{"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\/cs\/qr-code-marketing\/why-qr-code-not-working\/","title":{"rendered":"Pro\u010d mi nejde naskenovat QR k\u00f3d? \u010cast\u00e9 p\u0159\u00ed\u010diny a \u0159e\u0161en\u00ed"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Skenov\u00e1n\u00ed QR k\u00f3du t\u00e9m\u011b\u0159 v\u017edy sel\u017ee z jedn\u00e9 ze \u0161esti p\u0159\u00ed\u010din: k\u00f3d je p\u0159\u00edli\u0161 mal\u00fd, kontrast je p\u0159\u00edli\u0161 n\u00edzk\u00fd, okraj kolem n\u011bj je p\u0159\u00edli\u0161 \u00fazk\u00fd, odkaz uvnit\u0159 je nefunk\u010dn\u00ed nebo p\u0159\u00edli\u0161 dlouh\u00fd, tisk je rozmazan\u00fd nebo leskl\u00fd, nebo se telefon nem\u016f\u017ee zaost\u0159it. Tato p\u0159\u00edru\u010dka nejprve uv\u00e1d\u00ed rychl\u00e9 kontroly, pot\u00e9 podrobnosti a \u010d\u00edsla pro odstran\u011bn\u00ed ka\u017ed\u00e9 p\u0159\u00ed\u010diny.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rychl\u00fd kontroln\u00ed seznam: Oprava neskenuj\u00edc\u00edho QR k\u00f3du<\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>Otev\u0159ete odkaz sami. Pokud se str\u00e1nka nena\u010dte, k\u00f3d je v po\u0159\u00e1dku a c\u00edl je po\u0161kozen\u00fd. Opravte URL nebo ho zm\u011b\u0148te, pokud je k\u00f3d dynamick\u00fd.<\/li><li>Zkontrolujte velikost. Pro k\u00f3d dr\u017een\u00fd v ruce pou\u017eijte minim\u00e1ln\u011b 2 cm (0,8 palce) na \u0161\u00ed\u0159ku a 1 stopu na \u0161\u00ed\u0159ku pro ka\u017ed\u00fdch 10 stop skenovac\u00ed vzd\u00e1lenosti.<\/li><li>Zkontrolujte kontrast. Pou\u017eijte tmav\u00e9 moduly na sv\u011btl\u00e9m pozad\u00ed, ide\u00e1ln\u011b 4,5:1 nebo vy\u0161\u0161\u00ed. Neobracejte barvy.<\/li><li>Zkontrolujte okraj. Ponechte pr\u00e1zdn\u00fd okraj o \u0161\u00ed\u0159ce alespo\u0148 4 modul\u016f na v\u0161ech \u010dty\u0159ech stran\u00e1ch.<\/li><li>Zkontrolujte tisk. Pou\u017eijte SVG nebo PDF, matn\u00fd povrch a rovn\u00e9 um\u00edst\u011bn\u00ed.<\/li><li>Naskenujte k\u00f3d dv\u011bma r\u016fzn\u00fdmi telefony v osv\u011btlen\u00ed, kde bude k\u00f3d skute\u010dn\u011b pou\u017e\u00edv\u00e1n.<\/li><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Pro\u010d velikost a vzd\u00e1lenost ur\u010duj\u00ed skenovatelnost<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Fyzick\u00e1 velikost QR k\u00f3du je nej\u010dast\u011bj\u0161\u00ed p\u0159\u00ed\u010dinou probl\u00e9m\u016f se skenov\u00e1n\u00edm. Pokud je k\u00f3d p\u0159\u00edli\u0161 mal\u00fd, fotoapar\u00e1t telefonu nedok\u00e1\u017ee rozli\u0161it jednotliv\u00e9 moduly. Pou\u017eijte minim\u00e1ln\u011b 0,8 x 0,8 palce (2 x 2 cm) pro p\u0159edm\u011bty zbl\u00edzka, jako jsou vizitky a obaly produkt\u016f. Pro k\u00f3dy skenovan\u00e9 z d\u00e1lky pou\u017eijte pravidlo 10:1: k\u00f3d prohl\u00ed\u017een\u00fd z 10 stop by m\u011bl b\u00fdt \u0161irok\u00fd alespo\u0148 1 stopu. Plak\u00e1t \u010dten\u00fd ze 3 metr\u016f pot\u0159ebuje k\u00f3d o velikosti asi 30 cm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hust\u011bj\u0161\u00ed data vy\u017eaduj\u00ed v\u00edce modul\u016f a v\u00edce modul\u016f vy\u017eaduje v\u011bt\u0161\u00ed velikost tisku. N\u00e1sleduj\u00edc\u00ed <a