Showing posts with label baseband. Show all posts
Showing posts with label baseband. Show all posts

Thursday, July 5, 2012

New Redsn0w 0.9.14b2 iPhone 3GS 6.15 Baseband Downgrade Released

Redsn0w 0.9.14b2 Updated To Fix iPhone3GS 6.15 Baseband Downgrade - Download Now

Redsn0w-baseband

The iPhone Dev-Team has just announced Redsn0w 0.9.14b2 which is an update to the existing version of redsn0w that allows users to downgrade the iPad 6.15 baseband. Following the issues with various iPhone3GS users, musclenerd has looked into it and finally released an update to the Redsn0w. The new Redsn0w should fix all downgrade issues and will also help users with broken iPhone buttons to enter DFU mode without having to follow the button instructions.

The iPhone Dev-Team has also provided the revised steps to successfully downgrade iPhone3GS 6.15 baseband. It goes like this:
  1. Connect your iPhone in normal mode, then click “Jailbreak” after redsn0w identifies its model and BB version (you needn’t pre-select the IPSW anymore).
  2. Choose the “Downgrade from iPad baseband” option (you needn’t worry about de-selecting Cydia anymore).
  3. Do a controlled “slide to power off” shutdown of your phone and proceed through the normal DFU ramdisk steps.
IMP : iPhone3GS which were manufactured in early 2011 are not compatible. They have a NOR chip that cannot be upgraded to 6.15 and trying to flash the iPad baseband will brick your device.

DFU IPSW

This version of Redsn0w is much relieving for those iPhone users who have their buttons broken and cannot enter the DFU mode following the general instructions. To enter DFU mode on a broken iPhone:
  1. Launch Redsn0w
  2. Go to   Extras->Even More>DFU IPSW 
  3. Select the ipsw that is currently been signed for your device or for which you have shsh blobs saved.
  4. Redsn0w will create a ENTER_DFU IPSW that you can install with iTunes and once the installation is complete you'll enter into DFU mode.
Redsn0w-Musclenerd

Redsn0w 0.9.14b2 Download Links

redsn0w 0.9.14b2 (OS X)
redsn0w 0.9.14b2 (Windows — run in Administrator Mode)

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Posted on 9:02 AM / 0 comments / Read More

Updated Redsn0w iPhone3GS 6.15 Baseband Downgrade Tool To Release Today - Musclenerd

Updated Redsn0w iPhone3GS 6.15 Baseband Downgrade Tool To Release Today - Musclenerd

Redsn0w-Musclenerd

New Redsn0w Announced : Download

A week ago, Musclenerd from the iPhone Dev-Team confirmed that there is a third kind of flash NOR that caused problems for some iPhone 3GS users when trying to downgrade the iPad 6.15 baseband. This resulted in redsn0w showing that baseband downgrade was successful but when the iPad reboots after baseband downgrade attempt, the baseband was unchanged. After quite a  lot of research musclenerd via twitter confirmed that an update to redsn0w will be released to fix all the errors. He also confirmed that changing the payload would fix the issue.

Today Musclenerd announced over twitter that an updated version of Redsn0w iPhone 3GS baseband downgrade tool would be released. This updated version of redsn0w will work on those devices which were unable to downgrade the 6.15 baseband. However, musclenerd has also confirmed that this version of redsn0w will not support those devices which could not initially get 6.15 baseband ( newer devices ). He mentioned that the revised payload seems to work fine on the devices that were unable to downgrade earlier.

Here is what he said:

Musclenerd-Dev-Team

Musclenerd claims to have found a way to change the IMEI of the iPhone3GS. According to him that was the reason causing iPhone users to have no signal because of no reason and the only plausible reason was IMEI. Changing that would apparently fix the signal issue. Also, IMEI changing is considered as illegal in many countries and is punishable by law. The iPhone Dev-Team will not and never release any tool that allows unethical behavior and beaks any laws. When asked if the IMEI changing tool would be released, musclenerd simply mentioned that it is illegal in many countries to change the IMEA and that it would be a bad idea to release such a tool.

