Because women have great privacy and many of them maintain personal and family photos and videos, and also with words of the secrets of etail and social media, it is necessary to ensure that all data are deleted in case of wanting to sell a smartphone.
Communications Port.De "German stressed the need to delete personal data from a smartphone or tablet before selling it or gifting it to others.
Initially, the SIM card and the memory card are removed, and all user accounts are deleted like a Google account.
And since the user may not be unable to remove data from the memory of the phone in a way that depends on it, German experts advise to encrypt the memory so that it is difficult for the later user to the smartphone access to the stored data.
The encryption function in the Google Android system can be found starting from the fourth version and above in the settings list under the "safety" item.
As for the new versions of the Android system, the encryption function is effective by default, and it does not require anything.
In the next step, the phone must be returned to the factory settings, and this option is found in Android devices under the item of "backup and re -setting" or "re -setting options".
Regarding the mobile devices equipped with Apple (iOS ", this function is found in the settings list under the" General "and" re -control "item..
Below is a detailed explanation of all steps:
1- Remove the memory card
Restore data from the memory card relatively easier than recovering it from the mobile phone because of the ability to connect the memory card to the computer and use much stronger programs than used in the case of the mobile phone, so if the data is sensitive and you do not return you need it, it is preferable to remove or destroy the memory card from the phone.
2- Data encryption
The purpose of making the data is incomprehensible and unused even if someone succeeds in recovering it.
To increase safety, the data can be encrypted, for example, if you are using an Android device to work, or if you have private or secret information on your device, in this case the best that can be done is to encrypt your phone completely before setting it on the factory settings.In this way, if someone can recover a deleted file from the phone, the data will remain coded and useless for him.
The encryption process you can do without applications by visiting:
إعدادات Settings > الأمان Security > تشفير encryption
It should be noted that the encryption of the phone requires some time according to the size and space of the files that you encrypt.
Every time you will press the power button, you will be asked to enter a password or PIN number that you insert.
3- Restore factory settings
The purpose of this step: Delete all data from the internal memory.
The phone reset on the factory settings or the reset of the factory data - and the choice of setting the standard data scan is the first step that may not be sufficient if the person who tries to recover the files is professional and your data is encrypted.
4- Fill the memory with random files
The purpose of this step: remove any trace of the old files by writing new files above it.
You can then fill your cell phone memory with random or unimportant data to override anything important that may be stuck in your phone memory.
For example, video shooting can be played with a camera mode facing the table until the memory is completely filled or a adhesive position on the camera while it works until the memory is completely filled.You can then delete the video and reset the phone again or go to the last step directly.
5- Using one of the data erasing applications permanently
The purpose of this step: remove the empty video and any audio recording during the recording of the empty video during the previous step or as an alternative step for the previous step.
There are some applications on the Play Store specifically designed to make data on your Android device that are not recovered and you will be able to determine and choose the best of these applications by searching for 'File Shredder' or 'Data Wipe' on the Google Play Store such as:
Shreddit - Data Eraser
Shredroid
Secure Delete
Secure Wipe
Source: Agencies
