Sony ECM-680S M/S Stereo Shotgun Microphone - Manual (Page 9)

SIM card settings
The menu structures for SIM card settings and mobile network settings have changed.
SIM card setting screen
When using one SIM card:
Find and tap [Settings] > [Network & internet] > [Mobile network] to set the SIM card.
When using two SIM cards:
Find and tap [Settings] > [Network & internet], and then tap the name of the SIM card whose functions you want to
set.
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