{"id":48658,"date":"2025-03-03T09:58:40","date_gmt":"2025-03-03T09:58:40","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=48658"},"modified":"2026-02-21T07:26:28","modified_gmt":"2026-02-21T07:26:28","slug":"android-ussd-unstructured-supplementary-service-data-or-mmi-man-machine-interface-codes","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/android-ussd-unstructured-supplementary-service-data-or-mmi-man-machine-interface-codes\/","title":{"rendered":"Android USSD (Unstructured Supplementary Service Data) or MMI (Man-Machine Interface) codes"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"564\" height=\"947\" src=\"https:\/\/www.devopsschool.com\/blog\/wp-content\/uploads\/2025\/03\/26938e8ad4de09e487426e4b1d8c6318.jpg\" alt=\"\" class=\"wp-image-48659\" srcset=\"https:\/\/www.devopsschool.com\/blog\/wp-content\/uploads\/2025\/03\/26938e8ad4de09e487426e4b1d8c6318.jpg 564w, https:\/\/www.devopsschool.com\/blog\/wp-content\/uploads\/2025\/03\/26938e8ad4de09e487426e4b1d8c6318-179x300.jpg 179w\" sizes=\"auto, (max-width: 564px) 100vw, 564px\" \/><\/figure>\n\n\n\n<p>Android devices come equipped with a variety of secret codes\u2014also known as USSD (Unstructured Supplementary Service Data) or MMI (Man-Machine Interface) codes\u2014that allow users to access hidden features, perform diagnostics, and retrieve information. These codes are entered directly into the phone&#8217;s dialer and can execute specific functions without the need for additional applications. Below is a comprehensive list of these codes, updated as of 2026:\ue206<\/p>\n\n\n\n<p><strong>General Information Codes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>*#06#<\/code> \u2013 Display the device&#8217;s IMEI number.\ue206<\/li>\n\n\n\n<li><code>*#07#<\/code> \u2013 Show the device&#8217;s SAR (Specific Absorption Rate) information.\ue206<\/li>\n\n\n\n<li><code>*#*#225#*#*<\/code> \u2013 Access calendar storage information.\ue206<\/li>\n\n\n\n<li><code>*#*#426#*#*<\/code> \u2013 View Google Play Services diagnostics.\ue206<\/li>\n\n\n\n<li><code>*#*#759#*#*<\/code> \u2013 Open the Rlz Debug UI.\ue206<\/li>\n<\/ul>\n\n\n\n<p><strong>Testing and Diagnostic Codes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>*#*#4636#*#*<\/code> \u2013 Access detailed phone information, usage statistics, and battery status.\ue206<\/li>\n\n\n\n<li><code>*#*#0*#*#*<\/code> \u2013 Initiate LCD display test.\ue206<\/li>\n\n\n\n<li><code>*#*#2664#*#*<\/code> \u2013 Perform a touchscreen test.\ue206<\/li>\n\n\n\n<li><code>*#*#232331#*#*<\/code> \u2013 Conduct a Bluetooth test.\ue206<\/li>\n\n\n\n<li><code>*#*#1472365#*#*<\/code> \u2013 Run a quick GPS test.\ue206<\/li>\n\n\n\n<li><code>*#*#1575#*#*<\/code> \u2013 Execute a full GPS test.\ue206<\/li>\n\n\n\n<li><code>*#*#0289#*#*<\/code> or <code>*#*#0673#*#*<\/code> \u2013 Initiate an audio test.\ue206<\/li>\n\n\n\n<li><code>*#*#0842#*#*<\/code> \u2013 Test vibration and backlight functions.\ue206<\/li>\n\n\n\n<li><code>*#*#0588#*#*<\/code> \u2013 Assess the proximity sensor.\ue206<\/li>\n\n\n\n<li><code>*#*#0589#*#*<\/code> \u2013 Evaluate the light sensor.\ue206<\/li>\n<\/ul>\n\n\n\n<p><strong>Firmware and Software Information Codes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>*#*#1234#*#*<\/code> \u2013 Display PDA software version.\ue206<\/li>\n\n\n\n<li><code>*#*#1111#*#*<\/code> \u2013 Show FTA software version.\ue206<\/li>\n\n\n\n<li><code>*#*#2222#*#*<\/code> \u2013 Reveal FTA hardware version.\ue206<\/li>\n\n\n\n<li><code>*#12580*369#<\/code> \u2013 Provide software and hardware information.\ue206<\/li>\n\n\n\n<li><code>*#7465625#<\/code> \u2013 Check device lock status.\ue206<\/li>\n\n\n\n<li><code>*#*#232338#*#*<\/code> \u2013 Display Wi-Fi MAC address.\ue206<\/li>\n\n\n\n<li><code>*#*#232337#*#<\/code> \u2013 Show Bluetooth address.\ue206<\/li>\n\n\n\n<li><code>*#*#44336#*#*<\/code> \u2013 View software version and update information.