{"product_id":"samsung-galaxy-s20-signal-antenna-flex-cable-replacement","title":"Samsung Galaxy S20 Signal Antenna Flex Cable Replacement | SM-G980F SM-G981B","description":"\u003cstyle\u003e\n#spp{--ink:#0b0b0c;--txt:#1d1d1f;--mut:#6e6e73;--line:#e5e5ea;--soft:#f5f5f7;font-family:-apple-system,BlinkMacSystemFont,'SF Pro Text','Helvetica Neue',Helvetica,Arial,sans-serif;max-width:1080px;margin:0 auto;color:var(--txt);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}\n#spp *{box-sizing:border-box}\n#spp svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}\n#spp .wrap{border:1px solid var(--line);border-top:0;border-radius:0 0 22px 22px;padding:44px 32px 20px;background:#fff}\n#spp .eb{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--mut);font-weight:600;margin:0 0 8px}\n#spp 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svg{width:19px;height:19px}\n@media (max-width:760px){#spp .facts,#spp .trust{grid-template-columns:1fr 1fr}#spp .fact{padding:14px;gap:12px}#spp .fact .ico{width:40px;height:40px}}\n@media (max-width:760px){#spp .wrap{padding:30px 18px 10px}#spp h2{font-size:26px}#spp .two{grid-template-columns:1fr}#spp dl.spec{grid-template-columns:40% 1fr}#spp .dark{padding:24px 18px}}\n\u003c\/style\u003e\n\u003carticle id=\"spp\"\u003e\n  \u003cdiv class=\"wrap\" style=\"border:0;border-radius:0;padding:8px 0 0\"\u003e\n    \u003cp class=\"eb\"\u003eSignal Antenna Flex Cable\u003c\/p\u003e\n    \u003ch2\u003eSamsung Galaxy S20 Signal Antenna Flex Cable Replacement\u003c\/h2\u003e\n    \u003cdiv class=\"qa\" id=\"quick-answer\"\u003e\n\u003cb\u003eQuick answer\u003c\/b\u003eThis is a replacement signal antenna flex cable for the Samsung Galaxy S20 (model SM-G980F or SM-G981B). It fixes weak or dropping mobile signal caused by a damaged or loose signal flex cable. It does not fit the Galaxy S20+, S20 Ultra, S20 FE, S21 or any other model. We recommend professional installation.\u003c\/div\u003e\n    \u003cdiv class=\"facts\"\u003e\n      \u003cdiv class=\"fact\"\u003e\n\u003cdiv class=\"ico c-blue\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003crect x=\"6.5\" y=\"2.5\" width=\"11\" height=\"19\" rx=\"2.8\" class=\"f\"\u003e\u003c\/rect\u003e\u003crect x=\"6.5\" y=\"2.5\" width=\"11\" height=\"19\" rx=\"2.8\"\u003e\u003c\/rect\u003e\u003ccircle cx=\"14.6\" cy=\"5.8\" r=\"1.1\" class=\"d\"\u003e\u003c\/circle\u003e\u003cpath d=\"M10.5 18.6h3\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdl\u003e\n\u003cdt\u003eFits\u003c\/dt\u003e\n\u003cdd\u003eSamsung Galaxy S20\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"fact\"\u003e\n\u003cdiv class=\"ico c-green\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"8.5\" class=\"f\"\u003e\u003c\/circle\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"8.5\"\u003e\u003c\/circle\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"4\"\u003e\u003c\/circle\u003e\u003cpath d=\"M9.8 9.6a3 3 0 0 1 2-1\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdl\u003e\n\u003cdt\u003eFixes\u003c\/dt\u003e\n\u003cdd\u003eWeak signal\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"fact\"\u003e\n\u003cdiv class=\"ico c-purple\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2.8l7.5 3v6c0 4.7-3.2 7.9-7.5 9.4-4.3-1.5-7.5-4.7-7.5-9.4v-6z\" class=\"f\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 2.8l7.5 3v6c0 4.7-3.2 7.9-7.5 9.4-4.3-1.5-7.5-4.7-7.5-9.4v-6z\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.6 12.2l2.4 2.4 4.6-4.8\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdl\u003e\n\u003cdt\u003eQuality\u003c\/dt\u003e\n\u003cdd\u003eBrand new, OEM quality\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"fact\"\u003e\n\u003cdiv class=\"ico c-orange\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M14.8 6.2a4.2 4.2 0 0 0-5.6 5.6L3.5 17.5l3 3 5.7-5.7a4.2 4.2 0 0 0 5.6-5.6l-2.5 2.5-2.6-.5-.5-2.6z\" class=\"f\"\u003e\u003c\/path\u003e\u003cpath d=\"M14.8 6.2a4.2 4.2 0 0 0-5.6 5.6L3.5 17.5l3 3 5.7-5.7a4.2 4.2 0 0 0 5.6-5.6l-2.5 2.5-2.6-.5-.5-2.6z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdl\u003e\n\u003cdt\u003eFitting\u003c\/dt\u003e\n\u003cdd\u003eProfessional