href=\"https:\/\/pageloot.com\/cs\/blog\/best-practices-for-qr-code-readability\/\">osv\u011bd\u010den\u00e9 postupy pro \u010ditelnost QR k\u00f3d\u016f<\/a> v\u00e1m pom\u016f\u017ee nastavit proporce p\u0159ed velk\u00fdm tiskem. Pokud si nejste jisti kone\u010dn\u00fdm um\u00edst\u011bn\u00edm, zvolte v\u011bt\u0161\u00ed velikost. Nejv\u00edce to pot\u0159ebuj\u00ed star\u0161\u00ed telefony s fotoapar\u00e1ty s n\u00edzk\u00fdm rozli\u0161en\u00edm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pro\u010d je barevn\u00fd kontrast z\u00e1kladem \u010ditelnosti<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Skenery dek\u00f3duj\u00ed rozd\u00edl mezi tmav\u00fdmi a sv\u011btl\u00fdmi moduly. Pokud je kontrast p\u0159\u00edli\u0161 n\u00edzk\u00fd, software nedok\u00e1\u017ee naj\u00edt vzor na pozad\u00ed. Udr\u017eujte kontrastn\u00ed pom\u011br 4,5:1 nebo vy\u0161\u0161\u00ed, jak je pops\u00e1no v <a href=\"https:\/\/pageloot.com\/cs\/blog\/qr-code-color-contrast-best-practices\/\">osv\u011bd\u010den\u00fdch postup\u016f pro barevn\u00fd kontrast<\/a>. \u010cern\u00e1 na b\u00edl\u00e9 je nejspolehliv\u011bj\u0161\u00ed. Tmav\u011b modr\u00e1, tmav\u011b fialov\u00e1 nebo lesn\u00ed zelen\u00e1 na sv\u011btle \u0161ed\u00e9 nebo kr\u00e9mov\u00e9 tak\u00e9 funguj\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vyhn\u011bte se invertovan\u00fdm k\u00f3d\u016fm (sv\u011btl\u00e9 moduly na tmav\u00e9m pozad\u00ed), proto\u017ee mnoho aplikac\u00ed fotoapar\u00e1t\u016f je nedok\u00e1\u017ee p\u0159e\u010d\u00edst. Vyhn\u011bte se gradient\u016fm a pr\u016fsvitn\u00fdm pozad\u00edm, proto\u017ee vytv\u00e1\u0159ej\u00ed polot\u00f3ny, kter\u00e9 skener vn\u00edm\u00e1 jako ani inkoust, ani pap\u00edr. \u010cerven\u00e1 na b\u00edl\u00e9 je b\u011b\u017en\u00fd probl\u00e9m, proto\u017ee n\u011bkter\u00e9 skenery \u010dtou \u010dervenou jako sv\u011btlou barvu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">D\u016fle\u017eitost klidov\u00e9 z\u00f3ny a odsazen\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Klidov\u00e1 z\u00f3na je pr\u00e1zdn\u00fd okraj kolem v\u0161ech \u010dty\u0159 stran QR k\u00f3du. \u0158\u00edk\u00e1 skeneru, kde k\u00f3d za\u010d\u00edn\u00e1 a kde kon\u010d\u00ed okoln\u00ed design. Norma vy\u017eaduje alespo\u0148 4 moduly okraje. Pokud se text, logo nebo vzor pozad\u00ed dotkne tohoto prostoru, skener m\u016f\u017ee tyto prvky pova\u017eovat za sou\u010d\u00e1st k\u00f3du a skenov\u00e1n\u00ed sel\u017ee.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Udr\u017een\u00ed tohoto okraje \u010dist\u00e9ho je jedn\u00edm z nej\u00fa\u010dinn\u011bj\u0161\u00edch <a href=\"https:\/\/pageloot.com\/cs\/blog\/5-tips-for-faster-qr-code-scanning\/\">tip\u016f pro rychlej\u0161\u00ed skenov\u00e1n\u00ed<\/a>. Um\u00edst\u011bn\u00ed k\u00f3du na b\u00edl\u00fd r\u00e1me\u010dek nebo b\u00edl\u00fd \u0161t\u00edtek je nejjednodu\u0161\u0161\u00ed zp\u016fsob, jak zachovat okraj, kdy\u017e je pozad\u00ed fotografi\u00ed nebo vzorem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Spr\u00e1va slo\u017eitosti dat pomoc\u00ed dynamick\u00fdch QR k\u00f3d\u016f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00f3d, kter\u00fd obsahuje dlouhou