Looks good without packaging. The internal battery will begin to discharge rapidly as soon as it is turned on when not connected to the vehicle. It does not carry the device when it is on. The internal battery continues to discharge rapidly even though the charging icon is active. It charges the device ONLY when it is turned off. ready for emissions test. This means that all readiness monitoring is completed. This information should be one of the main functions because even if there is NO check engine light, the emission will not work unless the readiness monitors are running. After 20 minutes of searching, I found the "Number of Completed Monitors" and "Number of Incomplete Monitors" headings under the "Module Information" heading, which lists the ECM serial number and other useless information. ABSOLUTELY NO INFORMATION WHAT THE MONITORS WERE/ARE. ONLY THE NUMBER IS COMPLETE AND INCOMPLETE. It's almost useless for determining where to start. You need to know which monitors are ready and which are not to start troubleshooting. I have performed the recommended device updates as described in the manual. COMPLETE AND INCOMPLETE LISTING. The update completely removed all information about the readiness of the monitor. This is another example of overpriced Mainland China junk. Cheap inexpensive devices usually have a list of monitors and clearly write what is ready and what is not.
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