{"id":20246,"date":"2023-09-04T09:53:52","date_gmt":"2023-09-04T09:53:52","guid":{"rendered":"https:\/\/www.androiddata-recovery.com\/blog\/?p=20246"},"modified":"2023-10-19T05:29:20","modified_gmt":"2023-10-19T05:29:20","slug":"invalid-mmi-code","status":"publish","type":"post","link":"https:\/\/www.androiddata-recovery.com\/blog\/invalid-mmi-code","title":{"rendered":"7 Ways to Fix Invalid MMI Code"},"content":{"rendered":"<div class=\"9e0d31c3d9a5bd51264e5f5e82004137\" data-index=\"1\" style=\"float: none; margin:15px 0 15px 0; text-align:center;\">\n<style>\r\n.leaderboard { width: 320px; height: 100px; }\r\n@media(min-width: 500px) { .leaderboard { width: 468px; height: 60px; } }\r\n@media(min-width: 800px) { .leaderboard { width: 728px; height: 90px; } }\r\n<\/style>\r\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-8329139124199643\" crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle leaderboard\"\r\n     style=\"display:inline-block\"\r\n\t data-full-width-responsive=\"true\"\r\n     data-ad-client=\"ca-pub-8329139124199643\"\r\n     data-ad-slot=\"1972481166\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p style=\"text-align: justify;\"><strong>Man Machine Interface (MMI)<\/strong> code plays an important role in enhancing our mobile experiences. However, at times, users may come across an enigmatic error called &#8220;<strong>invalid MMI code<\/strong>&#8220;, which can be frustrating.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-20258\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/invalid-mmi-code.png\" alt=\"invalid mmi code\" width=\"371\" height=\"217\" \/><\/p>\n<p style=\"text-align: justify;\"><!--more--><\/p>\n<p style=\"text-align: justify;\">Well, if you are getting this error, do not worry. In this brief guide, we have explained the possible reasons behind this error and suggest you few workarounds to deal with the same.<\/p>\n<p>So, keep reading further\u2026<\/p>\n<div style='margin: 8px 0; clear: both;'>\n\t<div style='background: #f3f5fe; padding: 12px;'>\n\t<p><strong style='font-size: 18px;'>To fix several Android issues and errors, we recommend this tool:<\/strong><\/p>\n\t<p style='font-size: 17px;'>This effective tool can fix Android issues such as boot loop, black screen, bricked Android, etc. in no time. Just follow these 3 easy steps:<\/p>\n\t<div><ol style='font-size: 17px; margin-top: 4px;'>\n\t<li><strong><a href='https:\/\/www.androiddata-recovery.com\/blog\/free-download-android-repair'>Download this Android System Repair<\/a><\/strong> tool (for PC only) rated <i>Excellent<\/i> on Trustpilot.<\/li>\n\t<li>Launch the program and select brand, name, model, country\/region, and carrier & click <b>Next<\/b>.<\/li>\n\t<li>Follow the on-screen instructions & wait for repair process to complete.<\/li>\n\t<\/ol><\/div><\/div><\/div><br>\n<h2 style=\"text-align: left;\">What is MMI Code?<\/h2>\n<p style=\"text-align: justify;\">MMI codes are numerical combinations with <strong>*<\/strong> or <strong>#\u00a0<\/strong>in the beginning,\u00a0to communicate with the carrier&#8217;s network and obtain various information, such as available balance or activating any services.<\/p>\n<p style=\"text-align: justify;\">However, different mobile brands or networks have different sets of MMI codes. Not all MMI codes work on all networks or phone models. So, entering the incorrect set of codes can lead you to a <strong>connection or invalid MMI code<\/strong> error.<\/p>\n<h2 style=\"text-align: left;\">What Causes Connection or Invalid MMI Code Error?<\/h2>\n<p>Well, this error can occur due to a multitude of reasons. However, some of the common ones are listed below:<\/p>\n<ul>\n<li>Wrongly entered code format<\/li>\n<li>Unrecognized or unsupported code<\/li>\n<li>Network issues or temporary disruptions<\/li>\n<li>SIM card issues such as loose connection or damage.<\/li>\n<\/ul>\n<h2 style=\"text-align: left;\">How to Fix Invalid MMI Code Error?