To search this page for a keyword (such as “baseband” or “SHSH”), use Ctrl-F on Windows, Command-F on Mac, or this feature in Safari on iOS. More help with finding keywords in a page: for Internet Explorer, for Firefox, for Chrome.
If you have a question, please don’t post it in the FAQ. Just click “ask a question” on the top right. Thanks!
Most popular questions
- How do I bypass activation lock?
- How do I get my device out of “Safe Mode” (Springboard crashing)?
- How do I fix iTunes errors and other problems when trying to restore/upgrade/downgrade my device?
- What are the correct steps for upgrading my jailbroken device and easily reinstalling my Cydia packages?
- How do I build custom firmware to upgrade iOS on my device while preserving its unlockable baseband?
- How do I restore (downgrade/upgrade) my device to iOS 7.0.x or other non-latest iOS versions?
- How do I fix a device that isn’t booting up properly (boot loop, stuck at Apple logo, etc.)?
- How do I fix this weird problem on my device if I’m not sure which tweak is causing it?
Jailbreaking guides and definitions
- How do I jailbreak? What tool can I use to jailbreak?
- What’s the difference between jailbreaking and unlocking?
- I’m considering jailbreaking, but what are any downsides I should know about, from legality to warranty to security?
- Does jailbreaking upgrade my firmware and/or delete my existing data?
- How do I remove my jailbreak?
- What is DFU mode, and how do I put my device into DFU mode?
- What is “pwned” DFU mode?
- Can I put my device into DFU mode with a broken home button?
- What’s a tethered jailbreak? What happens when I reboot my tethered device?
- When will there be an untethered jailbreak for iOS x.x.x or an unlock for baseband xx.xx.xx?
- Where does iTunes store firmware IPSW files it downloads?
- Do I have to pay for any jailbreaking or unlocking software?
Jailbreaking errors and troubleshooting
- Why doesn’t redsn0w recognize the IPSW (firmware) file I downloaded with Internet Explorer?
- Why is redsn0w stuck on uploading ramdisk?
- Why is redsn0w or iTunes saying that my firmware file is incompatible?
- How do I make sure greenpois0n runs successfully, and what if Loader doesn’t install Cydia?
- How do I fix a device that seems to be stuck in “Connect to iTunes” mode (recovery mode)?
- GeekSn0w is telling me I don’t have JDK installed, what do I do?
- Where are the iTunes 12.1 Windows 64-bit versions that prevent / fix jailbreak tool compatibility errors?
Post-jailbreaking troubleshooting
- How do I fix a device that isn’t booting up properly (boot loop, stuck at Apple logo, etc.)?
- What do I do if my device says Springboard crashed (“Safe Mode”)?
- How do I fix this weird problem on my device if I’m not sure which tweak is causing it?
- What can I do about unsatisfactory battery life after jailbreaking?
- Why isn’t iBooks working on my device?
- Why have the apps on my screen “shrunk” to 1/4 size?
- Where are the iTunes 12.1 Windows 64-bit versions that prevent / fix jailbreak tool compatibility errors?
Downgrading and upgrading
- What are the correct steps for upgrading my jailbroken device and easily reinstalling my Cydia packages?
- How do I build custom firmware to upgrade iOS on my device while preserving its unlockable baseband?
- Why do I need SHSH blobs? Can I use them on all devices?
- How do I restore (downgrade/upgrade) my device to iOS 5.x or other non-latest iOS versions?
- How do I restore (downgrade/upgrade) my device to iOS 4.x using TinyUmbrella?
- How do I create a signed custom IPSW for my currently installed iOS version?
- How do I fix iTunes errors and other problems when trying to restore/upgrade/downgrade my device?
- How do I fix iTunes error 1013 or 3194 (“device not eligible for requested build”)?
- How do I fix iTunes error 160x when using custom firmware?
- How do I update my device on X.X.X to 7.0.X?
Carrier unlocking
- Can I unlock my iPhone via ultrasn0w (software unlock)?
- What do I need to know about installing the iPad baseband (06.15.00) to unlock my iPhone 3G/3GS?
- How can I downgrade the baseband for my iPhone 3GS on iOS 6, so that I can unlock it?
- Can I get some help with using Gevey SIM?
- What is hacktivation? How can I hacktivate?
- How to use SAM to get proper activation of my iPhone?
- How can I install ultrasn0w on my iPhone without Wi-Fi?
Cydia, tweaks, and themes
- How do I backup and restore my installed tweaks and themes from Cydia?
- Which third-party repositories are safe to add to Cydia, what do they contain, and how?
- How do I install Cydia after uninstalling it?
- What does this Cydia error message mean, and how do I fix it?
- What does it mean when Cydia says my TSS request is pending?
- How can I purchase Cydia products without having a debit or credit card?
- Why aren’t my Winterboard themes working on iOS 5?
- How do I begin theming with Winterboard?
- Which Cydia Tweaks Work On iOS 7.0.x?
- Which Cydia Tweaks Work On iOS 7.1.x?
- Which Cydia Tweaks Work On iOS 8.0 – 8.1.2?
- How Do I Know Which Tweaks Are Free And Paid?
- I’m on iOS 7/8 and “afc2add” doesn’t work
General
- Can I install Siri on my iPhone or iPod touch? Can I get some help with Spire?
- Where’s all the free stuff?
- How do I change my device’s default password to be safer after installing OpenSSH?
- Can I install Android on my iPhone?
- What are Springboard, Summerboard, and Winterboard?
- How do I look at my device’s syslog and/or send it to a developer?
- Where do I begin learning how to develop tweaks, or how jailbreaks are created?
- Is it safe to update my carrier settings whilst jailbroken?
