Hi Bartek,
Sorry for the trouble. To recover you unit, please follow this procedure:
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Follow the steps in this posting to bring the unit up in boot and hold mode:
[fx30] Bricked after AT!RMARESET=OEM (USB device not found) -
Download the stock WP module R13.1 one-click executable:
https://source.sierrawireless.com/~/media/support_downloads/legato/wpx5xx/release%2013.1/combined%20images/wpx5xx_release-13.1_generic_exe.ashx?la=en -
Run the tool and ensure the firmware updates
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Log on to the FX30 and change AT+WIOCFG=6,16
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Now, update the FX30 firmware onto your device
Let me consult internally about the 100ms pulse. I suspect this isn’t FX30 specific but I’ll get back to you.
BR,
Chris