Cant successfully downgrade iPhone 4 to 4.3.0... unknown error (1) please help

[reznor9]

The only SHSH files I have are for iOS 4.3.0 and 4.3.5

I want to downgrade to 4.3.0... Im using Tiny Umbrella to keep from updating the baseband which is currenly 5.11.00...
now it seems to finish the restore process then it reboots and sends me to the plug into itunes screen.. and iTunes gives me an unknown error (1)...

I used tiny umbrella to attempt to exit recovery... same result... I then tried to go into DFU and fix restore and it does the same thing.

I tried last to run redsnow... same result.

HELP!

I can successfully install iOS 4.3.5 and keep the old baseband.. but I cant get ultrasn0w to work... any suggestions?

[iYeow]

Ultrasn0w has not been updated to work with IOS 4.3.5 for Ultrasn0w to unlock your 05.11.xx. Wait for the release of IOS 5 first.
There is a warning message for unlockers not to go past IOS 4.3.3 who needs unlock not to update past 4.3.3

[reznor9]

is there a way to downgrade back to 4.3.0?
using tiny unbrella
Ive been getting an unknown error (1)...
any tips?

Thats the last SHSH blob I got before 4.3.5 came out.

[iYeow]

Did you put your iPhone into dfu mode prior to restoring to 4.3

[reznor9]

Yes. I also tried going down to 4.2.7... Same error (1)

[iYeow]

Oh, is this a verizon iPhone

You are confusing me now, only verizon iPhone has 4.2.7

[reznor9]

I'm sorry. Your right. I meant to write 4.2.1.
Sorry for the confusion. It is a GSM iPhone.

[iYeow]

apple is signing 4.1, so go ahead and restore to 4.1 , see if you are getting the same error

[xboxbml]

But this is ip4...right?....apple signing 4.1 for ip4? Thought was just 3GS...

[iYeow]

Then No, do a reboot of your pc, restore to stock 4.3 using TSS server, you should error at 1013

[xboxbml]

Also, if u have blobs for 4.3, were you jb'd on 4.3? If so either way, u should download and run TinyUmbrella to locally save blobs. In the advanced tab there is checkbox for request shsh from cydia. Run save shsh blobs on phone with that unchecked, then checked. See what u really have!

[iYeow]

You can do post 11, just to make sure you have retrieved all shsh blobs from cydia

[reznor9]

I finally got a restore to 4.2.1

but now my carrier settings menu is missing from the general > network > menu...
so I cant setup my internet or mms.
wtf

I activated using an old ATT sim but Im unlocked via ultrasn0w to use my tmobile

Ive tried multiple things. but nothing seems to work
Ive done the pushfix reset carrier settings bundle..
the APN Edit package from bigboss wont install...
And Ive reset network settings and rebooted numberous times...
also ejected sim a bunch too.. any ideas?