I tried everything and still cant update to 4.3.3!

[Nebul0us]

hello. im not new to updating my iphone, jailbreaking and unlocking it, but i have no idea whats going on this time.

i have iphone 3GS on firmware 4.2.1, with 06.15.00 Baseband (the ipad bb right?)

i tried updating via itunes to firmaware 4.3.3 and it keeps saying "the iphone *** culd not be updated. this devise isn't eligible for the requested built". i read somewhere that this error is because my iphone has the ipad baseband, please corect me if im wrong. i also downloaded custom 4.3.3 firmaware and tried updating via itunes and again i got the same error. please help me, and tell me what should i do to be able to update. i really need to update because everything on my iphone keeps crashing. and this error is driving me crazy. thanks in advance.

 

[awadeee]

You need to use custom 4.3.3 firmware and you have to be in pwned DFU mode. You can use redsn0w 0.9.6RC17 to get into pwned DFU mode.

 

[Nebul0us]

You need to use custom 4.3.3 firmware and you have to be in pwned DFU mode. You can use redsn0w 0.9.6RC17 to get into pwned DFU mode.

i already mentioned that i used a custom 4.3.3. doesnt custom mean that u download it over the net? i mean its not the one itunes tried installing for u. i still get same error with the custom fw.

 

[UngratefulNinja]

i already mentioned that i used a custom 4.3.3. doesnt custom mean that u download it over the net? i mean its not the one itunes tried installing for u. i still get same error with the custom fw.

That's not what custom fw means.

 

[Nebul0us]

That's not what custom fw means.

my mistake. may i please know how to get a custom fw then? and how to use it via itunes to be able o update?