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The BMW GT1 (Group Tester One) from Hae Tech Co., Ltd is a factory-level diagnostic and ECU programming system for all BMW vehicle series. The hardware package includes the yellow DK2.1 multiplexer, a 16-pin OBD-II cable, a 20-pin diagnostic cable, and a LAN cable for workshop connectivity. Software comprises DIS (Diagnosis Information System), TIS, diagnosis, measuring and management modules, with DIS HDD versions V43.0, V49.0 and V51.0 available, plus SSS software HDD V22.0 for newer programming tasks.
The DK2.1 multiplexer serves as the central communication bridge between the host PC and vehicle networks, supporting both the older 20-pin BMW round diagnostic port and the standard 16-pin OBD-II interface. The DIS software covers legacy BMW systems through to mid-2000s architectures, while SSS handles later vehicle programming via the SSS/Progman workflow. IBM T30 laptop compatibility is specified, requiring a Pentium 4 1.8 GHz or higher CPU and 512 MB RAM as the minimum platform, though buyers should confirm current laptop support with the supplier.
This tool targets independent BMW specialists, diagnostic centres and refurbishment workshops needing full ECU reprogramming capability, including blank ECU installation for repaired vehicles. The GT1 remains relevant for Freelander and earlier BMW models where newer ISTA systems do not back-support programming functions. Buyers should verify software licensing terms, update availability and whether the supplier provides pre-installed HDDs or requires separate software procurement. Hae Tech Co., Ltd operates from Shenzhen, Guangdong, with no response-rate data available, so direct contact is essential to confirm package contents, warranty terms and after-sales support before committing.
| Multiplexer Model | DK2.1 (yellow casing) |
| OBD Interface | 16-pin OBD-II cable, 20-pin BMW diagnostic cable |
| Communication Port | LAN cable for PC connection |
| DIS Software Versions | V43.0, V49.0, V51.0 (optional HDD) |
| SSS Software Version | V22.0 (optional HDD) |
| Recommended Laptop | IBM T30 or equivalent (Pentium 4 1.8 GHz+, 512 MB RAM) |
| Primary Function | ECU diagnosis, coding and programming for all BMW series |
| Specialist Application | Blank ECU programming and Freelander support (typical for this generation tool) |
| Software Architecture | Five-system suite: DIS, TIS, diagnosis, measuring, management (standard GT1 configuration) |
| Operating System Platform | Windows-based (typical for legacy diagnostic hardware of this era) |
Hae Tech Co., Ltd is located at No.3013 Sungang Road East, Luohu District, Shenzhen 518008, Guangdong Province, China. The supplier holds an imported tier classification and harbour trust designation on the platform, with a recorded response rate of 0.00 percent and no average response time data. These signals indicate limited transactional visibility through the platform channel, so buyers should treat initial outreach as unqualified and conduct independent verification of the company's operational status and technical support capacity.
The supplier's profile does not state manufacturing credentials, ISO certifications, in-house engineering staff numbers, annual revenue figures or named OEM clientele. What is offered is a packaged diagnostic tool with specified hardware components and software versions. Buyers should confirm whether Hae Tech supplies original equipment, refurbished units or aftermarket-assembled kits, and whether software is pre-licensed or requires separate activation. Direct communication is the only reliable path to establish warranty terms, return policies and technical support availability for a complex diagnostic system that requires ongoing software relevance.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Before ordering the BMW GT1 from Hae Tech Co., Ltd, verify the exact contents of the shipment: confirm whether the multiplexer is new, refurbished or used, and whether cables are original or aftermarket replacements. Request photographs of the actual unit with serial numbers visible, and ask for a screen recording of the software running on the supplied HDD to prove functionality. Given the 0.00 percent response rate on platform channels, use the Shenzhen address and multiple contact methods, email and telephone, to establish direct communication, and consider an initial small order or third-party inspection if the order value justifies the cost.
Logistics from Shenzhen typically route through Yantian or Shekou ports for sea freight, with transit times of 14 to 30 days to major European or North American hubs depending on the service. Incoterms should be negotiated explicitly, FOB Shenzhen is common for electronics of this nature, but confirm whether the supplier has export experience and can provide correct HS classification for automotive diagnostic equipment. Payment terms should start with secure methods such as letter of credit or escrow for first transactions; avoid full prepayment until trust is established. Lead time is not stated and must be confirmed directly, as diagnostic tool assembly may depend on component sourcing cycles.
Quality checks on receipt should include physical inspection of the DK2.1 multiplexer casing for cracks or repair signs, continuity testing of both 16-pin and 20-pin cables with a multimeter, and verification of HDD boot sectors on the specified laptop platform. Run a connected vehicle session if possible, even on a non-BMW CAN bus simulator, to confirm communication layer functionality before accepting the goods. Documentation to request includes a commercial invoice with accurate HS code 9031.80 or applicable subheading, packing list, and any software licensing declaration the supplier can provide. Retain all correspondence regarding specifications in case of dispute, as the lack of platform-mediated transaction protection places burden of proof on the buyer.
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