If you’re out on the road with your tethered jailbroken iPhone running on iOS 5, what happens when you ran out of power and you don’t have your computer with you? Are you scr*wed? Well, not really, thanks to SemiTether.
SemiTether allows you to reboot your tethered jailbroken iPhone without a computer. However, the biggest downside with it is that you won’t be able to use Mail, Safari and Cydia until you reboot your iPhone using Redsn0w or iBooty.
For ultrasn0w unlockers, please note this won’t work for you because ultrasn0w will not work if your iPhone is booted with SemiTether. MuscleNerd had confirmed this:
“ultrasn0w needs JB so if you were semitethered and rebooted away from computer, ultrasn0w won’t work”
You should already know by now in order to boot tethered it you would usually launch Redsn0w > Extras > Just Boot. Your iPhone will then boot into tethered state and you can use Safari, Cydia without any issue. iBooty is an alternative tool if your firmware was custom made with sn0wbreeze.
Despite this shortfall, it will come in handy when you’re out on the road.
Here’s how to install it:
1. Launch Cydia and add the following URL to your source:
2. Once added to your source search for SemiTether. Be sure to read the notes by the developer as there are several “caveats” with it. Oh, this requires iOS 5.
Once installed, go ahead and try it. The next time you need to reboot your iPhone you can do it without using redsn0w.
Let us know what you think!
Here’s a one page summary of all things jailbreak and unlock for iPhone 3G, 3GS, 4 and 4S as at 22 October, 2011.
Jailbreak: not available.
Unlock: not available; contract-free factory unlocked iPhone 4S now sold at most Apple Stores worldwide.
Jailbreak: untethered for all iOS except iOS 5, iOS 4.3.5 and iOS 4.3.4.
Unlock (baseband): ultrasn0w on 1.59.00 only, Turbo SIM for 2.10.04, 3.10.01 and 4.10.01, baseband chip replacement possible for 4.11.08.
Jailbreak: untethered for all iOS except iOS 5, iOS 4.3.5 and iOS 4.3.4.
Unlock (baseband): ultrasn0w 1.2.4 compatible on 4.26.08, 5.11.07, 5.12.01, 5.13.04 and 6.15.00 (iPad baseband). 5.14.02, 5.15.04, 5.16.02 and 5.16.05 cannot be unlocked – either update to 6.15.00 (read risks here) or replace baseband chip with version 5.13.04.
Jailbreak: untethered up to iOS 4.2.1 (highest iOS version supported).
Unlock (baseband): same as iPhone 3GS.
- Baseband downgrade via software not possible; however it will work on iPhone 4 is the firmware is still being signed by Apple e.g. downgrade from 4.11.08 to 4.10.01.
- iPhone 3GS iOS 4.1 is *currently* being signed by Apple, possible to downgrade for untethered jailbreak even if no SHSH saved.
- If stuck on baseband 5.14.02, 5.15.04, 5.16.02 and 5.16.05, update to 6.15.00 using redsn0w to unlock with ultrasn0w (will break GPS).
- iOS 5 updates baseband to 5.16.05 (3GS) and 4.11.08 (iPhone 4) – no unlock available.
- iPhone 3GS (that needs unlocking) on iOS 5 baseband 5.16.05 can downgrade to iOS 4.1, update baseband to 6.15.00 and then update to iOS 5 using custom firmware. Read full guide here.
- Never restore using stock firmware. Custom iOS 5 firmware (preserves baseband) available for download here.
- Use iTunes 10.4 or below when working on iOS 4.x or earlier. iTunes 10.5 is only for iOS 5.
- iPhone 4 IMEI unlock available form some European and Australian carriers.
- Turbo SIM for iPhone 4 works on iOS 5 as long as the baseband is not 4.11.08.
Be sure to subscribe or Like Us on Facebook to keep yourself up-to-date with the latest development. The jailbreak or unlock that you’ve been waiting for may be out anytime soon!
Baseband downgrade from 4.11.08 to 4.10.01 via chip replacement is now possible on iPhone 4.
UPDATE: If yours is locked to AT&T, get the official permanent unlock here. Check our Store for officially unlock iPhone on other network.
My team and I would like to present sort of a good news for those who are currently stuck on baseband 4.11.08 as we managed to downgrade an iPhone 4′s baseband from 4.11.08 to 4.10.01 earlier today on 22 October, 2011.
