diff --git a/common/config/config.go b/common/config/config.go
index ed9dacf5c..326f864bd 100644
--- a/common/config/config.go
+++ b/common/config/config.go
@@ -180,7 +180,6 @@ func GetDefaultParams() *Configuration {
 			MaxInactiveRoundsOfRandomNode:     36 * 8,
 			RevertToPOWNoBlockTime:            12 * 3600,
 			StopConfirmBlockTime:              11 * 3600,
-			RevertToPOWV1Height:               math.MaxUint32, // todo complete me
 			RevertToPOWNoBlockTimeV1:          2 * 3600,       // todo complete me
 			StopConfirmBlockTimeV1:            6600,           // todo complete me
 			ChangeViewV1Height:                math.MaxUint32, // todo complete me
@@ -364,10 +363,9 @@ func (p *Configuration) TestNet() *Configuration {
 	p.MaxReservedCustomIDLength = 255
 	p.DPoSConfiguration.RevertToPOWNoBlockTime = 12 * 3600
 	p.DPoSConfiguration.StopConfirmBlockTime = 11 * 3600
-	p.DPoSConfiguration.RevertToPOWV1Height = math.MaxUint32 // todo complete me
-	p.DPoSConfiguration.RevertToPOWNoBlockTimeV1 = 2 * 3600  // todo complete me
-	p.DPoSConfiguration.StopConfirmBlockTimeV1 = 6600        // todo complete me
-	p.DPoSConfiguration.ChangeViewV1Height = math.MaxUint32  // todo complete me
+	p.DPoSConfiguration.RevertToPOWNoBlockTimeV1 = 2 * 3600 // todo complete me
+	p.DPoSConfiguration.StopConfirmBlockTimeV1 = 6600       // todo complete me
+	p.DPoSConfiguration.ChangeViewV1Height = math.MaxUint32 // todo complete me
 	p.DPoSConfiguration.RevertToPOWStartHeight = 815060
 	p.HalvingRewardHeight = 877880    //767000 + 154 * 720
 	p.HalvingRewardInterval = 1051200 //4 * 365 * 720
@@ -492,10 +490,9 @@ func (p *Configuration) RegNet() *Configuration {
 	p.MaxReservedCustomIDLength = 255
 	p.DPoSConfiguration.RevertToPOWNoBlockTime = 12 * 3600
 	p.DPoSConfiguration.StopConfirmBlockTime = 11 * 3600
-	p.DPoSConfiguration.RevertToPOWV1Height = math.MaxUint32 // todo complete me
-	p.DPoSConfiguration.RevertToPOWNoBlockTimeV1 = 2 * 3600  // todo complete me
-	p.DPoSConfiguration.StopConfirmBlockTimeV1 = 6600        // todo complete me
-	p.DPoSConfiguration.ChangeViewV1Height = math.MaxUint32  // todo complete me
+	p.DPoSConfiguration.RevertToPOWNoBlockTimeV1 = 2 * 3600 // todo complete me
+	p.DPoSConfiguration.StopConfirmBlockTimeV1 = 6600       // todo complete me
+	p.DPoSConfiguration.ChangeViewV1Height = math.MaxUint32 // todo complete me
 	p.DPoSConfiguration.RevertToPOWStartHeight = 706240
 	p.HalvingRewardHeight = 801240    //690360 + 154 * 720
 	p.HalvingRewardInterval = 1051200 //4 * 365 * 720
@@ -733,8 +730,6 @@ type DPoSConfiguration struct {
 	RevertToPOWNoBlockTime int64 `screw:"--reverttopownoblocktime" usage:"defines how long time does it take to revert to POW mode"`
 	// StopConfirmBlockTime defines how long time dose it take before stop confirm block.
 	StopConfirmBlockTime int64 `screw:"--stopconfirmblocktime" usage:"defines how long time does it take to stop confirm block"`
-	// RevertToPOWV1Height defines how the height of POW mode of version 1.0
-	RevertToPOWV1Height uint32 `screw:"--reverttopowv1height" usage:"defines how the height of POW mode of version 1.0"`
 	// RevertToPOWInterval defines how long time does it take to revert to POW mode.
 	RevertToPOWNoBlockTimeV1 int64 `screw:"--reverttopownoblocktimev1" usage:"defines how long time does it take to revert to POW mode"`
 	// StopConfirmBlockTime defines how long time dose it take before stop confirm block.
@@ -930,9 +925,8 @@ func (p *Configuration) newRewardPerBlock(targetTimePerBlock time.Duration, heig
 	generatedBlocksPerYear := 365 * 24 * 60 * 60 / blockGenerateInterval
 	factor := uint32(1)
 	if height >= p.HalvingRewardHeight {
-		factor = 2 + (height-p.HalvingRewardHeight)/p.HalvingRewardInterval
+		factor = 2 + (height-p.HalvingRewardHeight)/p.HalvingRewardInterval // HalvingRewardHeight: 1051200
 	}
-
 	return common.Fixed64(float64(newInflationPerYear) / float64(generatedBlocksPerYear) / math.Pow(2, float64(factor-1)))
 }
 
