diff -r c18d2951e8d7 -r 34da2d2b12d5 main/updates.c
--- a/main/updates.c	Tue Sep 26 14:59:06 2023 +0200
+++ b/main/updates.c	Tue Sep 26 15:10:25 2023 +0200
@@ -103,7 +103,7 @@
 	esp_http_client_cleanup(client);
 	goto updateerr;
     }
-    ESP_LOGI(TAG, "Update to partition subtype %d at offset 0x%x", update_partition->subtype, update_partition->address);
+    ESP_LOGI(TAG, "Update to partition subtype %d at offset 0x%lu", update_partition->subtype, update_partition->address);
 
     err = esp_ota_begin(update_partition, OTA_SIZE_UNKNOWN, &update_handle);
     if (err != ESP_OK) {
@@ -126,7 +126,7 @@
 	} else if (data_read > 0) {
 	    if (image_header_was_checked == false) {
 		esp_app_desc_t new_app_info;
-                if (data_read > sizeof(esp_image_header_t) + sizeof(esp_image_segment_header_t) + sizeof(esp_app_desc_t)) {
+                if (data_read > (sizeof(esp_image_header_t) + sizeof(esp_image_segment_header_t) + sizeof(esp_app_desc_t))) {
                     // check current version with downloading
                     memcpy(&new_app_info, &ota_write_data[sizeof(esp_image_header_t) + sizeof(esp_image_segment_header_t)], sizeof(esp_app_desc_t));