CT-3 offline upgrade
HintIt’s recommended to upgrade the firmware with PC suite, as it automatically pulls latest firmware and works more conveniently.However, if you want to upgrade the firmware independently, here is the way to go.Procedure[*]Download zip firmware file in the end of this page (e.g. 10064.zip means V1.00.64) and extract it.
[*]Power down the meter.
[*]Roll the key to the left and hold.
[*]Power on the meter by plugging in the PC port(micro usb port) while still holding the left key.
[*]After 2 seconds, the screen shows “Bootloader” in the first row, a u-disk should be visible on the computer.
[*]You could release the key.
[*]Create a folder called “fw” in the u-disk, copy extracted files into the folder (The structure should be u-disk:/FW/…).
[*]Wait for copying.
[*]On the meter, select and enter “Update From Int.Memory”.
[*]Wait for update done, and select “Reboot”.
[*]Finished
Historic version
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