URL s mnoha parametry sledov\u00e1n\u00ed, vypad\u00e1 hust\u011b a pixelovan\u011b. Na mal\u00e9 bloky se kamera obt\u00ed\u017en\u011b zaost\u0159uje. A <a href=\"https:\/\/pageloot.com\/cs\/qr-code-generator\/\">gener\u00e1tor QR k\u00f3d\u016f<\/a> kter\u00e1 vytv\u00e1\u0159\u00ed dynamick\u00e9 k\u00f3dy, to \u0159e\u0161\u00ed, proto\u017ee k\u00f3d ukl\u00e1d\u00e1 kr\u00e1tk\u00fd p\u0159esm\u011brovac\u00ed odkaz nam\u00edsto cel\u00e9 adresy. Vzor je jednodu\u0161\u0161\u00ed a skenuje se rychleji.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Statick\u00e9 k\u00f3dy ukl\u00e1daj\u00ed c\u00edl p\u0159\u00edmo do vzoru. Nikdy nevypr\u0161\u00ed a jsou spr\u00e1vnou volbou, kdy\u017e se odkaz nezm\u011bn\u00ed, nap\u0159\u00edklad pevn\u00e1 webov\u00e1 str\u00e1nka nebo p\u0159ihl\u00e1\u0161en\u00ed k Wi-Fi. Slabinou je, \u017ee vyti\u0161t\u011bn\u00fd k\u00f3d nelze upravit. Pokud je str\u00e1nka smaz\u00e1na nebo p\u0159esunuta, ka\u017ed\u00e1 vyti\u0161t\u011bn\u00e1 kopie odkazuje na nefunk\u010dn\u00ed odkaz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dynamick\u00e9 k\u00f3dy v\u00e1m umo\u017e\u0148uj\u00ed zm\u011bnit c\u00edl po tisku, tak\u017ee nefunk\u010dn\u00ed odkaz je opraven b\u011bhem n\u011bkolika minut bez nutnosti nov\u00e9ho tisku. Tak\u00e9 zobrazuj\u00ed statistiky skenov\u00e1n\u00ed. Dynamick\u00e9 k\u00f3dy funguj\u00ed, dokud je v\u00e1\u0161 pl\u00e1n aktivn\u00ed, a st\u00e1vaj\u00ed se neaktivn\u00edmi po skon\u010den\u00ed placen\u00e9ho pl\u00e1nu. M\u016f\u017eete je vyzkou\u0161et s 14denn\u00ed bezplatnou zku\u0161ebn\u00ed verz\u00ed a pl\u00e1ny jsou uvedeny na <a href=\"https:\/\/pageloot.com\/cs\/pricing\/\">pageloot.com\/pricing<\/a>. Neomezen\u00e9 skeny jsou zahrnuty a pl\u00e1ny p\u0159ich\u00e1zej\u00ed s 30denn\u00ed z\u00e1rukou vr\u00e1cen\u00ed pen\u011bz.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Monitorujte svou kampa\u0148 v re\u00e1ln\u00e9m \u010dase<\/strong> Chcete vid\u011bt, kde a kdy va\u0161i z\u00e1kazn\u00edci skenuj\u00ed va\u0161e materi\u00e1ly? Pou\u017eijte <a href=\"https:\/\/pageloot.com\/cs\/qr-code-generator\/\">gener\u00e1tor QR k\u00f3d\u016f<\/a> k vytvo\u0159en\u00ed sledovateln\u00fdch k\u00f3d\u016f a zobrazen\u00ed sken\u016f podle \u010dasu, m\u00edsta a za\u0159\u00edzen\u00ed na va\u0161em \u0159\u00eddic\u00edm panelu.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Jak kvalita tisku a substr\u00e1ty ovliv\u0148uj\u00ed v\u00fdkon<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u017edy tiskn\u011bte z vektorov\u00e9ho souboru, jako je SVG, PDF nebo EPS. Mal\u00fd PNG nebo JPG z\u00edsk\u00e1 p\u0159i zv\u011bt\u0161en\u00ed m\u011bkk\u00e9 hrany a rozmazan\u00e9 hrany zp\u016fsob\u00ed, \u017ee sousedn\u00ed moduly splynou. <a href=\"https:\/\/pageloot.com\/cs\/blog\/how-printing-techniques-impact-qr-code-scannability\/\">dopad tiskov\u00fdch technik<\/a> vysv\u011btluje, jak se srovn\u00e1v\u00e1 ofsetov\u00fd a digit\u00e1ln\u00ed tisk. Pokud mus\u00edte pou\u017e\u00edt PNG, exportujte jej ve velk\u00e9 velikosti, nap\u0159\u00edklad 1000 pixel\u016f nebo v\u00edce pro k\u00f3d ti\u0161t\u011bn\u00fd na 5 