Want to jailbreak and unlock but need to know how to tell what bootrom your iPhone 3GS is running? There are two numbers in your settings that will be a dead giveaway as to what bootrom your phone has. You'll need to know how to determine your bootrom in certain situations if you want to achieve a software unlock.
- Open up Settings
- Tap on General
- Go to About
- If you scroll down a bit you'll see your serial number and your model number.
You can use one of these two numbers to determine if you have an older or newer bootrom.
Model number method
The easiest of the two is the model number. If your model number begins with MC, you have a newer bootrom. As you can see above, my serial starts with an MB. I have an older bootrom.
Serial number method
Another way you can check is by looking at the 4th and 5th digits of your serial number. If it is lower than around week 35, your bootrom is older. I'd say the model number method is the most efficient but you can use both to determine your bootrom version.
If you have other jailbreak questions or run into issues, check out our jailbreak and unlock forums as well!
Daily Tips range from beginner-level 101 to advanced-level ninjary. If you already know this tip, keep the link handy as a quick way to help a friend. If you have a tip of your own you’d like to suggest, add them to the comments or send them in to firstname.lastname@example.org. (If it’s especially awesome and previously unknown to us, we’ll even give ya a reward…)
We may earn a commission for purchases using our links. Learn more.
Apple releases iPadOS 13.5.1
Apple has released iPadOS 13.5.1, which fixes some security bugs.
Apple might be giving people a reason to upgrade their 2012 MacBook Pro
Anyone who still uses a 2012 MacBook Pro should probably look to upgrade it sooner rather than later following a report that claims Apple will label it "obsolete" this month.
New report backs up claims that we'll wait until October for iPhone 12
Apple would normally announce its new iPhones in September, but the coronavirus situation seems to have put paid to that. All eyes are now on October instead.
Don't let the OLED screen on your iPhone X break — get a screen protector
If you want to protect your iPhone X, a screen protector is the way to go: Here are the best options you can buy right now.