From 476b42542fff07d300f5ae34770bf66a1a88cadb Mon Sep 17 00:00:00 2001
From: proddy <paul@derbyshire.nl>
Date: Mon, 14 Sep 2020 00:06:57 +0200
Subject: [PATCH] format LittleFS on erased ESP8266 - #492

---
 src/system.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/system.cpp b/src/system.cpp
index ba5709e33..3400df0d9 100644
--- a/src/system.cpp
+++ b/src/system.cpp
@@ -633,7 +633,6 @@ bool System::check_upgrade() {
 #if defined(EMSESP_DEBUG)
         Serial.begin(115200);
         Serial.println(F("FS is Littlefs"));
-        Serial.flush();
         Serial.end();
 #endif
         return false;
@@ -649,9 +648,11 @@ bool System::check_upgrade() {
 #if defined(EMSESP_DEBUG)
         Serial.begin(115200);
         Serial.println(F("No old SPIFFS found!"));
-        Serial.flush();
         Serial.end();
 #endif
+        // if there is neither SPIFFS or LittleFS we can assume the ESP8266 has been erased
+        l_cfg.setAutoFormat(true); // reset to normal behaviour
+        LittleFS.setConfig(l_cfg);
         return false;
     }