cm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/staging.pageloot.com\/wp-content\/uploads\/2026\/04\/square-illustration-0c1c16-6468eb41e670.webp\" alt=\"Porovn\u00e1n\u00ed kvality tisku\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Odlesky jsou druh\u00fdm probl\u00e9mem tisku. Leskl\u00fd pap\u00edr, sklo a plastov\u00e9 obaly odr\u00e1\u017eej\u00ed sv\u011btlo do objektivu a rozost\u0159uj\u00ed moduly. Pou\u017eijte matn\u00fd povrch a um\u00edst\u011bte k\u00f3d na rovnou plochu, nikoli na zak\u0159ivenou l\u00e1hev nebo slo\u017een\u00fd okraj. Pokud mus\u00ed b\u00fdt k\u00f3d na zak\u0159iven\u00e9m povrchu, zv\u011bt\u0161ete jej, abyste vyrovnali zkreslen\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0160t\u00edtky s QR k\u00f3dy a kovov\u00e9 povrchy, kter\u00e9 se neskenuj\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kovov\u00e9 \u0161t\u00edtky, grav\u00edrovan\u00e9 desky a n\u00e1lepky na za\u0159\u00edzen\u00edch selh\u00e1vaj\u00ed \u010dast\u011bji ne\u017e pap\u00edr, a to ze t\u0159\u00ed d\u016fvod\u016f. Leskl\u00fd kov odr\u00e1\u017e\u00ed sv\u011btlo a zakr\u00fdv\u00e1 moduly. Laserem leptan\u00e9 nebo grav\u00edrovan\u00e9 k\u00f3dy maj\u00ed \u010dasto n\u00edzk\u00fd kontrast mezi ozna\u010den\u00fdmi a neozna\u010den\u00fdmi oblastmi. Mal\u00e9 \u0161t\u00edtky vy\u017eaduj\u00ed velmi mal\u00e9 moduly.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Pou\u017eijte matn\u00fd nebo kart\u00e1\u010dovan\u00fd povrch, nebo eloxovan\u00fd \u010di lakovan\u00fd povrch, nam\u00edsto le\u0161t\u011bn\u00e9ho kovu.<\/li><li>Zajist\u011bte jasn\u00fd kontrast. \u010cern\u00e1 barva nebo \u010dern\u00fd inkoust na bled\u00e9m kovu nebo b\u00edl\u00e9m \u0161t\u00edtku je spolehliv\u011bj\u0161\u00ed ne\u017e slab\u00e1 leptan\u00e1 zna\u010dka.<\/li><li>Udr\u017eujte klidovou z\u00f3nu bez \u0161roub\u016f, hran a grav\u00edrovan\u00e9ho textu.<\/li><li>Pou\u017eijte kr\u00e1tk\u00fd odkaz, aby k\u00f3d m\u011bl m\u00e9n\u011b a v\u011bt\u0161\u00ed moduly. Dynamick\u00fd k\u00f3d je zde u\u017eite\u010dn\u00fd, proto\u017ee kovov\u00fd \u0161t\u00edtek nelze levn\u011b p\u0159etisknout.<\/li><li>Otestujte hotov\u00fd \u0161t\u00edtek se dv\u011bma telefony, za denn\u00edho sv\u011btla a v interi\u00e9rov\u00e9m osv\u011btlen\u00ed, ne\u017e objedn\u00e1te d\u00e1vku.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u0158e\u0161en\u00ed probl\u00e9m\u016f se za\u0159\u00edzen\u00edm a prost\u0159ed\u00edm<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u011bkdy je k\u00f3d v po\u0159\u00e1dku a probl\u00e9m je v za\u0159\u00edzen\u00ed nebo v m\u00edst\u011b. Slab\u00e9 osv\u011btlen\u00ed sni\u017euje kontrast a \u0161pinav\u00e1 \u010do\u010dka fotoapar\u00e1tu zp\u016fsobuje rozmaz\u00e1n\u00ed sn\u00edmk\u016f. \u0158ekn\u011bte u\u017eivatel\u016fm, aby si ot\u0159eli \u010do\u010dku a dr\u017eeli telefon 4 a\u017e 12 palc\u016f (10 a\u017e 30 cm) od mal\u00e9ho k\u00f3du. Je d\u016fle\u017eit\u00e9 <a href=\"https:\/\/pageloot.com\/cs\/blog\/how-to-test-qr-codes-for-mobile-usability\/\">testovat QR k\u00f3dy na pou\u017eitelnost na mobiln\u00edch za\u0159\u00edzen\u00edch<\/a> na star\u0161\u00edch telefonech Android a iOS, stejn\u011b jako na nov\u00fdch.