diff --git a/src/driver/rtc6715.c b/src/driver/rtc6715.c
index 6516a68d..c16e21b2 100644
--- a/src/driver/rtc6715.c
+++ b/src/driver/rtc6715.c
@@ -57,7 +57,6 @@ static void rtc6715_power(bool is_on) {
 #elif defined(HDZGOGGLE2)
     DM5680_InternalAnalog_Power(is_on);
 #endif
-    I2C_Write(ADDR_FPGA, 0x8C, (is_on << 1)); // rf switch
 
     if (is_on) {
         usleep(200 * 1000); // wait for power stable