Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > iPhone, iPod and iPad > iOS > Jailbreaks and iOS Hacks

Reply
 
Thread Tools Search this Thread Display Modes
Old Nov 3, 2009, 05:25 PM   #1
B737
macrumors 6502a
 
B737's Avatar
 
Join Date: Oct 2008
Location: Jersey Shore
backsn0w, tethered jailbreak - closer look

Im surprised this hasnt been discussed in more detail. From reading, there is a tremendous outpouring of good feedback for the blackra1n RC3, and rightfully so...

But this is a tethered jailbreak, like back in the early days! phone dies and you're on the road, you're SOL! i was just about to j/b a friends 3GS today (that was purchased today) and i thankfully aborted just before pushing the button. i was bummed!

theres no bones about it, geohot is a genius and this work in particular is amazing.

but i feel as though the tethered 'feature' of the jailbreak has been understated...

thoughts?
__________________
- 64 gb iPhone5 - iPad 2 - iOS6
- 13" MacBook Air, ML 10.8.2
- PC evga 780i intel, Win7

Last edited by B737; Nov 4, 2009 at 12:05 PM. Reason: eye cant spel
B737 is offline   0 Reply With Quote
Old Nov 3, 2009, 05:39 PM   #2
Night Spring
macrumors G3
 
Join Date: Jul 2008
Quote:
Originally Posted by B737 View Post
But this is a tethered jailbreak, like back in the early days!

[snip]

but i feel as though the tethered 'feature' of the jailbreak has been understated...

thoughts?
It's a tethered jailbreak only for the 3rd gen Touch, and recently purchased 3GS with the new bootrom. My guess is it hasn't been discussed much because it affects only a relative minority of jailbreakers.
Night Spring is offline   0 Reply With Quote
Old Nov 3, 2009, 05:48 PM   #3
Moi un Mouton
macrumors 68000
 
Join Date: Mar 2008
Location: Bracknell UK
Quote:
Originally Posted by B737 View Post
Im surprised this hasnt been discussed in more detail. From reading, there is a tremendous outpouring of good feedback from the blackra1n RC3, and rightfully so...

But this is a tethered jailbreak, like back in the early days! phone dies and you're on the road, you're SOL! i was just about to j/b a friends 3GS today (that was purchased today) and i thankfully aborted just before pushing the button. i was bummed!

theres no bones about it, geohot is a genius and this work in particular is amazing.

but i feel as though the tethered 'feature' of the jailbreak has been understated...

thoughts?
Not true for most devices, only the newest iphones with the new iBoot. I guess in the end someone will figure the solution to that out.

But for this community? 99% at least already have their iPhones and they do not have the new iBoot, so the JB/unlock is untethered.
Moi un Mouton is offline   0 Reply With Quote
Old Nov 3, 2009, 06:48 PM   #4
B737
Thread Starter
macrumors 6502a
 
B737's Avatar
 
Join Date: Oct 2008
Location: Jersey Shore
Ahhhhhhhh thanks for clearing all that up guys. That makes sense that's only an issue for the new bootrom ONLY.
__________________
- 64 gb iPhone5 - iPad 2 - iOS6
- 13" MacBook Air, ML 10.8.2
- PC evga 780i intel, Win7
B737 is offline   0 Reply With Quote
Old Nov 4, 2009, 11:46 AM   #5
pcguru83
macrumors 6502a
 
Join Date: Sep 2006
Location: Charlotte, NC
I've been jailbreaking since it first popped up a few weeks after the original iPhone's release. But I'm not entirely clear on what a tethered jailbreak actually is. Apparently I've done one before, but didn't realize it. What's the difference?
__________________
2011 27" iMac, 3.1 Ghz Quad i5, 16GB RAM
Black iPhone 5 32GB
Black iPad Mini 16GB
pcguru83 is offline   0 Reply With Quote
Old Nov 4, 2009, 12:17 PM   #6
Moi un Mouton
macrumors 68000
 
Join Date: Mar 2008
Location: Bracknell UK
I believe it means that if the phone is powered off then on reboot it will have forgotten it was jailbroken, so you then have to reconnect to your PC and rejailbreak.

I am not sure if this only happens when the battery runs right down, or also when you power it off yourself.
Moi un Mouton is offline   0 Reply With Quote
Old Nov 4, 2009, 01:15 PM   #7
dhlizard
macrumors G3
 
dhlizard's Avatar
 
Join Date: Mar 2009
Location: The Jailbreak Community
If you shut off the phone or restart the phone, it must be connected to the computer in order to restart.
__________________
Two iPhone 5S
iPad 4 iPad Air AppleTV 2
MacBook Pro Two iMacs

Look for me here Jailbreak/Unlock Chart
dhlizard is online now   0 Reply With Quote
Old Nov 4, 2009, 01:33 PM   #8
Night Spring
macrumors G3
 
Join Date: Jul 2008
Quote:
Originally Posted by Moi un Mouton View Post
I believe it means that if the phone is powered off then on reboot it will have forgotten it was jailbroken, so you then have to reconnect to your PC and rejailbreak.
"Rejailbreak" isn't exactly the right word. As I understand it, when the iPhone (or iPod touch) boots up, it checks the firmware to make sure it hasn't been modified. Untethered jailbreaks make the iPhone skip this step, allowing it to boot jailbroken firmware. Tethered jailbreaks need an external device, usually a computer, to insert a command so the iPhone can boot jailbroken firmware. So the jailbreak is never erased or "forgotten," just the ability to run it.

