Hello again. I took the procedure to remove the battery for 15 minutes, but it did not solve the problem (aka, the battery is not the original one). I was able to partially solve the problem by doing the following: I left the system with blue light blinking until the battery was discharged; when recharging the battery the tuning system returned to normal operation, but after a few hours began a problem different from the previous one. When I turn on the system, it has all the functions that work, except for the tuning. I made a new video demonstrating the problem. When I turn the knob on, the blue light flashes once, so all the red lights are left except for D flashing blue. I can verify the charge of the beteria, enter the Calibration Mode and the Setup Mode as you can see in the video I posted on youtube (
).https://youtu.be/wBXCKhQSQUM