However, It’s still not now possible to downgrade to 1.59.00 to make it unlockable with ultrasn0w. We have tried this numerous times even before Gevey Turbo SIM was released.
It’s similar to our baseband chip replacement service for 3G and 3GS, but this method requires two different chips to be replaced – the Infineon X-GOLD 618 processor chip and the Intel/Numonyx 128MB NOR DDR chip.
Once your iPhone 4 baseband has been downgraded to 4.10.01, you can then unlock it with a Turbo SIM.
There are a few tiny setbacks with this method – your iPhone serial number and IMEI will change. That means you can only hacktivate (activate) it with redsn0w or use custom hacktivated firmware in order to do a full restore. However, it is still possible to use original firmware to restore your iPhone 4 if you ever need to; unlike iPhone 3G/3GS on baseband 6.15.00 which doesn’t allow you to restore at all.
We are currently doing extensive testing and planning to launch this service very soon have launched this service. Customers who get their baseband downgraded using this service with us will also be getting a FREE Gevey Blue Turbo SIM worth $44.95. If you have the tools and skills to replace them youself, purchase the chips here.
Click here to read more about this service on our online store
Be sure to subscribe to us or LIKE us on Facebook to keep yourself up-to-date with new unlocking methods.
Without a doubt, the iPhone 4S takes stunning photos. So you must be wondering by now if you can install the 8 megapixel camera lens on your iPhone 4?
Well, I got my hands dirty by purchasing an iPhone 4S camera lens.
At a first glance they look 95% identical – the overall size, design, and even the connector that goes to the logic board.
I was able to attach the camera without any issue on an iPhone 4. The phone boots up normally.
However, when launching the Camera app, the virtual shutter was stuck in a closed position.
Even after jailbreaking it (iOS 5) the shutter still wouldn’t open. I also tried with different apps that use the camera lens but to no avail.
This means Apple had already thought about this when they were building the prototype of iPhone 4S. It’s further reflecting Apple’s typical ‘closed system’ and they’re really not leaving any stone unturned. I also suspect that the new lens is utilizing an updated device driver that checks the hardware to determine if it’s an iPhone 4S or otherwise. Advanced programmers should be able to figure this out, right? :)
Well, I hope this information will give hackers a head start to make iPhone 4S’ superb 8-megapixel camera lens compatible for the iPhone 4.
OK – so you’ve seen the iPhone 4S running on iOS 5 and all the bells and whistles that come with it. Now let’s take a look what’s inside – deep inside – the logic board.
TechRepublic’s Bill Detwiler had recently disassembled an iPhone 4S and took detailed images of the innards of an iPhone 4S logic board.
Apple’s A5 Processor: This is a 1GHz dual-core processor (with 512MB RAM) manufactured by “arch rival” Samsung. Apple said that this processor provides “two times more power and up to seven times faster graphics” than the A4 chip.
These chips appear to be the STMicro gyroscope and STMicro three-axis accelerometer which respond to 2D and 3D directional movement e.g. switching the iPhone from portrait to landscape mode, tilting the phone etc.
This is Qualcomm’s RT8605 (biggest chip on the photo) Multi-band RF Transceiver that is also used on HTC’s Thunderbolt.
The TriQuint TQM9M9030 chip is a dual-band duplexer bank.
Avago ACPM-7181 chip is one of the power amplifiers on the logic board.
Here’s another power amp made by Skyworks with the marking 77464-20 on it.
Here’s the Qualcomm MDM6610 baseband chip which ultimately made the iPhone 4S a ‘world phone’ that supports the following network:
- UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
- GSM/EDGE (850, 900, 1800, 1900 MHz)
- CDMA EV-DO Rev. A (800, 1900 MHz)
Verizon’s iPhone 4 has Qualcomm MDM6600 chip on it.
The chip that manages power on the logic board is the Qualcomm PM8020 power management IC (PMIC).
And finally a Murata SW SS1830010 chip that holds a Broadcom chip to handle Wi-Fi/Bluetooth connectivity.
Well, it’s really amazing how these chips work together to give you an impressive mobile device like the iPhone 4S. The marvels of engineering indeed!
All images are courtesy of TechRepublic.