Successfully downgraded iphone 3gs without shsh blob(tested sulotion)

[hariskt]

Originally Posted by I_sumo

itunes version must not be equal to 10.5 ! If wrong pl correct me.

I noticed one more thing - you have not changed the base band of your phone. Phone is still on valid modem.

HERE most of the unlockers are not on genuine factory modem firmwares.
ALL have updated or SAY all were forced to change the modem bb to ipad bb v6.15 to achieve ultrasn0w unlock.

BR

now what i remember when i was doing this procedure the modem version was original means not ipad Baseband.....

[mp3hot]

Ur video shows ur on 4.3.3 and u got shsh backed up of other versions ...

this can be easily done if u have SHSH dump of 4.3.3 on ifaith . so ur video proves nothing .

[hariskt]

Originally Posted by mp3hot

Ur video shows ur on 4.3.3 and u got shsh backed up of other versions ...

this can be easily done if u have SHSH dump of 4.3.3 on ifaith . so ur video proves nothing .

yes thats true but see that images showing i am checking available shsh with my ECID number even you can check it..thanks because ifaith will save shsh to he server..thanks buddy

[bhcrow]

Like i said with this metod i did manage to restore my iphone 3gs to lower version. But i have following problem:

- i can turn it on only with redsn0w JUST BOOT TETHERED, othervise its on recovery mode with black screen
- when i turn it on after few minutes iphone turn itself off and goes to recovery/dfu mode again so i cant turn it on again. In that mode i cant even boot it no more with redsn0w till i open it and disconnect its mainboard from battery for few seconds. I f i dont do that when i go to Just boot tethered i have only white screen after its turned on.

[mp3hot]

ok i didnt know ifaith would save shsh to tinyumbrella ,,, ok so ur solution doesnt work great caz after few mins fone would go off ... so i assume in those minutes u have u can dump shsh and build a custom firmware and restore it without having any problems ?

[bhcrow]

i tried, but somehow my iphone is not detected in tinyumbrella altough itunes sees it normally. with ifaith there is some error on thirs stage of saving shsh (i dont remember what that third option was).
i have Cydia on it now, do yout think that i can via Cydia now save shsh and try to restore it again with custom firmware?

[hariskt]

no that way you cannot save shsh it not working properly..
i just want to know that did you update your baseband to ipad baseband 6.15???

[Mogkupoppo]

There are mc137ll with old boot. This will not work on 3GS with new boot.

[bhcrow]

i belive i now have my iphone 3gs problem SOLVED and here is how

i manually saved my shsh in tinyumbrella. On iFaith i saw some errors on black screen and among that also saw ECID numbers, so i wrote it down and enter it in TinyUmbrella. Beside that i belive there are other options to find ECID number

After that i put y iphone in DFU mode with redsn0w, started TSS server on tinyumbrella and restore it again to 4.1 version for which i had shsh saved.

I restored ti succesfully and my iphone right after that turned on. I tried restarting it and goes ok.

P:S: Yes, ia had y baseband changed before to 6.15

[KickAssGunn]

Dude Bro this worked I'm on 3.1.3 i only had blobs for 4.1 and 5.1.1 you saved me i have saved blobs for all firmwares available for my device now i can downgrade my iPhone 3gs anytime THANK YOUUUUUUUU :c ool:

3gs no need Tinyumbrella and redsnow just use ireb pot ur phone in duf mod and restore with iPhone2,1_4.1_8B117_Custom_Restore it 100% done






host file 10000000000000000% working




pyright (c) 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP ad******* to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host

127.0.0.1 localhost

[unlockers555]

Originally Posted by hariskt

Hi guys i have downgraded iphone 3gs 4.3.5 to 4.2.1 and 4.3.3...without shsh blob...let me explain exactly what i did....

1. Get the Latest Redsnow

2. Get the latest Tinyumbrella

3. Put your iphone in DFU Mode.

4. Then open "Redsnow" and put your phone in "Pwned DFU" mode

5. After that open "Tinyumbrella" and choose the button "Start TSS Server"

6. Now restore your phone with any version of custom Firmware (4.2.1 and 4.3.3 Tested and working)

7. But you can see the result blackscreen and itunes will say to Restore again

8. Now just open "Redsnow" again and try jailbreaking... then choose "Install Cydia" wait until finishing the jailbreak.

9 After that you can see you phone will work perfectly without any problem...

Regards
Haris

work for me

[jhames47]

i think this is fake solution

try this in may own ways but, its not working.