diff --git a/source/position_sense/hdsl/firmware/hdsl_master_icssg_multichannel_ch0_bin.h b/source/position_sense/hdsl/firmware/hdsl_master_icssg_multichannel_ch0_bin.h
index b127eae..f91bfc7 100644
--- a/source/position_sense/hdsl/firmware/hdsl_master_icssg_multichannel_ch0_bin.h
+++ b/source/position_sense/hdsl/firmware/hdsl_master_icssg_multichannel_ch0_bin.h
@@ -1,5 +1,5 @@
 const uint32_t Hiperface_DSL2_0_RTU_0[] = {
-0x21077f00,
+0x21077c00,
 0x2eff8f8e,
 0x24000725,
 0x24041e8d,
@@ -62,7 +62,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x23032cd1,
 0x1d03c4c4,
 0x2302cbd1,
-0x23059d9d,
+0x23059a9d,
 0x05014545,
 0x51074514,
 0x49004502,
@@ -636,7 +636,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x79000002,
 0x2400ff1e,
 0x09017979,
-0x21051200,
+0x21050f00,
 0xd1077905,
 0xd104ff00,
 0xd703ffff,
@@ -693,7 +693,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x106d6d79,
 0x2400027b,
 0x21035700,
-0x21043d00,
+0x21043a00,
 0xd104ff00,
 0xd703ffff,
 0xd1074d03,
@@ -809,7 +809,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x91a91800,
 0x01010000,
 0x81a91800,
-0x21062f00,
+0x21062c00,
 0x20d10000,
 0x117f6666,
 0xc9066604,
@@ -887,7 +887,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x2400017b,
 0x2102b700,
 0x2400017b,
-0x21043d00,
+0x21043a00,
 0xd104ff00,
 0xd703ffff,
 0xd1077903,
@@ -915,7 +915,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x2400ff1e,
 0x09017979,
 0x2400017b,
-0x21043d00,
+0x21043a00,
 0x2eff838e,
 0x24003f00,
 0x81401800,
@@ -977,7 +977,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x686e5303,
 0x24000019,
 0x79000002,
-0x23060fd1,
+0x23060cd1,
 0x10535300,
 0x10333320,
 0x10131340,
@@ -1017,15 +1017,12 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x5100c007,
 0x1f058000,
 0x81541800,
-0x2400060d,
+0x2400080d,
 0x040d6666,
 0x23032cd1,
-0x79000017,
+0x79000014,
 0x1d058000,
 0x81541800,
-0x2400010d,
-0x000d6666,
-0x23032cd1,
 0x91541800,
 0x69fd6204,
 0x1f028000,
@@ -1186,7 +1183,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x24003001,
 0xd1066b0e,
 0x2400010d,
-0x230771d1,
+0x23076ed1,
 0x68ab8d45,
 0x13803b3b,
 0x913d1880,
@@ -1199,7 +1196,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x81531800,
 0x7900003b,
 0x2400020d,
-0x230771d1,
+0x23076ed1,
 0x688b8d38,
 0x8137184b,
 0x13803b3b,
@@ -1242,7 +1239,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x1d09c4c4,
 0x2400040d,
 0x24003001,
-0x230771d1,
+0x23076ed1,
 0x15ff8d9c,
 0x69005c34,
 0x51009c33,
@@ -1483,7 +1480,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0xd703ffff,
 0x2400001e,
 0x2400001e,
-0x2305f6d1,
+0x2305f3d1,
 0x108b8b9d,
 0x91aa1800,
 0x1f018000,
@@ -1507,7 +1504,7 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0xd703ffff,
 0x2400001e,
 0x2400001e,
-0x2305f6d1,
+0x2305f3d1,
 0x91983880,
 0x10eeeee1,
 0x24000061,
@@ -1921,5 +1918,5 @@ const uint32_t Hiperface_DSL2_0_RTU_0[] = {
 0x91003c82,
 0x1308e2e2,
 0x81003c82,
-0x21062f00};
+0x21062c00};
 
diff --git a/source/position_sense/hdsl/firmware/transport.asm b/source/position_sense/hdsl/firmware/transport.asm
index 6286c35..db55d73 100644
--- a/source/position_sense/hdsl/firmware/transport.asm
+++ b/source/position_sense/hdsl/firmware/transport.asm
@@ -285,16 +285,14 @@ transport_on_v_frame_2:
 ; set SCE2 bit in ONLINE_STATUS_2
 	set		    REG_TMP0.b0, REG_TMP0.w0, ONLINE_STATUS_2_SCE2
 	sbco		&REG_TMP0.b0, MASTER_REGS_CONST, ONLINE_STATUS_2_H, 1
-	QM_SUB		6
+	QM_SUB		8
 transport_on_v_frame_dont_update_qm_secondary_channel:
 	qba		transport_on_v_frame_2_exit
 check_for_slave_error_on_secondary_channel:
 ; clear SCE2 bit in ONLINE_STATUS_2
 	clr		    REG_TMP0.b0, REG_TMP0.w0, ONLINE_STATUS_2_SCE2
 	sbco		&REG_TMP0.b0, MASTER_REGS_CONST, ONLINE_STATUS_2_H, 1
-;CRC was correct -> add 1 to QM
-	QM_ADD		1
-; NOTE: QM_ADD uses REG_TMP0. Loading REG_TMP0 again here. It can be optimized.
+; No QM updates for CRC check success with safe channel 2
     lbco		&REG_TMP0.b0, MASTER_REGS_CONST, ONLINE_STATUS_2_H, 1
 ;check for special character: K29.7 is sent in first byte of secondary vertical channel if slave error occured
 ; assumption: r21.b3 contains the first byte of secondary vertical channel