iPhone 4 OS 4.0.2

wills**01 · 14-08-2010, 16:44

Any noticeable changes ? It doesnt make the phone sluggish at it, does it? Ive done a Download Only for the moment. Unsure whether to install it after what happened with my old 3G & OS 4.0!

call100 · 14-08-2010, 16:58

I had nothing but trouble with the last two updates for 4 on my 3G but this one went without any hitch and has not made the phone any slower than the original 4 update....

Gormond · 14-08-2010, 17:08

All 4.0.2 does is fix the pdf exploit as far as i know.

Stephen93 · 14-08-2010, 17:13

I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01.

Steve

plymouthbloke1974 · 14-08-2010, 17:25

Quote:

Originally Posted by Stephen93

I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01.

Steve

There isn't an "official" way to downgrade to 4.0.1 ...... *walks away whistling innocently*

*COUGH COUGH*
http://www.iphonefirmware.com/firmwares-download/
*COUGH COUGH*

Daveoc64 · 14-08-2010, 17:28

Quote:

Originally Posted by Stephen93

I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01.

Steve

iOS 4.2 isn't out.

This is iOS 4.0.2

Matt D · 14-08-2010, 17:41

Quote:

Originally Posted by Stephen93

I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01.

Steve

There is...

You need to "acquire" 4.0.1 (if you don't still have it on your computer), put your iPhone into DFU mode, & then point iTunes at 4.0.1.

DFU:

http://www.sleepers.net/blank/dfu-mode

http://www.ismashphone.com/2008/08/recovery-dfu.html

To point iTunes to the file you have, hold down "Shift" & click on "Restore". It will allow you to browse to the firmware file you want to install.

If you have a 3GS/4, and if Apple has now stopped signing 4.0.1, then the only way you can downgrade is if you have previously used Cydia or Firmware Umbrella to store your device's unique "SHSH blobs" for iOS 4.0.1 (e.g. you let Cydia "Make your life easier"). You then have to trick iTunes into looking at Cydia/Umbrella for the firmware signature, instead of Apple's server.

http://www.saurik.com/id/12

http://thefirmwareumbrella.blogspot....lla-40054.html

However, from what I can find, Apple is still apparently signing 4.0.1, at least it was as of yesterday.

darkjedimaster · 14-08-2010, 17:56

Well the Dev team has done it again, they have released their own version of the patch which enables you to keep your jailbreak.

Nice try Jobs n co but hackers will always find a way of beating your restrictions.

Matt D · 14-08-2010, 18:08

Quote:

Originally Posted by darkjedimaster

Well the Dev team has done it again, they have released their own version of the patch which enables you to keep your jailbreak.

Nice try Jobs n co but hackers will always find a way of beating your restrictions.

Yup, it's by Jay "saurik" Freeman (author of Cydia, etc.)

http://blog.iphone-dev.org/post/9414...hat-apple-wont

davethorp · 14-08-2010, 18:37

The most notable feature of iOS 4.2 is it activates the hidden time travel feature which is currently switched off on all models

wills**01 · 14-08-2010, 18:50

OK, glad it doesnt slow the phone down. Never heard of this time travel thing though!

hassan · 14-08-2010, 21:36

Quote:

Originally Posted by Stephen93

I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01.

Steve

if you had jailbroken it then there is a chance cydia saved your shsh blobs on it's server. There may be a way to downgrade.

http://mygadgetnews.com/2010/08/13/h...mware-windows/

IslandNiles · 15-08-2010, 02:37

Quote:

Originally Posted by wills**01

OK, glad it doesnt slow the phone down. Never heard of this time travel thing though!

Settings > General > Flux capacitor

Just switch to 'On'.

MTUK1 · 15-08-2010, 03:19

Quote:

Originally Posted by wills**01

OK, glad it doesnt slow the phone down. Never heard of this time travel thing though!

LOL!

PrinceGaz · 15-08-2010, 04:45

Yeah, although I'm still on 3.1.2 here, I let Cydia get hold of my blobs and keep its hands on them.

I don't want to upgrade to 4.x yet as I think some of the apps I use will malfunction, and I'm afraid of performance issues (I have a 2nd gen iTouch). Essentially I have nothing to gain, and potentially a bit to lose, given that everything I currently have installed works fine, and I've installed Saurik's PDF fix.

14-08-2010, 16:44	#1
wills**01 Forum Member Join Date: Jun 2008 Posts: 890	iPhone 4 OS 4.0.2 Any noticeable changes ? It doesnt make the phone sluggish at it, does it? Ive done a Download Only for the moment. Unsure whether to install it after what happened with my old 3G & OS 4.0!

14-08-2010, 17:13	#4
Stephen93 Forum Member Join Date: Sep 2001 Location: Derbyshire Posts: 968	Jailbreak lost I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01. Steve

14-08-2010, 16:58	#2
call100 Forum Member Join Date: Mar 2005 Posts: 6,572	I had nothing but trouble with the last two updates for 4 on my 3G but this one went without any hitch and has not made the phone any slower than the original 4 update....

