diff --git a/bootloaders/eboot/eboot.elf b/bootloaders/eboot/eboot.elf
index 08536aa72..36c480fe0 100755
Binary files a/bootloaders/eboot/eboot.elf and b/bootloaders/eboot/eboot.elf differ
diff --git a/cores/esp8266/Updater.cpp b/cores/esp8266/Updater.cpp
index 4d9dca9e2..cfce272a8 100644
--- a/cores/esp8266/Updater.cpp
+++ b/cores/esp8266/Updater.cpp
@@ -114,8 +114,12 @@ bool UpdaterClass::end(bool evenIfRemaining){
 bool UpdaterClass::_writeBuffer(){
   noInterrupts();
   int rc = SPIEraseSector(_currentAddress/FLASH_SECTOR_SIZE);
-  if (!rc) {
+  interrupts();
+  yield();
+  if(!rc){
+    noInterrupts();
     rc = SPIWrite(_currentAddress, _buffer, _bufferLen);
+    interrupts();
   }
   interrupts();
   if (rc) {
diff --git a/tools/espota.py b/tools/espota.py
index dbd22eb45..01d79d558 100755
--- a/tools/espota.py
+++ b/tools/espota.py
@@ -48,12 +48,14 @@ def serve(remoteAddr, remotePort, filename):
     sys.stderr.write('Uploading')
     sys.stderr.flush()
     while True:
-      chunk = f.read(4096)
+      chunk = f.read(1460)
       if not chunk: break
       sys.stderr.write('.')
       sys.stderr.flush()
+      connection.settimeout(10)
       try:
         connection.sendall(chunk)
+        res = connection.recv(4)
       except:
         print('\nError Uploading', file=sys.stderr)
         connection.close()
diff --git a/tools/sdk/include/ip_addr.h b/tools/sdk/include/ip_addr.h
index fc488ea8f..de8a61d16 100644
--- a/tools/sdk/include/ip_addr.h
+++ b/tools/sdk/include/ip_addr.h
@@ -15,12 +15,6 @@ struct ip_info {
     struct ip_addr gw;
 };
 
-#define IP4_ADDR(ipaddr, a,b,c,d) \
-        (ipaddr)->addr = ((uint32)((d) & 0xff) << 24) | \
-                         ((uint32)((c) & 0xff) << 16) | \
-                         ((uint32)((b) & 0xff) << 8)  | \
-                          (uint32)((a) & 0xff)
-
 /**
  * Determine if two address are on the same network.
  *