diff --git a/common_run.sh b/common_run.sh
index a200558..22fe304 100644
--- a/common_run.sh
+++ b/common_run.sh
@@ -17,8 +17,8 @@ rm -f profile.txt
 if ! [ -z "${FIRMWARE}" ]; then
   LOCAL_PROFILE=$(echo "${PROFILE}" | sed 's/\/work\///g')
   CHIP=$(cat "${LOCAL_PROFILE}" | grep -o '"chip": "[^"]*' | grep -o '[^"]*$')
-  if grep -q "BK7231" <<< "${FIRMWARE}"; then
-	if ! grep -q "${CHIP}" <<< "${FIRMWARE}"; then
+  if grep -iq "BK7231" <<< "${FIRMWARE}"; then
+	if ! grep -iq "${CHIP}" <<< "${FIRMWARE}"; then
 	  echo "WARNING: Flashing a firmware for the wrong chip may soft-brick your device requiring a serial flash to recover."
 	  echo "You have selected a profile for chip type ${CHIP} but the selected firmware filename (${FIRMWARE}) indicates it may be for another chip."
 	  read -p "Are you sure want to proceed?  Type 'PROCEED' (case-sensitive) to continue or 'exit' to stop (exit/PROCEED): " doublecheck