10
votes
How do I delete a single calendar in Android (not just hide it)?
Since it seems there is no easy free way to do this, I created my own =)
Here is the app: Calendar Toolbox
If someone needs to create, delete, or update a local calendar, it will do it.
9
votes
Is there a way to delete the picture on hangouts so they cant see it? retrieve picture
Share and delete your photos from Hangouts messages and Google Voice MMS:
You can delete photos that you sent through a Hangouts message or
through a Google Voice multimedia message in Hangouts. ...
9
votes
Accepted
How to make a complete factory reset, without anyone being able to retrieve my data?
HOW DELETED DATA IS RECOVERED?
Data (un)deletion strongly depends on how a storage media (HDD, SSD, eMMC etc.), filesystem (NTFS, FAT32, ext4 etc.) and OS save and delete files.
File carving / ...
6
votes
Can I delete an app I got on sale?
From play store support:
You can use apps you bought on Google Play on any Android device
without paying again. However, each device must have the same Google
Account on it.
You can:
...
5
votes
Accepted
How to clear a Folder (e.g. Downloads) automatically on a regular/scheduled basis?
MacroDroid (free up to five macros) can do the job.
The macro would be:
Trigger: Day/Time Trigger → select all the days and choose the time for trigger activation
Action: File Operation → ...
5
votes
Accepted
Which Google apps can be deleted or disabled without harm to the system?
This very much depends on the device and the Android version running on it, plus where you've bought it – as the lot of pre-installed apps might differ based on that. I'm not sure about Gmail – but ...

Izzy♦
- 90.8k
5
votes
Is there a native way to find all the installed apps that have access to a phone feature?
In case, you ever decide to go with a command-line way, you can try my approach.
Dependencies
Requires adb to be setup in PC.
Requires busybox binary. If the device is rooted, install Busybox app. ...
4
votes
Accepted
I Deleted files on internal storage but free space remains the same
I found a way to release the memory:
Connect you phone to a PC.
Open the memory with the File Explorer. Either "Card" or "Phone"
Open the file LOST.Dir
Erase the files in that folder.
This seems ...
4
votes
I Deleted files on internal storage but free space remains the same
Sometimes it may not reflect until restart. Moreover, thumbnails would be recreated once you open the images again. Perform a restart or reboot.
4
votes
How do I delete a single calendar in Android (not just hide it)?
Android devices have a local calendar storage database that is opaque and difficult to modify with app-level programmatic. You can, however, clear all local calendar data, which should remove the ...
4
votes
Accepted
Can I Delete a WhatsApp Message After 7 Min. Deadline?
Yes, there is a simple way to trick WhatsApp into thinking that 7 min. haven't passed yet.
This would involve A few simple steps.
(Note: this will only work within 5 days of sending the message)
...
3
votes
How can I secure-wipe free space?
The most reliable method is to manually copy large non-sensitive files (such as Linux images or the LibreOffice Installer Setup File) to the partition that you wish to erase the free space from, ...
3
votes
How can I delete ALL alarms in the stock Clock app?
Incredibly, this is still an unaddressed issue in 2022.
I have noticed that it's possible to ask google assistant to delete all of your active alarms -- meaning the ones that are scheduled to ring.
So ...
3
votes
Accepted
Can I delete an app I got on sale?
Bochur's answer is correct. By way of additional information in your Play Store → Account → Order History , these apps will be shown as 0 price payment apps as the screenshot below shows - ...
3
votes
Deleted thumbnail file but no space was freed
The .thumbnails folder has a file of the format .thumbdata4* whose size is shown to be really big usually. But in reality, it's not a big file and it's size is shown as such is because it's not a ...
3
votes
How to delete an app without deleting app data?
Assuming you are talking about apps you've installed yourself (and not about pre-installed apps), you can utilise adb for this. You need to know the app's package name first (the part shown in the ...

Izzy♦
- 90.8k
3
votes
Accepted
With Android, does a factory reset truly reset the device to the same as it was when it left the factory (unlike an iPhone)?
It is the same as an iPhone I believe. A "factory reset" removes all information in the data and user partition, but leaves everything in the system and associated partitions as is. That ...
3
votes
Accepted
How to safely delete/destroy data from a bricked phone?
Unless you have a means to power the device on and wipe the data properly, you need to physically destroy it. The data lives inside an eMMC chip which is conceptually just a SD card soldered to the ...
2
votes
Accepted
Wipe /data/ but not /data/media/ through ADB shell or fastboot
Boot into your custom Recovery, mount the data partition either using command-line or via GUI, and choose any of the following method:
(Note that TWRP already has the option to clear /data without ...
2
votes
Uninstalling versus disabling apps
In order to uninstall apps on touch-wiz, go to the apps folder then tap the left soft button. Now tap uninstall and touch the minus button for the app you want to remove. Finally, tap yes when it says ...
2
votes
How can I delete synchronized Google data? (contacts, app data etc)
Back up your contacts on phone using any app from play store ( see Restore: Any Solution?)
(also note the contacts app has an export and import function built-in, so you won't necessarily need any 3rd ...
2
votes
I deleted my Gmail account but I keep recieving the notification "Account Action Required" but I can't access the account since it's already deleted
Even if you deleted the account on Google, your phone is still trying to log into that account, and giving you the notification to tell you it's not working. You need to remove the account from your ...
2
votes
How to delete a date and time tab in setting to prevent user from changing it?
Please understand my awkward English (I am writing with an English dictionary.)
As you can see comments on this question, I have solved this problem by FireLord's help, but it not perfect, because I ...
2
votes
Accepted
Why deleting system files on a rooted Android says "device or resource is busy"?
If you are using Magisk modules, you must be trying to delete a bind mounted (1) directory. Enable Core Only Mode (no modules) in Magisk app and reboot. Then delete the stuff you want to.
2
votes
"Clear data" does not clear login details
You probably also need to remove the program account details from Settings -> Accounts and Backup -> Accounts
It is probably there that the account details are being saved. Mainly to allow you to ...
2
votes
Unable to delete .apk file
You could try rebooting your phone and deleting the file. It's possible that a running app or service has that file handle open and won't let you delete it for that reason.
It's also possible that ...
2
votes
Accepted
Will deleted images be safe in thumbnails folder?
Thumbnails are not really the exact images you deleted. They are just the cached images of extremely low quality which your phone used to show you images with more speed. Your phone save a Thumbnail ...
Only top scored, non community-wiki answers of a minimum length are eligible
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