obd bench boot checksum correction

{"cid":"90034454","title":"Slave Edition AutoTuner ECU Tuning Programmer with OBD Bench Boot Checksum Correction","imgUrl":"https:\/\/img.chinax.com\/nimg\/2d\/5b\/5dbc8d57bdd65a4661ec855b0cd6-200x200-1.jpg","attrs":{"Price":"please contact us","Brand Name":"Original AutoTuner","Model Number":"Slave Version ECU\/TCU Programming Tool","Minimum Order Quantity":"1","Delivery Time":"5","Programming Modes":"OBD, Bench, Boot, BDM","Place of Origin":"CHINA","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union","Supply Ability":"100","Packaging Details":"in stock","ITEM":"Original AutoTuner Slave Version ECU\/TCU Programming Tool","Feature1":"Ultra-fast process","Feature2":"All-in one package ready to use","Feature3":"Easy-to-use software","Feature4":"Specific help section is available in the software","Update":"Online Free Update","Vehicle Support":"Car","Type":"Programming Tool","Checksum":"Auto Correction","Slave Version":"Slave Version","Warranty":"5 Years","Subscription":"No Subscription Fee"}}

{"cid":"91224541","title":"Vehicle HNR216 V1.27 PCMtuner ECU Programmer With 67 Modules Support Checksum Pinout Diagram","imgUrl":"https:\/\/img.chinax.com\/nimg\/ec\/ff\/97395325205f76fa5ace7ff29db4-200x200-1.jpg","attrs":{"Minimum Order Quantity":"50","Delivery Time":"10-15day","Name":"PCM tuner ECU Programmer","Place of Origin":"China","Supply Ability":"Regular inventory, excluding custom orders.","Packaging Details":"carton"}}