diff --git a/analog.bak b/analog.bak
index 84d8988..d446b26 100644
--- a/analog.bak
+++ b/analog.bak
@@ -264,7 +264,8 @@ F 0 "U8" H 3250 5800 50  0000 L CNN
 F 1 "MAX11125" H 3100 5700 50  0000 L CNN
 F 2 "Housings_DFN_QFN:QFN-28-1EP_5x5mm_Pitch0.5mm" H 3300 4950 50  0001 C CNN
 F 3 "https://datasheets.maximintegrated.com/en/ds/MAX11120-MAX11128.pdf" H 3300 4950 50  0001 C CNN
-F 4 "www.mouser.com" H 3300 4900 60  0001 C CNN "Distributor1_URL"
+F 4 "MAX11125" H 3300 4900 60  0001 C CNN "MFG_PN"
+F 5 "www.mouser.com" H 3300 4900 60  0001 C CNN "Distributor1_URL"
 	1    3300 4900
 	1    0    0    -1  
 $EndComp
diff --git a/blinkey.bak b/blinkey.bak
index ee086a1..2600e22 100644
--- a/blinkey.bak
+++ b/blinkey.bak
@@ -550,7 +550,7 @@ DIP switch connected to\nBANK0 on 'gpio' sheet
 Text Notes 8000 4550 0    60   ~ 0
 To fix issues with FT231XS rev A,B,C\nShort-circuit D18 LED, but then\nboard cannot keep awake by USB.\nchip rev D works properly\nSee TN140_FT231X Errata\n
 Text GLabel 5650 5850 2    60   Input ~ 0
-WIFI_GPIO2
+WIFI_LED
 $Comp
 L LED_ALT D22
 U 1 1 5A07AFD2
@@ -792,4 +792,6 @@ F 6 "www.mouser.com" H 3100 3950 60  0001 C CNN "Distributor1_URL"
 	1    3100 3950
 	1    0    0    -1  
 $EndComp
+Text Notes 6400 5900 0    60   ~ 0
+GPIO2 on PCB v1.7
 $EndSCHEMATC
diff --git a/blinkey.sch b/blinkey.sch
index ee086a1..2600e22 100644
--- a/blinkey.sch
+++ b/blinkey.sch
@@ -550,7 +550,7 @@ DIP switch connected to\nBANK0 on 'gpio' sheet
 Text Notes 8000 4550 0    60   ~ 0
 To fix issues with FT231XS rev A,B,C\nShort-circuit D18 LED, but then\nboard cannot keep awake by USB.\nchip rev D works properly\nSee TN140_FT231X Errata\n
 Text GLabel 5650 5850 2    60   Input ~ 0
-WIFI_GPIO2
+WIFI_LED
 $Comp
 L LED_ALT D22
 U 1 1 5A07AFD2
@@ -792,4 +792,6 @@ F 6 "www.mouser.com" H 3100 3950 60  0001 C CNN "Distributor1_URL"
 	1    3100 3950
 	1    0    0    -1  
 $EndComp
+Text Notes 6400 5900 0    60   ~ 0
+GPIO2 on PCB v1.7
 $EndSCHEMATC
diff --git a/ulx3s.bak b/ulx3s.bak
index 8536007..18f0801 100644
--- a/ulx3s.bak
+++ b/ulx3s.bak
@@ -48,7 +48,7 @@ encoding utf-8
 Sheet 1 11
 Title "ULX3S"
 Date ""
-Rev "1.7.8"
+Rev "1.7.9"
 Comp "FER+RIZ+RADIONA"
 Comment1 "Root sheet"
 Comment2 ""
diff --git a/ulx3s.sch b/ulx3s.sch
index 8536007..18f0801 100644
--- a/ulx3s.sch
+++ b/ulx3s.sch
@@ -48,7 +48,7 @@ encoding utf-8
 Sheet 1 11
 Title "ULX3S"
 Date ""
-Rev "1.7.8"
+Rev "1.7.9"
 Comp "FER+RIZ+RADIONA"
 Comment1 "Root sheet"
 Comment2 ""
diff --git a/usb.bak b/usb.bak
index 1a7db8e..3969060 100644
--- a/usb.bak
+++ b/usb.bak
@@ -572,8 +572,6 @@ Connection ~ 2200 2850
 Wire Wire Line
 	2300 2600 2300 2900
 Connection ~ 2300 2750
-Text GLabel 8650 2450 0    60   Input ~ 0
-WIFI_GPIO15
 Text GLabel 8650 2550 0    60   Input ~ 0
 WIFI_GPIO16
 $Comp
@@ -732,4 +730,6 @@ Text GLabel 5000 2800 0    60   Input ~ 0
 FT2V5
 Text GLabel 5600 2500 1    60   Input ~ 0
 USB5V
+Text Notes 7800 2500 0    60   ~ 0
+WIFI_GPIO15 v1.7
 $EndSCHEMATC