Dev-Team-Musclenerd

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Posted on 8:26 AM / 0 comments / Read More

Saturday, June 23, 2012

Musclenerd Talks About iPhone3GS 6.15 Baseband Downgrade Failure

Musclenerd Talks About iPhone3GS 6.15 Baseband Downgrade Failure

Redsn0w-red-snow

Update : Happy 4th July - Updated Redsn0w To Fix Errors Releasing Today

Earlier this week, the iPhone Dev-Team announced the release of updated Redsn0w that allowed iPhone3GS and iPhone3G users to downgrade their baseband from that of iPad's 6.15.00 to 5.13.04 allowing them to unlock their device using ultrasn0w and getting back the GPS for iPhone3GS users. Redsn0w worked for some but many users faced difficulties in downgrading the baseband. Even after the process completes the baseband for a majority of people was still 6.15 which indicates that Redsn0w actually din't downgrade the baseband to 5.13.04.

Many troubleshooting methods were discussed but eventually there wasn't any optimum solution available to downgrade the 6.15 baseband. Senior members of iPhone Dev-Team even suggested of performing a fresh restore and then reflashing of 6.15 baseband and then attempt to downgrade. This did not help either.

Musclenerd Confirms Redsnow Update

Musclenerd today announced on twitter that he has discovered the reason for baseband downgrade failure in many iPhone3GS. According to him, the reason for failure of baseband downgrade is because of variation in NOR chip which can be changed to handle the differences between the NOR chips. There are altogether 3 types of NOR. Two are very similar and the third one is entirely different which was left out in the Redsn0w. Lastly Musclenerd clearly mentioned that he needs a loaner iPhone3GS which he'll be getting by Thursday and once the testing is done, a redsn0w update will be pushed that will allow all iPhone3GS users to downgrade their baseband without any errors. Hopefully by the end of next week every iPhone with 6.15 baseband will be successfully downgraded.

iPhone3gs_baseband_downgrade

iPhone_6.15-baseband-downgrade

To Wrap Up
  • Reason for baseband downgrade failure was variation in the NOR chips
  • There are 3 different models of iPhone3GS with different Nor chips.
  • Two of them are similar but the third one is entirely different, probably the one left out in Redsn0w
  • Musclenerd confirmed an update to Redsn0w next week after Thursday.
FAQ


Q) How do I check if my iPhone is supported or not
A) If redsn0w 0.9.14b1 din't work on your device, its better to wait until next week for redsn0w update

Q) Will the updated redsn0w support all iPhone3GS models ?
A) Hopefully, yes. After reading RCE of Apple's 3GS flashers for a while, musclernerd observed that there are not 2 but 3 NOR chips.

Q) What is this NOR chip ??
A) NOR flash memory is used to store configuration data in iPhone.

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Posted on 3:51 PM / 1 comments / Read More

Tuesday, June 19, 2012

Fix iPhone3GS 6.15 Baseband Downgrade Errors - Redsn0w downgrade

Fix iPhone3GS 6.15 Baseband Downgrade Errors - Redsn0w downgrade

Earlier this week, the iPhone Dev-Team has released popular jailbreak tool with the ability to downgrade iPhone3G and iPhone3GS baseband from b allowing iPhone users to unlock their device using Ultrasn0w. The problem with 6.15 baseband was that it messed up the GPS settings of iPhone3GS and cause battery drainage to some iPhones.

The recent redsn0w update has helped many iPhone users with iPad baseband 6.15 to downgrade their devices. However, a good portion of iPhone users have reported that they were unable to downgrade their iPhone baseband and that their device was still having 6.15 baseband. Based on the various help articles posted on various sites regarding how to fix the error, we have prepared a guide with all the possible troubleshooting errors and how to fix them.

