diff --git a/client/builders.go b/client/builders.go
index 17f0a8d6..562d7ccd 100644
--- a/client/builders.go
+++ b/client/builders.go
@@ -103,16 +103,7 @@ func (c *QQClient) buildLoginPacket() (uint16, []byte) {
 		tlv.T525(tlv.T536([]byte{0x01, 0x00})),
 	)
 	if wrapper.DandelionEnergy != nil {
-		salt := binary.NewWriterF(func(w *binary.Writer) {
-			//  util.int64_to_buf(bArr42, 0, (int) uin2);
-			//  util.int16_to_buf(bArr42, 4, u.guid.length); // 故意的还是不小心的
-			w.Write(binary.NewWriterF(func(w *binary.Writer) { w.WriteUInt64(uint64(c.Uin)) })[:4])
-			w.WriteBytesShort(c.Device().Guid)
-			w.WriteBytesShort([]byte(c.version().SdkVersion))
-			w.WriteUInt32(9) // sub command
-			w.WriteUInt32(0) // 被演了
-		})
-		if t544 := tlv.T544Custom(uint64(c.Uin), "810_9", salt, wrapper.DandelionEnergy); t544 != nil {
+		if t544 := tlv.T544v2(uint64(c.Uin), "810_9", 9, c.version().SdkVersion, c.Device().Guid, wrapper.DandelionEnergy); t544 != nil {
 			t.Append(t544)
 		}
 	}
@@ -317,6 +308,11 @@ func (c *QQClient) buildCaptchaPacket(result string, sign []byte) (uint16, []byt
 	if c.sig.T547 != nil {
 		t.Append(tlv.T(0x547, c.sig.T547))
 	}
+	if wrapper.DandelionEnergy != nil {
+		if t544 := tlv.T544(uint64(c.Uin), "810_2", 2, c.version().SdkVersion, c.Device().Guid, wrapper.DandelionEnergy); t544 != nil {
+			t.Append(t544)
+		}
+	}
 	req := c.buildOicqRequestPacket(c.Uin, 0x0810, t)
 	r := network.Request{
 		Type:        network.RequestTypeLogin,
@@ -463,6 +459,13 @@ func (c *QQClient) buildRequestTgtgtNopicsigPacket() (uint16, []byte) {
 			tlv.T525(tlv.T536([]byte{0x01, 0x00})),
 		},
 	}
+
+	if wrapper.DandelionEnergy != nil {
+		if t544 := tlv.T544v2(uint64(c.Uin), "810_f", 15, c.version().SdkVersion, c.Device().Guid, wrapper.DandelionEnergy); t544 != nil {
+			t.Append(t544)
+		}
+	}
+
 	if c.Device().QImei16 != "" {
 		t.Append(tlv.T545([]byte(c.Device().QImei16)))
 	} else {
@@ -545,6 +548,11 @@ func (c *QQClient) buildRequestChangeSigPacket(changeD2 bool) (uint16, []byte) {
 		}),
 		tlv.T202(c.Device().WifiBSSID, c.Device().WifiSSID),
 	)
+	if wrapper.DandelionEnergy != nil && t.Command == 10 {
+		if t544 := tlv.T544v2(uint64(c.Uin), "810_a", 10, c.version().SdkVersion, c.Device().Guid, wrapper.DandelionEnergy); t544 != nil {
+			t.Append(t544)
+		}
+	}
 	req := c.buildOicqRequestPacket(c.Uin, 0x0810, t)
 	req2 := network.Request{
 		Type:        network.RequestTypeLogin,
diff --git a/client/global.go b/client/global.go
index 9ce718e7..cf90ad48 100644
--- a/client/global.go
+++ b/client/global.go
@@ -92,14 +92,14 @@ func GenIMEI() string {
 	randGen := rand.New(rand.NewSource(time.Now().UnixNano()))
 	for i := 0; i < 14; i++ { // generating all the base digits
 		toAdd := randGen.Intn(10)
-		if (i+1)%2 == 0 { // special proc for every 2nd one
+		fmt.Fprintf(&final, "%d", toAdd) // printing them here!
+		if (i+1)%2 == 0 {                // special proc for every 2nd one
 			toAdd *= 2
 			if toAdd >= 10 {
 				toAdd = (toAdd % 10) + 1
 			}
 		}
-		sum += toAdd
-		fmt.Fprintf(&final, "%d", toAdd) // and even printing them here!
+		sum += toAdd // and even add them here!
 	}
 	ctrlDigit := (sum * 9) % 10 // calculating the control digit
 	fmt.Fprintf(&final, "%d", ctrlDigit)
diff --git a/client/internal/auth/auth.go b/client/internal/auth/auth.go
index 1a91754a..1ee577d8 100644
--- a/client/internal/auth/auth.go
+++ b/client/internal/auth/auth.go
@@ -59,17 +59,19 @@ var (
 		},
 		AndroidWatch: {
 			ApkId:           "com.tencent.qqlite",
-			AppId:           537064446,
-			SubAppId:        537064446,
-			SortVersionName: "2.0.5",
+			AppId:           537065138,
+			SubAppId:        537065138,
+			SortVersionName: "2.0.8",
 			BuildTime:       1559564731,
 			ApkSign:         []byte{0xA6, 0xB7, 0x45, 0xBF, 0x24, 0xA2, 0xC2, 0x77, 0x52, 0x77, 0x16, 0xF6, 0xF3, 0x6E, 0xB6, 0x8D},
-			SdkVersion:      "6.0.0.236",
+			SdkVersion:      "6.0.0.2365",
 			SSOVersion:      5,
 			MiscBitmap:      16252796,
 			SubSigmap:       0x10400,
-			MainSigMap:      WLOGIN_STWEB | WLOGIN_A2 | WLOGIN_ST | WLOGIN_SKEY | WLOGIN_D2 | WLOGIN_PSKEY | WLOGIN_DA2, // 34869472
-			Protocol:        AndroidWatch,
+			MainSigMap: WLOGIN_A5 | WLOGIN_RESERVED | WLOGIN_STWEB | WLOGIN_A2 | WLOGIN_ST |
+				WLOGIN_LSKEY | WLOGIN_SKEY | WLOGIN_SIG64 | 1<<16 | WLOGIN_VKEY | WLOGIN_D2 |
+				WLOGIN_SID | WLOGIN_PSKEY | WLOGIN_AQSIG | WLOGIN_LHSIG | WLOGIN_PAYTOKEN, // 16724722
+			Protocol: AndroidWatch,
 		},
 		IPad: {
 			ApkId:           "com.tencent.minihd.qq",
@@ -165,7 +167,7 @@ type AppVersion struct {
 }
 
