{"id":21948,"date":"2026-07-11T00:45:55","date_gmt":"2026-07-10T23:45:55","guid":{"rendered":"https:\/\/innovatenews.site\/index.php\/2026\/07\/11\/6-hidden-samsung-dial-codes-that-unlock-secret-features-on-your-galaxy-phone\/"},"modified":"2026-07-11T00:46:04","modified_gmt":"2026-07-10T23:46:04","slug":"6-hidden-samsung-dial-codes-that-unlock-secret-features-on-your-galaxy-phone","status":"publish","type":"post","link":"https:\/\/innovatenews.site\/index.php\/2026\/07\/11\/6-hidden-samsung-dial-codes-that-unlock-secret-features-on-your-galaxy-phone\/","title":{"rendered":"6 hidden Samsung dial codes that unlock secret features on your Galaxy phone"},"content":{"rendered":"
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The topic 6 hidden Samsung dial codes that unlock secret features on your Galaxy phone<\/strong> is currently the subject of lively discussion \u2014 readers and analysts are keeping a close eye on developments.<\/p>\n

This is taking place in a dynamic environment: companies\u2019 decisions and competitors\u2019 reactions can quickly change the picture.<\/p>\n

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That dialpad on your Samsung Galaxy phone isn\u2019t just for making calls. Type the right combination of numbers, asterisks, and symbols into it, and you\u2019ll unlock menus and features you had no idea existed.<\/p>\n

These are MMI (Man-Machine Interface) codes, and with them, you can pull up your device\u2019s IMEI, hide your caller ID, clear old system logs, test almost every piece of hardware on your phone, and do a lot more.<\/p>\n

Most Galaxy users have no idea any of this exists. After reading this article, you will.<\/p>\n

Things used to be much simpler back in the day. You\u2019d open the dialer, punch in a code, and it just worked. But that\u2019s not quite the case anymore, at least not for all the MMI codes. So before you start entering them, you need to turn off One UI\u2019s Auto Blocker feature. It\u2019s a security feature that blocks sideloading, USB commands, malicious activity, and non-official software updates. As a side effect, it also stops most dial codes from working.<\/p>\n

To turn it off, head to Settings > Security and privacy and turn off Auto Blocker. The good thing is that you don\u2019t have to remember to turn it back on if you\u2019re running One UI 8.5 or later \u2014 your Galaxy phone will automatically re-enable it after 30 minutes.<\/p>\n

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One more thing. If you\u2019re using a carrier-locked Galaxy phone, some codes may throw a \u201cconnection problem\u201d error even with Auto Blocker disabled. That\u2019s the carrier restricting access rather than Samsung \u2014 and sadly, there\u2019s not much you can do about it. For context, I tested all the following codes on an unlocked Galaxy S26, and they worked without any issues.<\/p>\n

The IMEI (International Mobile Equipment Identity) is your phone\u2019s unique 15-digit identifier. If your Samsung phone ever gets lost or stolen, this is the number your carrier will ask for to block the device from connecting to any network. It\u2019s also what you\u2019ll need when filing an insurance claim or reporting the theft to the police. If you have a dual-SIM Galaxy phone, dialing *#06# will show you two different IMEI numbers.<\/p>\n

Of course, this isn\u2019t the only way to find your phone\u2019s IMEI. It\u2019s also printed on the box and buried in the About Phone menu. However, using the dialer is by far the quickest method.<\/p>\n

If you ever need to call someone without revealing your number, dialing *67 before a phone number \u2014 for example, *67-123-456-7890 \u2014 is the way to go. If you\u2019re outside the US, dial *31#, and the caller ID will be hidden for all outgoing calls. This will make your phone number appear as \u201cUnknown\u201d or \u201cPrivate Number\u201d on the recipient\u2019s phone.<\/p>\n

Since this works over your mobile network, whether it\u2019s effective or not, depends on your carrier and region. Some carriers may ignore the suppression request entirely and still show the number anyway.<\/p>\n

Every time you connect your Galaxy phone to a PC, Android picks a USB mode for you. Usually, it\u2019s Charging only, but you can easily change that from the Android system notification that appears when you connect. And if you want that change to stick, you need to unlock the Developer Option menu and set a different default USB mode.<\/p>\n

But if you don\u2019t want to go that route, dialing *#0808# is a good alternative. This opens the USB Settings menu, which shows every USB mode your device supports. By default, it\u2019s set to Charging, but you can switch to MTP (Media Transfer Protocol) if you regularly transfer files to a computer. You\u2019ll see a third option named RNDIS + ACM + DM. RNDIS is for USB tethering, while ACM and DM are mainly for diagnostics and firmware flashing.<\/p>\n

If your Galaxy\u2019s touchscreen feels slightly off, *#2663# is worth trying before going down the troubleshooting rabbit hole. Dialing this opens a firmware update menu where you\u2019ll see the TSP FW UPDATE button. TSP stands for Touch Screen panel, which is essentially the layer that detects and processes touch input.<\/p>\n

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In the same menu, you\u2019ll see a Refresh Wi-Fi Version button. As you might guess from its name, this option can be handy if you\u2019re having Wi-Fi connectivity issues. Tapping this option will reboot your phone, so don\u2019t be surprised when that happens.<\/p>\n

Your Galaxy phone logs all kinds of system activity in the background, including app crashes, system errors, and other diagnostic information. Most of these logs are only useful for troubleshooting and, over time, can consume valuable storage space.<\/p>\n

To reclaim that storage, dial *#9900# and you\u2019ll see the SysDump menu. Tap Delete dumpstat\/logcat, and your phone will remove all the accumulated log files. In my case, it freed up 1.2GB of storage space in the \u201cOther files\u201d category.<\/p>\n

I saved my favorite dialer code for last. Dialing *#0*# opens a hardware diagnostics menu on your Galaxy phone. It\u2019ll show a grid of tests that let you check almost every major hardware component on your phone.<\/p>\n

Most of the tests are pretty self-explanatory. The Speaker option, for instance, plays audio through different speakers on your phone so you can test them individually. The Touch option lets you draw across the screen to detect unresponsive or dead zones. Vibration fires the haptic motor, while the Sensors tab shows live readings from the accelerometer, gyroscope, proximity sensor, and several other sensors.<\/p>\n

A couple of things to note here. Some tests will run automatically when you tap them, while others will require you to interact with them. And to exit any test, you\u2019ll have to use the back gesture multiple times or press the volume keys. Either way, it\u2019s not too difficult to figure out.<\/p>\n

So that\u2019s my list. Of course, there are plenty of other dial codes that work on Galaxy phones, but I wanted to focus on the ones that are genuinely useful.<\/p>\n

Do you know any other dialer codes that you find useful? Tell us about it in the comments below.<\/p>\n

Thank you for being part of our community. Read our Comment Policy before posting.<\/p>\n