https://devzone.nordicsemi.com/f/nordic-q-a/74640/cold-restart-gps-search---how-without-doing-a-nrf91-hw-resetHi, We have a problem that occurs when 1) the GPS is at bootup of nrf91: indoor when we start the GPS search, and it doesn&#39;t find anything or maybe just 1 satellite. We then move outdoor, and still it stays forever and doesn&#39;t find anything. en-USTelligent Community 13Tue, 04 May 2021 06:59:40 GMThttps://devzone.nordicsemi.com/thread/308062?ContentTypeID=1Tue, 04 May 2021 06:59:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4066238c-0677-4011-86d1-8b63caa42efeJohan<p>Thank you. We will explore this and see if we can get the COLD start behaviour, so it starts the search algorithm from start, with no preassumptions.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/307904?ContentTypeID=1Mon, 03 May 2021 11:58:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1b9642c8-59a8-44b6-8ca4-13f0d9c290a5Didrik Rokhaug<p>Hi,</p> <p>You can use the delete mask when starting the GPS through the socket API to delete the stored data: <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfxlib/nrf_modem/doc/gnss_extension.html#starting-the-gps">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfxlib/nrf_modem/doc/gnss_extension.html#starting-the-gps</a></p> <p>The GPS driver will delete the stored data if you set delete_agps_data to true in the gps_config struct. However, there is no support for deleting the stored data in the gps_controller API.</p> <p><a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfxlib/nrf_modem/doc/api.html#c.nrf_gnss_delete_mask_t">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfxlib/nrf_modem/doc/api.html#c.nrf_gnss_delete_mask_t</a> </p> <p>Best regards,</p> <p>Didrik</p><div style="clear:both;"></div>