{"id":532055,"date":"2026-04-15T11:13:54","date_gmt":"2026-04-15T11:13:54","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/532055\/"},"modified":"2026-04-15T11:13:54","modified_gmt":"2026-04-15T11:13:54","slug":"7-secret-android-codes-i-didnt-know-existed-until-i-went-looking","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/532055\/","title":{"rendered":"7 secret Android codes I didn’t know existed until I went looking"},"content":{"rendered":"

Your Android phone’s dialer isn’t just for making calls; I found out that it’s more of a backdoor into menus that your phone maker doesn’t advertise.<\/p>\n

These are generally hidden behind strings of nunmbers and symbols, letting you unlock diagnostic tools, engineering menues, and even device information that most Android users won’t ever see. Some are harmless and interesting, while some can be genuinely useful for troubleshooting. And at least olne can wipe your phone without asking for confirmation. Here’s what I found when I went looking for some secret Android codes.<\/p>\n

Just a quick mention here: not all codes work on every device or Android version. I’ve tested these on my Google Pixel 9 and\/or my OnePlus Open, so they work here (and I’ll note on which). Also, you want to make sure you back up before experimenting with these codes, just in case. <\/p>\n

The fastest way to find your IMEI<\/p>\n

No need to dig through Settings<\/p>\n

\"IMEI<\/p>\n

An IMEI is a unique 15-digit identifier that identifies your specific device, and it’s the number your carrier needs to blacklist your phone if it’s stolen. Screenshot this and keep it somewhere safe before you even need it. <\/p>\n

Open your Phone app, dial *#06# to get the IMEI menu and you’re ready to go. It works on both of my Android phones, and it’s a great way to prepare yourself if you lose your handset. <\/p>\n

Sure, you can use the Settings app to find your IMEI, but this is just way faster. On a Pixel, go to Settings > About phone and then scroll down to see your IMEI information.<\/p>\n

The hidden testing lab<\/p>\n

Battery health, network controls, and app stats \u2014 all in one place<\/p>\n

Dialing *#*#4636#*#* will get you into a hidden Testing menu with tabs for Phone Information (V2), Usage statistics, Wi-Fi information, and Phone information (for a second SIM slot if you have one). Tap into each one and you’ll get a wealth of information. <\/p>\n

What’s odd about this whole menu is that it looks like it’s in Settings, but if you try and find it, you won’t. The only way I could get into it on my Pixel was with the dialer code. <\/p>\n

The Phone Information (V2) on my phone has several tabs available, too, like Device Details, Data & Network, Satellite, and IMS. Device details basically shows you your designation on the network: IMEI, phone number, carrier, SIM status, etc. Data & Network tells you what your network type is (LTE, 5G, etc.), current network, and has room for signal strength and cell tower measurements. The Satellite tab surfaces info related to satellite connectivity, which, for me, is non-applicable. IMS stands for IP Multimedia Subsystem, which covers things like Voice over Wi-Fi. <\/p>\n

The diagnostic app Google built into every Pixel<\/p>\n

A full hardware testing suite<\/p>\n

\"Main<\/p>\n

Google phones ship with a dedicated diagnostics app that most of us never find because it’s only accessible via the dialer code *#*#7287#*#*. I’ve covered this app in much more detail<\/a> here, but it basically gives you structured access to tests for your display, speakers, microphone, cameras, sensors, buttons, and connectivity. Every test has a little bit of instruction and a walkthrough to let you know if the component passes or fails. You can use this menu before you spend too much time on the phone with Google support. A quick sensor test can tell you whether it’s hardware or software, which can be pretty useful. <\/p>\n

The calendar diagnostic screen that explains why your events won’t sync<\/p>\n

A useful tool hiding behind a forgettable code<\/p>\n

\"Calendar<\/p>\n

This code \u2014*#*#225#*#* \u2014 pulls up a Calendar information screen showing sync status, account associations, and diagnostic data tied to your Google Calendar integration. It’s not something I even thought about checking, which is why it’s useful if your calendar events stop appearing across devices, or if an event you created on your laptop doesn’t show up on your phone. <\/p>\n

If Google Calendar sync has been behaving oddly, this screen can tell you if the problem is on the device site, the account side, or maybe both. It’s a faster first step than uninstalling and reinstalling your calendar app, for sure. <\/p>\n

