OTA Firmware Update Size

Quick question: I’d like to update firmware on an Electron running 1.4.4 to 3.3.1. I need to do it OTA and was wondering how much data this upgrade would take as I might have to do it for >100 devices.
Thanks

Going from 1.4.4 to 3.3.1 should not have an intermediate Device OS upgrade, so you have 3 system parts (384K) + bootloader (16K) + user firmware (up to 128K) = 528K + some overhead so assume around 800K per device x 100 devices = 80 MB.

However, if you have more than 100 devices presumably you’re on the growth plan. The cellular data limit is high enough that most users will hit the device operations or device count limits first, even with a few firmware updates during the billing month.

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