<\/h2>\n<div class=\"su-note\"  style=\"border-color:#dad9d9;border-radius:2px;-moz-border-radius:2px;-webkit-border-radius:2px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#f4f3f3;border-color:#ffffff;color:#333333;border-radius:2px;-moz-border-radius:2px;-webkit-border-radius:2px;\">\n<ul>\n<li><a href=\"#s1\"><strong>Check Your Network Signal<\/strong><\/a><\/li>\n<li><a href=\"#s2\"><strong>Verify the Code and Restart Your Device<\/strong><\/a><\/li>\n<li><a href=\"#s3\"><strong>Remove and Reinsert SIM Card<\/strong><\/a><\/li>\n<li><a href=\"#s4\"><strong>Enter Comma at the End of Code<\/strong><\/a><\/li>\n<li><a href=\"#s5\"><strong>Clear Phone App Cache &amp; Data<\/strong><\/a><\/li>\n<li><a href=\"#s6\"><strong>Turn On SMS Over IMS<\/strong><\/a><\/li>\n<li><a href=\"#s7\"><strong>Contact Your Carrier<\/strong><\/a><\/div><\/div><\/li>\n<\/ul>\n<p><strong>For practical fixes, you can watch this video guide:<\/strong><\/p>\n<p><iframe loading=\"lazy\" title=\"7 Quick Fixes for Connection Problem or Invalid MMI Code on Android Phone | Android Data Recovery\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/B77SVIFbYkI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n<h3 id=\"s1\" style=\"text-align: left;\">Solution 1: Check Your Network Signal<\/h3>\n<p style=\"text-align: justify;\">MMI codes don\u2019t work properly if you have a weak network signal on your device. So, the first thing you need to do when encountering such an error is to check the network signal.<\/p>\n<p>If found weak, try again later when the signal improves or move to an area having better reception.<\/p>\n<h3 id=\"s2\" style=\"text-align: left;\">Solution 2: Verify the Code and Restart Your Device<\/h3>\n<p style=\"text-align: justify;\">The wrong entered code combination can trouble you with this error. Therefore, double-check the entered MMI code and ensure that it is in the right format.<\/p>\n<p>Additionally, restart your device once to fix the other phone\u2019s glitches that might be causing the error.<\/p>\n<ul>\n<li><strong>Turn off<\/strong> your phone by pressing the <strong>Power <\/strong>button.<\/li>\n<li>Wait for a few seconds, and then <strong>Power on<\/strong> it back.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8339\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2019\/08\/1-Galaxy-S6-keeps-restarting-marshmallow.jpg\" alt=\"connection or invalid MMI code\" width=\"289\" height=\"195\" srcset=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2019\/08\/1-Galaxy-S6-keeps-restarting-marshmallow.jpg 700w, https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2019\/08\/1-Galaxy-S6-keeps-restarting-marshmallow-300x202.jpg 300w, https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2019\/08\/1-Galaxy-S6-keeps-restarting-marshmallow-306x205.jpg 306w\" sizes=\"auto, (max-width: 289px) 100vw, 289px\" \/><\/p>\n<ul>\n<li>When restarted, try the MMI code and see if the error disappeared.<\/li>\n<\/ul>\n<h3 id=\"s3\" style=\"text-align: left;\">Solution 3: Remove and Reinsert SIM Card<\/h3>\n<p>If the SIM card is not placed properly or is damaged, you may encounter <strong>connection or invalid MMI code <\/strong>error.<\/p>\n<p style=\"text-align: justify;\">You just need to <strong>turn off<\/strong> your phone, and gently <strong>remove<\/strong> the SIM card. Then, wait for a few seconds, and <strong>reinsert<\/strong> it. Now, <strong>turn on<\/strong> your device again and try the MMI code.<\/p>\n<p style=\"text-align: justify;\">Moreover, in case, you are using the dual SIM card, you may encounter this error. In such a case, try disabling one of the SIM cards to <strong>fix invalid MMI code<\/strong>.<\/p>\n<p>Here are the detailed steps to follow:<\/p>\n<ul>\n<li>Go to Android <strong>Settings&gt;&gt;Connections<\/strong>.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20250\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/Untitled-4-copy.png\" alt=\"fix invalid MMI code\" width=\"250\" height=\"294\" \/><\/p>\n<ul>\n<li>Choose the option<strong> SIM Manager<\/strong>.<\/li>\n<li>Now, <strong>toggle off<\/strong> the other SIM and click on <strong>Turn off<\/strong> to confirm.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20252\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/Untitled-6-copy.png\" alt=\"fix invalid MMI code\" width=\"524\" height=\"436\" \/><\/p>\n<h3 id=\"s4\" style=\"text-align: left;\">Solution 4: Enter Comma at the End of Code<\/h3>\n<p style=\"text-align: justify;\">In most cases, it has been recorded that entering a comma at the end of the prefix code can fix the error issue.<\/p>\n<p style=\"text-align: justify;\">Doing this will let your device\u2019s network process the entered code before dialing the actual code. Let\u2019s take an example, suppose you are entering *#0589# code, just add a comma at the end and your code will appear as <strong>*#0589#, <\/strong>and process it.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-20251\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/Untitled-5-copy.png\" alt=\"connection or invalid MMI code\" width=\"202\" height=\"352\" \/><\/p>\n<h3 id=\"s5\" style=\"text-align: left;\">Solution 5: Clear Phone App Cache &amp; Data<\/h3>\n<p style=\"text-align: justify;\">Sometimes, the Phone app cache &amp; data can also hinder the MMI code from running or processing. So, we suggest you clear the app cache once when facing such an error.