Smart LCD Car Key With Uncut Blade for BMW Audi Mercedes-Benz Models Across Generations
Introducing the Universal Smart LCD Car Key for BMW, Audi, Mercedes-Benz with Uncut Blade — a compact, forward‑thinking replacement key that blends a clear LCD display with essential car‑gateway functions. Built for vehicles with a one‑button start function, this LCD key connects to your original car system through a soldered interface, enabling convenient keyless entry, auto lock, and remote start where your car supports it. Please note: this LCD key has no car logos on the surface, offering a clean, modern look that fits discreetly in your pocket or key ring. Originating from Mainland China and developed by YIQIXIN, model HS688, it’s designed to simplify daily driving without changing your existing key infrastructure.
Benefits & Tips
- Experience seamless access with keyless entry and automatic locking within 1.5 meters, reducing the need to fumble for your keys in busy streets or parking lots.
- Remote start potential is available if your original vehicle already supports remote start; the LCD key will mirror that capability where provided, helping you pre‑condition the cabin on cold mornings or hot afternoons.
- Multi‑language support makes setup and daily use easier for diverse users. Language can be adjusted in‑device settings to your preferred option.
Product specifications
- Brand: YIQIXIN
- Model/Manufacturer Part Number: HS688
- OEM No.: Smart Car Key LCD Screen With OBD
- Interchange Part Number: Comfortable Keyless Entry Auto Lock
- Material: Remote LCD Screen Key
- Origin: Mainland China
- Support Languages: English, Korean, Russian, Portuguese, Spanish, Arabic, Thai, French, German, Turkish
- R/C Function: Without (remote start depends on original car capability)
- Installation: Solder the original key circuit board to the LCD key (refer to the manual for details)
- Compatibility: Suitable for all original cars with one‑button start function; not applicable to all manual inline keys and mechanical keys
- Remote Start: Supported only if the original car features remote start
- Design notes: Now all LCD keys carry no car logos; wallpaper customization on the lock screen is not supported
- Important handling: If the device fails to turn on on arrival, charge for 10 hours using the provided charging cable (use only the original cable, not a fast charger) to avoid damaging the circuit board
- Welding caution: This device contains many wiring connections; improper welding can damage the circuit board. For best results, have a professional locksmith handle installation with proper equipment
- Terminology: Keyless Entry unlocks via handle button; Comfortable Entry unlocks automatically within proximity, with automatic locking when you move away
Package includes:
- LCD Smart Key with Uncut Blade
- Charging cable
Warnings/Reminders
- This LCD key has no car logos on the surface and does not support wallpaper changes on the lock screen
- Suitable only for original cars with a one‑button start function; not compatible with all manual direct‑plug keys or mechanical keys
- Remote start works only if your car’s system provides this function
- If your original car does not support remote start, you can still use keyless entry and some automatic window lock features on certain models
- Welding should be performed by a professional locksmith with proper equipment to prevent damage
- Charge on receipt: if the key doesn’t power up, connect the included charging cable and charge for 10 hours before attempting to use it
Language support
The LCD key supports the following languages: English, Korean, Russian, Portuguese, Spanish, Arabic, Thai, French, German, Turkish. Language can be adjusted by following these steps:
- Turn on the LCD key and unlock the screen.
- Slide your finger to the left to access Settings.
- Open Language and select your preferred language by scrolling and tapping.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
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