You need to change that to .ipsw
(ATTENTION: the right extension is IPSW not ispw !!)
Don’t unzip it. Just change the extension (rename the .zip file in .ipsw).
On a Mac if you read “xxxx.ipsw.zip” delete .zip !
If you don’t want to change the file type to .ipsw, just use different browser such Firefox or Safari from Apple.
Good luck !!
First: iPod Firmwares
1G/2G (1/1.5) iPod_1.1.5.ipsw
3G (2/2.3) iPod_2.2.3.ipsw
4G (10/3.1.1) iPod_10.3.1.1.ipsw
4G (4/3.1.1) iPod_4.3.1.1.ipsw
4G Photo/Color (11/1.2.1) iPod_11.1.2.1.ipsw
4G Photo/Color (5/1.2.1) iPod_5.1.2.1.ipsw
5.5G (25/1.3) iPod_25.1.3.ipsw
5G (13/1.3) iPod_13.1.3.ipsw
5G (20/1.3) iPod_20.1.3.ipsw
Classic (24/1.1.2) iPod_24.1.1.2.ipsw
Classic 2G (33/2.0.1) iPod_33.2.0.1.ipsw
Classic 3G (160 GB) (35/2.0.4) iPod_35.2.0.4.ipsw
Mini 1G (3/1.4.1) iPod_3.1.4.1.ipsw
Mini 1G (6/1.4.1) iPod_6.1.4.1.ipsw
Mini 2G (7/1.4.1) iPod_7.1.4.1.ipsw
Nano 1G (14/1.3.1) iPod_14.1.3.1.ipsw
Nano 1G (17/1.3.1) iPod_17.1.3.1.ipsw
Nano 2G (19/1.1.3) iPod_19.1.1.3.ipsw
Nano 2G (29/1.1.3) iPod_29.1.1.3.ipsw
Nano 3G (26/1.1.3) iPod_26.1.1.3.ipsw
Nano 4G (31/1.0.4) iPod_31.1.0.4.ipsw
Nano 5G (34/1.0.2 34A20020) iPod_1.0.2_34A20020.ipsw
Shuffle 1G (128/1.1.5) iPod_128.1.1.5.ipsw
Shuffle 1G (129/1.1.5) iPod_129.1.1.5.ipsw
Shuffle 2G (130/1.0.4) iPod_130.1.0.4.ipsw
Shuffle 2G (131/1.0.4) iPod_131.1.0.4.ipsw
Shuffle 2G (133/1.0.4) iPod_133.1.0.4.ipsw
Second: iPhone / iPod touch / iPad
iPad (3.2/7B367) iPad1,1_3.2_7B367_Restore.ipsw
iPhone (1.0/1A543a) iPhone1,1_1.0_1A543a_Restore.ipsw
iPhone (1.0.1/1C25) iPhone1,1_1.0.1_1C25_Restore.ipsw
iPhone (1.0.2/1C28) iPhone1,1_1.0.2_1C28_Restore.ipsw
iPhone (1.1.1/3A109a) iPhone1,1_1.1.1_3A109a_Restore.ipsw
iPhone (1.1.2/3B48b) iPhone1,1_1.1.2_3B48b_Restore.ipsw
iPhone (1.1.3/4A93) iPhone1,1_1.1.3_4A93_Restore.ipsw
iPhone (1.1.4/4A102) iPhone1,1_1.1.4_4A102_Restore.ipsw
iPhone (2.0/5A347) iPhone1,1_2.0_5A347_Restore.ipsw
iPhone (2.0.1/5B108) iPhone1,1_2.0.1_5B108_Restore.ipsw
iPhone (2.0.2/5C1) iPhone1,1_2.0.2_5C1_Restore.ipsw
iPhone (2.1/5F136) iPhone1,1_2.1_5F136_Restore.ipsw
iPhone (2.2/5G77) iPhone1,1_2.2_5G77_Restore.ipsw
iPhone (2.2.1/5H11) iPhone1,1_2.2.1_5H11_Restore.ipsw
iPhone (3.0/7A341) iPhone1,1_3.0_7A341_Restore.ipsw
iPhone (3.0.1/7A400) iPhone1,1_3.0.1_7A400_Restore.ipsw
iPhone (3.1/7C144) iPhone1,1_3.1_7C144_Restore.ipsw
iPhone (3.1.2/7D11) iPhone1,1_3.1.2_7D11_Restore.ipsw
iPhone (3.1.3/7E18) iPhone1,1_3.1.3_7E18_Restore.ipsw
iPhone 3G (2.0/5A347) iPhone1,2_2.0_5A347_Restore.ipsw
iPhone 3G (2.0.1/5B108) iPhone1,2_2.0.1_5B108_Restore.ipsw
iPhone 3G (2.0.2/5C1) iPhone1,2_2.0.2_5C1_Restore.ipsw
iPhone 3G (2.1/5F136) iPhone1,2_2.1_5F136_Restore.ipsw
iPhone 3G (2.2/5G77) iPhone1,2_2.2_5G77_Restore.ipsw
iPhone 3G (2.2.1/5H11) iPhone1,2_2.2.1_5H11_Restore.ipsw
iPhone 3G (3.0/7A341) iPhone1,2_3.0_7A341_Restore.ipsw
iPhone 3G (3.0.1/7A400) iPhone1,2_3.0.1_7A400_Restore.ipsw
