{"id":2932,"date":"2019-05-01T19:26:39","date_gmt":"2019-05-01T19:26:39","guid":{"rendered":"https:\/\/pageloot.com\/?p=2932"},"modified":"2026-10-23T06:00:57","modified_gmt":"2026-10-23T06:00:57","slug":"why-qr-code-not-working","status":"publish","type":"post","link":"https:\/\/pageloot.com\/es\/qr-code-marketing\/why-qr-code-not-working\/","title":{"rendered":"\u00bfPor qu\u00e9 no funciona mi c\u00f3digo QR? Soluciones a los fallos de escaneo"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Un c\u00f3digo QR que no escanea casi siempre se debe a una de seis cosas: el c\u00f3digo es demasiado peque\u00f1o, el contraste es demasiado bajo, el margen a su alrededor es demasiado estrecho, el enlace dentro de \u00e9l est\u00e1 roto o es demasiado largo, la impresi\u00f3n es borrosa o brillante, o el tel\u00e9fono no puede enfocar. Esta gu\u00eda presenta primero las comprobaciones r\u00e1pidas y luego los detalles y las cifras para solucionar cada causa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Lista de Verificaci\u00f3n R\u00e1pida: Solucionar un C\u00f3digo QR que No Escanea<\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>Abre el enlace t\u00fa mismo. Si la p\u00e1gina no carga, el c\u00f3digo est\u00e1 bien y el destino est\u00e1 roto. Corrige la URL o c\u00e1mbiala si el c\u00f3digo es din\u00e1mico.<\/li><li>Verifica el tama\u00f1o. Usa al menos 2 cm (0.8 pulgadas) de ancho para un c\u00f3digo sostenido en la mano, y 1 pie de ancho por cada 10 pies de distancia de escaneo.<\/li><li>Verifica el contraste. Usa m\u00f3dulos oscuros sobre un fondo claro, idealmente 4.5:1 o superior. No inviertas los colores.<\/li><li>Verifica el margen. Deja un borde en blanco de al menos 4 m\u00f3dulos en los cuatro lados.<\/li><li>Verifica la impresi\u00f3n. Usa SVG o PDF, una superficie mate y una colocaci\u00f3n plana.<\/li><li>Escanea con dos tel\u00e9fonos diferentes en la iluminaci\u00f3n donde el c\u00f3digo ser\u00e1 realmente utilizado.<\/li><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Por qu\u00e9 el tama\u00f1o y la distancia dictan la escaneabilidad<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El tama\u00f1o f\u00edsico de un c\u00f3digo QR es la causa m\u00e1s frecuente de problemas de escaneo. Si un c\u00f3digo es demasiado peque\u00f1o, la c\u00e1mara del tel\u00e9fono no puede distinguir los m\u00f3dulos individuales. Utiliza un m\u00ednimo de 0.8 x 0.8 pulgadas (2 x 2 cm) para elementos de corto alcance como tarjetas de presentaci\u00f3n y empaques de productos. Para c\u00f3digos escaneados a distancia, utiliza la regla 10:1: un c\u00f3digo visto desde 10 pies de distancia debe tener al menos 1 pie de ancho. Un cartel le\u00eddo desde 3 metros necesita un c\u00f3digo de unos 30 cm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Datos m\u00e1s densos necesitan m\u00e1s m\u00f3dulos, y m\u00e1s m\u00f3dulos necesitan un tama\u00f1o de impresi\u00f3n mayor. Seguir <a href=\"https:\/\/pageloot.com\/es\/blog\/best-practices-for-qr-code-readability\/\">las mejores pr\u00e1cticas para la legibilidad de los c\u00f3digos QR<\/a> te ayuda a establecer las proporciones antes de una gran tirada de impresi\u00f3n. Si no est\u00e1s seguro de la ubicaci\u00f3n final, elige el tama\u00f1o m\u00e1s grande. Los tel\u00e9fonos m\u00e1s antiguos con c\u00e1maras de baja resoluci\u00f3n lo necesitan m\u00e1s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Por qu\u00e9 el contraste de color es la base de la legibilidad<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los esc\u00e1neres decodifican la diferencia entre m\u00f3dulos oscuros y claros. Si el contraste es demasiado bajo, el software no puede encontrar el patr\u00f3n contra el fondo. Mant\u00e9n una relaci\u00f3n de contraste de 4.5:1 o superior, como se describe en <a href=\"https:\/\/pageloot.com\/es\/blog\/qr-code-color-contrast-best-practices\/\">las mejores pr\u00e1cticas de contraste de color<\/a>. El negro sobre blanco es el m\u00e1s fiable. El azul marino oscuro, el morado intenso o el verde bosque sobre gris claro o crema tambi\u00e9n funcionan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Evite los c\u00f3digos invertidos (m\u00f3dulos claros sobre fondo oscuro), porque muchas aplicaciones de c\u00e1mara no pueden leerlos. Evite los degradados y los fondos transl\u00facidos, porque crean tonos medios que el esc\u00e1ner no interpreta como tinta ni como papel. El rojo sobre blanco es un problema com\u00fan, ya que algunos esc\u00e1neres leen el rojo como un color claro.