diff --git a/variants/mkrnb1500/variant.cpp b/variants/mkrnb1500/variant.cpp
index ab4a91286..5e61669e5 100644
--- a/variants/mkrnb1500/variant.cpp
+++ b/variants/mkrnb1500/variant.cpp
@@ -252,7 +252,8 @@ void initVariant() {
   pinMode(SARA_PWR_ON, OUTPUT);
   digitalWrite(SARA_PWR_ON, LOW);
 
-  // put SARA modem in reset on start to conserve power if it's not used
+  // data sheet discourages use of SARA modem reset pin
+  // use may lead to irrecoverable state of modem
   pinMode(SARA_RESETN, OUTPUT);
   digitalWrite(SARA_RESETN, LOW);