install\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"trust\"\u003e\n      \u003cdiv\u003e\n\u003cdiv class=\"ico c-red\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003ccircle cx=\"12\" cy=\"9\" r=\"6\" class=\"f\"\u003e\u003c\/circle\u003e\u003ccircle cx=\"12\" cy=\"9\" r=\"6\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 6.2l.9 1.8 2 .3-1.4 1.4.3 2-1.8-.9-1.8.9.3-2-1.4-1.4 2-.3z\" class=\"d\"\u003e\u003c\/path\u003e\u003cpath d=\"M8.5 13.8L7 21l5-2.6 5 2.6-1.5-7.2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003eeBay Top Rated\u003csmall\u003eUK seller\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cdiv class=\"ico c-blue\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M2.5 6.5h11v9h-11z\" class=\"f\"\u003e\u003c\/path\u003e\u003cpath d=\"M2.5 6.5h11v9h-11zM13.5 9.5h4l3 3.2v2.8h-7\"\u003e\u003c\/path\u003e\u003ccircle cx=\"6.5\" cy=\"17.5\" r=\"1.9\"\u003e\u003c\/circle\u003e\u003ccircle cx=\"16.5\" cy=\"17.5\" r=\"1.9\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003eFree tracked\u003csmall\u003eUK orders over £5\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cdiv class=\"ico c-green\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"8.5\" class=\"f\"\u003e\u003c\/circle\u003e\u003cpath d=\"M4.5 12a7.5 7.5 0 1 0 2.2-5.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M4.5 4.2v3.6h3.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 8.5V12l2.5 1.6\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003eSame-day dispatch\u003csmall\u003eBefore 4pm, Mon–Fri\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cdiv class=\"ico c-purple\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M6 2.8h12v18.4l-2.4-1.6-2.4 1.6-2.4-1.6-2.4 1.6L6 19.6z\" class=\"f\"\u003e\u003c\/path\u003e\u003cpath d=\"M6 2.8h12v18.4l-2.4-1.6-2.4 1.6-2.4-1.6-2.4 1.6L6 19.6z\"\u003e\u003c\/path\u003e\u003cpath d=\"M13.6 8.2a2 2 0 0 0-3.4 1.4V14M9.2 11.4h3.4M9.2 14h5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003eVAT invoice\u003csmall\u003eEvery order\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003csection aria-labelledby=\"what\"\u003e\n      \u003cp class=\"eb\"\u003eOverview\u003c\/p\u003e\n      \u003ch3 id=\"what\"\u003eWhat this part is\u003c\/h3\u003e\n      \u003cp\u003eThis is the signal flex cable for the Samsung Galaxy S20. It carries the radio signal between the main board and the antenna parts of the phone. If it is torn, pinched or unplugged after a repair, signal can drop or disappear.\u003c\/p\u003e\n\u003cp\u003eCheck your SIM in another phone and look for network outages first. Compare your old cable with the photos before ordering, as the connector ends and route must match.\u003c\/p\u003e\n    \u003c\/section\u003e\n    \u003csection aria-labelledby=\"compat\"\u003e\n      \u003cp class=\"eb\"\u003eCompatibility\u003c\/p\u003e\n      \u003ch3 id=\"compat\"\u003eSpecifications and compatibility\u003c\/h3\u003e\n      \u003cdl class=\"spec\"\u003e\n        \u003cdt\u003ePart\u003c\/dt\u003e\n\u003cdd\u003eSignal Antenna Flex Cable\u003c\/dd\u003e\n        \u003cdt\u003eCompatible with\u003c\/dt\u003e\n\u003cdd\u003eSamsung Galaxy S20\u003c\/dd\u003e\n        \u003cdt\u003eModel numbers\u003c\/dt\u003e\n\u003cdd\u003eSM-G980F · SM-G981B\u003c\/dd\u003e\n        \u003cdt\u003eDoes not fit\u003c\/dt\u003e\n\u003cdd\u003eGalaxy S20+, S20 Ultra, S20 FE, S21 or any other model\u003c\/dd\u003e\n        \u003cdt\u003eFixes\u003c\/dt\u003e\n\u003cdd\u003eWeak or dropping mobile signal caused by a damaged or loose signal flex cable\u003c\/dd\u003e\n        \u003cdt\u003eDoes not fix\u003c\/dt\u003e\n\u003cdd\u003eNetwork outages, SIM faults, main board modem faults or software faults\u003c\/dd\u003e\n        \u003cdt\u003eQuality\u003c\/dt\u003e\n\u003cdd\u003eBrand new, OEM-quality signal antenna flex cable. Tested before dispatch.\u003c\/dd\u003e\n        \u003cdt\u003eBrand\u003c\/dt\u003e\n\u003cdd\u003eUnbranded, compatible with Samsung Galaxy S20\u003c\/dd\u003e\n        \u003cdt\u003eIn the box\u003c\/dt\u003e\n\u003cdd\u003e1 × signal flex cable. Check the photos for any extra items.