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ESIM022 User manual v1.1
17.3. Updating the Firmware via USB Cable
1. Disconnect the power supply, and back-up battery (if any).
2. Short circuit (connect) FW pins.
3. Connect the device via USB cable to the PC.
4. The new window must pop-up where you will find the .bin file. Otherwise open
My Computer
and look for CRP DISABLED drive.
5. Delete the .bin file found in the drive.
6. Copy the new firmware .bin file to the very same window.
7. Unplug USB cable.
8. Remove short circuit from FW pins.
9. Firmware updated.
NOTE:
It is strongly recommended to restore default parameters after the firmware update.