Quote:
Originally Posted by dhlizard View Post
If you shut off the phone or restart the phone, it must be connected to the computer in order to restart.
To be more precise, it's when you power off (whether it's because the battery runs out or you shut off the phone manually), or if you have to reboot, like when your phone freezes, or is sometimes required after you install a Cydia package. Most packages only require a respring (soft restart), which can be done without connecting to a computer.
Night Spring is offline   0 Reply With Quote
Old Nov 4, 2009, 02:24 PM   #9
pcguru83
macrumors 6502a
 
Join Date: Sep 2006
Location: Charlotte, NC
Thanks for the clarification guys. And the initial iPhone jailbreaks used this tethered method? I really don't recall that. Very interesting.
__________________
2011 27" iMac, 3.1 Ghz Quad i5, 16GB RAM
Black iPhone 5 32GB
Black iPad Mini 16GB
pcguru83 is offline   0 Reply With Quote
Old Nov 4, 2009, 05:43 PM   #10
scottuf
macrumors 6502
 
Join Date: Feb 2009
Location: Jupiter, FL
Quote:
Originally Posted by Night Spring View Post
"Rejailbreak" isn't exactly the right word. As I understand it, when the iPhone (or iPod touch) boots up, it checks the firmware to make sure it hasn't been modified. Untethered jailbreaks make the iPhone skip this step, allowing it to boot jailbroken firmware. Tethered jailbreaks need an external device, usually a computer, to insert a command so the iPhone can boot jailbroken firmware. So the jailbreak is never erased or "forgotten," just the ability to run it.
but just hooking it to a computer gets past that hangup? any computer? or do you need to run blackra1n again? that is the point that is never clarified, everyone just says that you need to hook it to the computer when you reboot. fortunately, i have the older bootrom ao i'm not in that boat, but who knows what the future holds.
scottuf is offline   0 Reply With Quote
Old Nov 5, 2009, 12:03 AM   #11
Night Spring
macrumors G3
 
Join Date: Jul 2008
Quote:
Originally Posted by scottuf View Post
but just hooking it to a computer gets past that hangup? any computer? or do you need to run blackra1n again? that is the point that is never clarified, everyone just says that you need to hook it to the computer when you reboot. fortunately, i have the older bootrom ao i'm not in that boat, but who knows what the future holds.
Oh, sorry about the confusion, yes, you do need to run blackra1n again -- that inserts the command I was talking about. But blackra1n is a standalone executable file that's easy to carry with you on any portable storage media. It'd fit in a floppy drive, if you can find a computer nowadays that reads floppys.
Night Spring is offline   0 Reply With Quote
Old Nov 5, 2009, 07:37 AM   #12
Ori
macrumors 6502
 
Join Date: Jun 2008
I've rebooted my phone several times and the blackrain hack and unlock is still there. I wonder if the same is the case if the battery runs out? I think its a different thing.

Just in case though how do I go about getting a tethered unlock?

Thanks,
Ori is offline   0 Reply With Quote
Old Nov 5, 2009, 07:55 AM   #13
Moi un Mouton
macrumors 68000
 
Join Date: Mar 2008
Location: Bracknell UK
The tethered jailbreak is only needed for very recent 3GS handsets that have got the updated bootrom
Moi un Mouton is offline   0 Reply With Quote
Old Nov 5, 2009, 01:03 PM   #14
scottuf
macrumors 6502
 
Join Date: Feb 2009
Location: Jupiter, FL
Quote:
Originally Posted by Night Spring View Post
Oh, sorry about the confusion, yes, you do need to run blackra1n again -- that inserts the command I was talking about. But blackra1n is a standalone executable file that's easy to carry with you on any portable storage media. It'd fit in a floppy drive, if you can find a computer nowadays that reads floppys.
that's what i thought, but thanks for making it official
scottuf is offline   0 Reply With Quote
Old Nov 5, 2009, 02:26 PM   #15
FastangV6
macrumors regular
 
Join Date: Oct 2007
Quote:
Originally Posted by Night Spring View Post
Oh, sorry about the confusion, yes, you do need to run blackra1n again -- that inserts the command I was talking about. But blackra1n is a standalone executable file that's easy to carry with you on any portable storage media. It'd fit in a floppy drive, if you can find a computer nowadays that reads floppys.
Don't forget you need to carry around the USB cable too. Not very convenient...
FastangV6 is offline   0 Reply With Quote
Old Nov 5, 2009, 02:30 PM   #16
Night Spring
macrumors G3
 
Join Date: Jul 2008
Quote:
Originally Posted by FastangV6 View Post
Don't forget you need to carry around the USB cable too. Not very convenient...
Depends on what you are doing. When I go to work I always take my laptop, so tucking a USB cable into the laptop bag is no hardship.
Night Spring is offline   0 Reply With Quote
Old Nov 5, 2009, 02:40 PM   #17
m3coolpix
macrumors 6502a
 
m3coolpix's Avatar
 
Join Date: Dec 2007
Maybe I'm in the minority here.....but I'm thinking of getting a current 32gb 3Gs before Apple closes the hole on even the tethered jailbreak.

