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How to turn your tethered iOS5 jailbreak into a semi-tethered jailbreak

Jmills87

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There is a new package available that turns your tethered iOS5 jailbreak into a semi-tethered jailbreak. It allows you to reboot your phone even without booting tethered. Of course you can't use cydia or any cydia apps or tweaks, and you also can't use Safari or Mail until you boot tethered again, but you can at least use the phone and SMS and iTunes apps so that if you reboot away from your computer your phone isn't completely useless.

First you must have a jailbroken device on iOS5. This will work for any device on iOS5 except for the iPad2 and the iPhone 4S of course.

Step 1: Go to the "Manage" tab of Cydia and select "Sources" in the top corner click "edit" and then click "add" and enter the URL http://thebigboss.org/semitether. Once the source has been added click "return to cydia"

Step 2: Click on the search tab and type in "SemiTether" and click the result that comes up and install the package.

Step 3: Now just reboot the device and you will see that you can now reboot to your springboard without booting tethered.

Read more about SemiTether here: http://www.iphoneforums.net/forum/i...ethered-jailbreak-beta-testing-ios-5-a-24496/
 
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iFrog

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Are you using that already jmills?

Thanks for the info!!!!
 
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Jmills87

Jmills87

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Are you using that already jmills?

Thanks for the info!!!!

I am still on 4.2.8 but I just installed it on a friends iPhone4, works pretty well from what I could tell, all of his app store apps worked fine on semi-tethered mode
 

iFrog

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Sounds cool, I don't know if I'm ready to try that but sounds like a cool alternative, better than not been JB or totally tether.
 

iFrog

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Edit: October 23, 2:37am.
I updated to 0.7.9. This version will take about 90 seconds after it first boots up and then your device will respring again. This timing was the only way to get some of the launch daemons to properly relaunch.

This version should fix issues for some of you folks where:
1) Device does not sync with itunes and only errors. Hopefully solved.
2) Device reboots after 2-3 minutes.
3) App sync issue – this is unworkable. Appsync hard patches system files and does not even use mobile substrate. I had to conflict with it. For now, semi-tether boot is impossible with appsync. You guys need to bug those guys to fix appsync to use mobile substrate (like everyone else uses).

Note, Saurik is working on an update to mobile substrate that will solve many of the issues with the semi-tether package. Hopefully this will be out in a day or two. At this time, we can finalize beta testing. I plan to hold further updates until after Saurik has released his mobile substrate update. Saurik’s updates will eliminate the need for the long 90 second respring on boot also.

This update was only tested on iphone 4. After saurik’s mobile substrate changes, more devices will be tested. Next updates coming in next 2-3 days.

——————————–
Original Post:
My iOS5 semitethered jailbreak package is ready for beta testing. What is semitethered jailbreak and why do you care? In short, it is protection for if your device reboots while you’re on the road. Read on.

As you may know, iOS5 currently has a tethered jailbreak. This means that after you have jailbroken and installed most stuff you care about, you go to reboot your device, and it will no longer boot. You will be either stuck at apple logo forever, or you will get to itunes restore screen. When this happens, you have to hook up to your computer and use redsn0w “just boot” feature which gets you rebooted successfully again. It’s not all bad, as iOS5 is pretty stable. But if your device crashes and reboots while you’re out on the road, you are screwed and without a phone until you get home.

An untethered jailbreak is one that does not have such problems. Here you can reboot and the device reboots successfully. Because we are using the limera1n exploit discovered from Geohot last year, we are always guaranteed a tethered jailbreak on last generation devices. A new exploit will need to be found to untether us.

To get us through this period, I have worked on a semi-tethered solution. The semi-tethered jailbreak will allow you to reboot on the road, but with limited functionality. It is enough that you are no longer stranded, and you can use your phone, text, and many other features. This is just until you get home and can use redsn0w again to “just boot tethered”. Once you do that, you’re back to fully functional state.

Here is a summary of what you can and cannot do when in semi-tethered reboot state. Remember, this is only when your device crashed and rebooted on the road and before you got back to your computer to “just boot”. It is better than being stuck in apple logo:

1) Can use phone, sms (text messages)
2) Can use every other stock app on iphone.
3) Cannot use mobile safari
4) Can use other appstore web browsers such as atomic web browser
5) Cannot use mail app. You could install a gmail app from appstore or such instead.
6) You cannot use any jailbreak tweak, app, cydia until you boot tethered.
7) While in the semitether booted state, you should not add a jailbreak ios5 notification such as sbsettings to notifications during this state or your device will be stuck in a respring loop until you get home to “boot tethered”.

Those are all the limitations I have found so far. There may be some others. I may provide a more technical write up on why these limitations exist, but for now it doesn’t really matter. They just do.

Now, there are some other caveats to installing this package:

1) The device will take longer to boot up. When you reboot, it has to reload every service. It will respring a couple times also.
2) According to Saurik, there are some “problems” to reloading all daemons on the fly. This is why mobile substrate installation requires “reboot device” in cydia. I have not experienced any of these problems, but I am not promising they do not exist. This is why we will need testing to see which problems may occur.

I believe the good outweigh the bad here. Once the untethered jailbreak is out, you will not need or want to install this semitether package. In future iOS versions when we are back to having only a tethered jailbreak, you should be able to install this again to semitether your jailbreak.

As far as support for this package, please send me email preferably from Cydia so the proper semitether subject is used. If you want to email me from a computer, and want a response, use this subject: “Cydia/APT(A): semitether”. Remember, this is still in beta stages and may not be perfect. Do not install this if you are not prepared for that.

As for current testing, I have only tested this on an iphone 4 GSM running iOS5. As further testing shows success, I will update this page. Further, when this package seems stable enough, I may move it into the main bigboss source.

To install this, add the following repository to cydia: http://thebigboss.org/semitether. Note: after install, you will have to reboot your device, so make sure you are prepared at a computer to reboot tethered with redsn0w or just “home button out” of cydia and manually respring until you get home.

To test the success of this, simply reboot your device. If it boots up, it worked. Make sure you are near your computer so you can tether boot it after to get your jailbreak functionality back.

Categories: Apps, Jailbreak
 

Skyjacker07

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Is this something new for ios 5 my first jailbreak of the iPhone 4 was a tethered jailbreak, you could reboot and everything would work it just operated like a non jailbroke phone, until you did a tethered reboot. There wouldn't be a Cydia icon or nothing.
 

ricky455

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hey can u tell me what the diffrent between tethered jailbreak and semi tethered jailbreak?
 

zig9449

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All that is needed for a semi tethered jailbreak is Mobile Substrate. Once Mobile Substrate is installed, you then have a semi-tethered jailbreak. The Semi-Tether package from the semitether repo is only suppose to reapply the semitether if needed, patch Safari for use in a none-jailbroken state, and protect notification center widgets.

This has been like this since iOS 5.0.
 
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zig9449

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saintdawson said:
Is it a re boot or respring to download that package

Neither.

Tho it depends. It mite be a respring...definitely not a reboot. Last time I installed I didn't have to do anything but tap "Return To Cydia".

And if it does say reboot....just DO NOT tap reboot. Just plug in phone, shut off, then enter DFU mode and click the just boot button. No big deal really.
 

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