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Hi all,

my old iPhone 4S is kind of sluggish and i am planning to purchase a new iPhone 6S this week. My question is how to permanently erase the whole old phone coz i will sell it to someone i am not familiar with. I heard the default easing method on iPhone is not that secure. thanks

asked 15 Dec '15, 22:14

oldlabguy0's gravatar image


closed 20 Dec '15, 22:39

spockers's gravatar image

spockers ♦♦

The question has been closed for being "Asinine answer quota met, move along now" by spockers, 20 Dec '15, 22:39

Just restore it in iTunes and that will put it on the latest version and wipe everything. If you are jailbroken on iOS 8.x, you can use Cydia Impactor and it will do the same thing, but preserve your current version.


answered 15 Dec '15, 22:39

xamas's gravatar image


edited 15 Dec '15, 22:40


There is NO guarantee that the data has been erased. We would need to know if the reset process actually writes zeros or some other value across ALL memory used for storage. A reset could just be as simple as erasing the file allocation table, while leaving all the data in the  memory. (I suspect that this is what happens). Someone with knowledge of memory access or suitable software for data recovery may be able to find data.

here I personally suggest you try Asswiper iOS Data Eraser app.I've using it for a year, I think it's really a nice tool which can clean up any type of junk files from iOS device, but also can permanently erase all content from device without restore.

(17 Dec '15, 04:44) Funnrosly Funnrosly's gravatar image

For peace of mind, i personally use a blender to wipe my old phones. I don't wan't want my precious data (collection of dad jokes) falling into the wrong hands.

(18 Dec '15, 19:37) justinred ♦ justinred's gravatar image

that's reason why I asked here. The erasing option seems not that safe according to CNET's article

(20 Dec '15, 03:38) roodrixx roodrixx's gravatar image

Yes, the default erasing method is indeed not safe. What I recommend is straping some C4 onto the iPhone and detonating it. Don't forget to turn on Find My iPhone if you want to recover it afterwards.

(20 Dec '15, 04:34) King Shoot King%20Shoot's gravatar image

What kind of glue to use after using find my iPhone? Lol

(20 Dec '15, 07:14) xamas xamas's gravatar image

thank u all for the kindly suggestions

(20 Dec '15, 22:35) oldlabguy0 oldlabguy0's gravatar image

As I said, Asswiper is gerat program that can make the deleted data unrecoverable, simply delete your data from iPhone will not erase completely. I used it to erase my 300+ contacts from my iPhone 5s before selling, this is the guide:

Hope it helps.


answered 20 Dec '15, 22:32

Funnrosly's gravatar image


edited 20 Dec '15, 22:38

spockers's gravatar image

spockers ♦♦

The entire partition is encrypted. You're either paranoid, or shilling for the makers of the tool you mentioned. Get therapy or go spam somewhere else,

(20 Dec '15, 22:35) spockers ♦♦ spockers's gravatar image

Spamming tip: don't make your entire comment history about one thing and one thing only. It's a dead giveaway. Put some time and effort into it, don't be so obvious. Thanks for playing!

(20 Dec '15, 22:46) spockers ♦♦ spockers's gravatar image

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Asked: 15 Dec '15, 22:14

Seen: 1,202 times

Last updated: 20 Dec '15, 22:46

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