diff --git a/src/modules/SX127x/SX127x.cpp b/src/modules/SX127x/SX127x.cpp
index b508cd7c..18612c4a 100644
--- a/src/modules/SX127x/SX127x.cpp
+++ b/src/modules/SX127x/SX127x.cpp
@@ -1178,7 +1178,12 @@ bool SX127x::findChip(uint8_t ver) {
 }
 
 int16_t SX127x::setMode(uint8_t mode) {
-  return(_mod->SPIsetRegValue(SX127X_REG_OP_MODE, mode, 2, 0, 5));
+  uint8_t checkMask = 0xFF;
+  if((getActiveModem() == SX127X_FSK_OOK) && (mode == SX127X_RX)) {
+    // disable checking of RX bit in FSK RX mode, as it sometimes seem to fail (#276)
+    checkMask = 0xFE;
+  }
+  return(_mod->SPIsetRegValue(SX127X_REG_OP_MODE, mode, 2, 0, 5, checkMask));
 }
 
 int16_t SX127x::getActiveModem() {