diff --git a/ac101.c b/ac101.c
index 3a95203..bdc9882 100644
--- a/ac101.c
+++ b/ac101.c
@@ -782,8 +782,8 @@ static struct snd_kcontrol_new ac101_controls[] = {
 	SOC_DOUBLE_TLV("DAC volume", DAC_VOL_CTRL, DAC_VOL_L, DAC_VOL_R, 0xff, 0, dac_vol_tlv),
 	SOC_DOUBLE_TLV("DAC mixer gain", DAC_MXR_GAIN, DACL_MXR_GAIN, DACR_MXR_GAIN, 0xf, 0, dac_mix_vol_tlv),
 	SOC_SINGLE_TLV("digital volume", DAC_DBG_CTRL, DVC, 0x3f, 1, dig_vol_tlv),
-	SOC_SINGLE_TLV("speaker volume", SPKOUT_CTRL, SPK_VOL, 0x1f, 0, speaker_vol_tlv),
-	SOC_SINGLE_TLV("headphone volume", HPOUT_CTRL, HP_VOL, 0x3f, 0, headphone_vol_tlv),
+	SOC_SINGLE_TLV("Speaker Playback Volume", SPKOUT_CTRL, SPK_VOL, 0x1f, 0, speaker_vol_tlv),
+	SOC_SINGLE_TLV("Headphone Playback Volume", HPOUT_CTRL, HP_VOL, 0x3f, 0, headphone_vol_tlv),
 };
 
 /* PLL divisors */
diff --git a/ac108_6mic.state b/ac108_6mic.state
index bdbe64a..61e691a 100644
--- a/ac108_6mic.state
+++ b/ac108_6mic.state
@@ -338,7 +338,7 @@ state.seeed8micvoicec {
 	}
 	control.20 {
 		iface MIXER
-		name 'speaker volume'
+		name 'Speaker Playback Volume'
 		value 25
 		comment {
 			access 'read write'
@@ -352,7 +352,7 @@ state.seeed8micvoicec {
 	}
 	control.21 {
 		iface MIXER
-		name 'headphone volume'
+		name 'Headphone Playback Volume'
 		value 52
 		comment {
 			access 'read write'
diff --git a/install.sh b/install.sh
index 1d8370b..8c84be9 100755
--- a/install.sh
+++ b/install.sh
@@ -68,7 +68,7 @@ function get_kernel_version() {
     ZIMAGE=/boot/kernel.img
     [ -f /boot/firmware/vmlinuz ] && ZIMAGE=/boot/firmware/vmlinuz
     IMG_OFFSET=$(LC_ALL=C grep -abo $'\x1f\x8b\x08\x00' $ZIMAGE | head -n 1 | cut -d ':' -f 1)
-    _VER_RUN=$(dd if=$ZIMAGE obs=64K ibs=4 skip=$(( IMG_OFFSET / 4)) | zcat | grep -a -m1 "Linux version" | strings | awk '{ print $3; }')
+    _VER_RUN=$(dd if=$ZIMAGE obs=64K ibs=4 skip=$(( IMG_OFFSET / 4)) 2>/dev/null | zcat | grep -a -m1 "Linux version" | strings | awk '{ print $3; }')
   }
   echo "$_VER_RUN"
   return 0
diff --git a/uninstall.sh b/uninstall.sh
index a00f7a1..adbebfc 100755
--- a/uninstall.sh
+++ b/uninstall.sh
@@ -69,6 +69,7 @@ echo "remove alsa configs"
 rm -rf  /etc/voicecard/ || true
 
 echo "disabled seeed-voicecard.service "
+systemctl stop seeed-voicecard.service
 systemctl disable seeed-voicecard.service 
 
 echo "remove seeed-voicecard"