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diff --git a/hp.rst b/hp.rst
index a456933..aa5e0ab 100644
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+++ b/hp.rst
@@ -24,3 +24,6 @@ Hewlett Packard HP
 - 2025-02: Telefonsupportwartezeit mindestens 15 Minuten
 
   - https://www.theregister.com/2025/02/20/hp_deliberately_adds_15_minutes/
+- 2025: Firmwareupdate macht Drucker kaputt, wenn dieser einmal Fremdtoner installiert hatte
+
+  - https://arstechnica.com/gadgets/2025/03/firmware-update-bricks-hp-printers-makes-them-unable-to-use-hp-cartridges/
+\ No newline at end of file