KEYDIY manufactures professional automotive locksmith tools, universal remote generators, and digital key systems.
KEYDIY, operated by Shenzhen Yiche Technology Co., Ltd., is a leading provider of automotive security solutions and locksmith tools. The brand is best known for its versatile remote generation devices, such as the KD-X2 SY KD-MAX, which allow automotive professionals to generate, clone, and program remote keys for a vast array of vehicle models.
KEYDIY also produces the Phone As Key (PAK) system, turning smartphones into digital car keys, and a line of universal remote keys (B/NB series) designed to reduce stock requirements for locksmiths. Their products combine hardware durability with extensive software support via the Mobile KD app, serving locksmiths and automotive technicians worldwide.
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Open the 'Phone As Key' app, go to Device Management, select the paired device, click 'Manage', and select settings to modify the password. The default password is '000000'.
Open the battery compartment located on the back of the remote control key. Remove the old battery and insert a new CR2032 battery (or the specific type for your model) observing the correct polarity (+/-).
The KD-Tag relies on the Apple Find My network. If no Apple devices are nearby to detect the tag, the location will not update. It typically takes 5–15 minutes to refresh when a device passes by.
The PAK system supports all vehicle models that can be generated using KEYDIY ZB series and TB series remotes, typically those with push-button start systems.