diff --git a/core/transaction/illegalproposaltransaction.go b/core/transaction/illegalproposaltransaction.go
index 40717f5a0..cbc9403ed 100644
--- a/core/transaction/illegalproposaltransaction.go
+++ b/core/transaction/illegalproposaltransaction.go
@@ -26,8 +26,7 @@ func (t *IllegalProposalTransaction) HeightVersionCheck() error {
 
 	if blockHeight < chainParams.DPoSConfiguration.ChangeViewV1Height {
 		return errors.New(fmt.Sprintf("not support %s transaction "+
-			"with payload version %d after IllegalV2Height",
-			t.TxType().Name(), t.PayloadVersion()))
+			"before ChangeViewV1Height", t.TxType().Name()))
 	}
 	return nil
 }
diff --git a/core/transaction/reverttopowtransaction.go b/core/transaction/reverttopowtransaction.go
index ba6f1ed23..3db25c6d8 100644
--- a/core/transaction/reverttopowtransaction.go
+++ b/core/transaction/reverttopowtransaction.go
@@ -82,7 +82,7 @@ func (t *RevertToPOWTransaction) SpecialContextCheck() (result elaerr.ELAError,
 		lastBlockTime := int64(t.parameters.BlockChain.BestChain.Timestamp)
 
 		var noBlockTime int64
-		if t.parameters.BlockHeight < t.parameters.Config.DPoSConfiguration.RevertToPOWV1Height {
+		if t.parameters.BlockHeight < t.parameters.Config.DPoSConfiguration.ChangeViewV1Height {
 			noBlockTime = t.parameters.Config.DPoSConfiguration.RevertToPOWNoBlockTime
 		} else {
 			noBlockTime = t.parameters.Config.DPoSConfiguration.RevertToPOWNoBlockTimeV1
diff --git a/dpos/arbitrator.go b/dpos/arbitrator.go
index edae3230a..92a3851a6 100644
--- a/dpos/arbitrator.go
+++ b/dpos/arbitrator.go
@@ -206,10 +206,10 @@ func (a *Arbitrator) OnBlockReceived(b *types.Block, confirmed bool) {
 		localTimestamp := a.cfg.Chain.TimeSource.AdjustedTime().Unix()
 
 		var stopConfirmTime int64
-		if b.Height < a.cfg.ChainParams.DPoSConfiguration.RevertToPOWV1Height {
+		if b.Height < a.cfg.ChainParams.DPoSConfiguration.ChangeViewV1Height {
 			stopConfirmTime = a.cfg.ChainParams.DPoSConfiguration.StopConfirmBlockTime
 		} else {
-			stopConfirmTime = a.cfg.ChainParams.DPoSConfiguration.StopConfirmBlockTime
+			stopConfirmTime = a.cfg.ChainParams.DPoSConfiguration.StopConfirmBlockTimeV1
 		}
 
 		if localTimestamp-lastBlockTimestamp >= stopConfirmTime {
diff --git a/dpos/manager/consensus.go b/dpos/manager/consensus.go
index 5733c75dc..b2e9143da 100644
--- a/dpos/manager/consensus.go
+++ b/dpos/manager/consensus.go
@@ -19,7 +19,7 @@ const (
 	consensusReady = iota
 	consensusRunning
 
-	DefaultViewOffset = 10
+	DefaultViewOffset = 0
 )
 
 type Consensus struct {
diff --git a/pow/revertlistener.go b/pow/revertlistener.go
index 87e8e4c9f..d0ca7b3d8 100644
--- a/pow/revertlistener.go
+++ b/pow/revertlistener.go
@@ -31,7 +31,7 @@ func (pow *Service) ListenForRevert() {
 			lastBlockTimestamp := int64(pow.arbiters.GetLastBlockTimestamp())
 			localTimestamp := pow.chain.TimeSource.AdjustedTime().Unix()
 			var noBlockTime int64
-			if currentHeight < pow.chainParams.DPoSConfiguration.RevertToPOWV1Height {
+			if currentHeight < pow.chainParams.DPoSConfiguration.ChangeViewV1Height {
 				noBlockTime = pow.chainParams.DPoSConfiguration.RevertToPOWNoBlockTime
 			} else {
 				noBlockTime = pow.chainParams.DPoSConfiguration.RevertToPOWNoBlockTimeV1