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">La importancia de la zona tranquila y el relleno<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La zona silenciosa es el margen en blanco alrededor de los cuatro lados de un c\u00f3digo QR. Le indica al esc\u00e1ner d\u00f3nde comienza el c\u00f3digo y d\u00f3nde termina el dise\u00f1o circundante. El est\u00e1ndar exige al menos 4 m\u00f3dulos de margen. Si el texto, un logotipo o un patr\u00f3n de fondo tocan este espacio, el esc\u00e1ner puede interpretar esos elementos como parte del c\u00f3digo, y el escaneo fallar\u00e1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mantener este borde libre es una de las formas m\u00e1s efectivas <a href=\"https:\/\/pageloot.com\/es\/blog\/5-tips-for-faster-qr-code-scanning\/\">consejos para un escaneo m\u00e1s r\u00e1pido<\/a>. Colocar el c\u00f3digo en un cuadro blanco o una etiqueta blanca es la forma m\u00e1s sencilla de mantener el margen cuando el fondo es una foto o un patr\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Gesti\u00f3n de la complejidad de los datos con c\u00f3digos QR din\u00e1micos<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un c\u00f3digo que contiene una URL larga con muchos par\u00e1metros de seguimiento se ve denso y pixelado. Los bloques peque\u00f1os son dif\u00edciles de enfocar para una c\u00e1mara. Un <a href=\"https:\/\/pageloot.com\/es\/qr-code-generator\/\">generador de c\u00f3digos QR<\/a> que crea c\u00f3digos din\u00e1micos resuelve esto, porque el c\u00f3digo almacena un enlace de redirecci\u00f3n corto en lugar de la direcci\u00f3n completa. El patr\u00f3n es m\u00e1s simple y se escanea m\u00e1s r\u00e1pido.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Los c\u00f3digos est\u00e1ticos almacenan el destino directamente en el patr\u00f3n. Nunca caducan y son la elecci\u00f3n correcta cuando el enlace no cambiar\u00e1, como una p\u00e1gina web fija o un inicio de sesi\u00f3n de Wi-Fi. La debilidad es que el c\u00f3digo impreso no se puede editar. Si la p\u00e1gina se elimina o se mueve, cada copia impresa apunta a un enlace roto.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Los c\u00f3digos din\u00e1micos le permiten cambiar el destino despu\u00e9s de la impresi\u00f3n, por lo que un enlace roto se arregla en minutos sin reimprimir. Tambi\u00e9n muestran estad\u00edsticas de escaneo. Los c\u00f3digos din\u00e1micos funcionan mientras su plan est\u00e1 activo y se vuelven inactivos despu\u00e9s de que finaliza un plan de pago. Puede probarlos con una prueba gratuita de 14 d\u00edas, y los planes se enumeran en <a href=\"https:\/\/pageloot.com\/es\/pricing\/\">pageloot.com\/pricing<\/a>. Se incluyen escaneos ilimitados, y los planes vienen con una garant\u00eda de devoluci\u00f3n de dinero de 30 d\u00edas.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Monitorea Tu Campa\u00f1a en Tiempo Real<\/strong> \u00bfQuiere ver d\u00f3nde y cu\u00e1ndo sus clientes escanean sus materiales? Use el <a href=\"https:\/\/pageloot.com\/es\/qr-code-generator\/\">generador de c\u00f3digos QR<\/a> para crear c\u00f3digos rastreables y ver los escaneos por hora, lugar y dispositivo en su panel de control.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f3mo la calidad de impresi\u00f3n y los sustratos impactan el rendimiento<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Siempre imprima desde un archivo vectorial como SVG, PDF o EPS. Un PNG o JPG peque\u00f1o presenta bordes suaves al ampliarse, y los bordes borrosos hacen que los m\u00f3dulos vecinos se mezclen. El <a href=\"https:\/\/pageloot.com\/es\/blog\/how-printing-techniques-impact-qr-code-scannability\/\">impacto de las t\u00e9cnicas de impresi\u00f3n<\/a> explica c\u00f3mo se comparan la impresi\u00f3n offset y la digital. Si debe usar PNG, exp\u00f3rtelo a un tama\u00f1o grande, por ejemplo, 1000 p\u00edxeles o m\u00e1s para un c\u00f3digo impreso a 5 cm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/04\/square-illustration-0c1c16-6468eb41e670.webp\" alt=\"Comparaci\u00f3n de calidad de impresi\u00f3n\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">El deslumbramiento es el segundo problema de impresi\u00f3n. El papel brillante, el vidrio y los envases de pl\u00e1stico reflejan la luz en la lente y desvanecen los m\u00f3dulos. Use un acabado mate y coloque el c\u00f3digo en un \u00e1rea plana, no en una botella curva o un borde doblado. Si el c\u00f3digo debe ir en una superficie curva, h\u00e1galo m\u00e1s grande para compensar la distorsi\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Etiquetas de c\u00f3digos QR y superficies met\u00e1licas que no escanean<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Las etiquetas met\u00e1licas, las placas grabadas y los adhesivos en los equipos fallan con m\u00e1s frecuencia que el papel, por tres razones. El metal brillante refleja la luz y oculta los m\u00f3dulos. Los c\u00f3digos grabados con l\u00e1ser o grabados a menudo tienen un bajo contraste entre las \u00e1reas marcadas y no marcadas. Las etiquetas peque\u00f1as obligan a m\u00f3dulos muy peque\u00f1os.