14-08-2010, 17:08	#3
Gormond Forum Member Join Date: Jul 2006 Location: Scotland Posts: 15,714	All 4.0.2 does is fix the pdf exploit as far as i know.

14-08-2010, 17:25	#5
plymouthbloke1974 Forum Member Join Date: Aug 2001 Location: Destination: Hard Brexit Posts: 6,368	Quote: Originally Posted by Stephen93 I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01. Steve There isn't an "official" way to downgrade to 4.0.1 ...... walks away whistling innocently COUGH COUGH http://www.iphonefirmware.com/firmwares-download/ COUGH COUGH

14-08-2010, 17:28	#6
Daveoc64 Forum Member Join Date: Sep 2003 Location: Bristol (BBC1 West) Posts: 15,143	Quote: Originally Posted by Stephen93 I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01. Steve iOS 4.2 isn't out. This is iOS 4.0.2

14-08-2010, 17:41	#7
Matt D Forum Member Join Date: Jun 2007 Location: Cambridge Posts: 13,064	Quote: Originally Posted by Stephen93 I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01. Steve There is... You need to "acquire" 4.0.1 (if you don't still have it on your computer), put your iPhone into DFU mode, & then point iTunes at 4.0.1. DFU: http://www.sleepers.net/blank/dfu-mode http://www.ismashphone.com/2008/08/recovery-dfu.html To point iTunes to the file you have, hold down "Shift" & click on "Restore". It will allow you to browse to the firmware file you want to install. If you have a 3GS/4, and if Apple has now stopped signing 4.0.1, then the only way you can downgrade is if you have previously used Cydia or Firmware Umbrella to store your device's unique "SHSH blobs" for iOS 4.0.1 (e.g. you let Cydia "Make your life easier"). You then have to trick iTunes into looking at Cydia/Umbrella for the firmware signature, instead of Apple's server. http://www.saurik.com/id/12 http://thefirmwareumbrella.blogspot....lla-40054.html However, from what I can find, Apple is still apparently signing 4.0.1, at least it was as of yesterday.

14-08-2010, 17:56	#8
darkjedimaster Forum Member Join Date: Sep 2007 Location: The Deathstar Posts: 15,398	Well the Dev team has done it again, they have released their own version of the patch which enables you to keep your jailbreak. Nice try Jobs n co but hackers will always find a way of beating your restrictions.

14-08-2010, 18:08	#9
Matt D Forum Member Join Date: Jun 2007 Location: Cambridge Posts: 13,064	Quote: Originally Posted by darkjedimaster Well the Dev team has done it again, they have released their own version of the patch which enables you to keep your jailbreak. Nice try Jobs n co but hackers will always find a way of beating your restrictions. Yup, it's by Jay "saurik" Freeman (author of Cydia, etc.) http://blog.iphone-dev.org/post/9414...hat-apple-wont

14-08-2010, 18:37	#10
davethorp Forum Member Join Date: Mar 2007 Location: Preston, Lancashire Posts: 7,255	The most notable feature of iOS 4.2 is it activates the hidden time travel feature which is currently switched off on all models

14-08-2010, 18:50	#11
wills**01 Forum Member Join Date: Jun 2008 Posts: 890	OK, glad it doesnt slow the phone down. Never heard of this time travel thing though!

14-08-2010, 21:36	#12
hassan Forum Member Join Date: Jun 2004 Posts: 3,399	Quote: Originally Posted by Stephen93 I've downloaded 4.2 & lost my Jailbreak & my apps., wished I'd realised as there's no way to downgrade to 4.01. Steve if you had jailbroken it then there is a chance cydia saved your shsh blobs on it's server. There may be a way to downgrade. http://mygadgetnews.com/2010/08/13/h...mware-windows/

15-08-2010, 02:37	#13
IslandNiles Forum Member Join Date: Apr 2005 Posts: 13,091	Quote: Originally Posted by wills**01 OK, glad it doesnt slow the phone down. Never heard of this time travel thing though! Settings > General > Flux capacitor Just switch to 'On'.

15-08-2010, 03:19	#14
MTUK1 Inactive Member Join Date: Mar 2003 Location: London, United Kingdom Posts: 19,783	Quote: Originally Posted by wills**01 OK, glad it doesnt slow the phone down. Never heard of this time travel thing though! LOL!

15-08-2010, 04:45	#15
PrinceGaz Forum Member Join Date: Mar 2006 Location: Newcastle-upon-Tyne Posts: 8,175	Yeah, although I'm still on 3.1.2 here, I let Cydia get hold of my blobs and keep its hands on them. I don't want to upgrade to 4.x yet as I think some of the apps I use will malfunction, and I'm afraid of performance issues (I have a 2nd gen iTouch). Essentially I have nothing to gain, and potentially a bit to lose, given that everything I currently have installed works fine, and I've installed Saurik's PDF fix.

DS Forums

iPhone 4 OS 4.0.2