Discuss [HowTo] from 1.1.2/4.6BL/04.02.13_G to 1.0.2/3.9BL/03.14.08_G at the iPhone "2G" (Rev. 1) - Hackint0sh.org; Because a large number of people have experienced problems with their iPhone H/W unlocks, using ...
[HowTo] from 1.1.2/4.6BL/04.02.13_G to 1.0.2/3.9BL/03.14.08_G
Because a large number of people have experienced problems with their iPhone H/W unlocks, using the current method, I propose the following method, one that is less likely to result in a bricked iPhone.
1. downgrade your iPhone to 1.0.2, by-pass at&t, and jailbreak. (if you have an iPhone that does not have a baseband, or Wifi, IMEI, etc., then you will need to uninstall any version of iTunes greater then 7.3.x, and then d/l iTunes 7.3.x from filehippo.com and install it accoridngly. use iBrickr to initiate the 1.0.2 restore process, using this 7.3.x version of iTunes. If it still does not restore, then you will need to borrow another iPhone that has a good baseband, and perform a little trick that fools iTunes, and allows the the iPhone to be restored to 1.0.2).
2. follow the iUnlock.no instructions at http://iphone.unlock.no/bootloader_downgrade.htm, and when you get to the TESTPOINT WORKS: 55, stop!
if you are having problems with the above test points / software commands, simply reboot(do NOT RESTORE or UPDATE... merely and ONLY reboot by holding down both iPhone buttons for a few seconds, and sliding the red slider) and try again. you can keep trying over and over until you get it right. but for the love of your iPhone, do NOT RESTORE or UPGRADE.
This iUnlock.no tutorial says:
When done(with the above TESTPOINT WORKS:55) to run bbupdater -v, but ignore that and go to next step.
This is NOT advisable, nor is it advisable to restore to 1.1.1 or 1.1.2 without FIRST making sure you have a downgraded baseband on your iPhone. thus, now amend the process with the following instructions:
3. hard boot your iPhone(not restore or upgrade, just a reboot holding down both iPhone buttons for a few seconds, and then sliding the red slider to off, and then pushing top button to turn back on).
4. Download these files:
download the following files and copy onto your iPhone into the usr/bin folder:
nor(make sure its the first_0x20000_of_nor_3_9)
secpack(make sure its secpack040313)
(perhaps iUnlock.no would be so kind as to create both a .pxl for iBrickr and .zip file for direct d/l, so people without WiFi/Installer can more easily obtain these files)
5. in ulctl:
-unload -w com.apple.CommCenter(this file may already be unloaded from the previous iUnlock.no process, in which case ignore).
-stop com.apple.mobile.lockdown(this file may not unload or stop, in which case ignore/keep trying).
6. in terminal:
-./ieraser (-> iphone does something, read the results)
-./bbupdater -f *.fls -e *.eep -> firmware is flashed
7. now run bbupdater -v and see what it says. if you have 3.9 and 03.14.08_G, you are golden! now you can reboot your phone on last time, and go back into terminal app, and re-type run bbupdater -v and check it one more time, and once you are absolute certain it is at bootloader 3.9 and modem firmware 03.14.08_G, then you can proceed to the next step.
8. RESTORE your iPhone. hold down both top and front iPhone buttons for 25 seconds, and then click ALT(mac) or SHIFT(pc) and select firmware file 1.1.1 on your local hard drive, and proceed with the restore. your iphone should restore to factory settings without a single error.
9. use the *#307# method to WiFi jailbreak your freshly 1.1.1 firmware restore iPhone, and then proceed to install BSD, anySim etc., and then if you wish to bump up to 1.1.3, follow nate's xp or osx installation instructions.
word of warning: if you intend to upgrade to 1.1.3, do NOT install any more Installer app 3rd party software then is needed to do the upgrade, otherwise your iPhone will have problems. you cna install all of your 3rd party software after you've upgraded to 1.1.3.
I need secpack040313 and nor...where can I download them?
I want to confirm, is this guide intented to downgrade 1.1.2 OTB iPhones? If so, can somebody confirm if it acually works? Does this downgrade the BL? and finally, if i understood correctly, this method still requires to open to iphone and use the niddles? Right?
Last edited by hal9000mx; 01-27-2008 at 10:17 AM.
Please can you tell us how this trick can be executed?
Originally Posted by ericjarvies
itunes ver 7.3 says cannot be used because it requires Itunes 7.4 or later, any tips on a work around to this.
also there are 3 versions of itunes avail at filehippo:
Which one should we install and how do we get it to work with the iphone and avoid upgrading to 7.4 and higher?
eric, thank you for posting this guide.
I must say I did not yet try it out, and I was curious if your situation was similar to mine. Right now, I have my brick in 1.0.2 activated and jailbroken, no wi-fi, bluetooth, imei, etc. Whenever I run ienew, it stops at "Waiting for data", while iunew freezes at "Spamming AT, waiting for a respone". I probably tried 30-40 times, changing permissions, loading/unloading the commcenter, etc with the same result. Only once, I had a different result, there was one more line after "Spamming AT.." and that was "Attempting to read...0" and it froze there.
So I'm curious whether you had a similar situation, and how exactly you got over it? What permissions did you change? Did you unload the commcenter with "unload -w" or just "unload"? Did you run ienew after every restart, or went directly to iunew? etc...
Last edited by RaduQ; 01-28-2008 at 12:31 AM.
Originally Posted by RaduQ
I am in the same situation. my phone is 1.1.2 OTB...now in 1.0.2 and same shit again
ienew - can't write data
iunew -> spamming AT (it did not even attemp to read c0)
All files are correct with correct permissions.
Please please help us.
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