This tweak protects your iPhone from the “January 1, 1970” bug

By , Feb 16, 2016

A recent bug discovered in the iOS firmware where setting your date back to a certain point in time could brick your device has been getting quite the coverage all across the internet as of late.

With so many people now having knowledge of the problem, the risk has never been greater than it is right now that someone with malicious intent could grab your iPhone while you’re not looking and set your date back to the dangerous date to brick your device on you.

Fortunately, a new free jailbreak tweak called BrickDate is available in Cydia that can protect you from having your date changed to the dangerous date.

How BrickDate works

BrickDate is a bricking prevention jailbreak tweak, and while we aren’t going to try changing our device’s date to the dangerous date known to brick 64-bit iOS devices for obvious reasons, we will vouch for the developer of the tweak and explain how this tweak works to protect you.

The tweak prevents your date and time from being manually set back to the dangerous date, which is January 1, 1970. The bricking would normally occur when your device is set to this time period, and then you attempt to reboot it, after which it will reportedly not turn back on. It’s also been said that even a DFU mode restore will not fix this problem.

By preventing your device from being set to this time, you effectively prevent the chance of your device being bricked by someone who wants to cause you some drama by setting your time back while you’re not looking.

The tweak will add a preferences pane to the Settings app where you can toggle it on or off, and can kill the Settings app to save your changes.

Easy enough; right?

Please note however that because this is a bug that we aren’t going to test on our own devices in the chance that it might brick them, we cannot confirm if this tweak actually works or not, so you’ll have to install it at your own risk. While we love to test things before condoning them, this is a tweak we physically cannot test without the risk of bricking one of our own devices.

My thoughts on BrickDate

Although a strong passcode and Touch ID work just as well to protect you from someone getting into your device and changing your date and time settings, not everyone uses these security features. Besides the point, it’s even possible that someone knows your passcode, so this is an extra step of security I would recommend you install even if you have a passcode.

Since jailbroken firmware cannot be updated to a later firmware without losing the jailbreak, if Apple were to release a fix for this problem by way of a future iOS update, then you wouldn’t be able to get it without losing your jailbreak. With that being said, having a hot fix available in Cydia to prevent the problem in the first place is a great idea so you can keep your jailbreak without updating.

One thing to note is that BrickDate only prevents the date and time settings from being changed by the user via the Settings app; it doesn’t protect you programmatically, which means that any kind of malware you might download and run on your device might still have the ability to change your date and time settings without your permission.


This bricking scare is something Apple will have to fix in a future software update, but if you’re jailbroken, you can still put up some walls of defense for yourself. BrickDate, which is a free download from Cydia’s BigBoss repository, is the first wall of defense against having your date changed to the dangerous date, January 1, 1970, and potentially having a bricked device the next time you boot it up.

What are your thought on the BrickDate jailbreak tweak? Share in the comments below.

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  • igorsky

    Or you can just, you know, not change your date to January 1, 1970. No tweak necessary.

    • Anthony Bouchard

      As noted in the post, “…it’s even possible that someone knows your passcode, so this is an extra step of security I would recommend…”

      It might not be YOU who changes it. That’s the point.

      • Blip dude

        Believe me, you’d be amazed at how tech-dumb some people can be, so I wouldn’t worry about that too much. In my scenario, I don’t have to worry about passcodes either. It helps having horrible stuff on your phone that even the jerk friends will tend to avoid touching your device.

      • Manuel Molina

        Agree. my coworker recently broke up with her ex and was considering to do this to his phone. You have to protect yourself out in this world for viruses and anything out that that can hurt you.

      • Marcus

        I was worrying about this when I first heard about the bug. I don’t have any enemies, but I’m definitely installing this tweak… Thanks Anthony!

      • Rodney Coleman

        But still what are the odds of someone doing this??? Idiots

      • iByron

        Y’all need to hang out with better people.

    • Tyler James Lopez


    • You could also install a malicious tweak that sets your phone’s date to 01/01/70 … this is just an extra bit of protection

  • iPhoneWINS

    eh… im not worried about this at all

    • Blip dude

      Same here

    • Rahimo

      lucky you! You don’t have crazy friends!! Hhhhh

  • Manuel Molina

    Awe, a tweak without Jeff…. How weird.

  • sNick

    I’ve found Jeff!! He’s gone to another Apple Site.. I just say “9to5Mac”. 🙂
    But iDB is best!!!

    • Tommy

      whaaaat???!??!?! at least we have found him!!!!! but yes he was the best here ;(

    • iNeedANameHere

      I just had to make a new bookmark and move it to the top of Safari.

    • Marcus

      Wow. I was planning on following Jeff around the internet with what he decided to do, but I’m not going to start reading another blog / news site. Good thing we still have Sebastien, Cody, and Christian at iDB.

      I started reading this site because it was primarily a site for jailbreak news. That’s sort of shifted and now it’s Apple news, but as long as iDB still has a heavy amount of jailbreak stuff I’ll stay.

    • Noohar


      • ClaudieX X

        Thank you very much !!!

      • ClaudieX X

        but there I can’t find where to sign in to make a comment…

      • Rahimo

        Oooooh thanks a lot! He was a hero in iDB!! But we still have other heroes like Cody and Sebastian and others!

  • czbird

    Sadly, you don’t need any passcodes to do harm. Just set up a free wifi hotspot with fake NMT server, and all impacted iStuff in your area that connects to you are doomed. Unless they have turned off automatic time fetch. Kinda PITA…

  • Jason Coronado

    I just read that disconnecting the battery forces the date to reset which allows the phone to reboot, thus unbricking the phone.

    • Yeah you just have to have the tools and the skills to disassemble your iPhone and disconnect your battery, thus voiding your warranty

      • Jason Coronado

        There are a plethora of tutorials for taking the LCD off. Tools are a couple bucks (if that) on eBay. Disconnecting the battery requires removing 2 screws. Considering the alternative, this is a risk worth taking. Some might find professional cell phone repair businesses a better bet, albeit a bit pricey.

  • iByron

    “…the risk has never been greater than it is right now that someone with malicious intent could grab your iPhone while you’re not looking and set your date back to the dangerous date to brick your device on you.”

    Wait. What?