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Battery life can decrease when power-intensive features, such as the laser rangefinder, are used while the battery is already low.
Try using a fully charged battery or disable unnecessary high-power functions when possible. If the battery no longer provides normal operating time after repeated charging, it may have reached the end of its service life and should be replaced.
For devices with built-in batteries, please contact our service center for battery replacement.

If the thermal sensor has been exposed to direct sunlight, lasers, high-temperature flames, or other intense heat sources while operating, image burn-in or ghosting may occur.
Turn off the device immediately and leave it powered off for approximately 72 hours before turning it back on. Minor image retention may recover naturally, while severe damage may require professional servicing.

Over time, individual pixels in the infrared detector may respond differently, causing fixed bright or dark spots to appear on the image.
Most models include a Bad Pixel Correction (BPC) function that can recalibrate the detector and reduce these image artifacts. If the issue remains after calibration, please contact customer support.

If your device won't turn on, first make sure the battery is fully charged. If the battery has been deeply discharged, charge it continuously for at least 5 hours using a 5V/2A (or lower) power adapter before attempting to power it on again.
Also verify that you are using the original battery supplied with the device or a compatible replacement. If the battery was charged with a faulty charger or charging dock, try another charger to ensure the battery is receiving power. If the device still does not turn on after these checks, please contact our customer support team for further assistance.