diff --git a/avr/usbload/crc.c b/avr/usbload/crc.c
index b8f6123..19b37a7 100644
--- a/avr/usbload/crc.c
+++ b/avr/usbload/crc.c
@@ -91,31 +91,13 @@ uint16_t crc_check_bulk_memory(uint32_t bottom_addr, uint32_t top_addr, uint32_t
 
 
 
-void crc_check_memory(uint32_t bottom_addr,uint32_t top_addr,uint32_t bank_size,uint8_t *buffer)
-{
-    uint16_t crc = 0;
-    uint32_t addr;
-    uint8_t req_bank = 0;
-    for (addr = bottom_addr; addr < top_addr; addr += TRANSFER_BUFFER_SIZE) {
-        if (addr && addr % bank_size == 0) {
-            debug(DEBUG_CRC,"crc_check_memory: bank=0x%02x addr=0x%08lx crc=0x%04x\n",
-                req_bank,addr,crc);
-            req_bank++;
-            crc = 0;
-        }
-        sram_read_buffer(addr, buffer, TRANSFER_BUFFER_SIZE);
-        crc = do_crc_update(crc, buffer, TRANSFER_BUFFER_SIZE);
-    }
-}
-
-
 
 uint16_t crc_check_memory_range(uint32_t start_addr, uint32_t size,uint8_t *buffer)
 {
     uint16_t crc = 0;
     uint32_t addr;
     for (addr = start_addr; addr < start_addr + size; addr += TRANSFER_BUFFER_SIZE) {
-        sram_read_buffer(addr, buffer, TRANSFER_BUFFER_SIZE);
+        sram_bulk_read_buffer(addr, buffer, TRANSFER_BUFFER_SIZE);
         crc = do_crc_update(crc, buffer, TRANSFER_BUFFER_SIZE);
     }
     return crc;
diff --git a/avr/usbload/crc.h b/avr/usbload/crc.h
index 2aac33f..7ec3f09 100644
--- a/avr/usbload/crc.h
+++ b/avr/usbload/crc.h
@@ -29,7 +29,6 @@
 uint16_t crc_xmodem_update(uint16_t crc, uint8_t data);
 uint16_t do_crc(uint8_t * data,uint16_t size);
 uint16_t do_crc_update(uint16_t crc,uint8_t * data,uint16_t size);
-void crc_check_memory(uint32_t bottom_addr,uint32_t top_addr,uint32_t bank_size,uint8_t *buffer);
 uint16_t crc_check_memory_range(uint32_t start_addr, uint32_t size,uint8_t *buffer);
 uint16_t crc_check_bulk_memory(uint32_t bottom_addr, uint32_t bank_size,uint32_t top_addr);
 
diff --git a/avr/usbload/main.c b/avr/usbload/main.c
index dd70d27..01c81ce 100644
--- a/avr/usbload/main.c
+++ b/avr/usbload/main.c
@@ -309,6 +309,7 @@ void boot_startup_rom()
 #endif
 }
 
+
 int main(void)
 {
 
@@ -348,11 +349,11 @@ int main(void)
         }
         shared_memory_write(SHARED_MEM_TX_CMD_TERMINATE, 0);
         info("USB poll done\n");
-        snes_reset_hi();
-        snes_reset_off();
-        snes_irq_lo();
-        snes_irq_off();
-        info("IRQ off\n");
+        //snes_reset_hi();
+        //snes_reset_off();
+        //snes_irq_lo();
+        //snes_irq_off();
+        //info("IRQ off\n");
         set_rom_mode();
         snes_wr_disable();
         info("Disable snes WR\n");
diff --git a/avr/usbload/sram.c b/avr/usbload/sram.c
index 7486b75..a01e9ea 100644
--- a/avr/usbload/sram.c
+++ b/avr/usbload/sram.c
@@ -309,27 +309,3 @@ void sram_bulk_set(uint32_t addr, uint32_t len,uint8_t value){
     sram_bulk_write_end();
 }
 
-void sram_read_buffer(uint32_t addr, uint8_t * dst, uint32_t len)
-{
-
-    uint32_t i;
-    uint8_t *ptr = dst;
-    debug(DEBUG_SRAM,"sram_read_buffer: addr=0x%08lx dst=0x%p len=%li\n\r", addr,dst,len);
-    for (i = addr; i < (addr + len); i++) {
-        *ptr = sram_read(i);
-        ptr++;
-    }
-}
-
-
-uint8_t sram_check(uint8_t * buffer, uint32_t len)
-{
-    uint16_t cnt;
-    debug(DEBUG_SRAM,"sram_check: len=%li\n\r",len);
-    for (cnt = 0; cnt < len; cnt++)
-        if (buffer[cnt])
-            return 1;
-    return 0;
-}
-
-
diff --git a/avr/usbload/sram.h b/avr/usbload/sram.h
index 0d7ce23..7c8ee9a 100644
--- a/avr/usbload/sram.h
+++ b/avr/usbload/sram.h
@@ -186,7 +186,6 @@ void sreg_set(uint32_t addr);
 
 uint8_t sram_read(uint32_t addr);
 void sram_write(uint32_t addr, uint8_t data);
-void sram_read_buffer(uint32_t addr,uint8_t *dst, uint32_t len);
 
 void sram_bulk_read_start(uint32_t addr);
 inline void sram_bulk_read_next(void);