<\/p>\n<p>Below are the steps to do so:<\/p>\n<ul>\n<li>Visit <strong>Settings<\/strong> on your phone and go to <strong>Apps<\/strong>.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-20253\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/Untitled-7-copy.png\" alt=\"connection or invalid MMI code\" width=\"315\" height=\"298\" \/><\/p>\n<ul>\n<li>Scroll down and select <strong>Phone<\/strong> on the app list.<\/li>\n<li>Now, select the <strong>Storage Usage <\/strong>option.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-20255\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/Untitled-9-copy.png\" alt=\"connection or invalid MMI code\" width=\"273\" height=\"394\" \/><\/p>\n<ul>\n<li>Click the <strong>Clear Data<\/strong> and <strong>Clear Cache <\/strong>buttons.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20254\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/Untitled-8-copy.png\" alt=\"connection or invalid MMI code\" width=\"320\" height=\"396\" \/><\/p>\n<h3 id=\"s6\" style=\"text-align: left;\">Solution 6: Turn on SMS Over IMS<\/h3>\n<p style=\"text-align: justify;\">Turning on SMS over IMS is another way of dealing with<strong> invalid MMI code <\/strong>error. This will allow your phone to send and receive messages over an IP-based network, mitigating compatibility issues.<\/p>\n<p>Follow the step-by-step instructions below:<\/p>\n<ul>\n<li>Open the <strong>Phone<\/strong> app on your device and dial <strong>*#*#4636#*#*<\/strong> to launch service mode.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20249\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/Untitled-3-copy.png\" alt=\"connection or invalid MMI code\" width=\"250\" height=\"436\" \/><\/p>\n<ul>\n<li>Choose the <strong>Phone information<\/strong> option and click on the <strong>Run Ping Test<\/strong>.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-20248\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/Untitled-2-copy.png\" alt=\"connection or invalid MMI code\" width=\"472\" height=\"377\" \/><\/p>\n<ul>\n<li>Now, hit the option <strong>Turn Off Radio &gt;&gt;Turn on SMS Over IMS <\/strong>button.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-20247\" src=\"https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2023\/09\/Untitled-1-copy.png\" alt=\"connection or invalid MMI code\" width=\"451\" height=\"360\" \/><\/p>\n<ul>\n<li><strong>Reboot<\/strong> your phone.<\/li>\n<\/ul>\n<h3 id=\"s7\" style=\"text-align: left;\">Solution 7: Contact Your Carrier<\/h3>\n<p style=\"text-align: justify;\">Lastly, if trying all the above-mentioned fixes won\u2019t resolve the error issue, reach out to your carrier&#8217;s customer support. They can help you better by providing the specific solution to this error or letting you know the correct code.<\/p>\n<h2 style=\"text-align: left;\">One-Click Solution to All Android Problem<\/h2>\n<p style=\"text-align: justify;\">If troubled with random problems on your Android phone, use <a href=\"https:\/\/www.androiddata-recovery.com\/android-repair.php\" target=\"_blank\" rel=\"noopener\"><strong>Android Repair<\/strong><\/a> software. This tool can fix any Android issues in no time with a single click.<\/p>\n<p style=\"text-align: justify;\">Using this software, <strong>phone not charging<\/strong>, <strong>blue\/black screen of death<\/strong>, <strong>problem parsing the package<\/strong>,<strong> rooting or update failed errors<\/strong>, and much more can be fixed.<\/p>\n<p style=\"text-align: justify;\">The software has wider compatibility with 100+ Android phones. Moreover, the software has the capability to fix problems without any data loss.<\/p>\n<p>So, just download it using the below button and follow the <a href=\"https:\/\/www.androiddata-recovery.com\/guide\/android-repair-guide.php\" target=\"_blank\" rel=\"noopener\"><strong>User guide<\/strong><\/a> instructions to get out of any issues on Android.<\/p>\n<br><center><a href='https:\/\/www.androiddata-recovery.com\/blog\/free-download-android-repair' style=\"color: #fff;\">btn_img<img class='size-full wp-image-138' src='https:\/\/www.androiddata-recovery.com\/blog\/wp-content\/uploads\/2020\/05\/download-win.jpg' alt='free-download-android-repair' width='250'><\/a><\/center><br><div class='su-note' style='border-color:#62bbce;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;'><div class='su-note-inner su-u-clearfix su-u-trim' style='background-color:#e7f1fa;border-color:#ffffff;color:#333333;'><p style='text-align: justify;margin:15px 15px;'><strong>Note<\/strong>: <em>It is recommended to download and use the software on your <strong>PC<\/strong> or <strong>laptop<\/strong> only.