Many devices running Android OS are additionally equipped with a special environment. the engineering menu. With it, the user has the opportunity to test all the sensors and modules of the mobile device, as well as adjust certain parameters of the gadget for its more comfortable use. On Samsung phones, Engineering Mode is hidden by default in the system. And in different models, the entrance to it is performed in different ways. And the functionality of this area may also vary. Let’s look at how to enter the engineering menu on the Samsung Galaxy A5, Galaxy S6, J3 and other smartphones from the Galaxy line.
Where to find the engineering menu on the Samsung Galaxy
The main purpose of Engineering Mode is to fully test mobile devices at the final stage of their production. The specified environment was originally developed for debuggers of smartphones and tablets, but today anyone can use it. The main thing is to know how to open the technical mode on Galaxy.
You can enter the engineering menu using a special combination (USSD-code), which is set in the dial pad. over, in different phone models, these commands may differ:
- in Samsung J7 and J1, the combination ## 0011 # is relevant;
- for Samsung Galaxy A5, Galaxy S5, Galaxy S6 the set ## 8255 ## or ## 197328640 ## is suitable;
- Samsung Galaxy A3 uses the code ## 9646633 ##;
- for Samsung Galaxy S3. ## 0 ##;
- Samsung Galaxy S7 Edge. ## 8255 ## or ## 4636 ##.
On other devices from the Galaxy line, you can use the service combinations ## 4636 ##, ## 8255 ## or ## 3646633 ##.
If you cannot open the engineering menu using the above commands, you can resort to one of the programs developed specifically for this purpose (EngineerMode, Mobileuncle Tools, Shortcut Master, etc.). To start the technical mode, just install and run one of the utilities. After that, you will automatically enter Engineering Mode.
All applications for opening the engineering menu work only with MTK processors (MT6573, MT6577, MT6589, etc.) and with some Exyon chips. For phones equipped with Qualcomm CPUs (for example, Samsung Galaxy A5), such software will be useless.
The main features of the engineering menu on the Samsung Galaxy
Having figured out how to enter the engineering menu on Samsung, consider its main features. The full-fledged Engineering Mode for MTK chips is equipped with a large number of tools with which you can make a complete diagnosis and fine-tune Samsung in many ways.
However, many smartphones have a stripped down version of the technical mode, which somewhat reduces its functionality. And in mobile devices based on the Qualcomm processor, through the engineering menu, you can only see information about some modules and perform small tests of the main elements of the phone (display, modem, SIM-cards and batteries).
On the Samsung Galaxy A5 and Galaxy S6, the main sections of the engineering menu are:
- Telephony (Telephony);
- Wireless interfaces (Connectivity);
- Testing mode (Hardware Testing).
In the Telephony tab, the user has the ability to:
- activate / deactivate the answering machine for incoming calls;
- mark frequencies for GSM telephone communication;
- choose communication standards on which Galaxy A5 will work (2G, 3G, LTE or their combinations);
- configure access to the Internet, etc.
The Connectivity section is designed to diagnose and configure wireless Wi-Fi, Bluetooth, and FM modules. Changing anything here is not recommended, as this can lead to the failure of the smartphone.
The most popular engineering menu tab is Hardware Testing. This is where you can test the performance of the processor, battery, speakers, camera, display and GPS module. This area allows you to make a complete diagnosis of Samsung during its purchase and identify possible product malfunctions.
An example of using the engineering menu
One of the most effective tools available in Engineering Mode is BandMode. Here you can disable unused GSM frequencies, which will reduce the load on the battery and increase its autonomy. On the Galaxy S6, this is done as follows:
- Enter the engineering menu and open the Telephony section.
- Select the BandMode tab.
- The mobile devices supplied to the European market have two pairs of frequencies that they will scan. 900/1800 and 850/1900 MHz. However, only the first pair is used. Therefore, leave the checkmarks at frequencies of 900 and 1800 MHz, and remove from the remaining values.
- Confirm your changes by pressing SET.