 func (v *AppVersion) String() string {
-	return fmt.Sprintf("%s %s - %v", v.Protocol.String(), v.SortVersionName, v.BuildTime)
+	return fmt.Sprintf("%s %s", v.Protocol.String(), v.SortVersionName)
 }
 
 func (v *AppVersion) UpdateFromJson(d []byte) error {
diff --git a/client/internal/auth/qimei.go b/client/internal/auth/qimei.go
index 7685cb17..5694330d 100644
--- a/client/internal/auth/qimei.go
+++ b/client/internal/auth/qimei.go
@@ -63,6 +63,9 @@ func (info *Device) RequestQImei() {
 		return
 	}
 	encryptedResponse, _ := base64.StdEncoding.DecodeString(gjson.GetBytes(resp, "data").String())
+	if len(encryptedResponse) == 0 {
+		return
+	}
 	decryptedResponse := aesDecrypt(encryptedResponse, []byte(cryptKey))
 	info.QImei16 = gjson.GetBytes(decryptedResponse, "q16").String()
 	info.QImei36 = gjson.GetBytes(decryptedResponse, "q36").String()
@@ -115,14 +118,7 @@ func genRandomPayloadByDevice(info *Device) map[string]any {
 		seed += int64(b)
 	}
 	fixedRand := rand.New(rand.NewSource(seed))
-	years := now.Year()
-	month := now.Month()
-	if month == 1 {
-		years--
-		month = 12
-	} else {
-		month--
-	}
+
 	reserved := map[string]string{
 		"harmony":    "0",
 		"clone":      "0",
@@ -130,7 +126,7 @@ func genRandomPayloadByDevice(info *Device) map[string]any {
 		"oz":         "UhYmelwouA+V2nPWbOvLTgN2/m8jwGB+yUB5v9tysQg=",
 		"oo":         "Xecjt+9S1+f8Pz2VLSxgpw==",
 		"kelong":     "0",
-		"uptimes":    time.Date(years, month, fixedRand.Intn(27)+1, fixedRand.Intn(60), fixedRand.Intn(60), fixedRand.Intn(60), fixedRand.Intn(1e9), now.Location()).Format("2006-01-02 15:04:05"),
+		"uptimes":    time.Unix(now.Unix()-fixedRand.Int63n(14400), 0).Format(time.DateTime),
 		"multiUser":  "0",
 		"bod":        string(info.Board),
 		"brd":        string(info.Brand),
diff --git a/client/internal/network/transport.go b/client/internal/network/transport.go
index caa5bbed..380155cc 100644
--- a/client/internal/network/transport.go
+++ b/client/internal/network/transport.go
@@ -42,7 +42,10 @@ func (t *Transport) packBody(req *Request, w *binary.Writer) {
 		w.WriteUInt16(uint16(len(t.Sig.Ksid)) + 2)
 		w.Write(t.Sig.Ksid)
 	}
-	w.WriteUInt32(0x04)
+
+	w.WriteUInt32(0x04 + uint32(len(t.Device.QImei16)))
+	w.Write([]byte(t.Device.QImei16))
+
 	w.WriteUInt32At(pos, uint32(w.Len()-pos))
 
 	w.WriteUInt32(uint32(len(req.Body) + 4))
diff --git a/internal/tlv/t544.go b/internal/tlv/t544.go
index fd71f6f8..8e3e3221 100644
--- a/internal/tlv/t544.go
+++ b/internal/tlv/t544.go
@@ -11,14 +11,19 @@ func T544(userId uint64, moduleId string, subCmd uint32, sdkVersion string, guid
 		w.WriteBytesShort([]byte(sdkVersion))
 		w.WriteUInt32(subCmd)
 	})
-	sign, err := signer(userId, moduleId, salt)
-	if err != nil {
-		return nil
-	}
-	return binary.NewWriterF(func(w *binary.Writer) {
-		w.WriteUInt16(0x544)
-		w.WriteBytesShort(sign)
+	return T544Custom(userId, moduleId, salt, signer)
+}
+
+func T544v2(userId uint64, moduleId string, subCmd uint32, sdkVersion string, guid []byte, signer func(uint64, string, []byte) ([]byte, error)) []byte {
+	salt := binary.NewWriterF(func(w *binary.Writer) {
+		// w.Write(binary.NewWriterF(func(w *binary.Writer) { w.WriteUInt64(userId) })[:4])
+		w.WriteUInt32(0)
+		w.WriteBytesShort(guid)
+		w.WriteBytesShort([]byte(sdkVersion))
+		w.WriteUInt32(subCmd)
+		w.WriteUInt32(0)
 	})
+	return T544Custom(userId, moduleId, salt, signer)
 }
 
 func T544Custom(userId uint64, moduleId string, salt []byte, signer func(uint64, string, []byte) ([]byte, error)) []byte {