The push notification diagnostic I really didn’t know about<\/p>\n

Firebase Cloud Messaging<\/p>\n

\"FCM<\/p>\n

If you dial *#*#426#*#* with your phone dialer, you’ll get the Firebase Cloud Messaging diagnostics page, which shows whether your push notifications system is working or not. This can help you decide whether your push notifications aren’t working due to something in software or configuration, or a layer lower. If FCM isn’t running correctly, it’s not something you can fix<\/a> with an app reinstall or phone restart. This quick check can be the difference between making a lot of useless fixes and getting to the source of the issue. <\/p>\n

Honestly, I had no clue about how push notifications work on Android, so finding this code was kind of a revelation. <\/p>\n

OnePlus’s engineering mode and what you’ll actually find inside<\/p>\n

More technical than useful, but worth knowing about<\/p>\n

\"Commercial<\/p>\n

OnePlus devices like my Open ship with an engineering mode accessible via the code *#888# in the dialer app. When I dial that code, I get a QR code for my PCB number, a hardware revision identifier for the phone’s motherboard. That could help a repair tech know what parts are needed for this specific handset, or when diagnosing issues that might rise from a specific motherboard that could have been replaced mid-cycle. It’s really the kind of detail that you’d never find if you’re just rolling through the Settings app. I know I’ve never come across it. <\/p>\n

The factory reset code that came with a warning I had to test<\/p>\n

It’s supposed to wipe your phone, but mine stayed the same<\/p>\n

\"The<\/p>\n

You know if there’s a sign that says “do not press this button,” many of us will develop a strong urge to press it. That’s what happened when I found the reset code *#*#7780#*#* for my Google Pixel 9. I just had to try it. So I did. <\/p>\n

Don’t assume this will be your experience. If you must use this code, make sure your phone is backed up. <\/p>\n

Once I dialed that code in, my Pixel restarted, with a message that said, Factory Resetting phone, and then restarted. I got an error the first time, but then I held the power button down and it rebooted, bringing up a Google log and, eventually, just loading my phone as per usual. <\/p>\n

That seemed odd, so I tried it again (I’m a glutton for punishment). This time, the code did nothing, even with several tries. Your mileage may vary, so give it a try if you have a good backup of your Pixel. Or, better yet, try it with a phone you don’t use every day. <\/p>\n

Android was built for engineers, and some of that is still showing<\/p>\n

It’s not that any of these specific codes are something you’ll need to mess with, but it’s what they reveal overall. Underneath the polished interface of your Android phone is a layer built for technicians, factory workers, and developers. There’s a full layer of test suites, raw data feeds, and diagnostic tools that are on your phone and usually go completely unused by almost all of us who own one. Still, it’s fun to see what’s under the hood when you go looking. <\/p>\n

\"A<\/p>\n

\t\t\t\t\t\tSoC \t\t\t\t\t<\/p>\n

\t\t\t\t\t\t\t\t\t\t\tGoogle Tensor G4<\/p>\n

\t\t\t\t\t\tDisplay \t\t\t\t\t<\/p>\n

\t\t\t\t\t\t\t\t\t\t\t6.3-inch Actua pOLED display, 1080 x 2424 resolution, 60-120Hz, 3000 nits peak brightness<\/p>\n

\t\t\t\t\t\tRAM \t\t\t\t\t<\/p>\n

\t\t\t\t\t\t\t\t\t\t\t8GB<\/p>\n

\t\t\t\t\t\tStorage \t\t\t\t\t<\/p>\n

\t\t\t\t\t\t\t\t\t\t\t128GB, 256GB<\/p>\n

\t\t\t\t\t\tBattery \t\t\t\t\t<\/p>\n

\t\t\t\t\t\t\t\t\t\t\t5,100 mAh<\/p>\n

\t\t\t\t\t\tPorts \t\t\t\t\t<\/p>\n

\t\t\t\t\t\t\t\t\t\t\tUSB-C<\/p>\n

The Google Pixel 10a is a budget-oriented smartphone with a flat back and long battery life. It’s powered by the same Tensor G4 chip as its predecessor, and many key specs are identical to the Pixel 9a. However, you do get a brighter screen, better modem, new software features, and Android 16 with seven years of software support.<\/p>\n","protected":false},"excerpt":{"rendered":"Your Android phone’s dialer isn’t just for making calls; I found out that it’s more of a backdoor…\n","protected":false},"author":2,"featured_media":532056,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[2306,86,56,54,55],"class_list":{"0":"post-532055","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-mobile","8":"tag-mobile","9":"tag-technology","10":"tag-uk","11":"tag-united-kingdom","12":"tag-unitedkingdom"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/532055","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=532055"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/532055\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/532056"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=532055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=532055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=532055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}