SAM and Error 28

[iDonev]

SAM and Error 28 (Update: FIXED!)

I was doing a downgrade for a friend today and got stumped when activating with SAM.

He was going from 5.1 to 5.0.1 using iFaith.

Everything was well and good until we got to the part where you need to backup and then restore the activation. The backup reported success, but the restoration gave an error which I see for the first time:

I tried iPusher and did not get push notifications.
Any suggestions?

Additional info:
Device: New Bootrom 3GS
BB: 06.15.00
Tools used: iFaith 1.4.1.0 & redsn0w 0.9.10b6

Update: Fixed! The culprit was redsn0w 0.9.10b6. I did the whole procedure with redsn0w 0.9.10b5 and had no trouble!

 

[zanst]

hi, plz can you tell me how did you fix it by steps thank you so much i have same error plzzzz thank you so much

 

[iDonev]

If you're on 5.0.1 jailbreakng with redsn0w 0.9.10b5 will fix the issue (already written in the update)

 

[zanst]

thank you so much for your answer me, but it doesn't work for me I have same issue same error when I restore. doesn't work same error 28, I hope can fix it, can you tell me more detail thank you so much.

 

[iDonev]

What is your device, iOS version and jailbreak tool version?

 

[zanst]

iphone 3gs 5.0.1 new bootroom 06.15.00 , i was downgrade 06.15.00 to 05.13.04 also doesn't work , but now its 06.15.00 bb, , firwamre i created by iFaith v1.4.2 , and i used redsn0w 0.9.10b5 to jailbreak , thank you
i alredy fix it by another thanks