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>iPhone: otev\u0159ete aplikaci Fotoapar\u00e1t a nami\u0159te ji na k\u00f3d. Zkontrolujte, zda je v Nastaven\u00ed, Fotoapar\u00e1t zapnuta funkce Skenov\u00e1n\u00ed QR k\u00f3d\u016f.<\/li><li>Android: pou\u017eijte aplikaci Fotoapar\u00e1t nebo Google Lens. Pokud se nic nestane, otev\u0159ete Google Lens p\u0159\u00edmo.<\/li><li>Bez internetu: skenov\u00e1n\u00ed funguje, ale str\u00e1nka se nena\u010dte. Vypad\u00e1 to jako po\u0161kozen\u00fd k\u00f3d, ale nen\u00ed.<\/li><li>Odkaz otev\u00edr\u00e1 \u0161patnou str\u00e1nku nebo chybu: c\u00edl se zm\u011bnil. Zkontrolujte URL a pou\u017eijte dynamick\u00fd k\u00f3d, pokud jej pot\u0159ebujete pozd\u011bji zm\u011bnit.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud um\u00edst\u00edte logo do st\u0159edu k\u00f3du, nastavte korekci chyb na Q (25%) nebo H (30%). \u00darovn\u011b jsou L 7%, M 15%, Q 25% a H 30% vzoru, kter\u00fd m\u016f\u017ee b\u00fdt po\u0161kozen a st\u00e1le \u010diteln\u00fd. Vy\u0161\u0161\u00ed \u00farove\u0148 p\u0159id\u00e1v\u00e1 moduly, tak\u017ee udr\u017eujte logo mal\u00e9 a otestujte ho. Viz <a href=\"https:\/\/pageloot.com\/cs\/blog\/qr-code-usability-best-practices\/\">osv\u011bd\u010den\u00e9 postupy pro pou\u017eitelnost QR k\u00f3d\u016f<\/a> pro testov\u00e1n\u00ed zna\u010dkov\u00fdch design\u016f v re\u00e1ln\u00e9m osv\u011btlen\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spolehliv\u00fd k\u00f3d vy\u017eaduje spr\u00e1vnou velikost, vysok\u00fd kontrast, jasn\u00fd okraj, \u010dist\u00fd vektorov\u00fd tisk a kr\u00e1tk\u00fd odkaz. Otestujte ho na v\u00edce telefonech p\u0159edt\u00edm, ne\u017e vytisknete cel\u00fd n\u00e1klad.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/staging.pageloot.com\/wp-content\/uploads\/2026\/04\/fix-qr-scan-a3de25-1d7758609eb0.webp\" alt=\"Infografika opravy skenov\u00e1n\u00ed QR\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u010casto kladen\u00e9 ot\u00e1zky<\/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\">Pro\u010d je m\u016fj QR k\u00f3d rozmazan\u00fd, kdy\u017e ho tisknu?<\/strong> <p class=\"schema-faq-answer\">Rozost\u0159en\u00ed obvykle poch\u00e1z\u00ed ze souboru s n\u00edzk\u00fdm rozli\u0161en\u00edm, jako je mal\u00fd JPG nebo PNG. St\u00e1hn\u011bte si k\u00f3d jako SVG nebo PDF, kter\u00e9 lze zv\u011bt\u0161it bez ztr\u00e1ty kvality, a vytiskn\u011bte na matn\u00fd povrch.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000001\"><strong class=\"schema-faq-question\">Mohu zm\u011bnit odkaz v m\u00e9m QR k\u00f3du pot\u00e9, co je vyti\u0161t\u011bn?<\/strong> <p class=\"schema-faq-answer\">Pouze pokud se jedn\u00e1 o dynamick\u00fd QR k\u00f3d. Statick\u00fd k\u00f3d ukl\u00e1d\u00e1 c\u00edl p\u0159\u00edmo do vzoru, tak\u017ee jej nelze upravit. Dynamick\u00fd k\u00f3d pou\u017e\u00edv\u00e1 p\u0159esm\u011brovac\u00ed odkaz, tak\u017ee m\u016f\u017eete c\u00edl kdykoli zm\u011bnit ve sv\u00e9m panelu.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000002\"><strong class=\"schema-faq-question\">Pro\u010d moje kamera iPhone nebo Android nerozpozn\u00e1 k\u00f3d?