\u003c\/dd\u003e\n        \u003cdt\u003eColour\u003c\/dt\u003e\n\u003cdd\u003eAs shown in the photos\u003c\/dd\u003e\n        \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eProfessional installation recommended\u003c\/dd\u003e\n        \u003cdt\u003eSupplied by\u003c\/dt\u003e\n\u003cdd\u003eSupreme Phone Parts Ltd, Manchester, UK\u003c\/dd\u003e\n      \u003c\/dl\u003e\n    \u003c\/section\u003e\n    \u003csection aria-labelledby=\"right\"\u003e\n      \u003cp class=\"eb\"\u003eBefore you order\u003c\/p\u003e\n      \u003ch3 id=\"right\"\u003eIs this the right part?\u003c\/h3\u003e\n      \u003cdiv class=\"two\"\u003e\n        \u003cdiv class=\"card\"\u003e\n\u003ch4\u003eSigns it needs replacing\u003c\/h4\u003e\n\u003cul class=\"tick\"\u003e\n\u003cli\u003e\n\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12.5l5 5L20 6.5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan\u003eSignal is weak or drops after a drop or repair\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12.5l5 5L20 6.5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan\u003eThe phone shows no service in places where others get signal\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12.5l5 5L20 6.5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan\u003eThe signal cable is torn, pinched or loose\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M4 12.5l5 5L20 6.5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan\u003eMobile data is slow even with good coverage\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"card\"\u003e\n\u003ch4\u003eHow to check your model\u003c\/h4\u003e\n\u003cp\u003eOpen \u003cstrong\u003eSettings › About phone\u003c\/strong\u003e. The name should read \u003cstrong\u003eGalaxy S20\u003c\/strong\u003e and the model number should start SM-G980 or SM-G981. Compare your old part with the photos before fitting.\u003c\/p\u003e\n\u003cp class=\"mut\" style=\"margin:0\"\u003eThe Galaxy S20 has a 6.2-inch screen and three rear cameras. The S20+ is larger at 6.7 inches, and the S20 FE has a flat 6.5-inch screen.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/section\u003e\n    \u003csection aria-labelledby=\"install\"\u003e\n      \u003cdiv class=\"dark\"\u003e\n        \u003cp class=\"eb\"\u003eProfessional installation\u003c\/p\u003e\n        \u003ch3 id=\"install\"\u003eHow a technician fits this part\u003c\/h3\u003e\n        \u003col class=\"steps\"\u003e\n\u003cli\u003e\u003cspan\u003ePower the phone off and remove the SIM tray.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWarm the back cover to soften the adhesive and lift it off carefully.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemove the screws and inner panels, then disconnect the battery.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnplug the old signal cable from both ends and remove it.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFit the new cable in the same route and press each end firmly home.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReconnect the battery, test signal and calls, then seal the back cover.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n        \u003cp class=\"note\"\u003eCheck that the part matches the device before fitting it or removing any adhesive backing. Once a part has been fitted, it cannot be returned for a change of mind. Faulty parts are always covered.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/section\u003e\n    \u003csection aria-labelledby=\"faq\"\u003e\n      \u003cp class=\"eb\"\u003eFAQ\u003c\/p\u003e\n      \u003ch3 id=\"faq\"\u003eFrequently asked questions\u003c\/h3\u003e\n      \u003cdetails\u003e\u003csummary\u003eWill this fit my S20?\u003c\/summary\u003e\u003cp\u003eYes, if Settings › About phone shows Galaxy S20 (model SM-G980F or SM-G981B). It does not fit the Galaxy S20+, S20 Ultra, S20 FE, S21.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it fit the Galaxy S20 FE?\u003c\/summary\u003e\u003cp\u003eNo. The S20 FE is a different phone with a flat screen and a different internal layout. This part is for the Galaxy S20 only.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow do I know the cable is the fault?