Blank Cydia Icon After iTunes Update

[dannywalls76]

Has anyone seen this before? A friend of mine has just got an iPhone 3GS off eBay and updated it through iTunes to 5.1. However, when we looked at it in more depth, the previous owner had upgraded the modem firmware to 6.15.00. Now the update seems to have gone through OK, but a blank Cydia icon remains on the springboard.
I've been scratching my head for hours and can't figure it out. Would the iTunes update not have deleted all traces of a previous JB?

 

[dhlizard]

Has anyone seen this before? A friend of mine has just got an iPhone 3GS off eBay and updated it through iTunes to 5.1. However, when we looked at it in more depth, the previous owner had upgraded the modem firmware to 6.15.00. Now the update seems to have gone through OK, but a blank Cydia icon remains on the springboard.
I've been scratching my head for hours and can't figure it out. Would the iTunes update not have deleted all traces of a previous JB?

Get iWipeCache from Cydia and run it. If that does not fix it, try turning the phone on and off

Edit: Do another restore using custom IPSW

 

[b0bab0i]

When the phone has iPad BB, you are only suppose to restore using a custom IPSW. Can you make calls/texts on the phone still?

 

[eastercat]

Your friend's not very bright and didn't bother to do any homework. Talk about lazy.
You can't do do an update in itunes, the standard way, with the ipad bb. You must always use a custom firmware.

 

[dannywalls76]

Haha. I know that. I've being telling him for years. The problem is that he has never owned an iPhone before and so is not familiar with jailbreaking. I think he just plugged it into his computer and iTunes threw up the new software update offer and he took it, not realizing that the phone was jailbroken. He upgraded from 4.2.1.
Has anyone got any ideas what we can do with it? I always thought that the stock 5.1 would have bricked the phone, but it boots up ok. Not sure if it works as a phone (texts and calls) yet. is there any way of downgrading IF the SHSH blobs were saved?

 

[Kyotoma]

Haha. I know that. I've being telling him for years. The problem is that he has never owned an iPhone before and so is not familiar with jailbreaking. I think he just plugged it into his computer and iTunes threw up the new software update offer and he took it, not realizing that the phone was jailbroken. He upgraded from 4.2.1.
Has anyone got any ideas what we can do with it? I always thought that the stock 5.1 would have bricked the phone, but it boots up ok. Not sure if it works as a phone (texts and calls) yet. is there any way of downgrading IF the SHSH blobs were saved?

Only the firmware. Not the baseband. Restore using a custom IPSW through redsn0w.

 

[Crystal-RX]

Haha. I know that. I've being telling him for years. The problem is that he has never owned an iPhone before and so is not familiar with jailbreaking. I think he just plugged it into his computer and iTunes threw up the new software update offer and he took it, not realizing that the phone was jailbroken. He upgraded from 4.2.1.
Has anyone got any ideas what we can do with it? I always thought that the stock 5.1 would have bricked the phone, but it boots up ok. Not sure if it works as a phone (texts and calls) yet. is there any way of downgrading IF the SHSH blobs were saved?

You can restore it to stock 4.1 fw if you don't want to mess with customs firmware, then reflash ipad baseband, jailbreak with redsn0w and then install ultrasn0w to unlock it.

Iclarified.com has all the tutorial you need to do this.

 

[dannywalls76]

Brilliant. Thanks for all your help. I shall give it a go.