You should do a Hard reset Android settings through the engineering mode very carefully, because incorrect settings can lead to incorrect operation of the device. Before you change something, it is recommended to record the original values in order to protect yourself in case something goes wrong, and the new settings will lead to device malfunctions. Therefore, it is important to reset Android settings without losing data.
If you have not recorded the initial settings, you can use the case of resetting the network settings on Android on your device. This option is available on any MediaTek processor. You must have root-permissions to use this option.
To hard reset Android device you need to:
- Install Solid Explorer or any other conductor
- Go to the root folder
- Find the data folder
- Select nvram
- Enter the folder apcfg
- Find aprdcl
And there you will find all the modified engineering mode settings. Sections can be selectively deleted. If you are not satisfied with the way Sound works, for example, delete the Audio folder. Then be sure to restart the device. After you restart the device, the system will automatically create the deleted files with standard options, which are incorporated in the processor. If you want to hard reset Android phone to factory settings completely, delete the folder aprdcl. After you restart the device, the folder will recover, and the phone will have factory values of the engineering mode.
I hope you learned how to access the Engineering mode and hard reset Android to factory settings via engineering mode. Feel free to ask any questions that you have about the engineering mode in the comments below. We will be glad to help you.