Update 1 : Musclenerd Confirms iPhone3GS 6.15 Baseband Downgrade - Redsn0w To Be Updated Soon


Update : Happy 4th July - Updated Redsn0w To Fix Errors Releasing Today

How To Fix 6.15 Baseband Downgrade Errors

Q) I have successfully downgraded the iPad baseband but I'm unable to get any signal in my iPhone
A) Some users have reported that after downgrading the baseband, you need to re-install mobile substrate to and then install ultrasn0w to get carrier signal.

Q) I think my GPS is still broken, although I see that the baseband has been downgraded
A) All you need to do is reinstall mobile substrate from Cydia. This has proved to be effective for many users.

Q) I've tried re-installing mobile substrate but still no GPS 
A) You will have to use iFunbox or iFile or iPhone browser to delete the old gps cache, go to this path

/var/root/Library/Caches/locationd


and delete locationd folder. Reboot and retry and it should work.

Q) Activation ? I'm not using the sim that came along with the phone! Does that mean I cannot activate and downgrade 6.15 baseaband ?
A) We'll you can use sam to activate your iPhone. Technically SAM provides the same activation as an active sim card. The whole point is to make sure that baseband is "started" before downgrade.

Q) I'm unable to downgrade my iPhone's 6.15 baseband at all. I've tried it several times just to be even more dissatisfied.
A) This is going to be a long turn around. There are many people who have reported that they were unable to downgrade the baseband at all. Here are few tips that you need to follow while performing the downgrade
  • Restore your iPhone to 5.1.1(fresh restore). Take a backup of your data and then perform a clean restore.
  • Flash iPad 6.15 baseband after the restore.
  • After flashing the iPad baseband make sure you activate your iPhone by entering the sim card.
  • After activating your iPhone3GS or 3G with the sim, power off your device by holding the power button and then sliding on the screen. Yes! you need to shut down this way to avoid problems with ramdisk.
  • After following the steps above, follow this guide to downgrade the baseband and it should work.
Q) I'm tired! I even lost my signal - I don't care about downgrading 6.15 baseband and I'm fine with it. How can I get carrier signal back??
A) User redsn0w and flash 6.15 baseband again to get back carrier signal

Tip :  Windows users can try this method : Copy redsn0w.exe to the following location : 
C:Program Files\CommonFiles\Apple\Apple Application Support
(This actually is not a new trick, there was time when ppl were advised to use Blackra1n the same way by copying it to Application support folder)

To sum up this is the procedure you should ideally follow:
  • Fresh Restore
  • Fresh 6.15 Baseband Flash
  • Activate
  • Attempt Downgrade
Revised Steps For Successful Baseband Downgrade
Step 1 : Use iTunes to restore stock Apple iOS 5.1.1 (9B206) IPSW.
Step 2 :  Run Redsn0w 0.9.14b1.
Step 3 :  Select Clear Cache from "Extra's > Even More" page.
Step 4 :  Select IPSW from "Extras" page and select the location of your iOS 5.1.1 (9B206) IPSW.
Step 5 :  Power Down the iPhone (slide to power off).
Step 6 :  Click Jailbreak and tick only the "Install Cydia" option.
Step 7 :  Enter DFU mode and allow Redsn0w 0.9.14b1 to Jailbreak your iPhone and install Cydia.
Step 8 :  Re-Run Redsn0w 0.9.14b1.
Step 9 :  Select Clear Cache from "Extra's > Even More" page.
Step 10 :  Select IPSW from "Extras" page and select the location of your iOS 5.1.1 (9B206) IPSW.
Step 11 :  Power Down the iPhone (slide to power off).
Step 12 :  Click Jailbreak and tick only the "Install iPad baseband" option.
Step 13 :  Enter DFU mode and allow Redsn0w 0.9.14b1 to install the iPad baseband.
Step 14 :  When the iPhone reboots, either restore from iTunes backup or create a new phone to get access to Home screen and Apps.
Step 15 :  Run Cydia, wait for it to update and then install Ultrasn0w.
Step 16 :  Make sure the iPhone is activated and working with iPad baseband, e.g. make a test call.
Step 17 :  Re-Run Redsn0w 0.9.14b1.
Step 18 :  Select Clear Cache from "Extra's > Even More" page.
Step 19 :  Select IPSW from "Extras" page and select the location of your iOS 5.1.1 (9B206) IPSW.
Step 20 :  Power Down the iPhone (slide to power off).
Step 21 :  Click Jailbreak and tick only the "Downgrade from iPad baseband" option.
Step 22 :  Enter DFU mode and allow Redsn0w 0.9.14b1 to downgrade your iPhone baseband.

