diff --git a/ESP8266/ESP8266.ino b/ESP8266/ESP8266.ino
index 1cda0c8..2d37426 100644
--- a/ESP8266/ESP8266.ino
+++ b/ESP8266/ESP8266.ino
@@ -7,7 +7,7 @@
 // ================================================================
 //  OTA CONFIG
 // ================================================================
-#define FW_VERSION   10
+#define FW_VERSION   11
 #define GITEA_HOST   "https://git.nacho.myds.me"
 #define GITEA_OWNER  "Natxo"
 #define GITEA_REPO   "Arduino-Car"
@@ -99,7 +99,10 @@ static void checkOTA() {
 
     BearSSL::WiFiClientSecure updateClient;
     updateClient.setInsecure();
-    updateClient.setBufferSizes(512, 512);   // reduce heap BearSSL durante descarga
+    // 4096 bytes de entrada: necesario para records TLS de datos grandes.
+    // 512 bytes de salida: suficiente para peticiones HTTP.
+    // El scope block anterior liberó ~10KB del primer cliente — hay heap.
+    updateClient.setBufferSizes(4096, 512);
     ESPhttpUpdate.setFollowRedirects(HTTPC_STRICT_FOLLOW_REDIRECTS);
     ESPhttpUpdate.rebootOnUpdate(true);
     ESPhttpUpdate.update(updateClient, base + "firmware.bin" + token);
diff --git a/Esp32Cam/Esp32Cam.ino b/Esp32Cam/Esp32Cam.ino
index 7f1760b..588e836 100644
--- a/Esp32Cam/Esp32Cam.ino
+++ b/Esp32Cam/Esp32Cam.ino
@@ -10,7 +10,7 @@
 // ================================================================
 //  OTA CONFIG
 // ================================================================
-#define FW_VERSION   10
+#define FW_VERSION   11
 #define GITEA_HOST   "https://git.nacho.myds.me"
 #define GITEA_OWNER  "Natxo"
 #define GITEA_REPO   "Arduino-Car"
diff --git a/firmware/esp32cam/firmware.bin b/firmware/esp32cam/firmware.bin
index 77e9e99..fb07ea0 100644
Binary files a/firmware/esp32cam/firmware.bin and b/firmware/esp32cam/firmware.bin differ
diff --git a/firmware/esp32cam/version.txt b/firmware/esp32cam/version.txt
index 9a03714..9d60796 100644
--- a/firmware/esp32cam/version.txt
+++ b/firmware/esp32cam/version.txt
@@ -1 +1 @@
-10
\ No newline at end of file
+11
\ No newline at end of file
diff --git a/firmware/esp8266/firmware.bin b/firmware/esp8266/firmware.bin
index 8c0b436..7b37df1 100644
Binary files a/firmware/esp8266/firmware.bin and b/firmware/esp8266/firmware.bin differ
diff --git a/firmware/esp8266/version.txt b/firmware/esp8266/version.txt
index 9a03714..9d60796 100644
--- a/firmware/esp8266/version.txt
+++ b/firmware/esp8266/version.txt
@@ -1 +1 @@
-10
\ No newline at end of file
+11
\ No newline at end of file