Can't get ITead SONOFF Zigbee 3.0 USB Dongle Plus Model “ZBDongle-E” (EFR32MG21 variant) to work with neither ZHA nor zigbee2mqtt

[khvej8]

Look in this thread.

ITead's "Sonoff Zigbee 3.0 USB Dongle Plus" (model "ZBDongle-P") based on Texas Instruments CC2652P +20dBm radio SoC/MCU

UPDATED! The announced TI CC2652P based “Sonoff Zigbee 3.0 USB Dongle Plus” from ITead, later renamed to “ZBDongle-P”, has been released and looks to be great value for a premium hardware package sold for a low price. It is based on Texas Instruments CC2652P radio chip and this “ZBDongle-P” variant is to be sold side-by-side as an alternative to their new “ZBDongle-E” variant that is instead based on Silicon Labs EFR32MG21 radio SoC chip, and while both practically have the same specifications o…

I believe this is the HW you got, right? There are numerous describtions on how to update the FW. Look in first post by Hedda.