4.1 baseband 01.59.00 iphone 4 want to go to ios5

[americaroma]

Hello all and first of all im sorry if im posting in the wrong place...

I have my iphone 4 jailbroken on 4.1 with a baseband of 01.59.00 and its unlocked to be used with telcel (mexican company)...

So basically what i want to do is go to ios5 and if i read right with my baseband im able to keep the unlock?

I havent been in the jailbreak scene for a while so i want to know if im right or wrong on the steps i need to do...


1.I have a mac and i believe i have to use RedSn0w 0.9.9b7 to first get a custom ISPW created that does not update baseband am i right?

2. Use itunes and click option while clicking restore or update?

I kind of tried to do that a while ago and itunes was giving me an error which i cant recall rightnow so i gave up...

But i would appreciate any tips or steps i should take to go to ios5 and keep my unlock on my iphone 4....

Thanks in advance

[iYeow]

You missed one part, putting iphone into pwned dfu prior to restoring to custom firmware.

[americaroma]

You missed one part, putting iphone into pwned dfu prior to restoring to custom firmware.

Yes, true... and is it restore or update while i click ''option'' on itunes?

Any ideas why it may give me an error?

[iYeow]

Option + restore

[americaroma]

It seems im doing everything right...but its not working


I get error 1600 on itunes after i try to restore and choose my custom ispw.... This happens even if im on DFU or not...

Any ideas of what i can do?

[iYeow]

Did you enter pwned dfu, not normal dfu. Do you know where your hosts file in Mac , make sure there is no ip address pointed at Cydia server. What you want is to verify your restore with Apple.

[americaroma]

Did you enter pwned dfu, not normal dfu. Do you know where your hosts file in Mac , make sure there is no ip address pointed at Cydia server. What you want is to verify your restore with Apple.

I only know about puting the iphone on dfu by holding home and power button 10 secs then only the home button by itself... And no i dont have a clue about my macs file hosts but if you can tell me what or where are those i would appreciate it, by the meanwhile im gonna do some research about them by searching, again thanks

[iYeow]

Have you unchecked set hosts file to cydia yet in TU

[americaroma]

Thanks iYeow, i did what you said and it worked well...


Now i have a different kind of problem which i didnt think i was gonna have, itunes wont let me activate phone because '' sim card is not compatible'' Is there anyway to bypass the activation?

[americaroma]

nevermind, found an old att sim card and it seems its gonna activate with that one...

Thank You Very Much iYeow