Oppo A75s comes with a 64GB internal memory with 6GB Ram. It is powered by Android 7.1 (Nougat), it has powerful Octa-core 4×2.5GHz ARM Cortex-A53+4×1.6GHz ARM Cortex-A53 CPU and Qualcomm Snapdragon 835 MSM8998 chipset. The smartphone comes with 6.0 inches, 92.9 cm2 (~80.9% screen-to-body ratio) with 1080 x 2160 pixels, 18:9 ratio (~402 ppi density) resolution, and Non-removable Li-Ion 3200 mAh battery.
On this page, you’ll get a lot of different codes to unlock features on your phone screen. You can use these codes on your Oppo A75s to unlock a lot of hidden features, and access different service menus, knowledgeable information, and other amazing things.
These secret codes will work on all cell phones or any Android device. Kindly don’t use any code if you don’t know about it. First, you should read the instruction about codes then you can use on your cell phone.
Secret Codes for your Oppo A75s
For Bluetooth testing, for Tecno devices:
*#*#232331#*#*
Field testing for Tecno phones
*#*#7262626#*#*
PDA Feature and Phone firmware info for Tecno devices
*#*#1234#*#*
To find FTA Hardware version for Tecno handsets
*#*#2222#*#*
Display Build time and change list number only for Tecno devices
*#*#44336#*#*
To enable voice dialing logging mode on your Tecno handsets
*#*#8351#*#*
To disable voice dialing logging mode on Tecno devices
*#*#8350#*#*
Enter into Engineering Mode: *#110*01#
Enter into Factory Mode: *#987#
Restore Factory Settings: *#987*99#
Check Software Version: *#900# OR *#800#
Default User Codes: 1122, 3344, 1234, 5678
Change LCD Contrast: *#369#
To Enable COM Port: *#110*01# ->>> Device ->>> Set UART ->>> PS Config ->>> UART1/115200
All Cell Phones Hidden Secret Codes
| Function: | Codes |
| Dial mailbox number (mailbox number must be specified in the settings) | press 1 for longer than one second |
| Activate/deactivate silent profile | press # for longer than one seconds |
| Display the IMEI (International Mobile Equipment Identity) | *#06# |
| Dial with own number being displayed (replace [number] with the number to dial) | *31#[number][dial] |
| Show status call locks | *#33*[dial] |
| Turn on tall waiting | *43#[dial] |
| Turn off call waiting | #43#[dial] |
| Show status of call waiting | *#43#[dial] |
| Request own number (often does not work) | *135#[dia] |
| Change Pin (do not enter [ and ]) | **04*[old Pin]*[new Pin]*[new Pin]# |
| Unlock Pin (do not enter [ and ]) | **05*[PUK]*[neue Pin]*[neue Pin]# |
| Change Pin2 (do not enter [ and ]) | **042*[old Pin2]*[new Pin2]*[new Pin2]# |
| Unlock Pin2 (do not enter [ and ]) | **052*[PUK]*[new Pin2]*[new Pin2]# |
| Display Software Version (Nokia and Samsung devices) | *#0000# |
Secret Codes to Unlock Hidden Features
| Function: | Codes |
| To check Camera information in Tecno handsets | *#*#34971539#*#* |
| To Power off with a single tap of the power button | *#*#7594#*#* |
| You may backup your media files in Tecno devices | *#*#273283*255*663282*#*#* |
| For service activity in Tecno handsets | *#*#197328640#*#* |
| Display Bluetooth device address | *#*#232337#*# |
| For Google Talk service monitoring | *#*#8255#*#* |
| Wireless Lan Tests in Tecno devices | *#*#232339#*#* OR *#*#526#*#* |
| To find Mac-address of Wi-Fi in Tecno handsets | *#*#232338#*#* |
| For GPS testing in Tecno devices | *#*#1472365#*#* |
| To check LCD for Oppo A75s | *#*#0*#*#* |
| Different type of GPS testing for Tecno handsets | *#*#1575#*#* |
| Packet Loopback testing | *#*#0283#*#* |
| PDA, Phone, Hardware, RF Call Date firmware info | *#*#4986*2650468#*#* |
| To find FTA Software version | *#*#1111#*#* |
| To test Audio in Oppo A75s Android device | *#*#0673#*#* OR *#*#0289#*#* |
| Vibration and Backlight testing in Tecno handsets | *#*#0842#*#* |
| To test proximity sensor use this code in Oppo A75s phone | *#*#0588#*#* |
| To check touch-screen version in Tecno devices | *#*#2663#*#* |
| How to check touch-screen in Oppo A75s | *#*#2664#*#* |
| To check ram version in Tecno handsets | *#*#3264#*#* |
Secret Codes for Oppo A75s or any Android Device
*#*#4636#*#*
To use the below code, you will get your device’s IMEI number on your device screen.
*#06#
Caution: Please Don’t use this code unless you want to reset your device. It may cause deletes app data and apps. I would strongly recommend you to create a backup your device before using this secret code.
*#*#7780#*#*
Enter Service Menu
You can use the below code to enter your Tecno’s Service Menu.
*#000000#
Caution: The following code will completely wipe out your mobile data also it re-installs stock firmware
*2767*3855#
Master Reset (Sim in the device)
Now you can use the following code, to the master reset your Tecno device when your sim card is inserted.
###337*07#
You can change your phone Language using these codes:
| Function: | Codes |
| Set Default Language | *#0000# + Send |
| Set Language to Russian | *#0007# + Send |
| Set Language to French | *#0033# + Send |
| Set Language to Spanish | *#0034# + Send |
| Set Language to Italian | *#0039# + Send |
| Set Language to English | *#0044# + Send |
| Set Language to German | *#0049# + Send |
| Set Language to Thai | *#0066# + Send |
| Set Language to Vietnamese | *#0084# + Send |
| Set Language to Arabic | *#0966# + Send |
Full Factory Reset *#002#
Phone Test – *#87# or *#88#
Shows IMEI of Mobile Phone *#06#
Use this code to check Software/Hardware Information *#8375# or *#8376#
Engineer Mode (If you change hidden settings, do it wisely) – *#3641#
Firmware USB Update Mode (First of all please check firmware, Don’t install wrong firmware) – *#3696#
You can now go ahead and root your device, and install various MODs, custom ROMs or modify the firmware on any device.
We hope that you will get a lot of Amazing codes to unlock Features of your Oppo A75s via dialing Secret Codes. Before dial any secret code you must read all of the above Secret Codes carefully. How to use those codes on your Oppo A75s.
Now you can go ahead and use different codes on your device.
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- Download and Install TWRP recovery for Oppo A75s
- Download SP Flash Tool For Your Oppo A75s
NOTE: I would strongly recommend you to create a backup your device. Before using any secret code on your Oppo A75s. If anything goes wrong the author or getdroidpro.com is not responsible for it.