diff --git a/ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/quecmanager/at_cmd/fetch_data.sh b/ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/quecmanager/at_cmd/fetch_data.sh
index 92a6648..8d5ef18 100755
--- a/ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/quecmanager/at_cmd/fetch_data.sh
+++ b/ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/quecmanager/at_cmd/fetch_data.sh
@@ -1,5 +1,6 @@
-#!/bin/bash
-
+#!/bin/sh
+# On SDXPINN and (assumed) SDXLEMUR with OpenWRT Overlay, the environment NEEDS to be /bin/sh,
+# whereas QTI environment on SDXLEMUR uses /bin/bash. This assumption requires verification.
 # Set content-type for JSON response
 printf "Content-type: application/json\r\n"
 printf "\r\n"
diff --git a/ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/quecmanager/experimental/cell_scanner/clear_scan.sh b/ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/quecmanager/experimental/cell_scanner/clear_scan.sh
old mode 100644
new mode 100755
diff --git a/ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/quecmanager/logout.sh b/ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/quecmanager/logout.sh
old mode 100644
new mode 100755