{"id":26572,"date":"2025-06-22T10:00:00","date_gmt":"2025-06-22T08:00:00","guid":{"rendered":"https:\/\/monraspberry.com\/?p=26572"},"modified":"2025-05-28T11:43:15","modified_gmt":"2025-05-28T09:43:15","slug":"led-raspberry-pi-codes-erreurs-depannage","status":"publish","type":"post","link":"https:\/\/monraspberry.com\/es\/led-raspberry-pi-codes-erreurs-depannage\/","title":{"rendered":"LED Raspberry Pi: c\u00f3digos, errores y soluci\u00f3n de problemas"},"content":{"rendered":"

1. Pourquoi observer les LED ?<\/h2>\n\n\n\n

Les diodes \u00ab PWR \/ ACT \u00bb (et le t\u00e9moin bi-couleur du Pi 5) sont le premier outil de diagnostic sans \u00e9cran<\/strong> : elles r\u00e9v\u00e8lent sous-tension, acc\u00e8s micro-SD, erreurs de boot et \u00e9tat d\u2019arr\u00eat s\u00e9curis\u00e9.<\/p>\n\n\n\n

2. O\u00f9 se trouvent-elles ? (r\u00e9sum\u00e9 2025)<\/h2>\n\n\n\n
Modelo<\/th>LED physiques<\/th>Couleurs<\/th>R\u00f4le par d\u00e9faut<\/th><\/tr><\/thead>
Zero \/ Zero 2 W<\/strong><\/td>1 \u00d7 ACT<\/td>Vert<\/td>Activit\u00e9 \u00b5SD \/ flash-codes<\/td><\/tr>
Pi 1\u20133<\/strong><\/td>1 \u00d7 PWR + 1 \u00d7 ACT<\/td>Rouge + Vert<\/td>Alim 5 V \/ Activit\u00e9 \u00b5SD<\/td><\/tr>
Pi 4 B \/ 400<\/strong><\/td>1 \u00d7 PWR + 1 \u00d7 ACT<\/td>Rouge + Vert<\/td>Idem + flash-codes Pi 4<\/td><\/tr>
Pi 5<\/strong><\/td>1 \u00d7 bi-couleur (RGB LED, vert + rouge)<\/td>Vert\/rouge<\/td>Vert = actif, rouge = veille, vert + flash = codes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Astuce :<\/em> sur les mod\u00e8les munis d\u2019Ethernet, deux LED jaunes\/vertes suppl\u00e9mentaires indiquent lien<\/strong> y trafic<\/strong> r\u00e9seau.<\/p>\n\n\n\n

3. \u00c9tats simples \u00e0 conna\u00eetre<\/h2>\n\n\n\n
\u00c9tat<\/th>Signification (Pi 1-4)<\/th>Signification (Pi 5)<\/th><\/tr><\/thead>
Rouge fixe<\/td>Alimentation OK \u2265 4 .65 V<\/td>N\/A (vert fixe)<\/td><\/tr>
Rouge clignotant<\/td>Sous-tension < 4 .63 V<\/td>Rouge constant = arr\u00eat propre, sous-tension signal\u00e9e par log<\/td><\/tr>
Vert clignotement irr\u00e9gulier<\/td>Acc\u00e8s \u00b5SD ou SSD<\/td>Idem<\/td><\/tr>
Aucune LED<\/td>Pas de 5 V \u2192 v\u00e9rifier PSU \/ fusible<\/td>Pas d\u2019alim ou bouton Power OFF<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4. Flash-codes de diagnostic (ACT ou LED bi-couleur)<\/h2>\n\n\n\n
Long<\/th>Court<\/th>Erreur d\u00e9tect\u00e9e<\/th><\/tr><\/thead>
0<\/td>3<\/td>\u00c9chec g\u00e9n\u00e9rique de boot<\/td><\/tr>
0<\/td>4<\/td>start*.elf<\/code> introuvable<\/td><\/tr>
0<\/td>7<\/td>kernel.img<\/code> manquant<\/td><\/tr>
0<\/td>8<\/td>D\u00e9faut SDRAM<\/td><\/tr>
2<\/td>1<\/td>Partition non-FAT<\/td><\/tr>
2<\/td>4<\/td>Signature\/hachage invalide (Pi 4\/5)<\/td><\/tr>
3<\/td>1<\/td>EEPROM SPI corrompue (Pi 4\/5)<\/td><\/tr>
4<\/td>4<\/td>Carte non reconnue<\/td><\/tr>
4<\/td>5<\/td>Fatal firmware error<\/strong><\/td><\/tr>
4<\/td>6<\/td>Power failure type A<\/strong><\/td><\/tr>
4<\/td>7<\/td>Power failure type B<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Lecture :<\/strong> la LED effectue x<\/em> longs flashs (1 s), suivis de y<\/em> courts (0,25 s), puis une pause ; le motif se r\u00e9p\u00e8te. Comptez-les pour identifier le probl\u00e8me.<\/p>\n\n\n\n

