Downgrading iPhone 4 from iOS 5 to 4.3.5 (Error 1604)

**iYeow** · 08-30-2011, 06:48 PM

I think the reason why you can't restore is because of baseband does not match 4.3.5 bb

**Simon** · 08-30-2011, 06:53 PM

If that were the case he would get 1013 or 1015 error Yeow.

**iJasonTATE** · 08-30-2011, 07:00 PM

I would suggest stop worrying about it because it seems like just about everyone is stumped...

**iYeow** · 08-30-2011, 08:37 PM

Originally Posted by Simon

If that were the case he would get 1013 or 1015 error Yeow.

If only he uses TU, he is only restoring to stock without TU. He said he doesn't have 4.3.5 blob..

If he uses TU using TSS server to restore to 4.3.5, he should error at 1013, fix recovery 43 may kick it out.

**Simon** · 08-31-2011, 06:09 AM

1604 is a whole different ball game yeow. Nothing to do with SHSH. More to do with the phone not kicking into the right mode during the restore for whatever reason.

**iJasonTATE** · 08-31-2011, 06:21 AM

Could it possibly some sort of hardware failure? Or is that the lower error numbers.

**Simon** · 08-31-2011, 06:52 AM

I dont think it is hardware related but it could be I guess.

Maybe letting the battery drain completely and then giving it another shot may help.

**iJasonTATE** · 08-31-2011, 07:19 AM

Originally Posted by Simon

I dont think it is hardware related but it could be I guess.

Maybe letting the battery drain completely and then giving it another shot may help.

Very good idea.

Thread: Downgrading iPhone 4 from iOS 5 to 4.3.5 (Error 1604)

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