JAILBREAK FER 4.2.1(+ many other tips)

its like a breeze..
but instructions is very difficult to follow..
so lets see wat i can do first..

DO TAKE NOTE:
if ur iphone set is a unlocked set, dont bother trying..
but i tested on a singtel iphone 3gs(16gb) and it worked perfectly.

BASICALLY,
go to http://www.felixbruns.de/iPod/firmware/
download the applicable Firmware...
FOR EG, if yours is a ipod touch 3, u download the firmware for ipod touch 3 fw4.2.1..

how to differentiate 2g and 3g ipod touch??
a 2g ipod touch behind got this words : tm and apple inc all right reserved
a 3g ipod touch behind dun have such words.

after u downloaded it,
its in zip format.
its either when u downloading it, u rename it from .zip to .ipsw
OR
u rename it AFTER downloading.

unlike win xp, u can just rename the extension, win vista block it by default.
SO,
open my computer,
press ALT
your file edit view tools bar will come out.
go to tools >> folder options>> view tab
UNCHECK "hide extension for known file type"
press apply!!
now u can rename it from ipsw to zip!!!


now open itunes
connect device to comp,
press shift+ click on restore button
find the file i asked u to download above
install and bla bla bla fer approx 15mins.
and tada, u get 4.2.1 firmware

Sounded easy till now???

HERES THE CHALLENGE
download redsnow 0.9.6b4 from
http://www.technonix.com/2010/11/download-redsn0wredsnow-0-9-6b4-to-jailbreak-ios-4-2-1/

Downloads
Redsn0w 0.9.6b4 for Mac

■http://www.iphone-storage.de/redsn0w_mac_0.9.6b4.zip
■http://cdn.nspwn.com/redsn0w_mac_0.9.6b4.zip
■http://tgq.nl/redsn0w_mac_0.9.6b4.zip


Redsn0w 0.9.6b4 for Windows

■http://cdn.nspwn.com/redsn0w_win_0.9.6b4.zip
■http://tgq.nl/redsn0w_win_0.9.6b4.zip
■http://bubele.eu/redsn0w_win_0.9.6b4.zip
■http://kwek.no-ip.org/redsn0w_win_0.9.6b4.zip

unrar/unzip the file and u will see redsnow.exe
fyi,im doing on windows.

heres another tricky part.
redsnow is not very happy with apple
so first, u needa right click and run the exe as administrator.
once the program started, call out window task manager by ctrl+alt+delete
go to PROCESSESS tab and press "r" and u will find redsnow.exe
right click on it and go to set affinity and UNCHECK "CPU 0"

now,
u go back to redsnow,
browse for the firmware u downloaded from above.
it will prompt some msg and READ IT WORD FOR WORD
it will ask u to check which batch of iphone/itouch are u using.
THERE ARE SPECIFIC INSTRUCTION TEACHING HOW TO CHECK, so please READ.
and answer the question of yes or no. (u didnt check and anyhow answer, u will crash and die like a g6, trust me.. i crashed 6times before i really do read)

after that, press next
den it will load some shits.
LET IT BE.
den it will bring to page 2.
it says, a lot of rubbish.
but just tick install cydia
press next

it will prompt u to OFF ur device.
OFF IT FULLY BEFORE PRESSING NEXT

okay,
now its a bit of tactical movement.
once u press next, u have to hold on to power button fer 3sec, den while holding power button, press home button as well fer 10sec, den release power button BUT cont holding home button until it load the jailbreaking device page.
SOUND CRAZY? yes, this is known as going into dfu mode.
check this out


IF all is well, yea, u will see cydia once it boot up approx 5mins later.

try clicking on cydia.
IT WILL NOT LAUNCH.
so how???
proceed to part 2


PART 2 liaoz

For The iPhone 4/3Gs New Bootrom/iPod Touch 4th/3rd/2nd MC It Is Tethered!!!
(means if it shut down, u needa do this part 2 step)

the rest? it just meant u can just off it and on it anytime u want.

AFTER U JAILBREAK OR U OFF UR TETHERED DEVICE,
u hafta go thru this shit.

start redsnow by right clicking, and start as administrator
den start window task manager
under process tab, look for redsnow.exe
right click and choose set affinity...
UNcheck cpu 0 and press okay.

choose firmware 4.2.1 on redsnow using browse.
press OK
check boot device tethered
off phone.
once u press next, u have to hold on to power button fer 3sec, den while holding power button, press home button as well fer 10sec, den release power button BUT cont holding home button until it load the jailbreaking device page.

after that, ur cydia shld work.

the good part of this tethering is that unlike the old ones, the phone/touch totally cant on. but this one, it can on, only cant play games tt require jail breaking to play.



How To Install AppSynch 4.2 On iOS 4.2.1 Devices :

Step 1: Start “Cydia” on your iPhone.

Step 2: Touch on “Manage” tab on the bottom.

Step 3: Now touch on “Sources”.

Step 4: Touch on “Edit”, and then on “Add”.Type “http://cydia.hackulo.us” and click on“Add Source”.Cydia will now automatically update your sources by following a series of automated steps.

Step 5: After installation is completed. Search for “AppSync for OS 4.2” in Cydia and install this application. This app will automatically patch MobileInstallation file on your iPhone, iPad or iPod touch running firmware 4.2.1.You should now be able to install .ipa files manually on your iOS device running firmware 4.2.1.


Originally Posted: http://thetechjournal.com/electronics/iphone/appsync-4-2-for-ios-4-2-1-devices.xhtml#ixzz1BnNIGnnR


HOWEVER,
when im trying to install appsync, i cant file 4.2.1 and only see 3.1+ appsync.
so i just tried installing 3.1+ appsynce and it works also.
install installous also..
it usefull!

LAst but not least,
www.appleiso.com
http://iphonecake.com/appcake/en/
to get ur shits!!

DISCLAIMER
try at ur own risk, as this guide is fer self reference.
u can always call me if ur a frenz, or email me @ we_as1989@hotmail.com if ur a stranger
LAST BUT NOT LEAST,
i dont support piracy, but i do all these because im interested in such technical stuffs.