diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index 3934e3e01..f5acf4e07 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -441,6 +441,11 @@ func startNode(ctx *cli.Context, stack *node.Node, backend ethapi.Backend, isCon
 		}
 	}
 
+	// Kill bsp-geth if --syncmode flag is 'light'
+	if ctx.GlobalString(utils.BlockReplicationTargetsFlag.Name) != "" && ctx.GlobalString(utils.SyncModeFlag.Name) == "light" {
+		utils.Fatalf("Block specimen production not supported for 'light' sync (only supported modes are 'snap' and 'full'")
+	}
+
 	// Spawn a standalone goroutine for status synchronization monitoring,
 	// if full sync is completed in block specimen creation mode set replica config flag
 	if ctx.GlobalBool(utils.ReplicaEnableSpecimenFlag.Name) || ctx.GlobalBool(utils.ReplicaEnableResultFlag.Name) {
diff --git a/codecov.yml b/codecov.yml
index dd61a73b0..c2a06dbbb 100644
--- a/codecov.yml
+++ b/codecov.yml
@@ -1,10 +1,26 @@
 codecov:
-  require_ci_to_pass: yes
+  require_ci_to_pass: false
 
 coverage:
-  precision: 2
-  round: down
-  range: "40...100"
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 0%
+        base: auto 
+        flags: 
+          - unit
+        paths: 
+          - "src"
+       # advanced settings
+        branches: 
+          - main
+        if_ci_failed: success #success, failure, error, ignore
+        informational: false
+        only_pulls: false
+    patch:
+      default: false
+
 
 parsers:
   gcov:
@@ -17,4 +33,4 @@ parsers:
 comment:
   layout: "reach,diff,flags,files,footer"
   behavior: default
-  require_changes: no
+  require_changes: false