5. D\u00e9panner gr\u00e2ce aux LED<\/h2>\n\n\n\n
Sympt\u00f4me<\/th>Probable cause<\/th>Correctifs rapides<\/th><\/tr><\/thead>
Rouge clignote, vert \u00e9teint<\/td>Alim ou c\u00e2ble USB-C faible<\/td>Bloc 5 V \u2265 3 A, c\u00e2ble 18 AWG<\/td><\/tr>
Vert clignote en boucle 0-4<\/td>Carte \u00b5SD absente ou corrompue<\/td>Reflasher Raspberry Pi OS, tester autre \u00b5SD<\/td><\/tr>
3-1 (Pi 4\/5)<\/td>EEPROM SPI<\/td>D\u00e9marrer en recovery bootloader<\/strong> avec Pi Imager<\/td><\/tr>
4-6<\/td>Power failure (USB-C n\u00e9gociation)<\/td>Essayer autre PSU PD \/ QC, pas de hub aval actif<\/td><\/tr>
Rouge fixe, vert fixe (Pi 4)<\/td>Freeze GPU<\/td>V\u00e9rifier overclock, temp\u00e9rature > 85 \u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

6. Personnaliser ou \u00e9teindre les LED<\/h2>\n\n\n\n

Ajoutez dans \/boot\/config.txt<\/code> :<\/p>\n\n\n

\n# Couper totalement la LED ACT (tous mod\u00e8les)\ndtparam=act_led_trigger=none\ndtparam=act_led_activelow=off\n\n# Pi 4 \/ Pi 5 : forcer PWR LED toujours \u00e9teinte\ndtparam=pwr_led_trigger=default-on\ndtparam=pwr_led_activelow=on    # inverse la logique\n\n# Transformer ACT en t\u00e9moin de c\u0153ur (charge CPU)\ndtparam=act_led_trigger=cpu\n<\/pre><\/div>\n\n\n
Ces dtparam<\/code> sont appliqu\u00e9s au boot par le firmware.<\/p>\n\n\n\n
7. Bonnes pratiques<\/h2>\n\n\n\n
    \n
  1. Toujours v\u00e9rifier l\u2019alimentation<\/strong> avant de conclure \u00e0 un d\u00e9faut mat\u00e9riel ; 80 % des clignotements rouges proviennent d\u2019un PSU sous-dimensionn\u00e9.<\/li>\n\n\n\n
  2. Ne retirez pas la micro-SD<\/strong> quand la LED verte clignote pour \u00e9viter la corruption FS.<\/li>\n\n\n\n
  3. Sur Pi 5, le rouge permanent signifie \u00ab halt<\/em> propre \u00bb : pressez le bouton Power ou envoyez sudo poweroff<\/code> plut\u00f4t que de d\u00e9brancher.<\/li>\n\n\n\n
  4. Pour les projets sensibles (astrophoto, time-lapse), d\u00e9sactivez les LED<\/strong> afin de ne pas polluer la sc\u00e8ne ou \u00e9conomiser 2-5 mA.<\/li>\n<\/ol>\n\n\n\n
    Conclusi\u00f3n<\/h2>\n\n\n\n
    Comprendre le langage des LED de votre Raspberry Pi transforme un clignotement \u00e9nigmatique en diagnostic pr\u00e9cis<\/strong> : alimentation, support de d\u00e9marrage, firmware ou EEPROM. En 2025, les flash-codes restent uniformes du Pi Zero 2 W au Pi 5 ; il suffit de les compter. Et si la lumi\u00e8re vous d\u00e9range, un simple dtparam<\/code> la fera taire !<\/p>","protected":false},"excerpt":{"rendered":"
    Decodificar los LEDs rojo\/verde de la Raspberry Pi 0 \u2192 5: significado, errores (flash-codes) y dtparam para apagarlos o cambiar su funci\u00f3n.<\/p>","protected":false},"author":1,"featured_media":26573,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-26572","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"featured_image_src":{"landsacpe":["https:\/\/monraspberry.com\/wp-content\/uploads\/2025\/05\/LED-Raspberry-Pi.png",791,445,false],"list":["https:\/\/monraspberry.com\/wp-content\/uploads\/2025\/05\/LED-Raspberry-Pi.png",463,260,false],"medium":["https:\/\/monraspberry.com\/wp-content\/uploads\/2025\/05\/LED-Raspberry-Pi-300x169.png",300,169,true],"full":["https:\/\/monraspberry.com\/wp-content\/uploads\/2025\/05\/LED-Raspberry-Pi.png",1280,720,false]},"jetpack_featured_media_url":"https:\/\/monraspberry.com\/wp-content\/uploads\/2025\/05\/LED-Raspberry-Pi.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/posts\/26572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/comments?post=26572"}],"version-history":[{"count":0,"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/posts\/26572\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/media\/26573"}],"wp:attachment":[{"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/media?parent=26572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/categories?post=26572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/monraspberry.com\/es\/wp-json\/wp\/v2\/tags?post=26572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}