<\/strong> <p class=\"schema-faq-answer\">Obvykl\u00fdmi p\u0159\u00ed\u010dinami jsou n\u00edzk\u00fd kontrast, chyb\u011bj\u00edc\u00ed tich\u00e1 z\u00f3na, p\u0159\u00edli\u0161 mal\u00fd k\u00f3d nebo odlesky. Zkontrolujte, zda je okraj alespo\u0148 4 moduly, moduly jsou mnohem tmav\u0161\u00ed ne\u017e pozad\u00ed a k\u00f3d je \u0161irok\u00fd alespo\u0148 2 cm.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000003\"><strong class=\"schema-faq-question\">Pro\u010d se m\u016fj QR k\u00f3d na kovov\u00e9 visa\u010dce neda\u0159\u00ed naskenovat?<\/strong> <p class=\"schema-faq-answer\">Leskl\u00fd kov odr\u00e1\u017e\u00ed sv\u011btlo a ryt\u00e9 zna\u010dky maj\u00ed \u010dasto n\u00edzk\u00fd kontrast. Pou\u017eijte matn\u00fd nebo lakovan\u00fd povrch, vysoce kontrastn\u00ed \u010dernou na sv\u011btl\u00e9m podkladu, jasn\u00fd okraj a kr\u00e1tk\u00fd odkaz, a pot\u00e9 otestujte zna\u010dku na dvou telefonech.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000004\"><strong class=\"schema-faq-question\">Vypr\u0161\u00ed platnost QR k\u00f3d\u016f?<\/strong> <p class=\"schema-faq-answer\">Statick\u00e9 QR k\u00f3dy nikdy nevypr\u0161\u00ed. Dynamick\u00e9 k\u00f3dy funguj\u00ed, dokud je v\u00e1\u0161 pl\u00e1n aktivn\u00ed, a po skon\u010den\u00ed placen\u00e9ho pl\u00e1nu se stanou neaktivn\u00edmi.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-000000000005\"><strong class=\"schema-faq-question\">Jak velk\u00fd by m\u011bl b\u00fdt QR k\u00f3d?<\/strong> <p class=\"schema-faq-answer\">Minim\u00e1ln\u011b 2 x 2 cm (0,8 x 0,8 palce) pro objekty zbl\u00edzka. Pro skenov\u00e1n\u00ed na d\u00e1lku pou\u017eijte 1 stopu \u0161\u00ed\u0159ky na ka\u017ed\u00fdch 10 stop vzd\u00e1lenosti.<\/p> <\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Odstra\u0148te probl\u00e9my se selh\u00e1n\u00edm QR k\u00f3d\u016f a nau\u010dte se, jak opravit probl\u00e9my se skenov\u00e1n\u00edm. Optimalizujte velikost, kontrast a tich\u00e9 z\u00f3ny nebo pou\u017eijte dynamick\u00e9 k\u00f3dy k zaji\u0161t\u011bn\u00ed spolehliv\u00e9ho skenov\u00e1n\u00ed.<\/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 v28.5) - 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\/cs\/qr-code-marketing\/why-qr-code-not-working\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\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? Check size, contrast, margin, link and print quality with this quick checklist, then fix each cause with exact numbers.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pageloot.com\/cs\/qr-code-marketing\/why-qr-code-not-working\/\" \/>\n<meta property=\"og:site_name\" content=\"Pageloot\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pageloot\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-05-01T19:26:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-23T06:00:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/04\/modern-indoor-scanning-103100-b51fa00a1ae4.