From 7caa5a1ba0ffde39cf2a422950e74108b2c1de64 Mon Sep 17 00:00:00 2001
From: MichaelDvP <github@mdvp.de>
Date: Sat, 5 Sep 2026 09:53:51 +0200
Subject: [PATCH] check for nvs1 partition

---
 src/core/emsesp.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/core/emsesp.cpp b/src/core/emsesp.cpp
index 6448c3f66..4c4da8571 100644
--- a/src/core/emsesp.cpp
+++ b/src/core/emsesp.cpp
@@ -1746,9 +1746,15 @@ void EMSESP::start() {
     // #endif
 
     // start NVS storage
-    if (!nvs_.begin("ems-esp", false, "nvs1")) { // try bigger nvs partition on 16M flash first
-        nvs_.begin("ems-esp", false, "nvs");     // fallback to small nvs
+#ifndef EMSESP_STANDALONE
+    if (esp_partition_find(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_NVS, "nvs1")) {
+        nvs_.begin("ems-esp", false, "nvs1");
+    } else {
+        nvs_.begin("ems-esp", false, "nvs"); // fallback to small nvs
     }
+#else
+        nvs_.begin("ems-esp", false, "nvs");
+#endif
 
     // set valid GPIOs list based on ESP32 chip/platform type
     system_.set_valid_system_gpios();