Tap About phone, and then tap Software information. To enable Developer mode, rapidly tap Build number seven times in a row. A popup message will appear when you are close to enabling the mode. If you have a lock screen set, you’ll be asked to enter your security credentials. The Developer options will be activated; you can now access it at Explore Samsung Galaxy's Secret Features! in Tech Talk 06-09-2023; Here's some One UI hidden menus you never knew existed! (Part 3) in Tech Talk 04-30-2023; WHAT are you Hiding Samsung🙂 in Tech Talk 05-10-2022; Innovationlab #42 in Tech Talk 03-26-2022 Well, if the OEM unlock option has been disabled somehow on your Galaxy device, then you can try this small trick to get it back. Open the Settings app. Tap on General Management → Date and time. Use the toggle button to disable Automatic date and time. Set date option will be enabled now. Tap on it, and set the date to about 10-20 days earlier. All you need do is unlock bootloader via pressing 3 buttons at once, flash TWRP using Odin and then flash any ROM you want. The custom ROM community for Samsung devices is massive on XDA but 10 times larger on Telegram. I am running CrDroid on Android 13 on a Samsung device that last received android 11 from Samsung. *#7353# - Test Menu *#74123465* - Camera Firmware Standard ANDROID Samsung secret codes for Samsung Galaxy S9 Plus *#*#4636#*#* - Hidden Android Testing menu Samsung Galaxy S9 Plus. 4 menus will appear on the phone screen: (Phone information, Battery information, Battery history, Usage statistics) All samsung phones, including the newest samsung galaxy note 20 that's coming soon, galaxy note 10, s10, s9, note 9 and many more have a secret menu you can Select the enable DM Mode on the phone. Connect phone to PC. Open Hidden Menu Tool executable. Make sure the drop down option in Hidden Menu Tool is set to enable. Click start. Wait for it to go from REQ to PASS next to your connected device port. Now you can use codes such as #0 # and *#0011#. Uq3yue. • 5 yr. ago. Listed below are the necessary steps that you need to perform to make sure that photos and videos that you want to stay hidden remain hidden. First you need to setup the Secure Folder. Tap on Apps hMr4.