iPod touch just help

iOS 4.2.1 is actually a great version for the 4th gen. I run it on mine personally, but I don't use many apps at all. Mostly for music.

4.3.3 is also good as it opens it up to newer apps and safari is improved, though it has a little less free ram.

Anyway, you can go to 4.3.3, but ONLY if you have SHSH blobs for it. Such as if it was on it at one point or jail broken on it you may be in luck. Most likely though, the previous owner never went beyond 4.2.1. In that case the only place you can go is to 6.1.5. Or save the SHSH using tiny umbrella (probably from cydia's server) and restore 4.2.1 to get it working properly.

For instance, I've jail broken and saved almost every version of iOS I've been on. So I have SHSH blobs for 4.2.1, 4.3.3, 5.0.1, 6.1 etc. so I can freely switch between them. But I'm in the minority.

Another thought is that cydia's is just messed up and you might be able to fix it by rerunning the jail break tool. I think it was greenp0ison or something for 4.2. It's been a while.

 

download the latest version of ifaith and dump your blobs. this will essentially create 4.2.1 blobs for you (or whatever version your ipod touch 4th gen is one)

note: this only works for devices with a bootrom exploit

make sure to keep the local copy of the .ifaith blobs! they will be crucial for you to re-restore or downgrade to that version

with those blobs, give restoring to 4.3.3 (via a custom ipsw) a try. if it works, give 6.1.5 a try and see if you like that version more. if not, you can downgrade back to 4.3.3

also consider that once you upgrade and decide to downgrade, you may lose access to a lot of apps from that device (unless you "transfer purchases" and backed it up to your itunes and those apps are associated to your itunes account)

 

the ipod touch 4th gen has a bootrom exploit, so you will be able to make blobs with ifaith. just follow the instructions i posted up above (just the simple instructions with the downloading ifaith and the option you click; the rest, the program will guide you)

 

iOS 6.1.6 is already jailbroken.

 

it's already jailbroken, you just have to tether jailbreak it with redsn0w and install the latest version of p0sixspwn from cydia

that is, until the standalone application is updated (according to ih8sn0w, this is on a low priority)

 

what's wrong with your cydia?

and yes, you can restore to 6.1.6 in itunes (make sure to choose the "restore" option, and not "update"!")

download evasi0n 1.0.6 from http://evasi0n.com/

and then jailbreak

 

if the ipod touch is on 4.2.1 and there are possibilities you plan to downgrade it, then download the latest version of iFaith and dump your SHSH blobs

that'll give you a .ifaith blob (keep it safe!) and it'll be crucial for whenever you wish to downgrade to 4.2.1 if iOS 6.x is too laggy for you

 

Nope. You just need to have an A4 device or under (basically, a bootrom exploit)

 

what device do you have?

 

can you teach me how to do it?
all of apps installed on this ipod was installed by other person and his itunes account and credit card etc. can i back up all the apps installed by that person on my ipod touch into my computer and restore it from backup?[/QUOTE]

unless you have access to that person's itunes account (apple id & password), you can't bring the apps back onto your device if you restore it