iPhone 3G (3.1/7C144) iPhone1,2_3.1_7C144_Restore.ipsw
iPhone 3G (3.1.2/7D11) iPhone1,2_3.1.2_7D11_Restore.ipsw
iPhone 3G (3.1.3/7E18) iPhone1,2_3.1.3_7E18_Restore.ipsw
iPhone 3G S (3.0/7A341) iPhone2,1_3.0_7A341_Restore.ipsw
iPhone 3G S (3.0.1/7A400) iPhone2,1_3.0.1_7A400_Restore.ipsw
iPhone 3G S (3.1/7C144) iPhone2,1_3.1_7C144_Restore.ipsw
iPhone 3G S (3.1.2/7D11) iPhone2,1_3.1.2_7D11_Restore.ipsw
iPhone 3G S (3.1.3/7E18) iPhone2,1_3.1.3_7E18_Restore.ipsw
iPod touch 1G (1.1/3A101a) iPod1,1_1.1_3A101a_Restore.ipsw
iPod touch 1G (1.1.1/3A110a) iPod1,1_1.1.1_3A110a_Restore.ipsw
iPod touch 1G (1.1.2/3B48b) iPod1,1_1.1.2_3B48b_Restore.ipsw
iPod touch 1G (1.1.3/4A93) iPod1,1_1.1.3_4A93_Restore.ipsw
iPod touch 1G (1.1.4/4A102) iPod1,1_1.1.4_4A102_Restore.ipsw
iPod touch 1G (1.1.5/4B1) iPod1,1_1.1.5_4B1_Restore.ipsw
iPod touch 1G (2.0/5A347) iPod1,1_2.0_5A347_Restore.ipsw
iPod touch 1G (2.0.1/5B108) iPod1,1_2.0.1_5B108_Restore.ipsw
iPod touch 1G (2.0.2/5C1) iPod1,1_2.0.2_5C1_Restore.ipsw
iPod touch 1G (2.1/5F137) iPod1,1_2.1_5F137_Restore.ipsw
iPod touch 1G (2.2/5G77) iPod1,1_2.2_5G77_Restore.ipsw
iPod touch 1G (2.2.1/5H11) iPod1,1_2.2.1_5H11_Restore.ipsw
iPod touch 1G (3.0/7A341) iPod1,1_3.0_7A341_Restore.ipsw
iPod touch 1G (3.1.2/7D11) iPod1,1_3.1.2_7D11_Restore.ipsw
iPod touch 1G (3.1.3/7E18) iPod1,1_3.1.3_7E18_Restore.ipsw
iPod touch 2G (2.1.1/5F138) iPod2,1_2.1.1_5F138_Restore.ipsw
iPod touch 2G (2.2/5G77a) iPod2,1_2.2_5G77a_Restore.ipsw
iPod touch 2G (2.2.1/5H11a) iPod2,1_2.2.1_5H11a_Restore.ipsw
iPod touch 2G (3.0/7A341) iPod2,1_3.0_7A341_Restore.ipsw
iPod touch 2G (3.1.2/7D11) iPod2,1_3.1.2_7D11_Restore.ipsw
iPod touch 2G (3.1.3/7E18) iPod2,1_3.1.3_7E18_Restore.ipsw
iPod touch 3G (3.1.1/7C145) iPod3,1_3.1.1_7C145_Restore.ipsw
iPod touch 3G (3.1.2/7D11) iPod3,1_3.1.2_7D11_Restore.ipsw
iPod touch 3G (3.1.3/7E18) iPod3,1_3.1.3_7E18_Restore.ipsw
Update 1: iOS 4 is available for Download:
Download iOS 4 for iPhone 3GS - iPhone2,1_4.0_8A293_Restore.ipsw
Download iOS 4 for iPhone 3G - iPhone1,2_4.0_8A293_Restore.ipsw
Download iOS 4 for iPod Touch 2G - iPod2,1_4.0_8A293_Restore.ipsw
Download iOS 4 for iPod Touch 3G - iPod3,1_4.0_8A293_Restore.ipsw
Download iOS 4 for iPhone 4G - iPhone3,1_4.0_8A293_Restore.ipsw
Update 2: iOS 4.0.1 for iPhone and iPod Touch, iOS 3.2.1 for iPad released,
Download iOS 4.0.1 for iPhone 4 - iPhone3,1_4.0.1_8A306_Restore.ipsw
Download iOS 4.0.1 for iPhone 3GS - iPhone2,1_4.0.1_8A306_Restore.ipsw
Download iOS 4.0.1 for iPhone 3G - iPhone1,2_4.0.1_8A306_Restore.ipsw
Download iOS 3.2.1 for iPad - iPad1,1_3.2.1_7B405_Restore.ipsw
Update 3: iOS 4.0.2 for iPhone and iPod Touch, iOS 3.2.2 for iPad released,
Download iOS 4.0.2 for iPhone 4
Download iOS 4.0.2 for iPhone 3GS
Download iOS 4.0.2 for iPhone 3G
Download iOS 4.0.2 for iPod Touch 3G
Download iOS 3.2.2 for iPad 3G and WiFi
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