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Use un acabado mate o cepillado, o una superficie anodizada o pintada, en lugar de metal pulido.<\/li><li>Asegure un contraste claro. La pintura negra o la tinta negra sobre un metal p\u00e1lido o una etiqueta blanca es m\u00e1s fiable que una marca grabada tenue.<\/li><li>Mantenga la zona tranquila libre de tornillos, bordes y texto grabado.<\/li><li>Use un enlace corto, para que el c\u00f3digo tenga menos y m\u00e1s m\u00f3dulos grandes. Un c\u00f3digo din\u00e1mico es \u00fatil aqu\u00ed, porque una etiqueta met\u00e1lica no se puede reimprimir de forma econ\u00f3mica.<\/li><li>Pruebe la etiqueta terminada con dos tel\u00e9fonos, a la luz del d\u00eda y con luz interior, antes de pedir un lote.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Soluci\u00f3n de problemas de dispositivos y entorno<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A veces el c\u00f3digo est\u00e1 bien y el problema es el dispositivo o el lugar. La poca luz reduce el contraste y una lente de c\u00e1mara sucia hace que las im\u00e1genes sean borrosas. Diga a los usuarios que limpien la lente y mantengan el tel\u00e9fono a entre 4 y 12 pulgadas (10 y 30 cm) de un c\u00f3digo peque\u00f1o. Es importante <a href=\"https:\/\/pageloot.com\/es\/blog\/how-to-test-qr-codes-for-mobile-usability\/\">probar c\u00f3digos QR para la usabilidad m\u00f3vil<\/a> en tel\u00e9fonos Android e iOS antiguos, as\u00ed como en los nuevos.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>iPhone: abre la aplicaci\u00f3n C\u00e1mara y ap\u00fantala al c\u00f3digo. Comprueba que en Ajustes, C\u00e1mara, Escanear c\u00f3digos QR est\u00e9 activado.<\/li><li>Android: usa la aplicaci\u00f3n C\u00e1mara o Google Lens. Si no ocurre nada, abre Google Lens directamente.<\/li><li>Sin internet: el escaneo funciona, pero la p\u00e1gina no cargar\u00e1. Esto parece un c\u00f3digo roto, pero no lo es.<\/li><li>El enlace abre la p\u00e1gina equivocada o un error: el destino cambi\u00f3. Comprueba la URL y usa un c\u00f3digo din\u00e1mico si necesitas cambiarlo m\u00e1s tarde.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Si colocas un logotipo en el centro del c\u00f3digo, establece la correcci\u00f3n de errores en Q (25%) o H (30%). Los niveles son L 7%, M 15%, Q 25% y H 30% del patr\u00f3n que puede da\u00f1arse y aun as\u00ed ser le\u00eddo. Un nivel m\u00e1s alto a\u00f1ade m\u00f3dulos, as\u00ed que mant\u00e9n el logotipo peque\u00f1o y pru\u00e9balo. Consulta <a href=\"https:\/\/pageloot.com\/es\/blog\/qr-code-usability-best-practices\/\">las mejores pr\u00e1cticas de usabilidad de c\u00f3digos QR<\/a> para probar dise\u00f1os de marca con iluminaci\u00f3n real.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un c\u00f3digo fiable necesita el tama\u00f1o adecuado, alto contraste, un margen claro, una impresi\u00f3n vectorial limpia y un enlace corto. Pru\u00e9balo en m\u00e1s de un tel\u00e9fono antes de imprimir la tirada completa.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/04\/fix-qr-scan-a3de25-1d7758609eb0.webp\" alt=\"Infograf\u00eda de soluci\u00f3n de escaneo QR\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Preguntas frecuentes<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-000000000000\"><strong class=\"schema-faq-question\">\u00bfPor qu\u00e9 mi c\u00f3digo QR se ve borroso cuando lo imprimo?<\/strong> <p class=\"schema-faq-answer\">La borrosidad generalmente se debe a un archivo de baja resoluci\u00f3n, como un JPG o PNG peque\u00f1o. Descargue el c\u00f3digo como SVG o PDF, que se puede ampliar sin perder calidad, e imprima en una superficie mate.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000001\"><strong class=\"schema-faq-question\">\u00bfPuedo cambiar el enlace de mi c\u00f3digo QR despu\u00e9s de imprimirlo?<\/strong> <p class=\"schema-faq-answer\">Solo si es un c\u00f3digo QR din\u00e1mico. Un c\u00f3digo est\u00e1tico almacena el destino en el patr\u00f3n, por lo que no puede ser editado. Un c\u00f3digo din\u00e1mico utiliza un enlace de redirecci\u00f3n, por lo que puedes cambiar el destino en tu panel de control en cualquier momento.