapter market is estimated at around 1.8 billion USD, with a projection of 5.4 billion USD by 2034 and a compound annual growth rate of roughly 13% from 2026 to 2034 — showing strong demand for aftermarket solutions like Hieha's lineup.

If you want a more permanent upgrade — one that replaces the factory screen entirely and adds full Android functionality with wireless CarPlay — that's a different product category. At Car Tech Studio, we carry purpose-built Android head units and Tesla-style touchscreens designed for specific car models. We also offer wireless Apple CarPlay & Android Auto modules that add CarPlay to vehicles that never had it from the factory.

Frequently Asked Questions

What is the default Wi-Fi password for Hieha MirrorLink?

The default password is 12345678. You'll use this to connect your iPhone to the Hieha device's Wi-Fi network when setting up MirrorLink or Phone Mirror mode.

Why does Hieha CarPlay connect via Bluetooth but not launch CarPlay?

This usually means you dismissed one of the iOS prompts. You need to accept both "Allow Contacts and Favorites Sync" and "Use CarPlay with [device name]" for CarPlay to actually launch. Accepting the Bluetooth pairing alone only connects audio — not CarPlay.

Does the Hieha wireless adapter work with any car?

No. Hieha wireless adapters only work with cars that already support wired Apple CarPlay. They convert an existing wired CarPlay port to wireless — they don't add CarPlay to cars that never had it. Check Apple's official vehicle compatibility list if you're unsure.

Why is my Hieha backup camera not showing when I reverse?

The two most likely causes: the red power wire isn't connected to the reversing light's positive terminal, or the AV connector isn't fully plugged into the AV IN port on the Hieha unit. Check both connections and test again by putting the car in reverse.

What's the Bluetooth name for my Hieha device?

It depends on the model. Portable screens typically show as "Hieha", the 7-inch in-dash stereo as "CarKit-xxxx", and the 8.1-inch portable stereo as "F800-xxxx". The "xxxx" is a unique identifier for your specific unit.

Can I use MirrorLink and CarPlay at the same time on Hieha devices?

No. They use different connection methods and conflict with each other. To switch from CarPlay to MirrorLink, you need to turn off Bluetooth on your iPhone first and connect via Wi-Fi only.

What should I do if CarPlay keeps disconnecting?

Start by restarting both your iPhone and the Hieha device. Delete the Bluetooth pairing and re-pair from scratch. Make sure your iPhone's Wi-Fi isn't jumping to another network. If the problem continues, do a factory reset through Settings > Basic Setup > Restore Factory Settings > Yes.

Where can I find the official Hieha user manual for my device?

Hieha hosts model-specific manuals and setup guides on their website at hieha.com/pages/hieha-user-manual-download. Manuals are also available through third-party documentation sites like Manuals.plus if you search your device model name.