1. Different SN Number
BENCH, FLASH, OBD all share SN: A55259. They have the same hardware in different cases.
SM2 PRO J2534 VCI SN: A78370. It stands out from others in the market.

2. Different Hardware Version
BENCH, FLASH, OBD hardware version is 2.21.22 (from 03.2019) which is an older release.
SM2 PRO J2534 VCI hardware version is 2.21.18 (from April 14, 2022). It represents a newer build with 16 updates compared to other hardware, adding more features and stability.

• Our hardware supports all J2534 protocol software.
• No device registration or activation required; ready to work out of the box with enhanced privacy protection.
• Accidental updates will not lock the device; revert to the correct driver version to continue operation.
• Supports modern vehicles and online programming (requires online account). Tested and working with models like 2021 GM Buick ENVISION and 2021 CADILLAC XT5.

• Read and write ECU data
• ECU clone & parameter adjustment
• ECU maintenance engineering
• Chip tuning & reading ECU maps
• Checksum correction
• Read flash and ep files
• Powertrain adjustment
• Support online update & VR files supply
• Pinout included with Helpdesk/tuner account
• OBD2 reading
• Cover-free, welding-free, no disassembly data reading (Bench Mode)
• Cover-opening data reading (Boot Mode)

Over 200 Bosch MED/EDC17 protocols without opening the cover, plus:

• VAG Simos 12.1, 12.2, PCR2.1
• FCA GPEC2, GPEC2A, GPEC4, GPEC4LM
• Hyundai/KIA SIM2K-240, 241, 250, 251, 260, 305, MT86
• Ford/LR SID208 Flash read
• Scania EMS S8 BAM (3-point connection)
• PSA SID208, MB SID307, SID310
• Renault SID307, SID309, SID310
• Porsche SDI21.x
• Mitsubishi E6T83XXX, E6T32xxx
• Isuzu Transtron SH72544R, L4.3
• Hino EDC7UC31
• Hyundai, Greatwall DCM6.2AP