I've already got a 16gb 3Gs with 3.1.2 JB'n running, and it's 99% everything I really need ATM for a phone. It's very stable, and does everything (save for Flash like we all want). With a new 32gb, I'd just run it at 3.1.2 with the tethered JB until it just dies. It'd have to be a very compelling Apple OS upgrade to cause me to go through that.

If a 'respring' doesn't require the tether, which it doesn't look like it does, then I don't really see an issue for me with it requiring the tether to do a hard reboot/off/on sequence. I only do that maybe once a week. Respring several times a day though....
__________________
Arguing on the internet-not unlike insanity looking in a mirror.
m3coolpix is offline   0 Reply With Quote
Old Nov 6, 2009, 01:56 PM   #18
Ori
macrumors 6502
 
Join Date: Jun 2008
Quote:
Originally Posted by Moi un Mouton View Post
The tethered jailbreak is only needed for very recent 3GS handsets that have got the updated bootrom
Which I have and I am just pointing out that a reboot doesn't break the JB or the unlock. It can break the wifi if I have a sim inserted for some reason though.

I haven't tried letting the battery drop, but I will cross that bridge when I come to it. I hope there is a tethered version soon or better still O2 will unlock my phone legit as my contract has expired!!!
Ori is offline   0 Reply With Quote
Old Nov 7, 2009, 09:28 AM   #19
Moi un Mouton
macrumors 68000
 
Join Date: Mar 2008
Location: Bracknell UK
Quote:
Originally Posted by Ori View Post
Which I have and I am just pointing out that a reboot doesn't break the JB or the unlock. It can break the wifi if I have a sim inserted for some reason though.

I haven't tried letting the battery drop, but I will cross that bridge when I come to it. I hope there is a tethered version soon or better still O2 will unlock my phone legit as my contract has expired!!!
Just curious to know how you have a 3GS less than a month old AND an expired contract
Moi un Mouton is offline   0 Reply With Quote
Old Nov 7, 2009, 09:34 AM   #20
dhlizard
macrumors G3
 
dhlizard's Avatar
 
Join Date: Mar 2009
Location: The Jailbreak Community
Quote:
Originally Posted by Moi un Mouton View Post
Just curious to know how you have a 3GS less than a month old AND an expired contract
Probably bought it "barely" used or paid full no contract price.

I just bought 2 "barely used" 3GS phones with older bootrom (for untethered jailbreak convenience) and my contract is about to expire. Of course being in the US, I can't get it unlocked, but I like the idea of a couple of 2 month old phones, with 10 months of warranty, and no contract.

Had I waited for my renewal date, I would have gotten 3GS phones with tethered jailbreak bootrom.
__________________
Two iPhone 5S
iPad 4 iPad Air AppleTV 2
MacBook Pro Two iMacs

Look for me here Jailbreak/Unlock Chart
dhlizard is online now   0 Reply With Quote
Old Nov 7, 2009, 09:54 AM   #21
thelatinist
macrumors 603
 
thelatinist's Avatar
 
Join Date: Aug 2009
Location: Connecticut, USA
Quote:
Originally Posted by Ori View Post
I've rebooted my phone several times and the blackrain hack and unlock is still there. I wonder if the same is the case if the battery runs out? I think its a different thing.

Just in case though how do I go about getting a tethered unlock?

Thanks,
If you've rebooted and it starts without re-running blackra1n, then you have an untethered jailbreak and don't have to worry about tethered-ness.
__________________
Late 2008 (Penryn) 13" White MacBook 2.4 GHz Core2Duo, 4 GB Ram, Samsung 840p SSD; iPhone 4S 64 GB, AppleCare+
thelatinist is offline   0 Reply With Quote

Reply
MacRumors Forums > iPhone, iPod and iPad > iOS > Jailbreaks and iOS Hacks

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
iPhone: tethered and non tethered jailbreak? nanogirl21 Jailbreaks and iOS Hacks 5 Dec 23, 2012 01:21 PM
iPhone: First tethered jailbreak, need help? khodan Jailbreaks and iOS Hacks 5 Dec 8, 2012 06:21 PM
iPhone tethered jailbreak help?? Cyrill iPhone Tips, Help and Troubleshooting 0 Oct 26, 2012 03:04 PM
iPhone: iOS6 Jailbreak Tethered go0sebumpz Jailbreaks and iOS Hacks 20 Oct 5, 2012 10:20 PM
I need help... Old Tethered Jailbreak Want300 Jailbreaks and iOS Hacks 23 Aug 10, 2012 02:44 PM

Forum Jump

All times are GMT -5. The time now is 11:40 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC