How to disable the power-on password of the YL81F instrument?

1. After the instrument is turned on, press + and - keys simultaneously to enter the setting mode
2. Press + key again to 18P, i key to set, and then press + or - key to switch the letter below to n
3. Long press i key to save and exit settings

Tips: the default password is 1212.

https://burchda-official.com/blogs/knowledge/burchda-display-error-code-18p

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Disclaimer: The information provided in this manual is for reference purposes only. For the most accurate and up-to-date instructions, please refer to the latest official documentation from the manufacturer. The company is not responsible for any errors or issues arising from incorrect use or outdated information.

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