From a07916900537f17ce41f593c41165f047f025d1a Mon Sep 17 00:00:00 2001
From: MichaelDvP <github@mdvp.de>
Date: Mon, 20 Apr 2026 13:18:50 +0200
Subject: [PATCH] backup nvs1 if exist

---
 src/core/system.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/system.cpp b/src/core/system.cpp
index 6478465b2..b29e3f4c1 100644
--- a/src/core/system.cpp
+++ b/src/core/system.cpp
@@ -1767,7 +1767,7 @@ void System::exportSystemBackup(JsonObject output) {
     node         = nodes.add<JsonObject>();
     node["type"] = "nvs";
 
-    const char *   nvs_part = "nvs";
+    const char *   nvs_part = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_NVS, "nvs1") ? "nvs1" : "nvs"; // nvs1 is on 16MBs
     nvs_iterator_t it       = nullptr;
 #if ESP_IDF_VERSION_MAJOR < 5
     it = nvs_entry_find(nvs_part, "ems-esp", NVS_TYPE_ANY);