CN900 is mainly used to program the vehicle's key,it can read out and save the key code data.After you get one,you can update it via CD or online.Here I will share the specific steps with you ,so you can update it succussfully.
Now,please open and run the update program.There will show a window named "CN900 key programmer Firmware Updader-TJECU",and choose the button of "Fast".
Step 1: Please connect the PC USB and turn on the power of CN900,click "connect",then the CN900 will be connected with the update software and the lower right corner will show the software version of your CN900;the lower left corner will show "Hardware is Connected!" and the version.
Step 2: Now you can click the "Update",then the program will download the update file fron the Web service.When there shows "Downloading...100%",the update is successful.
Step 3: Go back to the CN900 and click "Setup",next click "Update".After you click "Update",there will show "Firmware will be update Original firmware will be lost.. Press anywhere on the screen back" on the screen of CN900 and after several seconds,if you didn't press anywhere then there will dispaly "Updting Please Wait..." which means it is updating.At the same time,on your PC's screen,there will have an upgrade parogress bar and after there shows "100%", the progress will reboot CN automatically.Then when you see "CN900 reboots successfully",it means the main module update successfully.
Step 4: Open the CN900 PC upgrade procedure,and this time please don't select "Fast".Just click the "Connect",and next click "Update".The same,there will show the upgrade progress bar on the screen,and you will see "Updating internal Software Please Wait...".Once you turn off the power of the CN900 ,the CN900 will show "Interval Software Error Please connet to PC to restore".Then you need to reopen the upgrade program and repeat the operation,after the upgrade progress bar gets 100%,the whole update progress is finished.