diff --git a/usb.sch b/usb.sch
index 1a7db8e..3969060 100644
--- a/usb.sch
+++ b/usb.sch
@@ -572,8 +572,6 @@ Connection ~ 2200 2850
 Wire Wire Line
 	2300 2600 2300 2900
 Connection ~ 2300 2750
-Text GLabel 8650 2450 0    60   Input ~ 0
-WIFI_GPIO15
 Text GLabel 8650 2550 0    60   Input ~ 0
 WIFI_GPIO16
 $Comp
@@ -732,4 +730,6 @@ Text GLabel 5000 2800 0    60   Input ~ 0
 FT2V5
 Text GLabel 5600 2500 1    60   Input ~ 0
 USB5V
+Text Notes 7800 2500 0    60   ~ 0
+WIFI_GPIO15 v1.7
 $EndSCHEMATC
diff --git a/wifi.bak b/wifi.bak
index 9107dc6..4226d0a 100644
--- a/wifi.bak
+++ b/wifi.bak
@@ -55,17 +55,17 @@ Comment2 ""
 Comment3 ""
 Comment4 ""
 $EndDescr
-Text GLabel 7000 5900 3    60   Input ~ 0
+Text GLabel 7300 5900 3    60   Input ~ 0
 SD_D0
-Text GLabel 7100 5900 3    60   Input ~ 0
+Text GLabel 7750 5350 2    60   Input ~ 0
 SD_D1
-Text GLabel 6700 5900 3    60   Input ~ 0
+Text GLabel 6500 5850 3    60   Input ~ 0
 SD_D3
-Text GLabel 6800 5900 3    60   Input ~ 0
+Text GLabel 7200 5850 3    60   Input ~ 0
 SD_CMD
-Text GLabel 6900 5900 3    60   Input ~ 0
+Text GLabel 5900 5300 0    60   Input ~ 0
 SD_CLK
-Text GLabel 6600 5900 3    60   Input ~ 0
+Text GLabel 5900 5400 0    60   Input ~ 0
 SD_D2
 Text GLabel 7750 4550 2    60   Input ~ 0
 WIFI_RXD
@@ -224,7 +224,6 @@ Text Notes 7550 6000 0    60   ~ 0
 WiFi and SDcard connected to\nBANK6 on "usb" sheet
 Text Notes 8700 5500 0    60   ~ 0
 Strapping pins\n(avoid using to avoid\nboot problems)\nGPIO0,2,4,5,12,15
-NoConn ~ 7750 5350
 NoConn ~ 7750 5050
 Text Notes 2950 6700 0    60   ~ 0
 ESP32 ADC capable pins\nGPIO36,39,34,35,32,33,25,26,27,\nGPIO14,12,13,15 - shared with HSPI/JTAG\nConnected to BANK7 on "gpio" sheet
@@ -248,14 +247,12 @@ Text GLabel 5900 5100 0    60   Input ~ 0
 GN11
 Text GLabel 5900 5200 0    60   Input ~ 0
 GP10
-Text GLabel 5900 5300 0    60   Input ~ 0
+Text GLabel 5450 5300 0    60   Input ~ 0
 GN10
-Text GLabel 5900 5400 0    60   Input ~ 0
+Text GLabel 5450 5400 0    60   Input ~ 0
 GP9
-Text GLabel 6500 5850 3    60   Input ~ 0
+Text GLabel 6500 6250 3    60   Input ~ 0
 GN9
-Text GLabel 7200 5850 3    60   Input ~ 0
-WIFI_GPIO15
 Text GLabel 7750 5250 2    60   Input ~ 0
 WIFI_GPIO16
 $Comp
@@ -303,15 +300,17 @@ Wire Wire Line
 	6400 5850 6400 6250
 Wire Wire Line
 	4750 4250 4750 4350
-Text GLabel 7300 5850 3    60   Input ~ 0
-WIFI_GPIO2
+Text GLabel 7750 5150 2    60   Input ~ 0
+WIFI_LED
 Wire Wire Line
 	4750 4300 5900 4300
 Text Label 5550 4300 0    60   ~ 0
 WIFIEN
 Connection ~ 4750 4300
-Text Notes 1800 5450 0    60   ~ 0
+Text Notes 2050 5850 0    60   ~ 0
 GPIO12 probably should be held low at reset or disconnected\nother option is to burn flash voltage efuse for 3.3V operation\nfor GPIO2 and GPIO12 bootstrapping considerations, read\nhttps://github.com/espressif/esp-idf/tree/master/examples/storage/sd_card
-Text Notes 1800 5800 0    60   ~ 0
+Text Notes 2050 6200 0    60   ~ 0
