How to erase all data on Android before selling?

[kkoppos]

I am quite confused now. Some one says factory reset is secure enough to destroy the data on the phone. But someone says it is not. The data can be recovered. I want to know as i will sell the phone soon.

[Forkinhades]

Factory reset is fine.

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[kkoppos]

13 hours ago, Forkinhades said:

Factory reset is fine.

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Nope. I did that but the files still be available under data recovery tools. Tested on my OP3

[Forkinhades]

What files? ,

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[dotpoom]

18 hours ago, Forkinhades said:

Factory reset is fine.

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Good to know that.....I want to erase everything before I die.....now,.. can you tell me when I'm going to die? 555

[Forkinhades]

Sorry left my crystal ball at home.
With comnents like your last, it wont be long.

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[topt]

5 hours ago, kkoppos said:

Nope. I did that but the files still be available under data recovery tools. Tested on my OP3

If you knew the answer why did you post it as a question?

[wcoast]

The solution is to encrypt the phone, then wipe it

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[Kabula]

The instructions can be found by utilizing the Google search engine.

[DavoTheGun]

Dial these numbers and all is wiped!

 

X2767X3855# 

[lvr181]

Get your answer in writing from Samsung, if they are wrong then maybe you have some redress in law?

But I would think factory reset would do.

Beware of snake oil salespeople trying to sell you a program that will wipe or otherwise "hide" your private data.

[Forkinhades]

When a factory restore is done, some apps will remain on the phone, but all the data associated with them will have been removed.
Also make sure you take out the sd card, as data will be stored on there, which the factory reset will not touch.

Before you do a factory reset, uninstall all your apps first.

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[Forkinhades]

Unhelpful post removed

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[Crossy]

To be honest, removing the SD card and doing a factory reset should be more than enough for sale to a regular person.

 

A data wipe with one of the many security tools first cannot hurt.

[JHolmesJr]

A reset suffices for most mortals unless you are working in the white house.

 

if they recovered my data all they would find are assorted lewd pictures of private parts 

 

they're welcome if they can stomach the sight.

[wcoast]

As I mentioned before encrypt and factory reset. There are many tools available to search for deleted photos, videos etc, and there is a small chance that a savvy user could find fragments of photo files on a reset device, but encrypted files renders these tools useless.

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[ThaiWai]

Google down again?

[kkoppos]

21 hours ago, Forkinhades said:

What files? ,

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Contacts, photos, recorded videos, documents

[oldcarguy]

can you write over the old data ?

 

turn you camera on video and fill the memory with  boring video of the sky ,

 

and other files the same way......

[steven100]

20 hours ago, DavoTheGun said:

Dial these numbers and all is wiped!

 

X2767X3855# 

I tried that but I got Pizza hut delivery .....

[lvr181]

6 hours ago, steven100 said:

I tried that but I got Pizza hut delivery .....

With the 'X' I thought it was some sort of dial a porn? 

[Forkinhades]

Contacts, photos, recorded videos, documents

Just delete the folders, then do your hard reset.

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[Forkinhades]

^^^^ If you have goat porn on your phone, then perhaps you should not sell it. ???

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[kkoppos]

On 6/2/2017 at 7:20 PM, Forkinhades said:

^^^^ If you have goat porn on your phone, then perhaps you should not sell it. ???

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I don't mind sharing the porn staff, lol. However, i am more concerned about  my privacy. I got several suggestions that encrypt the phone and do the factory reset.

[Yoomsg]

I once had a similar situation , the all the phone data can not completely deleted from phone by factory reset , you'd better use the tool to clean up your phone before selling 

[ravip]

After a factory reset, do not log into the phone with your Gmail account.

And if it's worth the trouble follow this procedure >>> https://www.cnet.com/how-to/the-best-way-to-completely-wipe-your-android-device/

 

[Forkinhades]

Yes article covers everything thats been said, and indeed taking a hammer to it. LOL

Good work. [emoji16]

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[Yoomsg]

On 2017/6/6 at 9:59 AM, kkoppos said:

I don't mind sharing the porn staff, lol. However, i am more concerned about  my privacy. I got several suggestions that encrypt the phone and do the factory reset.

 

factory reset won't completely wipe your Android phone, and data still be recoverable with easy.  I know some Android data wiper could be able to erase data on Android, like safewiper for Android, but it's not free, you need to register. the trail version allows user to wipe 50 files. I used the trail version.

https://www.safewiper.com/tutorials/android-data-eraser.html

 

You need to connect your phone to PC via USB and back up your data.

 

[Jdietz]

Encrypt then factory reset is good advise. After the reset the encryption key will be permanently lost and the encryption is good enough for mere mortals.

Don't forget to encrypt the SD card as well if you plan to leave it in.