Sony Xperia Z3 Engineering Menu Codes
Often, in Chinese (and certainly not only Chinese) Android phones, the engineering menu contains far from optimal volume settings for the speaker, headset (headphone) and microphone, and we will consider their correction in this article.
How to get into the engineering menu of an Android phone
To get into the engineering menu, open the dial and enter a special code: ## 3646633 ##
Also, on some versions of Android, the command may work # 15963 # and ## 4636 ##
I’ll give you the codes I know for opening the engineering menu on different phones and tablets:
## 54298 ## or ## 3646633 ##. smartphones based on the MTK processor
## 8255 ## or ## 4636 ## –Samsung smartphones
## 3424 ## or ## 4636 ## or ## 8255 ##. HTC smartphones
## 7378423 ##. Sony smartphones
## 3646633 ##. smartphones TEXET, Fly, Alcatel,
## 3338613 ## or ## 13411 ##. smartphones Fly, Alcatel, Philips
## 2846579 ## or ## 2846579159 ##. Huawei smartphones
## 2237332846633 ##. devices from Acer
Immediately after entering, the command should disappear and the engineering menu should open. But on some devices you still need to press the “Call” key
A list of sections of the telephone engineering menu appears.
Just in case, take a notebook and pen and note out the settings that were set on your phone before your intervention. You never know, anything happens.
On my phone (based on MTK processor), to get to the engineering menu I had to install a free utility (program) from Google Play “Mobileuncle MTK Tools“, Which opens access to the engineering menu (that is, it works similar to the set of magic combinations ## 3646633 ##).
I am sure that in the same place you will find free applications for other phones.
Volume settings for the speaker, headset (headphone) and microphone of the phone through the engineering menu
For clarity, we briefly analyze the volume level setting of the device:
We go into the program or type in a magic combination to enter the engineering menu. Next, in the menu that opens, select the “Engineer mode”
A section will open in which you can choose the engineering menu of the Android system (skip it), and the engineering menu of the phone itself.
We need the engineering menu of the phone, so select the “Engineer Mode (MTK)” section. This item is circled in red with a marker.
A very long menu will open, through which you can get to almost any phone settings. But it’s not enough to get to them, you need to know how to manage them.
Therefore, do not change what you have no idea.
At the worst, write down the parameters that were before your intervention, and then return them back. We continue!
Since we are interested in adjusting the sound level, select the “Audio” item, I circled it with a red marker.
And magic! The menu of speaker and microphone parameter settings that interests us opens.
And actually, why did we climb into this menu? Does something not work out of curiosity? Okay, we continue to understand!
Here it is worthwhile to linger and figure out what all these menu items mean.
Normal mode (settings section in normal or normal mode). this mode is active when nothing is connected to the smartphone;
Headset mode (headset mode). this mode is activated after connecting headphones or external speakers;
LoudSpeaker Mode (loudspeaker mode). it is activated when nothing is connected to the phone or tablet, and you turn on the speakerphone while talking on the phone;
Headset_LoudSpeaker Mode (loudspeaker mode with a headset connected). this mode is activated if you connect headphones or external speakers to your phone or tablet, and you turn on the speakerphone while talking on the phone;
Speech enhancement (telephone talk mode). this mode is activated in the normal telephone talk mode, and is not connected to anything (headset, external speakers) and the speakerphone is not turned on.
Debug Info. it’s not clear why. information on information backup or debugging;
Speech logger. I didn’t figure it out to the end, most likely, logging during negotiations or recording a conversation. If you tick “Enable speech log”, then after the phone call is completed, the corresponding files are created in the root directory of the memory card. Their name and structure takes the following form: Day of the week_month_year_ hour_minute_second (for example, Friday_Jul_2016time17_12_53.pcm).
What these files are for and how they can come in handy to us is unclear. The / sdcard / VOIP_DebugInfo directory (which is the location for storing files with backup information) is not automatically created; if you create it manually, it will remain empty after the conversation.
Audio logger. serves to record sound that supports quick search, playback and its storage.
When entering any of the modes, various volume settings (Type) will become available to you. Here is a list of the basic settings you need to know:
- Sip. settings for internet calls;
- Mic. microphone sensitivity settings;
- Sph. spoken speaker settings (the one that we put on the ears);
- Sph2. settings for the second spoken speaker (I don’t have it in my phone);
- Sid. skip, when changing these parameters during negotiations on your smartphone or tablet you can hear yourself instead of the interlocutor;
- Media. setting the volume level of multimedia;
- Ring. setting the volume level of the incoming call;
- FMR. FM radio volume settings.
Below the item for selecting settings, a list of volume levels is available (Level) (see the figure).
There are usually 7 such levels, from level 0 to level 6. Each such level corresponds to one “click” on the volume rocker on your smartphone or tablet.
Thus, level 0 is the quietest level, and level 6 is the loudest signal level. Please note that each level can be assigned its own values, which are in the cell Value is 0
255. They should not go beyond the range from 0 to 255 (the lower the value, the quieter the volume).
To change this parameter, you need to erase the old values in the cell and write the new one, and then press the “Set” button (the one next to the cell) to assign it.
I highly recommend the use of maximum values! Be careful, the maximum level can ruin the speaker, but it will begin to wheeze and distort the sound.
In conclusion, the section below shows the Max Vol. 0
255 (on my smartphone, e.g. Max Vol. 0
255, it all depends on the manufacturer). In this paragraph, the maximum value of the volume level is set, it is one for all level.
Dear friends. The name of the items may vary on different models. This is the MTK platform, so be prepared to strain your brain and look for a match in your menu. I have a Jiayu G3 phone.
My changes were applied immediately, but maybe someone will need to restart the phone for them to take effect.
Although, it seems, you should not break anything and if you don’t like the changes, you can always enter the old value.
ALL CHANGES YOU MAKE AT YOUR SOLE RISK. Do not forget to include a thought