From ea44166814fb7c73d41f532cdcb10b8b81e58b45 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sybren=20A=2E=20St=C3=BCvel?= <sybren@stuvel.eu>
Date: Thu, 22 Feb 2024 02:35:21 +0100
Subject: [PATCH] Improve the error message on OTA version mismatch (#6259)

---
 esphome/espota2.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/esphome/espota2.py b/esphome/espota2.py
index cdf6d7df32..580536153a 100644
--- a/esphome/espota2.py
+++ b/esphome/espota2.py
@@ -206,8 +206,11 @@ def perform_ota(
 
     _, version = receive_exactly(sock, 2, "version", RESPONSE_OK)
     _LOGGER.debug("Device support OTA version: %s", version)
-    if version not in (OTA_VERSION_1_0, OTA_VERSION_2_0):
-        raise OTAError(f"Unsupported OTA version {version}")
+    supported_versions = (OTA_VERSION_1_0, OTA_VERSION_2_0)
+    if version not in supported_versions:
+        raise OTAError(
+            f"Device uses unsupported OTA version {version}, this ESPHome supports {supported_versions}"
+        )
 
     # Features
     send_check(sock, FEATURE_SUPPORTS_COMPRESSION, "features")