Cannot boot 4.2.1 redsn0w tethered after reset

[andry1234]

Hi to everyone,
it seems like I have a very big problem. I had the 4.2.1 mounted on my iPad, jailbroken with redsn0w tethered mode. The iPad was at 21% and I had to delete all the things in it..... What I did?? I went in settings, then reset, then erase all data and content... It restarted to clean itself but now it's into an infinite loop...
I googled a lot, trying for every possible solutions..... I tried of everything, but I cannot make it works....
Everyone did the same exact thing and solved???

Thank u soo much for ur help..

Andrea

 

[f4780y]

You will need to restore in iTunes from DFU mode on the iPad. AFAIK it must be DFU in this situation, nothing else will do.
If you are trying to restore to 4.2.1 and not 4.3 make sure you are using tinyumbrella to serve up the right shsh blobs to iTunes (assuming you saved them when you jailbroke)
If you don't have blobs saved your only option is to restore 4.3 at the moment.

Hope that helps...

 

[andry1234]

I cannot enter in a normal DFU mode cause I got the infinite loop with the white apple logo.
This is a tethered jailbreak, so I think I need to turn on with the redsn0w option "boot tethered now" but... I cannot follow the instructions, it always tell me "DFU mode failed".....

 

[biobunny]

Wait a few days until the battery dies and then try DFU. Next time wait for a untethered jailbreak, and even then wait for it to mature so they can fix big bugs if there are any.

 

[andry1234]

Wait a few days until the battery dies and then try DFU. Next time wait for a untethered jailbreak, and even then wait for it to mature so they can fix big bugs if there are any.

Yes, I thought to this too... My iPad is low battery, I bother it a lot of times, pressing the sleep button, to make the battery reaches zero.... I hope that this procedure will give me back the DFU mode......

 

[biobunny]

Just do nothing. Put it in a cabinet perhaps to resist the urge.

 

[andry1234]

Just do nothing. Put it in a cabinet perhaps to resist the urge.

Oh ok bionunny, I will bother just sometimes to see if the iPad is totally at zero..... Do u think this can help in resetting everything? If the nand is totally corrupted is possible to change it in an human way?

Thank u

 

[biobunny]

When your putting your iPad in DFU mode your replacing your entire bootloader as well as your firmware. Wait, sorry I forgot to mention that a dead iPad can't get to DFU. So try plugging it in your Mac/PC after it's dead and then try DFU mode.

 

[andry1234]

When your putting your iPad in DFU mode your replacing your entire bootloader as well as your firmware.

OK, but now it gets in a strange DFU mode, I'm sure is something like that cause the iPad ignores my input (keys, cables.... just blank screen).... but the computer doesn't recognize it...
If it gets totally to zero, I reconnect and try to put in DFU, do u think there a possibility it will work again?

 

[biobunny]

Yes, DFU mode will help it (hopefully) and in technical terms in DFU mode the iPad doesn't attempt to even start up it just is like booting a PC/Mac/Linux from a restore disk and waiting for it to get erased.

 

[biobunny]

OK, but now it gets in a strange DFU mode, I'm sure is something like that cause the iPad ignores my input (keys, cables.... just blank screen).... but the computer doesn't recognize it...
If it gets totally to zero, I reconnect and try to put in DFU, do u think there a possibility it will work again?

Try another PC/Mac such as maybe your friends. Then just restore it there and don't synch it. Or try another USB port.

 

[andry1234]

OK, but now it gets in a strange DFU mode, I'm sure is something like that cause the iPad ignores my input (keys, cables.... just blank screen).... but the computer doesn't recognize it...
If it gets totally to zero, I reconnect and try to put in DFU, do u think there a possibility it will work again?

Try another PC/Mac such as maybe your friends. Then just restore it there and don't synch it. Or try another USB port.

I already tried with two Macbook Pro, all the usb ports... Tried even on a PC with windows XP installed.. nothing...
Last hope is to make the battery reach zero and pray that the DFU mode will work..

 

[biobunny]

Other iPad masters, please help us!

 

[andry1234]

Other iPad masters, please help us!

Ultraquote..
This is a very rare situation..

 

[biobunny]

I think you had it =(.