diff --git a/br-ext-chip-goke/board/gk7205v200/kernel/patches/51-add-usb-modem-ec200t.patch b/br-ext-chip-goke/board/gk7205v200/kernel/patches/51-add-usb-modem-ec200t.patch
new file mode 100644
index 00000000..e4123758
--- /dev/null
+++ b/br-ext-chip-goke/board/gk7205v200/kernel/patches/51-add-usb-modem-ec200t.patch
@@ -0,0 +1,18 @@
+--- a/drivers/usb/serial/option.c	2022-07-15 18:34:17.933261101 +0300
++++ b/drivers/usb/serial/option.c	2022-07-15 18:40:44.034761350 +0300
+@@ -236,6 +236,7 @@
+ /* These Quectel products use Qualcomm's vendor ID */
+ #define QUECTEL_PRODUCT_UC20			0x9003
+ #define QUECTEL_PRODUCT_UC15			0x9090
++#define QUECTEL_PRODUCT_EC200T			0x6026
+ 
+ #define QUECTEL_VENDOR_ID			0x2c7c
+ /* These Quectel products use Quectel's vendor ID */
+@@ -1184,6 +1185,7 @@
+ 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+ 	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25),
+ 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
++	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },
+ 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
+ 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
+ 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003),