<\/em><\/p><\/div><\/div><br>\n<h2 style=\"text-align: left;\">Frequently Asked Questions (FAQs)<\/h2>\n        <section class=\"sc_fs_faq sc_card \">\n            <div>\n\t\t\t\t<h2>What is an invalid MMI code error?<\/h2>                <div>\n\t\t\t\t\t                    <p>\n\t\t\t\t\t\tInvalid MMI code error means there is something wrong in the processed error code. Also if the SIM card has not properly inserted or is damaged, you come across this error code.                    <\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n\t\t        <section class=\"sc_fs_faq sc_card \">\n            <div>\n\t\t\t\t<h2>Does all MMI code works on every network and devices?<\/h2>                <div>\n\t\t\t\t\t                    <p>\n\t\t\t\t\t\tNo, all MMI codes do not work on every network or devices. MMI codes can vary for different networks or device models. So, always ensure to enter the correct MMI code as per your device and networks to get the service results.                    <\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n\t\t        <section class=\"sc_fs_faq sc_card \">\n            <div>\n\t\t\t\t<h2>Do I need to get a new SIM card?<\/h2>                <div>\n\t\t\t\t\t                    <p>\n\t\t\t\t\t\tIf none of the solutions fixes the error, the next thing you need to do is to contact your carrier professionals. They will examine the error and provide you with a specific solution. And in case, there is a need to get a new SIM card, it\u2019ll be suggested to you by them.                    <\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n\t\t\n<script type=\"application\/ld+json\">\n    {\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is an invalid MMI code error?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Invalid MMI code error means there is something wrong in the processed error code. Also if the SIM card has not properly inserted or is damaged, you come across this error code.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Does all MMI code works on every network and devices?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"No, all MMI codes do not work on every network or devices. MMI codes can vary for different networks or device models. So, always ensure to enter the correct MMI code as per your device and networks to get the service results.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Do I need to get a new SIM card?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"If none of the solutions fixes the error, the next thing you need to do is to contact your carrier professionals. They will examine the error and provide you with a specific solution. And in case, there is a need to get a new SIM card, it\u2019ll be suggested to you by them.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t    ]\n}\n<\/script>\n\n<h2 style=\"text-align: left;\">Conclusion<\/h2>\n<p style=\"text-align: justify;\">So, this is all about MMI code and <strong>invalid MMI code<\/strong> error. Now, follow the solutions carefully as instructed step-by-step to fix the error and get the desired service result.<\/p>\n<p style=\"text-align: justify;\">For any further queries or doubts, comment to us on <a href=\"https:\/\/twitter.com\/recoverandroid1\" target=\"_blank\" rel=\"noopener\"><strong>Twitter<\/strong><\/a> or <a href=\"https:\/\/www.facebook.com\/restoreandroiddata\/\" target=\"_blank\" rel=\"noopener\"><strong>Facebook<\/strong><\/a>, and also stay connected for recent updates and articles.<\/p>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Man Machine Interface (MMI) code plays an important role in enhancing our mobile experiences. However, at times, users &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"7 Ways to Fix Invalid MMI Code\" class=\"read-more button\" href=\"https:\/\/www.androiddata-recovery.com\/blog\/invalid-mmi-code#more-20246\" aria-label=\"Read more about 7 Ways to Fix Invalid MMI Code\">Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":20256,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[4723,4722],"class_list":["post-20246","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tablet-recovery","tag-connection-or-invalid-mmi-code","tag-fix-invalid-mmi-code","infinite-scroll-item","resize-featured-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>7 Ways to Fix Invalid MMI Code<\/title>\n<meta name=\"description\" content=\"If you 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