diff --git a/consensus/tests/proposed_block_test.go b/consensus/tests/proposed_block_test.go
index ff87d76960..e166e121a7 100644
--- a/consensus/tests/proposed_block_test.go
+++ b/consensus/tests/proposed_block_test.go
@@ -11,7 +11,7 @@ import (
 )
 
 func TestProcessFirstV2BlockAndSendVoteMsg(t *testing.T) {
-	// Block 11 is the first v2 block with starting round of 0
+	// Block 11 is the first v2 block with round of 1
 	blockchain, _, currentBlock, _, _ := PrepareXDCTestBlockChainForV2Engine(t, 11, params.TestXDPoSMockChainConfigWithV2Engine, 0)
 	engineV2 := blockchain.Engine().(*XDPoS.XDPoS).EngineV2
 
@@ -33,7 +33,8 @@ func TestProcessFirstV2BlockAndSendVoteMsg(t *testing.T) {
 	round, _, highestQC, _ := engineV2.GetProperties()
 	// Shoud trigger setNewRound
 	assert.Equal(t, utils.Round(1), round)
-	assert.Equal(t, extraField.QuorumCert.Signatures, highestQC.Signatures)
+	// Should not update the highestQC
+	assert.Equal(t, utils.Round(0), highestQC.ProposedBlockInfo.Round)
 
 }
 
diff --git a/consensus/tests/sync_info_test.go b/consensus/tests/sync_info_test.go
index f9cb2cb8fa..51a125707a 100644
--- a/consensus/tests/sync_info_test.go
+++ b/consensus/tests/sync_info_test.go
@@ -6,11 +6,12 @@ import (
 	"github.com/XinFinOrg/XDPoSChain/consensus/XDPoS"
 	"github.com/XinFinOrg/XDPoSChain/consensus/XDPoS/utils"
 	"github.com/XinFinOrg/XDPoSChain/params"
+	"github.com/stretchr/testify/assert"
 )
 
-func TestSyncInfoForFirstV2BlockMsgWithoutQC(t *testing.T) {
+func TestSyncInfoShouldSuccessfullyUpdateByQC(t *testing.T) {
 	// Block 11 is the first v2 block with starting round of 0
-	blockchain, _, currentBlock, _, _ := PrepareXDCTestBlockChainForV2Engine(t, 11, params.TestXDPoSMockChainConfigWithV2Engine, 0)
+	blockchain, _, currentBlock, _, _ := PrepareXDCTestBlockChainForV2Engine(t, 15, params.TestXDPoSMockChainConfigWithV2Engine, 0)
 	engineV2 := blockchain.Engine().(*XDPoS.XDPoS).EngineV2
 
 	var extraField utils.ExtraFields_v2
@@ -20,12 +21,49 @@ func TestSyncInfoForFirstV2BlockMsgWithoutQC(t *testing.T) {
 	}
 
 	syncInfoMsg := &utils.SyncInfo{
-		HighestQuorumCert:  extraField.QuorumCert,
-		HighestTimeoutCert: nil, // Initial value?
+		HighestQuorumCert: extraField.QuorumCert,
+		HighestTimeoutCert: &utils.TimeoutCert{
+			Round:      utils.Round(2),
+			Signatures: []utils.Signature{},
+		},
 	}
 
 	err = engineV2.SyncInfoHandler(blockchain, syncInfoMsg)
 	if err != nil {
 		t.Fatal(err)
 	}
+	round, _, highestQuorumCert, _ := engineV2.GetProperties()
+	// QC is parent block's qc, which is pointing at round 4, hence 4 + 1 = 5
+	assert.Equal(t, utils.Round(5), round)
+	assert.Equal(t, extraField.QuorumCert, highestQuorumCert)
+}
+
+func TestSyncInfoShouldSuccessfullyUpdateByTC(t *testing.T) {
+	// Block 11 is the first v2 block with starting round of 0
+	blockchain, _, currentBlock, _, _ := PrepareXDCTestBlockChainForV2Engine(t, 15, params.TestXDPoSMockChainConfigWithV2Engine, 0)
+	engineV2 := blockchain.Engine().(*XDPoS.XDPoS).EngineV2
+
+	var extraField utils.ExtraFields_v2
+	err := utils.DecodeBytesExtraFields(currentBlock.Extra(), &extraField)
+	if err != nil {
+		t.Fatal("Fail to decode extra data", err)
+	}
+
+	highestTC := &utils.TimeoutCert{
+		Round:      utils.Round(6),
+		Signatures: []utils.Signature{},
+	}
+
+	syncInfoMsg := &utils.SyncInfo{
+		HighestQuorumCert:  extraField.QuorumCert,
+		HighestTimeoutCert: highestTC,
+	}
+
+	err = engineV2.SyncInfoHandler(blockchain, syncInfoMsg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	round, _, highestQuorumCert, _ := engineV2.GetProperties()
+	assert.Equal(t, utils.Round(7), round)
+	assert.Equal(t, extraField.QuorumCert, highestQuorumCert)
 }
diff --git a/consensus/tests/timeout_test.go b/consensus/tests/timeout_test.go
index b92aa62166..bac2df4d7d 100644
--- a/consensus/tests/timeout_test.go
+++ b/consensus/tests/timeout_test.go
@@ -51,7 +51,7 @@ func TestTimeoutMessageHandlerSuccessfullyGenerateTCandSyncInfo(t *testing.T) {
 