\u003c\/summary\u003e\u003cp\u003eIf your SIM works in another phone and signal dropped after a knock or repair, the cable may be damaged or unplugged. A technician can check it once the back is off.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs it made by Samsung?\u003c\/summary\u003e\u003cp\u003eNo. It is a brand new, OEM-quality signal antenna flex cable made to fit the Samsung Galaxy S20, and it is tested before dispatch.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eShould I fit it myself?\u003c\/summary\u003e\u003cp\u003eWe recommend professional installation. The S20 back cover is glued on and needs heat to remove, and the battery must be disconnected first.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow quickly will it arrive?\u003c\/summary\u003e\u003cp\u003eOrders placed before 4pm on a working day are dispatched the same day from Manchester by Royal Mail Tracked. Delivery is free on UK orders over £5. You can also collect from our shop at 33 Moulton Street, Manchester M8 8FQ.\u003c\/p\u003e\u003c\/details\u003e\n    \u003c\/section\u003e\n    \u003cp class=\"by\"\u003ePrepared by the Supreme Phone Parts team, Manchester. Last updated September 2026.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003c\/article\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Will this fit my S20?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, if Settings › About phone shows Galaxy S20 (model SM-G980F or SM-G981B). It does not fit the Galaxy S20+, S20 Ultra, S20 FE, S21.\"}},{\"@type\":\"Question\",\"name\":\"Does it fit the Galaxy S20 FE?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The S20 FE is a different phone with a flat screen and a different internal layout. This part is for the Galaxy S20 only.\"}},{\"@type\":\"Question\",\"name\":\"How do I know the cable is the fault?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"If your SIM works in another phone and signal dropped after a knock or repair, the cable may be damaged or unplugged. A technician can check it once the back is off.\"}},{\"@type\":\"Question\",\"name\":\"Is it made by Samsung?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is a brand new, OEM-quality signal antenna flex cable made to fit the Samsung Galaxy S20, and it is tested before dispatch.\"}},{\"@type\":\"Question\",\"name\":\"Should I fit it myself?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"We recommend professional installation. The S20 back cover is glued on and needs heat to remove, and the battery must be disconnected first.\"}},{\"@type\":\"Question\",\"name\":\"How quickly will it arrive?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Orders placed before 4pm on a working day are dispatched the same day from Manchester by Royal Mail Tracked. Delivery is free on UK orders over £5. You can also collect from our shop at 33 Moulton Street, Manchester M8 8FQ.\"}}]},{\"@type\":\"HowTo\",\"name\":\"How to fit a Samsung Galaxy S20 Signal Antenna Flex Cable Replacement\",\"description\":\"Recommended fitting procedure for a trained repair technician.\",\"step\":[{\"@type\":\"HowToStep\",\"position\":1,\"text\":\"Power the phone off and remove the SIM tray.\"},{\"@type\":\"HowToStep\",\"position\":2,\"text\":\"Warm the back cover to soften the adhesive and lift it off carefully.\"},{\"@type\":\"HowToStep\",\"position\":3,\"text\":\"Remove the screws and inner panels, then disconnect the battery.\"},{\"@type\":\"HowToStep\",\"position\":4,\"text\":\"Unplug the old signal cable from both ends and remove it.\"},{\"@type\":\"HowToStep\",\"position\":5,\"text\":\"Fit the new cable in the same route and press each end firmly home.\"},{\"@type\":\"HowToStep\",\"position\":6,\"text\":\"Reconnect the battery, test signal and calls, then seal the back cover.\"}]}]}\u003c\/script\u003e\n","brand":"SUPREME PHONE PARTS LTD","offers":[{"title":"Default Title","offer_id":54879594578266,"sku":"SPA1469","price":4.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9947\/2730\/files\/Galaxy-S20-WiFi-Antenna-Flex_01.jpg?v=1790704436","url":"https:\/\/supremephoneparts.com\/products\/samsung-galaxy-s20-signal-antenna-flex-cable-replacement","provider":"SUPREME PHONE PARTS LTD","version":"1.0","type":"link"}