\ue206<\/li>\n<\/ul>\n\n\n\n<p><strong>Configuration and Debugging Codes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>*#9090#<\/code> \u2013 Access diagnostic configuration.\ue206<\/li>\n\n\n\n<li><code>*#301279#<\/code> \u2013 Modify HSDPA\/HSUPA settings.\ue206<\/li>\n\n\n\n<li><code>*#872564#<\/code> \u2013 Control USB logging.\ue206<\/li>\n\n\n\n<li><code>*#9900#<\/code> \u2013 Enter system dump mode.\ue206<\/li>\n\n\n\n<li><code>*#746#<\/code> \u2013 Open debug dump menu.\ue206<\/li>\n<\/ul>\n\n\n\n<p><strong>SIM and Network Codes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>*#*#7780#*#*<\/code> \u2013 Perform a factory data reset (soft reset).\ue206<\/li>\n\n\n\n<li><code>*2767*3855#<\/code> \u2013 Initiate a full factory reset (hard reset).\ue206<\/li>\n\n\n\n<li><code>*#*#273282*255*663282*#*#*<\/code> \u2013 Back up all media files.\ue206<\/li>\n\n\n\n<li><code>*#*#526#*#*<\/code> or <code>*#*#232339#*#*<\/code> \u2013 Conduct a WLAN test.\ue206<\/li>\n\n\n\n<li><code>*#*#7262626#*#*<\/code> \u2013 Enter field test mode.\ue206<\/li>\n\n\n\n<li><code>*#*#0283#*#*<\/code> \u2013 Perform a packet loopback test.\ue206<\/li>\n<\/ul>\n\n\n\n<p><strong>Manufacturer-Specific Codes:<\/strong><\/p>\n\n\n\n<p><em>Note: These codes may vary depending on the device model and manufacturer.<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Samsung:<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>*#0*#<\/code> \u2013 Access the general test mode.\ue206<\/li>\n\n\n\n<li><code>*#1234#<\/code> \u2013 Display software version information.\ue206<\/li>\n\n\n\n<li><code>*#12580*369#<\/code> \u2013 Show software and hardware information.\ue206<\/li>\n\n\n\n<li><code>*#0228#<\/code> \u2013 Check battery status.\ue206<\/li>\n\n\n\n<li><code>*#0011#<\/code> \u2013 View GSM status information.\ue206<\/li>\n\n\n\n<li><code>*#0283#<\/code> \u2013 Perform audio loopback control.\ue206<\/li>\n\n\n\n<li><code>*#9090#<\/code> \u2013 Access diagnostic configuration.\ue206<\/li>\n\n\n\n<li><code>*#0808#<\/code> \u2013 Set USB settings.\ue206<\/li>\n\n\n\n<li><code>*#2663#<\/code> \u2013 Display touch screen version.\ue206<\/li>\n\n\n\n<li><code>*#34971539#<\/code> \u2013 Access camera firmware menu.\ue206<\/li>\n\n\n\n<li><code>*#0589#<\/code> \u2013 Test light sensor.\ue206<\/li>\n\n\n\n<li><code>*#0588#<\/code> \u2013 Test proximity sensor.\ue206<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Xiaomi:<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>*#*#64663#*#*<\/code> \u2013 Enter hardware test mode.\ue206<\/li>\n\n\n\n<li>`<em>#<\/em>#6484<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Android devices come equipped with a variety of secret codes\u2014also known as USSD (Unstructured Supplementary Service Data) or MMI (Man-Machine Interface) codes\u2014that allow users to access hidden features, perform diagnostics, and retrieve information. These codes are entered directly into the phone&#8217;s dialer and can execute specific functions without the need for additional applications. Below is&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_joinchat":[],"footnotes":""},"categories":[2],"tags":[],"class_list":["post-48658","post","type-post","status-publish","format-standard","hentry","category-uncategorised"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/48658","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=48658"}],"version-history":[{"count":2,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/48658\/revisions"}],"predecessor-version":[{"id":58911,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/48658\/revisions\/58911"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=48658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=48658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=48658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}