diff --git a/firmware/lib/net.cpp b/firmware/lib/net.cpp
index af82c8f..b5dd7eb 100644
--- a/firmware/lib/net.cpp
+++ b/firmware/lib/net.cpp
@@ -283,10 +283,7 @@ bool net_init() {
 
     w6300::open_socket(raw_socket, w6300::protocol::macraw, w6300::port_num{0}, w6300::sock_flag::none);
     w6300::set_socket_io_mode(raw_socket, w6300::sock_io_mode::nonblock);
-    // CHECK START
-    w6300::set_socket_interrupt_mask(raw_socket, 0x04);
     w6300::set_interrupt_mask(w6300::ik_sock_0);
-    // CHECK END
 
     return true;
 }
diff --git a/firmware/w6300/w6300.cpp b/firmware/w6300/w6300.cpp
index ed368f3..43bb48f 100644
--- a/firmware/w6300/w6300.cpp
+++ b/firmware/w6300/w6300.cpp
@@ -71,7 +71,6 @@ void pio_init() {
         gpio_put(pin, false);
     }
     gpio_init(PIN_CS);
-    // CHECK START
     gpio_set_dir(PIN_CS, GPIO_OUT);
     gpio_put(PIN_CS, true);
     gpio_init(PIN_INT);
@@ -79,7 +78,6 @@ void pio_init() {
     gpio_pull_up(PIN_INT);
     gpio_set_irq_enabled_with_callback(PIN_INT, GPIO_IRQ_EDGE_FALL, true,
         [](uint, uint32_t){});
-    // CHECK END
 
     pio_hw_t *pios[2] = {pio0, pio1};
     uint pio_index = 1;
@@ -826,15 +824,9 @@ inline uint16_t get_sn_rx_wr(uint8_t sn) { return ((uint16_t)reg_read(REG_SN_RX_
 static critical_section_t g_cris_sec;
 
 void cris_enter() {
-    // CHECK START
-    // critical_section_enter_blocking(&g_cris_sec);
-    // CHECK END
 }
 
 void cris_exit() {
-    // CHECK START
-    // critical_section_exit(&g_cris_sec);
-    // CHECK END
 }
 
 static uint8_t make_opcode(uint32_t addr, uint8_t rw) {
@@ -1655,10 +1647,6 @@ void init_net(const net_info& info) {
     set_net_info(info);
 }
 
-void enable_interrupt_pin() {
-    chip_unlock();
-    set_sycr1(get_sycr1() | SYCR1_IEN);
-}
 
 std::expected<void, sock_error> set_socket_io_mode(socket_id sid, sock_io_mode mode) {
     uint8_t sn = static_cast<uint8_t>(sid);
diff --git a/firmware/w6300/w6300.h b/firmware/w6300/w6300.h
index b956041..212431b 100644
--- a/firmware/w6300/w6300.h
+++ b/firmware/w6300/w6300.h
@@ -195,7 +195,6 @@ int8_t init_buffers(std::span<const uint8_t> txsize, std::span<const uint8_t> rx
 void clear_interrupt(intr_kind intr);
 intr_kind get_interrupt();
 void set_interrupt_mask(intr_kind intr);
-void enable_interrupt_pin();
 intr_kind get_interrupt_mask();
 
 int8_t get_phy_link();