diff --git a/src/mainboard/google/brox/Kconfig b/src/mainboard/google/brox/Kconfig
index da73be5642..23cd594e20 100644
--- a/src/mainboard/google/brox/Kconfig
+++ b/src/mainboard/google/brox/Kconfig
@@ -100,7 +100,6 @@ config BOARD_GOOGLE_CABOC
 	select BOARD_GOOGLE_BASEBOARD_BROX
 	select CHROMEOS_WIFI_SAR if CHROMEOS
 	select DRIVERS_WWAN_FM350GL
-	select HAVE_PCIE_WWAN
 	select HAVE_WWAN_POWER_SEQUENCE
 	select MAINBOARD_HAS_GOOGLE_STRAUSS_KEYBOARD
 	select RT8168_GEN_ACPI_POWER_RESOURCE
diff --git a/src/mainboard/google/brox/variants/caboc/include/variant/gpio.h b/src/mainboard/google/brox/variants/caboc/include/variant/gpio.h
index 8fbc069648..d347707456 100644
--- a/src/mainboard/google/brox/variants/caboc/include/variant/gpio.h
+++ b/src/mainboard/google/brox/variants/caboc/include/variant/gpio.h
@@ -5,8 +5,8 @@
 
 #include <baseboard/gpio.h>
 
-#define T1_OFF_MS	16
-#define T2_OFF_MS	2
+#define T1_OFF_MS	20
+#define T2_OFF_MS	10
 #define WWAN_FCPO	GPP_F21
 #define WWAN_RST	GPP_D19
 #define WWAN_PERST	GPP_A21
diff --git a/src/mainboard/google/brox/wwan_power.asl b/src/mainboard/google/brox/wwan_power.asl
index f19a5ef4e9..2855e3cfbe 100644
--- a/src/mainboard/google/brox/wwan_power.asl
+++ b/src/mainboard/google/brox/wwan_power.asl
@@ -7,6 +7,10 @@ Method (MPTS, 1)
 #if CONFIG(HAVE_PCIE_WWAN)
 	\_SB.PCI0.CTXS(WWAN_PERST);
 	Sleep(T1_OFF_MS)
+#endif
+#if CONFIG(BOARD_GOOGLE_CABOC)
+	\_SB.PCI0.STXS(WWAN_PERST);
+	Sleep(T1_OFF_MS)
 #endif
 	\_SB.PCI0.CTXS(WWAN_RST);
 	Sleep(T2_OFF_MS)