Xiaomi Redmi 6 MIUI-based smartphone keeps a history of all incoming, outgoing and missed calls β and sometimes this information requires irretrievable deletion. The reasons can range from simple memory cleansing to having to hide confidential contacts before selling the device. However, not all users know that standard deletion through the Phone app does not always erase data permanently.
In this article, we will discuss 5 working ways to remove calls on Redmi 6, from obvious to obscure, including cleaning through Engineer Mode and resetting to factory settings. Particular attention will be paid to hidden MIUI logs that continue to store information even after visual deletion, and you will learn how to check if data is erased, and what to do if the call history is restored after rebooting.
1. Standard removal through the application "Phone"
The easiest way is to use the built-in MIUI tools, which is good if you need to quickly clear your history without going into the system settings, but remember that this only removes data from the application interface, but can remain in system logs.
Instructions:
- π± Open the Phone app** (the phone icon on the home screen).
- π Go to the Journal tab (or History in some firmware versions).
- βοΈ Click on three dots in the upper right corner β select Delete.
- ποΈ Check all calls or select individual calls. β confirm removal.
β οΈ Note: If you have Mi Account sync enabled, your call history may be saved to the cloud. To delete it, go to Settings. β Xiaomi account β Mi Cloud β Synchronization β Call history and disable the option.
2. Remove through the "Settings" of the system
MIUI allows you to clean your application data centrally, and it's more reliable than the previous one, because it erases cache and temporary files associated with your call history, and it's suitable for users who want to delete not only your visible history, but also your service information.
Step-by-step:
- Open the Settings β Applications.
- In the search bar, type βPhoneβ** or find it in the list.
- Select Warehouse. β Clear the data.
- Confirm the action (this will delete the entire call history and app settings).
π What's being deleted: With your call history, you reset your call volume, your favorite contacts in the quick access, and other personal data from the Phone app, and if you need to save some of your settings, this method won't work.
Make a backup of important contacts|Check sync with Mi Cloud|Remember the volume and vibration settings|Make sure that SIM-card not blocked-->
3. factory reset (full cleaning)
If you plan to sell or transfer Redmi 6 to another person, a complete reset is the only way to guarantee that you will delete all data, including call history, messages and files.This method erases all the contents of internal memory, so use it only as a last resort.
How to perform the reset:
- Go to Settings β About the phone β Reset settings.
- Select Erase All Data (may be called Factory Resetting).
- Enter the password from your Mi Account if it is tied.
- Confirm the action and wait for the reboot (it will take 5-10 minutes).
| What's removed | What's left? |
|---|---|
| Call and message history | Files on SD-map (if it is installed) |
| Installed applications and their data | Firmware updates (when reconfigured) |
| Settings Wi-Fi, Bluetooth, accounts | Data in the cloud (unless synchronization is disabled) |
| Photos, videos and music in the internal memory | Hidden system logs (removed only when formatted) |
β οΈ Note: Once reset, the phone will require you to enter the data of the Xiaomi account that was previously tied. If you forgot the password, it will be difficult to unlock the device - you will need to contact Mi support with proof of ownership.
4. Remove via Engineer Mode (Hidden Mode)
For advanced users who want to delete even system call logs, Engineer Mode is a good method, which requires caution, since incorrect actions can disrupt the phone.
Instructions:
- Open the Phone app and enter the code: ##4636###
π§ Technical detail: Engineer Mode also allows you to reset network statistics, which is useful if you want to delete information about cell tower connections.
What happens if you accidentally change the settings in Engineer Mode?
5. Use of third-party applications
If built-in methods donβt help (e.g., call history is restored after a reboot), third-party utilities are available.We only recommend proven apps from Google Play, as some βcleanersβ may contain malicious code.
Top.-3 applications to clean up call history:
- π§Ή CCleaner β deletes cache and temporary files, including call logs.
- ποΈ Call Logs Cleaner β a specialized application for history management.
- π SD Maid β Deep Cleanup of System Files (requires root rights for full access).
β οΈ Attention: Apps like SD Maid with CorpseFinder can delete files that are MIUI It's marked as "junk," but it's actually used to run the system. β Additionally. β Backup and reset.
π‘
If you use the application to clean up your history, disable autosynchronization from Mi Cloud in advance, otherwise deleted data can be restored the next time you connect to the Internet.
6.Appraisal: Is the story really deleted?
Even after cleaning, the call history may remain in the system files, and to make sure that the data is permanently erased, follow the following steps:
Methods of verification:
- π Use a file manager (such as Mi File Manager) and check folders: /data/data/com.android.providers.contacts/databases/ /data/com.android.providers.contacts/ (Root rights are required).
- π± Install the DiskDigger app β it scans memory for the remnants of deleted files.
- π» Connect your phone to your PC and use the utility ADB For log checks: adb shell dumpsys telecom --call-log
π Key takeaway: If you sell a phone, the only reliable way is to completely reset with the formatting of internal memory, and even then, it is recommended to fill the memory with junk data (for example, record a large video file) to overwrite the possible remnants of information.
π‘
On MIUI phones, the call history can be duplicated in the Mi Cloud and local databases, and complete deletion requires cleaning both.