diff --git a/doc/content/devices/models/heltec-ab01/_index.md b/doc/content/devices/models/heltec-ab01/_index.md
index 3b7026b995..b278840438 100644
--- a/doc/content/devices/models/heltec-ab01/_index.md
+++ b/doc/content/devices/models/heltec-ab01/_index.md
@@ -95,7 +95,7 @@ After configuring your device, select the **Register end device** button.
 Our device is registered with {{% tts %}}, but it still needs the correct info in order to connect.
 
 Go back to your code, and at the top you should see these lines:
-```
+```cpp
 /* OTAA para*/
 uint8_t devEui[] = { 0x22, 0x32, 0x33, 0x00, 0x00, 0x88, 0x88, 0x02 };
 uint8_t appEui[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
diff --git a/doc/content/devices/models/heltec-ab01/board-url.png b/doc/content/devices/models/heltec-ab01/board-url.png
old mode 100644
new mode 100755
index 46af7d91b0..14fd2b8ab7
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diff --git a/doc/content/devices/models/heltec-ab01/boards-manager.png b/doc/content/devices/models/heltec-ab01/boards-manager.png
old mode 100644
new mode 100755
index 338b2e5973..7cd99d60ae
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