FIRMWARE UPDATING

firmware updating old version 1.1, 1.2 and 2.2 to be 2.5 needed usb connection

Updating steps:

Install FTDI driver, download link https://drive.google.com/file/d/1X8Yk5R5AMGyK3zjrec8qDIeo0o9XJ-q0/view?usp=sharing
Install Uploader tools, download link https://drive.google.com/file/d/1i7WjfwcsbYAqCrA2AsFbzZwhMmmOp8nR/view?usp=drive_link
Firmware 2.5 BIN download link https://drive.google.com/file/d/1v0lsyUhQ33If8URh1Cgju3l3kLC8l5Mg/view?usp=drive_link
Noted the value of CAL , BFO L and BFO U before flashing
Start ESP32 flash download tools v3.9.7 ready to flash

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