What is the maximum expected file size of the modem update file for the 9160 LTE modem?

[blake-bit]

What is the maximum file size of the LTE Modem firmware update we can expect on the 9160 platform?
I am trying to plan out our external flash size and partitions.

The current update is around 244KB from file serial_lte_modem_2021-06-25_7a076c22.bin

The documentation recommends a minimum 4MB partition of external flash to store a full update.
What is the reasoning behind this large size requirement?

[Albrecht Markus Schellenberger]

Hello Blake,

I have to investigate this and will come back to you as soon as possible.

Regards,

Markus