Functional Check:Turn the wheel counterclockwise to check whether the mini sewing machine operates normally, and then unlock the machine to start the handheld sewing machine.As this is a single-thread handheld sewing machine for beginners, please tie the knot after the portable sewing machine is finished, otherwise, the sewing thread may fall off.How to tie a knot with a handheld sewing machine:1. Place the fabric to be sewn under the fastening plate.If the needle arm of the portable sewing machine is too low, you can turn the wheel to raise the needle arm.2. Pull out the safety lock and press the switch.3. When sewing, move the fabric to the left. Release the switch when sewing is complete.4. Turn the wheel to raise the needle arm of the sewing machine and take out the fabric.If the sewing thread is still hooked to the sewing machine, please do not pull it out directly.You need to lift the fabric and move it slowly left and right until the sewing thread falls off.5. Cut the sewing thread and tie the knot, done.Tips:1. The needle of the portable sewing machine is very sharp, please be careful when using the needle to avoid injury.2. There is a switch locking device right above the handheld sewing machine, please pull down the locking device when not in use to avoid danger caused by touching the switch by mistake.3. Do not use a portable sewing machine to process fabrics with a thickness of 1.8mm.Be careful, extra thick or hard fabrics may damage the mini sewing machine.