 	// Shouldn't have QC, however, we did not inilise it, hence will show default empty value
 	qc := syncInfoMsg.(*utils.SyncInfo).HighestQuorumCert
-	assert.Nil(t, qc)
+	assert.Equal(t, utils.Round(0), qc.ProposedBlockInfo.Round)
 
 	tc := syncInfoMsg.(*utils.SyncInfo).HighestTimeoutCert
 	assert.NotNil(t, tc)
diff --git a/consensus/tests/vote_test.go b/consensus/tests/vote_test.go
index 785712a0d3..40c20748ae 100644
--- a/consensus/tests/vote_test.go
+++ b/consensus/tests/vote_test.go
@@ -35,7 +35,7 @@ func TestVoteMessageHandlerSuccessfullyGeneratedAndProcessQCForFistV2Round(t *te
 	currentRound, lockQuorumCert, highestQuorumCert, _ := engineV2.GetProperties()
 	// initialised with nil and 0 round
 	assert.Nil(t, lockQuorumCert)
-	assert.Nil(t, highestQuorumCert)
+	assert.Equal(t, utils.Round(0), highestQuorumCert.ProposedBlockInfo.Round)
 	assert.Equal(t, utils.Round(1), currentRound)
 	voteMsg = &utils.Vote{
 		ProposedBlockInfo: blockInfo,
@@ -46,7 +46,7 @@ func TestVoteMessageHandlerSuccessfullyGeneratedAndProcessQCForFistV2Round(t *te
 	currentRound, lockQuorumCert, highestQuorumCert, _ = engineV2.GetProperties()
 	// Still using the initlised value because we did not yet go to the next round
 	assert.Nil(t, lockQuorumCert)
-	assert.Nil(t, highestQuorumCert)
+	assert.Equal(t, utils.Round(0), highestQuorumCert.ProposedBlockInfo.Round)
 
 	assert.Equal(t, utils.Round(1), currentRound)
 
@@ -63,7 +63,7 @@ func TestVoteMessageHandlerSuccessfullyGeneratedAndProcessQCForFistV2Round(t *te
 	assert.Equal(t, utils.Round(0), lockQuorumCert.ProposedBlockInfo.Round)
 	// The highestQC proposedBlockInfo shall be the same as the one from its votes
 	assert.Equal(t, highestQuorumCert.ProposedBlockInfo, voteMsg.ProposedBlockInfo)
-	// Check round has now changed from 5 to 6
+	// Check round has now changed from 1 to 2
 	assert.Equal(t, utils.Round(2), currentRound)
 }
 
@@ -90,7 +90,7 @@ func TestVoteMessageHandlerSuccessfullyGeneratedAndProcessQC(t *testing.T) {
 	currentRound, lockQuorumCert, highestQuorumCert, _ := engineV2.GetProperties()
 	// initialised with nil and 0 round
 	assert.Nil(t, lockQuorumCert)
-	assert.Nil(t, highestQuorumCert)
+	assert.Equal(t, utils.Round(0), highestQuorumCert.ProposedBlockInfo.Round)
 	assert.Equal(t, utils.Round(5), currentRound)
 	voteMsg = &utils.Vote{
 		ProposedBlockInfo: blockInfo,
@@ -101,7 +101,7 @@ func TestVoteMessageHandlerSuccessfullyGeneratedAndProcessQC(t *testing.T) {
 	currentRound, lockQuorumCert, highestQuorumCert, _ = engineV2.GetProperties()
 	// Still using the initlised value because we did not yet go to the next round
 	assert.Nil(t, lockQuorumCert)
-	assert.Nil(t, highestQuorumCert)
+	assert.Equal(t, utils.Round(0), highestQuorumCert.ProposedBlockInfo.Round)
 
 	assert.Equal(t, utils.Round(5), currentRound)
 
@@ -176,7 +176,7 @@ func TestProcessVoteMsgThenTimeoutMsg(t *testing.T) {
 	currentRound, lockQuorumCert, highestQuorumCert, _ := engineV2.GetProperties()
 	// initialised with nil and 0 round
 	assert.Nil(t, lockQuorumCert)
-	assert.Nil(t, highestQuorumCert)
+	assert.Equal(t, utils.Round(0), highestQuorumCert.ProposedBlockInfo.Round)
 
 	assert.Equal(t, utils.Round(5), currentRound)
 	voteMsg = &utils.Vote{