Diagnostic tool for SM2 Pro J2534 VCI supports checksum1、Applicable Models: Support newest cars and do online programming (with online account) .for example GDS software, replacement for ENVISION 2021 year, replacement for XT5 2021 year. 2、Multi Functional: ECU programmer has multifunctions, such as read and write ECU data; ECU clone; ECU parameter adjustment; ECU maintenance engineering; Chip turing; Read ECU maps; Checksum correction, etc. 3、Easy to Use: Support all J2534 protocol software, dont need register and active device, you can work it directly, and more pay attention to protecting personal privacy. 4、67 in 1 Active Licenses: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 38 40 42 43 45 46 47 48 50 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74. 5、Safe and Dependable: When you update your device by mistake, it will not be locked. you just come back to correct driver version to work.