https://devzone.nordicsemi.com/f/nordic-q-a/55800/thingy91-3-3v-power-domain-sleep-modeI am trying to switch off the 3.3v power domain to save power. I can disable it by using adp536x_buckbst_enable(false) in board_secure.c but when I try to use the same function call in main.c the function call hangs with no error code. Any helpen-USTelligent Community 13Thu, 19 Dec 2019 11:06:38 GMThttps://devzone.nordicsemi.com/thread/226344?ContentTypeID=1Thu, 19 Dec 2019 11:06:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:edd7dec8-4fba-471d-9f58-5b84cab67a68Andrew B<p>Fixed the issue, the adp536x_init() function call had the incorrect name for the ADP536X I2C and was not initialising it correctly. Now the <span>adp536x_buckbst_enable(false)&nbsp;</span>function call works.</p><div style="clear:both;"></div>