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000002\"><strong class=\"schema-faq-question\">\u00bfPor qu\u00e9 la c\u00e1mara de mi iPhone o Android no reconoce el c\u00f3digo?<\/strong> <p class=\"schema-faq-answer\">Las causas habituales son el bajo contraste, una zona silenciosa faltante, un c\u00f3digo demasiado peque\u00f1o o el deslumbramiento. Compruebe que el margen sea de al menos 4 m\u00f3dulos, que los m\u00f3dulos sean mucho m\u00e1s oscuros que el fondo y que el c\u00f3digo tenga al menos 2 cm de ancho.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000003\"><strong class=\"schema-faq-question\">\u00bfPor qu\u00e9 no escanea mi c\u00f3digo QR en una etiqueta de metal?<\/strong> <p class=\"schema-faq-answer\">El metal brillante refleja la luz y las marcas grabadas a menudo tienen bajo contraste. Utilice una superficie mate o pintada, negro de alto contraste sobre un \u00e1rea clara, un margen claro y un enlace corto, luego pruebe la etiqueta en dos tel\u00e9fonos.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000004\"><strong class=\"schema-faq-question\">\u00bfCaducan los c\u00f3digos QR?<\/strong> <p class=\"schema-faq-answer\">Los c\u00f3digos QR est\u00e1ticos nunca caducan. Los c\u00f3digos din\u00e1micos funcionan mientras su plan est\u00e9 activo y se vuelven inactivos despu\u00e9s de que finaliza un plan de pago.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000005\"><strong class=\"schema-faq-question\">\u201c\u00bfQu\u00e9 tama\u00f1o debe tener un c\u00f3digo QR?<\/strong> <p class=\"schema-faq-answer\">Al menos 2 x 2 cm (0.8 x 0.8 pulgadas) para objetos cercanos. Para escaneo a distancia, utilice 1 pie de ancho por cada 10 pies de distancia.<\/p> <\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Descubre por qu\u00e9 falla tu c\u00f3digo QR y c\u00f3mo arreglarlo. Ajusta tama\u00f1o, contraste y zonas de silencio, o usa c\u00f3digos din\u00e1micos para escanear siempre bien.<\/p>","protected":false},"author":17,"featured_media":53174,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-2932","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-qr-code-marketing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>QR Code Not Scanning? 6 Fixes That Work<\/title>\n<meta name=\"description\" content=\"QR code not scanning? Check size, contrast, margin, link and print quality with this quick checklist, then fix each cause with exact numbers.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pageloot.com\/es\/qr-code-marketing\/why-qr-code-not-working\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"QR Code Not Scanning? 6 Fixes That Work\" \/>\n<meta property=\"og:description\" content=\"QR code not scanning? 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Use a matte or painted surface, high-contrast black on a light area, a clear margin and a short link, then test the tag on two phones.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000004","position":5,"url":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000004","name":"\u00bfCaducan los c\u00f3digos QR?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Static QR codes never expire. Dynamic codes work while your plan is active and become inactive after a paid plan ends.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000005","position":6,"url":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000005","name":"\u201c\u00bfQu\u00e9 tama\u00f1o debe tener un c\u00f3digo QR?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"At least 2 x 2 cm (0.8 x 0.8 inches) for close-range items. For distance scanning, use 1 foot of width for every 10 feet of distance.","inLanguage":"es"},"inLanguage":"es"}]}},"_links":{"self":[{"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/posts\/2932","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/comments?post=2932"}],"version-history":[{"count":4,"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/posts\/2932\/revisions"}],"predecessor-version":[{"id":56952,"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/posts\/2932\/revisions\/56952"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/media\/53174"}],"wp:attachment":[{"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/media?parent=2932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/categories?post=2932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pageloot.com\/es\/wp-json\/wp\/v2\/tags?post=2932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}