thinktool-expert-399
THINKTOOL Expert 399
14-INCH New AI Technology Diagnostic Tool
2024 New Release AI, Dual Vehicles Diagnostic
TCOS System
AI Diagnostics
Dual Vehicles Diagnostics
Fast Charging
OE-Level Diagnostics
2-Year Free Update For Passenger Software + 2-Year Free Update for EV Software
+ 2-Year Free Update for HD Software
What's New?
The THINKTOOL Expert 399 is a brand new 14-inch AI diagnostic device developed by THINKCAR in 2024, which features with unique designed, optimized UI interface and powerful TCOS system. The 399 supports RTC dual vehicle diagnostics with additional VCI. It supports split screen to show the data, modules etc, which are capable of diagnosing passenger vehicles, electric vehicles, commercial vehicles, which is an idea choice for mechanics and advanced workshop.
Newly Released AI Diagnostics
with optimized user experience, the pad can fast and easily follow command.
OE-Level Diagnostics
including full system diagnostics, special function, actuation test, bi-directional control, advanced coding, online programming etc.
TCOS
Advanced TCOS system with brand new UI interface for optimized user experience.
Brand New Industrial Design

8.15mm with
which is lightweight, robust, and durable with a thickness of 8.15mm
1.2M
which passed the 1.2M dropping test.

VCI Display
The VCI data can be synchronized in the device in real-time.
2-Years Free Update
Remarks: Includes 120+ passenger software, 70+ EV software and 220+ HD software.
Passenger Software
EV Software
HD Software
Integrated 41 Different Kinds Of Maintenance Function.
Dual Diagnosis
Support dual vehicle diagnostics with additional VCI.
45W Fast Charging
Equipped with fast charging dock, the tablet can be fully charged within 2-Hour.
Support Video Remote Diagnostics.
Superior Hardware
14-inch HD IPS touch screen, 256 G storage, 20MP Rear Camera, 8MP Front camera.
20MP
Rear Camera
14-inch
HD IPS touch screen
256G
Storage
8MP
Front camera
Supports Battery Testing, Endoscope, Printer, Oscilloscope, And Other Expandable Functions.
Battery testing
Endoscope
Printer
Oscilloscope
Additional Services
Which support ADAS calibration services, comprehensive TPMS services, and key programming services.
ADAS calibration
Remarks: The ADAS is sold seperately.
TPMS
Remarks: The TPMS programmer is sold seperately.
Key programming
Remarks: The Prog is sold seperately.
Specifications
Operating System:
TCOS System
Rom/ Ram:
256G/8G
Battery:
22400mAH/ 3.8V
VCI:
THINKLINK PRO
Screen Size:
14-inch
Passenger Software:
2-Year Free Update for Passenger Software
EV Software:
2-Year Free Update for EV Software ( Including Tesla)
HD Software:
2 - Year Free Update for HD Software
Accessories
Comparisons
Specifications
FAQ
Insufficient contact of VCI with vehicle OBD port
Please replug the VCI.
Unfix the firmware.
Click “settings” and then "firmware repair" icon to upgrade the firmware.
Bad contact of the VCI
Please reinsert the VCI and try again.
Problem with Bluetooth pairing.
Please cancel the Bluetooth pairing of the diagnostic VCI and re-use the software to automatically pair the VCI.
The diagnostic tablet is left unused for a long time and the battery runs out of power.
Boot by long-pressing the ON/OFF button after 2 hours charging.
Adapter failure.
Please confirm whether the adapter is properly connected to power supply, or the interface contact is in the right place.
No network on the diagnostic tablet.
Check if the diagnostic tablet is connected to good network.
Get prompted that the email address has been signed up.
1. Sign up a new account;2. Retrieve the password and sign in with the original account.
Fail to receive the verification code during sign-up.
1. Check if the email address is correct;
2. Resend a new verification code.
Username or password incorrect.
1. Check if the username or password is correct; 2. Reset your password.
Server failure.
Please try later due to server maintenance.
The device is not connected to Internet
Please confirm whether WiFi network is working normally or network connection is successful.
The serial number and activation code are entered incorrectly
Please check and confirm whether the serial number and activation code are correctly entered (12 digits for serial number and 8 digits for activation code).
Activation code is invalid
Please contact THINKCAR service team or regional sales.
Prompt that the configuration is empty
Please contact THINKCAR service team or regional sale.
When the software is upgraded, it prompts that it is not activated.
The diagnostic VCI may not be activated during registration. Please use the serial number and activation code in the password envelope to activate the device. The operation steps are as follows: Click [Settings]-[VCI Activation], and enter the correct serial number and activation code in the interface, and click [Activate]. If you have any questions, please contact after-sales customer service.
The device is not connected to Internet
Please confirm whether WiFi network is working normally or network connection is successful.
Insufficient storage space
Please uninstall irrelevant applications: select and delete uncommon software in “Software cleaning module” under “Settings” menu.
Server problem
Server under maintenance. Please try again later.
Poor contact of vehicle OBD internal circuit
Please check if OBD pins are all in good conditions.
Vehicle battery heavily loss of electricity
Please recharge of replace the battery.
VCI damage
Please provide proof video to THINKCAR service team for processing.How to save power?
1)Please sleep the screen,if the tablet isn’t been used. 2)Reduce screen standby time by setting. 3)Reduce the screen brightness by setting.
Where can I purchase a THINKCAR device?
Please contact your local dealers listed in www.thinkcar.com to buy THINKCAR tools.
Can I dis-active my diagnostic tools?
Cancellation of registration is not allowed.If there are any special circumstances, the dealer will submit the SN and application reason to the company to apply, and the dealer will assume that the customer complaint caused by the cancellation of the registration will be assumed by the dealer.
Can the account password be changed?
Modification is not allowed, customers are advised to modify by themselves by retrieving the password
