How to upgrade Kingbolen YA100/YA101 obd2 code reader?

How to upgrade Kingbolen YA100/YA101 obd2 code reader? Preparation: Step 1. Download the upgrade file to your desktop; Step 2. Connect YA101 code reader to laptop USB port [Do NOT connect OBDII cable to the car], the screen will display ‘Upgrading’; Step 3. Open ‘My Computer’ and a new [Removable Disk] will be displayed; Step 4. Copy all files from the removable disk, then paste them anywhere to make a backup; Step 5. Format the removable disk, then copy & paste the new upgrade files which you downloaded into it.; Step 6. Wait till the transfer is finished, the upgrade is finished. (Transfer time depends on laptop configuration) ; WarmTips: 1.If you cannot see the ‘Upgrading’ screen after attaching the USB to the laptop, please make sure the OBDII cable does NOT connect to the car. 2 No USB driver needed to install before upgrading. 3.Plug into the vehicle can not connect USB but only need to connect the OBD2 cable.Avoid getting stuck on "Upgrading" How to upgrade Kingbolen YA100 YA101 obd2 scanner? FB/Twitter @kingbolen.fans