How to Update iPhone 4 to 4.3.1 Preserving 01.59.00 Baseband

[howard1]

<- <- <- WARNING -> -> ->

Updating to 4.3.1 using this method will preserve the baseband but will cause you to only have one bar of signal. This apparently is only aesthetic (my phone makes calls and sends texts just fine) but you should hold off from using this method unless you dont care about that.

MuscleNerd has tweeted that this issue is being worked on and the fix may be released along with the updated Ultrasn0w, or as a seperate package in cydia.

Picture of my iphone for proof:

Read the warning and carry on if you so wish

You can follow this guide to update your iPhone 4 to iOS 4.3.1 without updating to the new baseband, you will preserve the unlockable baseband 1.59.00 to be able to unlock your iPhone 4 with ultrasn0w 1.2, when it is updated.

Note: This ONLY Works with the iPhone 4!

Step 1: Download TinyUmbrella from here Also make sure to download the iPhone 4 iOS 4.3.1 which you can find here.



Step 2: Double click the downloaded TinyUmbrella.exe file.



If you get a Windows Firewall notification, check both boxes and click Allow Access.



Step 3: Make sure the device is connected, and Umbrella has detected the type of device and its firmware.



**If you haven't already saved your iOS 4.3.1 SHSH blobs then click "Save SHSH". Make sure they successfully save before continuing.

Step 4: Hit "Start TSS Server" and make sure you receive no errors.

Once The TSS Server is "running" successfully, umbrella will kill iTunes. Leave TinyUmbrella Open. You can double check to see if the TSS server is running under the Log tab.

If you do receive an error, DO NOT continue. Your restore will not work if the TSS server cannot be started.

Step 5: Open iTunes by doubling clicking its icon.

Hold down the Shift key and click Restore



Select your iPhone 4.3.1 firmware file from the popup window that appears and click Open.



Click Restore to begin restoring your device.



Step 6: iTunes should give you error 1013. This is what we wanted, as it notes the baseband has not updated Click Ok and close iTunes.



If you get a 16XX error then try entering DFU and go to step 5.
If your restore does NOT end in a 1013, it means your baseband was updated. This is likely because you did not have the TSS server running OR you updated without TinyUmbrella OR you are working with a device OTHER than iPhone 4.

Step 7: Place your iPhone into DFU mode by holding down both the Power and Home buttons for ten seconds, then release the Power button and continue holding the Home button for another 5 seconds.



Step 8: Fix Recovery in TinyUmbrella is currently not working. Download the FIX RECOVERY file from the blog to fix recovery on 4.3.1. Extract the file and double click on fixrecovery43.exe. A command prompt will open, and the program will go through the process. During this time, you will notice scrolling text on your iPhone 4.

If you get an error when opening the recovery fix then you may need to google and download zlib1.dll. Or grab it here.

Step 9: Your iPhone will now be on 4.3.1 with the 1.59.00 baseband!

Original Text

[Mr.x]

Does the Sn0wbreeze 2.5 preserve baseband mode do same thing with signal?

[howard1]

I believe it does, but i havnt tested

[kinghuff]

when using the tinyumbrella tss does host file still need to point iTunes to
74.208.10.249 gs.apple.com

[Mr.x]

Originally Posted by kinghuff

when using the tinyumbrella tss does host file still need to point iTunes to
74.208.10.249 gs.apple.com

tinyumbrella does it all for you.

[kinghuff]

nice thanks

[mrjai66]

how do you jb after using tiny umbrella? redsnow ? also if i use redsnow after this will it change my baseband from 1.59 to the new one?

[x.Orville.x]

excellent it works thanks

[otosan]

Hi howard, last time on 4.2.1, i can do this trick, but i press "Shift + Update" , not restore, it make my phone still keep all the app, from both cydia n appstore, i only need to re-jailbreak it using redsnow after update.

does this trick will working on 4.3.1 also?

---------- EDIT ----------

btw, do u actually unlock ur phone?

so actually ultrasn0w working on 4.3.1, only the signal bar "deceiving" us? is it?

[howard1]

I used redsnow to jailbreak after.
Just hit shift & restore and then sync a backup to get all ur stuff back. I personally just set up as new and then install every thing back on. I never heard about a shift and update.
I dont actually use the unlock, i just like to keep an unlockable baseband just incase

[Faisal343]

Thanks...

[YakorL]

Originally Posted by otosan

Hi howard, last time on 4.2.1, i can do this trick, but i press "Shift + Update" , not restore, it make my phone still keep all the app, from both cydia n appstore, i only need to re-jailbreak it using redsnow after update.

does this trick will working on 4.3.1 also?

---------- EDIT ----------

btw, do u actually unlock ur phone?

so actually ultrasn0w working on 4.3.1, only the signal bar "deceiving" us? is it?

It is not recommended using shit+restore, cuz like chpwn, he got ssh problems using update. but yes, that'll work.

and yes, u actually unlock the phone, but the signal bars will show only 1, no matter how strong is the signal.

[Mr.x]

Originally Posted by kinghuff

nice thanks

there is thanks button feel free to use.

[llj143]

at first i did sn0wbreeze but experience some problems.. i follow this guide.. jailbreak with redsn0w and everything works well and then followed this guide for unlock

iH8Snow MftGuy release Ultrasn0w FIXER for 4.3.1 - SiNfuL iPhone

[geep]

thanks for the tutorials!

[chrismak1118]

thx for share^^

[romulu-s]

great job.thanx

[Mr.x]

OK can some one answer if i update my 4.1 that is on baseband 01.59.00 with Sn0wbreeze or any method can the 1 signal bar issue be removed. After going to 4.3.1 I am not using Ultrasnow due to fact i do not need to unlock just want to preserve to maintain phones value for now.

So any advice please let me know.

[howard1]

I was hoping they wud release the one signal bar fix as a seperate package too. But no u will have to install ultrasn0w to get rid of it, or just deal with it

[FALYA]

thx i"ve been looking for this way for a long time