If any method works, please do mention in the comments section.

Update : Happy 4th July - Updated Redsn0w To Fix Errors Releasing Today

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Posted on 10:03 PM / 7 comments / Read More

Monday, June 18, 2012

How To Downgrade iPhone3GS 6.15 Baseband Using Redsn0w

How To Downgrade iPhone3GS 6.15 Baseband Using Redsn0w


redsn0wbbdowngradeThe iPhone Dev-Team as promised has released an updated version of redsn0w that will allow iPhone3GS and iPhone3G users to downgrade their device's iPad baseband 6.15 which was performed in order to unlock the devices. This however casued certain unexpected issues like battery drainage and loss of GPS in iPhone3GS. It was mandatory to flash iPad's 6.15 baseband on iPhone3G and 3GS as that was the only unlockable baseband that could be unlocked using iPhone Dev-Team's Ultrasn0w unlock. Musclenerd made an announcement earlier that a tool will be released in future that would allow the possibility of downgrading iPhone3GS and 3G basebands to an unlock-able version.

Having said that, today the iPhone Dev-Team proudly announced the release of updated Redsn0w that allows the users to downgrade their basebands. Since playing with basebands is not cool, we decided to prepare an easy to follow instructions guide to downgrade 6.15 baseband.

Update 1 : Musclenerd Confirms iPhone3GS 6.15 Baseband Downgrade - Redsn0w To Be Updated Soon


Update 2 : Happy Independence Day - New Updated Redsn0w Releasing Today

Steps To Downgrade iPhone3GS & 3G 6.15 Baseband


Step 1 : Download the latest version of Redsn0w and the current firmware of your device

Step 2 : Extract the contents of the Redsn0w archive that you just downloaded.

Step 3 : Connect your iPhone3GS or 3G and Launch Redsn0w.
(Windows7 users should select the option of running as administrator by right clicking on redsn0w application and then selecting the option - Run as administrator)

Step 4 : In the redsn0w, go to extras menu

redsn0w-baseband-downgrade

Step 5 : From the extras menu, select 'Select IPSW' option

how-to-downgrade-6.15-baseband

Step 6 : Navigate to the folder where you download the current firmware of your device and select the firmware and click open.

Step 7 : Click Ok to confirm the firmware selection
iPhone_baseband_Downgrade

Step 8 : Select 'Yes' if your iPhone3GS is newer model or else select 'No'
Put your device into DFU mode
DowngradeiPhone6.15baseband

Step 9 : Now go back to the main menu and select the option 'Jailbreak'
Baseband_downgrade

Step 10 : The jailbreak process will begin and then Redsn0w will show more options where you need to select 'Downgrade From iPad Baseband' and then click next.
basebanddowngradetutorial

Step 11 : Put your device into DFU mode
  • Power off the device completely
  • Hold power button for 3 seconds
  • without releasing the power button, press and hold home button for 10 seconds.
  • Now release the power button and continue holding the home button .

Redsn0w will use limera1n to exploit your device to enter into pwndfu mode. Once done, continue with the steps. Redsn0w will now start processing your device's build

Downgrade-6.15-baseband

Step 12 : Redsn0w will now inform you that the rest of the process will happen in your device.

