diff --git a/main/display_manager.c b/main/display_manager.c
index b21216e..2825b75 100644
--- a/main/display_manager.c
+++ b/main/display_manager.c
@@ -72,10 +72,10 @@ esp_err_t display_manager_init(void)
     ESP_ERROR_CHECK(esp_lcd_panel_reset(s_panel));
     ESP_ERROR_CHECK(esp_lcd_panel_init(s_panel));
     ESP_ERROR_CHECK(esp_lcd_panel_invert_color(s_panel, true));
-    /* This panel variant scans mirrored on X; flip so text reads correctly.
-     * If text appears upside-down instead, use mirror(false,true); if still
-     * mirrored both ways, use mirror(true,true). */
-    ESP_ERROR_CHECK(esp_lcd_panel_mirror(s_panel, true, false));
+    /* No panel mirror: the font bit-order fix in display_put_text already
+     * yields correct (non-mirrored) glyphs. Mirroring here would flip the
+     * whole frame and re-break the text. */
+    ESP_ERROR_CHECK(esp_lcd_panel_mirror(s_panel, false, false));
     ESP_ERROR_CHECK(esp_lcd_panel_disp_on_off(s_panel, true));
 
     s_staging = malloc(DISP_W * sizeof(uint16_t));
@@ -132,13 +132,13 @@ int display_put_text(int x, int y, const char *str, uint16_t fg, uint16_t bg)
         char c = *str++;
         if (c >= FONT5X7_FIRST_CHAR && c <= FONT5X7_LAST_CHAR) {
             const uint8_t *glyph = font5x7[c - FONT5X7_FIRST_CHAR];
-            /* Row-major [row][col] so the linear buffer matches what
-             * esp_lcd_panel_draw_bitmap expects. */
+            /* Row-major [row][col]. The font table stores each row with the
+             * MSB as the LEFT column, so read bit (W-1-gx) for column gx. */
             uint16_t cell[FONT5X7_H][FONT5X7_W];
 
             for (int gy = 0; gy < FONT5X7_H; gy++) {
                 for (int gx = 0; gx < FONT5X7_W; gx++) {
-                    cell[gy][gx] = (glyph[gy] >> gx) & 1 ? fg : bg;
+                    cell[gy][gx] = (glyph[gy] >> (FONT5X7_W - 1 - gx)) & 1 ? fg : bg;
                 }
             }
             if (x + FONT5X7_W <= DISP_W && y + FONT5X7_H <= DISP_H) {
diff --git a/main/rfid_manager.c b/main/rfid_manager.c
index 2a35f4d..5a8d035 100644
--- a/main/rfid_manager.c
+++ b/main/rfid_manager.c
@@ -87,6 +87,7 @@ static void rfid_probe_version(void)
         .command_bits = 1,   /* read/write select bit */
         .address_bits = 6,   /* register address */
         .dummy_bits = 1,
+        .flags = SPI_DEVICE_HALFDUPLEX, /* RX-only reads like the rc522 driver */
     };
     if (spi_bus_add_device(HW_RFID_SPI_HOST, &devcfg, &probe) != ESP_OK || probe == NULL) {
         ESP_LOGW(TAG, "probe: could not add temp SPI device on SPI3");