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Siim T\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Why Is My QR Code Not Working? Common Fixes for Scan Failures\" \/>\n<meta name=\"twitter:creator\" content=\"@getpageloot\" \/>\n<meta name=\"twitter:site\" content=\"@getpageloot\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"Siim T\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minut\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/qr-code-marketing\\\/why-qr-code-not-working\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/qr-code-marketing\\\/why-qr-code-not-working\\\/\"},\"author\":{\"name\":\"Siim T\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/es\\\/#\\\/schema\\\/person\\\/fa28992c2e52546f0812833bac852dfe\"},\"headline\":\"Why Is My QR Code Not Working? 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D\u00edky sv\u00fdm hlubok\u00fdm odborn\u00fdm znalostem, kter\u00e9 se v\u00edce ne\u017e 5 let t\u00fdkaj\u00ed v\u00fdhradn\u011b QR k\u00f3d\u016f, se Siim stal odborn\u00edkem v t\u00e9to oblasti. V\u00fdznamn\u011b se zasazuje o vyu\u017eit\u00ed technologie QR ke zjednodu\u0161en\u00ed a roz\u0161\u00ed\u0159en\u00ed digit\u00e1ln\u00edch interakc\u00ed. Jeho cesta v\u0161ak neza\u010dala jen zde. 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Download the code as SVG or PDF, which can be enlarged without losing quality, and print on a matte surface.","inLanguage":"cs"},"inLanguage":"cs"},{"@type":"Question","@id":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000001","position":2,"url":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000001","name":"Mohu zm\u011bnit odkaz v m\u00e9m QR k\u00f3du pot\u00e9, co je vyti\u0161t\u011bn?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Only if it is a dynamic QR code. A static code stores the destination in the pattern, so it cannot be edited. A dynamic code uses a redirect link, so you can change the destination in your dashboard at any time.","inLanguage":"cs"},"inLanguage":"cs"},{"@type":"Question","@id":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000002","position":3,"url":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000002","name":"Pro\u010d m\u016fj fotoapar\u00e1t iPhonu nebo Androidu nerozpozn\u00e1 k\u00f3d?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The usual causes are low contrast, a missing quiet zone, a code that is too small, or glare. Check that the margin is at least 4 modules, the modules are much darker than the background, and the code is at least 2 cm wide.","inLanguage":"cs"},"inLanguage":"cs"},{"@type":"Question","@id":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000003","position":4,"url":"https:\/\/pageloot.com\/qr-code-marketing\/why-qr-code-not-working\/#faq-question-000000000003","name":"Pro\u010d se m\u016fj QR k\u00f3d na kovov\u00e9 visa\u010dce neda\u0159\u00ed naskenovat?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Shiny metal reflects light, and etched marks often have low contrast. 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":"cs"},"inLanguage":"cs"},{"@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":"Vypr\u0161\u00ed platnost QR k\u00f3d\u016f?","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":"cs"},"inLanguage":"cs"},{"@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":"Jak velk\u00fd by m\u011bl b\u00fdt QR k\u00f3d?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"At least 2 x 2 cm (0.8 x 0.8 inches) for close-range items. 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