SSU.h and SSD.h together?

Official Hardware MKR Family MKR GSM 1400
1

Is it possible to use both libs together?
Idea:
If there is a UPDATE.bin on the SD card -> Update from SD card
If there is a UPDATE.bin and UPDATE.ok on the modem memory -> Update from modem memory

2

it s not possible to use both

3

I came to the same conclusion. Thanks