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 Updated to 2.2.1, call and reception issues, iPhone 3G

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chrisl_57
post Feb 5 2009, 08:08 PM

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There is possibly a way to downgrade to 2.2 from 2.2.1 with the baseband downgraded too.
Go to this site to read about how to do it.

http://www.iphonehacks.com/2009/01/stepbys...irmware-22.html

Many of them got stuck on how to restore the phone in recovery mode. The video will demo & explain how to do it. You have to follow the sequence in the video strictly.

http://www.youtube.com/watch?v=xO1jiPE9nnY
Hope this help to get your phone working.

The other way is to get the Gervey SIM unlock card for firmware 2.2. It has been proven to work.
chrisl_57
post Feb 5 2009, 09:13 PM

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QUOTE(beavis68 @ Feb 5 2009, 09:00 PM)
can downgrade to 2.2 from 2.2.1 but baseband still can't be downgraded....."bad news"........

"iPhone 3G users: The Dev team should soon release updated versions of their PwnageTool and QuickPwn tools to jailbreak your iPhone 3G running firmware 2.2.1 or  or use this guide to first downgrade to firmware 2.2 and then jailbreak it.  But since the latest firmware updates iPhone 3G's baseband to 02.30.03, you will not be able to unlock it even after downgrading to firmware 2.2. You will need to wait for some time for the Dev team can unlock baseband 02.30.03."

baseband is like one way street..... only can go up but cannot go down..... so TS can use d Grevey Sim Unlocker n wait for d yellowsnow to update...
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Not true. Many of the guys have actually got the baseband downgraded to 2.28 from 2.3.03.
The site is:
http://www.iphonehacks.com/2009/01/stepbys...irmware-22.html
This is what was quoted and there are also many post showing that some have successfully follow the step and downgrade to 2.2 incl downgrading the baseband.

------ post from the site ------------------
One of our readers, ezio-xb just commented on our step-by-step guide to downgrade from iPhone firmware 2.2 to 2.1 to tell us that he was able to successfully downgrade his iPhone 3G back to firmware 2.2 and jailbreak it. We have updated the guide to downgrade from iPhone firmware 2.2.1 to firmware 2.2
------------------------------------

Have not tried this myself but I am using the 2.2 SIM unlock card & it works.



chrisl_57
post Feb 6 2009, 01:16 AM

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QUOTE(frozzbyte @ Feb 6 2009, 12:02 AM)
@chrisl_57
Stop giving false info/hope to the TS.

I've read the link that you gave over and over again and not a single line said you can downgrade the baseband back to 02.28.00. All they were discussing was downgrading the FIRMWARE and not the BASEBAND. Get the fact straight first before giving hope to people. If it was possible, won't the dev team already given the solution to it?

FIRMWARE and BASEBAND are different. From my understanding, most of them in that site want to JAILBREAK their phone and not to UNLOCK. Thats why they want to downgrade the firmware from 2.2.1 to 2.2 since dev team has not release Pwnagetool or Quickpwn for 2.2.1 at that time.
The bolded sentence shows the reader downgrade the firmware to jailbreak it and not to unlock it. I assume most of them are using AT&T hence there no need for an unlock, they were just concerned about jailbreaking. But our TS is trying to UNLOCK his phone which is not possible with 2.2.1 baseband (02.30.03) at this moment.
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The whole article talk about baseband downgrade. Notice that all the guys who did that mentioned iPhone 3G 2.2.1 firmware. This is why the article specifically mentioned that they have managed to downgrade the baseband from 2.3.03 to 2.28.
It is not false hope when many of them have done it.

One of our readers, ezio-xb just commented on our step-by-step guide to downgrade from iPhone firmware 2.2 to 2.1 to tell us that he was able to successfully downgrade his iPhone 3G back to firmware 2.2 and jailbreak it. We have updated the guide to downgrade from iPhone firmware 2.2.1 to firmware 2.2.
and
One of our readers, ezio-xb just commented on our step-by-step guide to downgrade from iPhone firmware 2.2 to 2.1 to tell us that he was able to successfully downgrade his iPhone 3G back to firmware 2.2 and jailbreak it. We have updated the guide to downgrade from iPhone firmware 2.2.1 to firmware 2.2.

He commented:


"FYI; I just made the BIG mistake to update my Jailbraked 3g-iPhone with 2.2.1 (with the Safari blah blah update) which totally mess up my phone and put it back to "normal".
I found your guide and I downgrade back to 2.2 using the ...shift+restore option that you suggest for previously firmware in the upper article (!than you!)
After all the process and the long restore point I was able also to Jailbreak and now works as it was before and just need to fix my icons."



Notice the word 3G in the article that was first downgrade & jailbreak. ezio-xb initially has a non-working iPhone 3G when he mistakenly upgrade to firmware 2.2.1. The dead iPhonei s now working for him.

illjuan3@yahoo.com... posted a youtube video of the exact sequence of doing the restore & users skp, dm0ney, effwg etc... and many of the posting in the same page showed that they have manged to downgrade & un lock the iPhone 3G.
Even in the posting for te video in Youtube at least 1 of the recent posting thank the person for the intructions to solve the 2.2.1 downgrade probl

SO THIS IS NOT FALSE HOPE. AT LEAST THEY TRIED AND GET IT WORKING.
Just to let you know - I have unlocked, jailbreak and customized 5 iPhone 3G and 8 iPhone 2G over the last 4 months for friends & relatives for free. I am also a registered Apple iPhone Applications developer on iPhone applications as a part-time basis and also work on cracking some of the paid applications on Cydia & Applestore for my own personal use.



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