From 36e77671a24a8e3c228c2e0554f6fd11ac2579de Mon Sep 17 00:00:00 2001
From: taco <taco@sly.nu>
Date: Thu, 2 Jul 2026 17:18:03 +1000
Subject: [PATCH] LR2021: fix for hardware cad and side detectors

---
 src/helpers/radiolib/RadioLibWrappers.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/helpers/radiolib/RadioLibWrappers.cpp b/src/helpers/radiolib/RadioLibWrappers.cpp
index c2bd6b264..dc851e5cf 100644
--- a/src/helpers/radiolib/RadioLibWrappers.cpp
+++ b/src/helpers/radiolib/RadioLibWrappers.cpp
@@ -105,6 +105,9 @@ void RadioLibWrapper::loop() {
 }
 
 void RadioLibWrapper::startRecv() {
+  #if defined(USE_LR2021)
+  _radio->standby(); // without this LR2021 can throw -706 when calling startReceive after hardware CAD when side detectors are enabled
+  #endif
   int err = _radio->startReceive();
   if (err == RADIOLIB_ERR_NONE) {
     state = STATE_RX;
@@ -134,7 +137,7 @@ int RadioLibWrapper::recvRaw(uint8_t* bytes, int sz) {
       }
     }
     #if defined(USE_LR2021)
-    state = STATE_RX;     // LR2021 stays in Rx after readData, if we issue another startReceive while still in Rx we get -706 errors.
+    state = STATE_RX;     // LR2021 stays in Rx after readData, calling startReceive while still in Rx throws -706 errors
     #else
     state = STATE_IDLE;   // need another startReceive()
     #endif