https://devzone.nordicsemi.com/f/nordic-q-a/40121/bootloader-pa-lnaI am working on an application targeting the Fanstel BT840X, which combines nRF52840 and Skyworks SKY66112-11 PA / LNA on a single module. I am using GPIOTE and PPI to drive the PA / LNA and all is working fine in the main application. I then addeden-USTelligent Community 13Tue, 06 Nov 2018 05:29:44 GMThttps://devzone.nordicsemi.com/thread/156054?ContentTypeID=1Tue, 06 Nov 2018 05:29:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7eb8e8e3-7c2f-4666-837c-c8845e2979c2jumpingfool<p>I found the issue, the problem was I was configuring the PA in the wrong place inside ble_dfu_transport_init - it needs to be after ble_dfu_init (I had it after ble_stack_init).</p> <p>I&#39;m not sure how this caused the symptoms I was seeing but moving it has resolved the problem!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/155767?ContentTypeID=1Fri, 02 Nov 2018 13:30:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9678d37d-976e-4dcb-9db0-8607cbae3432Vidar Berg<p>Hi,</p> <p>Have you made sure that there is no conflict between the default pins used for LED indications/Button and the PA/LNA control pins? Sounds like the TX pin might be toggled correctly, but not the LNA pin. Assume you are using the the softdevice to control the PA/LNA support in both cases? &nbsp;</p><div style="clear:both;"></div>