 GPIO25,26 are DAC channels that can directly replay\naudio material over i2s bus
+Text Notes 2050 5350 0    60   ~ 0
+SD card connected according to\nArduino->Examples->ESP32->SD_MMC_Test\nhttps://github.com/espressif/esp-idf/blob/\nmaster/examples/storage/sd_card/README.md\n
 $EndSCHEMATC
diff --git a/wifi.sch b/wifi.sch
index 9107dc6..7c76596 100644
--- a/wifi.sch
+++ b/wifi.sch
@@ -55,17 +55,17 @@ Comment2 ""
 Comment3 ""
 Comment4 ""
 $EndDescr
-Text GLabel 7000 5900 3    60   Input ~ 0
+Text GLabel 7300 5850 3    60   Input ~ 0
 SD_D0
-Text GLabel 7100 5900 3    60   Input ~ 0
+Text GLabel 7750 5350 2    60   Input ~ 0
 SD_D1
-Text GLabel 6700 5900 3    60   Input ~ 0
+Text GLabel 6500 5850 3    60   Input ~ 0
 SD_D3
-Text GLabel 6800 5900 3    60   Input ~ 0
+Text GLabel 7200 5850 3    60   Input ~ 0
 SD_CMD
-Text GLabel 6900 5900 3    60   Input ~ 0
+Text GLabel 5900 5300 0    60   Input ~ 0
 SD_CLK
-Text GLabel 6600 5900 3    60   Input ~ 0
+Text GLabel 5900 5400 0    60   Input ~ 0
 SD_D2
 Text GLabel 7750 4550 2    60   Input ~ 0
 WIFI_RXD
@@ -224,7 +224,6 @@ Text Notes 7550 6000 0    60   ~ 0
 WiFi and SDcard connected to\nBANK6 on "usb" sheet
 Text Notes 8700 5500 0    60   ~ 0
 Strapping pins\n(avoid using to avoid\nboot problems)\nGPIO0,2,4,5,12,15
-NoConn ~ 7750 5350
 NoConn ~ 7750 5050
 Text Notes 2950 6700 0    60   ~ 0
 ESP32 ADC capable pins\nGPIO36,39,34,35,32,33,25,26,27,\nGPIO14,12,13,15 - shared with HSPI/JTAG\nConnected to BANK7 on "gpio" sheet
@@ -248,14 +247,12 @@ Text GLabel 5900 5100 0    60   Input ~ 0
 GN11
 Text GLabel 5900 5200 0    60   Input ~ 0
 GP10
-Text GLabel 5900 5300 0    60   Input ~ 0
+Text GLabel 5450 5300 0    60   Input ~ 0
 GN10
-Text GLabel 5900 5400 0    60   Input ~ 0
+Text GLabel 5450 5400 0    60   Input ~ 0
 GP9
-Text GLabel 6500 5850 3    60   Input ~ 0
+Text GLabel 6500 6250 3    60   Input ~ 0
 GN9
-Text GLabel 7200 5850 3    60   Input ~ 0
-WIFI_GPIO15
 Text GLabel 7750 5250 2    60   Input ~ 0
 WIFI_GPIO16
 $Comp
@@ -303,15 +300,17 @@ Wire Wire Line
 	6400 5850 6400 6250
 Wire Wire Line
 	4750 4250 4750 4350
-Text GLabel 7300 5850 3    60   Input ~ 0
-WIFI_GPIO2
+Text GLabel 7750 5150 2    60   Input ~ 0
+WIFI_LED
 Wire Wire Line
 	4750 4300 5900 4300
 Text Label 5550 4300 0    60   ~ 0
 WIFIEN
 Connection ~ 4750 4300
-Text Notes 1800 5450 0    60   ~ 0
+Text Notes 2050 5850 0    60   ~ 0
 GPIO12 probably should be held low at reset or disconnected\nother option is to burn flash voltage efuse for 3.3V operation\nfor GPIO2 and GPIO12 bootstrapping considerations, read\nhttps://github.com/espressif/esp-idf/tree/master/examples/storage/sd_card
-Text Notes 1800 5800 0    60   ~ 0
+Text Notes 2050 6200 0    60   ~ 0
 GPIO25,26 are DAC channels that can directly replay\naudio material over i2s bus
+Text Notes 2050 5350 0    60   ~ 0
+SD card connected according to\nArduino->Examples->ESP32->SD_MMC_Test\nhttps://github.com/espressif/esp-idf/blob/\nmaster/examples/storage/sd_card/README.md\n
 $EndSCHEMATC