Step 13 : Your device should show some scrolling text and then you should be able to see the pineapple logo indicating 'Flashing Baseband (don't interrupt). Its serious, don't unplug or do anything stupid or you'll never be able to use your device again.

iPhonebasebanddowngrade

Step 14 : Once done, your iPhone will reboot and you should have 5.13.04 baseband.


Done!


If you have any questions or facing any issues, post them in the comments section


Update 1 : Baseband Downgrade Troubleshooting Guide

Update 2 : Revised Steps For Successful Baseband Downgrade


Step 1 : Use iTunes to restore stock Apple iOS 5.1.1 (9B206) IPSW.
Step 2 :  Run Redsn0w 0.9.14b1.
Step 3 :  Select Clear Cache from "Extra's > Even More" page.
Step 4 :  Select IPSW from "Extras" page and select the location of your iOS 5.1.1 (9B206) IPSW.
Step 5 :  Power Down the iPhone (slide to power off).
Step 6 :  Click Jailbreak and tick only the "Install Cydia" option.
Step 7 :  Enter DFU mode and allow Redsn0w 0.9.14b1 to Jailbreak your iPhone and install Cydia.
Step 8 :  Re-Run Redsn0w 0.9.14b1.
Step 9 :  Select Clear Cache from "Extra's > Even More" page.
Step 10 :  Select IPSW from "Extras" page and select the location of your iOS 5.1.1 (9B206) IPSW.
Step 11 :  Power Down the iPhone (slide to power off).
Step 12 :  Click Jailbreak and tick only the "Install iPad baseband" option.
Step 13 :  Enter DFU mode and allow Redsn0w 0.9.14b1 to install the iPad baseband.
Step 14 :  When the iPhone reboots, either restore from iTunes backup or create a new phone to get access to Home screen and Apps.
Step 15 :  Run Cydia, wait for it to update and then install Ultrasn0w.
Step 16 :  Make sure the iPhone is activated and working with iPad baseband, e.g. make a test call.
Step 17 :  Re-Run Redsn0w 0.9.14b1.
Step 18 :  Select Clear Cache from "Extra's > Even More" page.
Step 19 :  Select IPSW from "Extras" page and select the location of your iOS 5.1.1 (9B206) IPSW.
Step 20 :  Power Down the iPhone (slide to power off).
Step 21 :  Click Jailbreak and tick only the "Downgrade from iPad baseband" option.
Step 22 :  Enter DFU mode and allow Redsn0w 0.9.14b1 to downgrade your iPhone baseband.


Update 1 : Musclenerd Confirms iPhone3GS 6.15 Baseband Downgrade - Redsn0w To Be Updated Soon 


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Posted on 2:17 PM / 32 comments / Read More

Redsn0w iPhone3GS 6.15 Baseband Downgrade Released Download Links

Redsn0w iPhone3GS 6.15 Baseband Downgrade Released Download Links

howtodowngrade6.15basebandAs we have mentioned in the earlier post that iPhone Dev-Team will be releasing 6.15 baseband downgrade tool, most probably in the form of redsn0w tonight. The time has come and Redsn0w has been updated with the functionality of downgrading iPhone 6.15 baseband!

The iPhone Dev-Team has just announced the release an update to redsn0w that will allow iPhone3G and iPhone3GS users to downgrade their iPad 6.15 baseband which they were advised to flash in order to unlock their device using ultrasn0w unlock.

iPhone3G and iPhone3GS users who upgraded their devices beyond 4.2.1 had no other option to unlock their devices using ultrasn0w but to flash iPad's 6.15 baseband that surprising was unlock-able using iPhone Dev-Team's ultrasn0w. Currently all iPhone3G and iPhone3GS are unlock able by using ultrasn0w after flashing iPad's 6.15 baseband. This release of Redsn0w will allow all iPhone3G and iPhone3GS users to downgrade their 6.15 baseband to an unlock-able one, probably to 5.13.04.

Muslenerd has just tweeted that he's running some last test and will release the updated redsn0w in an hour.

Redsn0wBasebandDowngrade.
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Posted on 12:32 PM / 2 comments / Read More

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