diff --git a/src/config.h b/src/config.h
index 82fb7b0..f92ba99 100644
--- a/src/config.h
+++ b/src/config.h
@@ -117,13 +117,6 @@
 // would silently keep displaying the prior owner's photos until the new
 // owner happens to navigate to /setup/{mac}.
 #define NVS_KEY_JUST_PROVISIONED "just_prov"
-// TEMP: power-monitor — stores previous cycle's awake duration and
-// epd_init() duration so the next boot can report them server-side as
-// X-Prev-Awake-Ms / X-Prev-Panel-Init-Ms. Lets us verify PIN_PWR rail
-// cut doesn't slow panel re-init or extend the awake window. Remove
-// these keys + their reads/writes once the change is validated.
-#define NVS_KEY_PREV_AWAKE_MS      "tm_awk"
-#define NVS_KEY_PREV_PANEL_INIT_MS "tm_pin"
 
 // Bump when introducing a schema migration. Each new value can force a one-shot
 // recovery action on first boot of the new firmware.
diff --git a/src/operation.h b/src/operation.h
index ea568c2..e193760 100644
--- a/src/operation.h
+++ b/src/operation.h
@@ -116,12 +116,6 @@ void normal_operation_impl(const String& mac, HTTP& http, const String& url, Pre
     bool errBorder  = prefs.getInt(NVS_KEY_ERR_BORDER, 0) != 0;
     int  schemaV    = prefs.getInt(NVS_KEY_SCHEMA_V, 0);
     bool justProvisioned = prefs.getInt(NVS_KEY_JUST_PROVISIONED, 0) != 0;
-    // TEMP: power-monitor — previous cycle's awake + panel-init durations.
-    // Reported as X-Prev-Awake-Ms / X-Prev-Panel-Init-Ms below. Remove
-    // along with the corresponding writes near deep_sleep_start + the
-    // epd_init() timing block once the PIN_PWR cut is validated.
-    uint32_t prevAwakeMs     = prefs.getUInt(NVS_KEY_PREV_AWAKE_MS, 0);
-    uint32_t prevPanelInitMs = prefs.getUInt(NVS_KEY_PREV_PANEL_INIT_MS, 0);
     prefs.end();
 
     // Schema migration: on first boot under err-border-aware firmware, the
@@ -168,17 +162,6 @@ void normal_operation_impl(const String& mac, HTTP& http, const String& url, Pre
         http.addHeader("X-Just-Provisioned", "1");
     }
 
-    // TEMP: power-monitor — last cycle's awake + panel-init times.
-    // Lets us see, server-side, whether the PIN_PWR rail cut affects
-    // either. Send only if non-zero (skips the first boot after a
-    // firmware that didn't store them).
-    if (prevAwakeMs > 0) {
-        http.addHeader("X-Prev-Awake-Ms", String((unsigned long)prevAwakeMs));
-    }
-    if (prevPanelInitMs > 0) {
-        http.addHeader("X-Prev-Panel-Init-Ms", String((unsigned long)prevPanelInitMs));
-    }
-
     const char* collectHeaders[] = { "X-Interval-Ms", "X-Image-Id", "X-Image-Sha256", "X-Claimed" };
     http.collectHeaders(collectHeaders, 4);
     int code = http.GET();
@@ -261,12 +244,7 @@ void normal_operation_impl(const String& mac, HTTP& http, const String& url, Pre
             }
 
             displayInitialized = true;
-            // TEMP: power-monitor — time the panel init, stored in NVS at
-            // end of cycle for next boot to report. Remove the timing
-            // wrapper when the PIN_PWR cut is validated.
-            uint32_t panelInitStart = millis();
             epd_init();
-            uint32_t panelInitMs = millis() - panelInitStart;
             File r = LittleFS.open(IMAGE_PATH, "r");
             if (r) { epd_draw_image_from_file(r); r.close(); }
 
@@ -275,7 +253,6 @@ void normal_operation_impl(const String& mac, HTTP& http, const String& url, Pre
             prefs.begin(NVS_NAMESPACE, false);
             prefs.putInt(NVS_KEY_DRAW_NEEDED, 0);
             prefs.putInt(NVS_KEY_ERR_BORDER, 0);
-            prefs.putUInt(NVS_KEY_PREV_PANEL_INIT_MS, panelInitMs);  // TEMP
             prefs.end();
         }
 
@@ -385,14 +362,6 @@ void normal_operation_impl(const String& mac, HTTP& http, const String& url, Pre
     // up, losing the saving. Released per-pin in epd_setup_pins() on
     // wake via gpio_hold_dis().
     gpio_deep_sleep_hold_en();
-
-    // TEMP: power-monitor — millis() at this point is the total awake
-    // duration since boot. Next boot reads it back and reports as
-    // X-Prev-Awake-Ms. Remove when PIN_PWR cut is validated.
-    prefs.begin(NVS_NAMESPACE, false);
-    prefs.putUInt(NVS_KEY_PREV_AWAKE_MS, millis());
-    prefs.end();
-
     esp_deep_sleep_start();
 }
 
diff --git a/test/mocks/Preferences.h b/test/mocks/Preferences.h
index ee9976d..65c1694 100644
--- a/test/mocks/Preferences.h
+++ b/test/mocks/Preferences.h
@@ -8,7 +8,6 @@ extern int g_prefs_putint_seq;  // sequence position of last putInt call
 
 struct Preferences {
     std::map<std::string, int32_t>  ints;
-    std::map<std::string, uint32_t> uints;
     std::map<std::string, std::string> strings;
     bool _open = false;
 
@@ -27,16 +26,10 @@ struct Preferences {
         g_call_seq++;
     }
 
-    uint32_t getUInt(const char* key, uint32_t def = 0) {
-        auto it = uints.find(key);
-        return it != uints.end() ? it->second : def;
-    }
-    void putUInt(const char* key, uint32_t val) { uints[key] = val; }
-
     String getString(const char* key, const char* def = "") {
         auto it = strings.find(key);
         return it != strings.end() ? String(it->second) : String(def);
     }
     void putString(const char* key, const String& val) { strings[key] = val._s; }
-    void clear() { ints.clear(); uints.clear(); strings.clear(); }
+    void clear() { ints.clear(); strings.clear(); }
 };