how to fix screen shrinking problem on jailbroken iphone

there seems to be a bug in the absinthe jailbreak for iphone os 5.0.1. occasionally when you open an app it will shrink into the upper-left corner of the screen. i know of no permanent fix for this, but since it doesn't seem to happen very often, i figured out a way to temporarily fix this when it occurs:

1. download sbsettings from cydia if you haven't already (note: if you can't get cydia to appear in a normal window, try rebooting until it does). reboot/respring if necessary
2. swipe from left-to-right or right-to-left across the top of the screen to get the sbsettings menu to drop-down.
3. click the power button
4. click 'safe mode'
5. when you reboot in safe mode, open an app. it will either immediately open in a normal sized screen or appear shrunken again and then restore to normal size.
6. click 'exit safe mode' at the top of the screen
7. click to restart to return to normal mode and the problem should be fixed

you're welcome, alyssa

jailbreak the iphone 3GS OS 4.01

if you made the terrible, terrible mistake of upgrading your iphone 3GS to OS 4.0 before a jailbreak was released, the day of salvation has arrived. an ingenious 17 year old has released the first OTA (over the air) jailbreak for the iphone which will finally give freedom back to the poor souls on OS 4.0. backup your iphone and then open safari and navigate to http://jailbreakme.com. note that it took me three tries before the download started so don't give up if it doesn't appear to work the first time. a progress bar and status message will inform you when the download is complete and then once the jailbreak is complete and cydia is installed. if you have not already done so, allow cydia to store your ECID

jailbreak the ipad or iphone 3G/S OS 3.1.3

it is again possible to jailbreak your iphone if you made the mistake of upgrading the OS to 3.1.3 (or broke your phone and had to buy a new one that already had the damn thing on there). spirit is a small (4,464 KB), free application that jailbreaks your iphone with the click of one button in ~30 seconds including the reboot. it will also jailbreak your ipad but i won't know the amount of time that it takes until mine arrives next week :) (edit: ipad jailbreak ~15 seconds)

recommended applications once your device is free from the controlling, icy grips of apple:

• infinidock - dock as many applications as you please (well worth the $.99 cents)
• five column springboard - five columns of apps on every screen instead of four (free) (edit: note - do not install this on an ipad. it will add a fifth column but all of your icons will squish together)
• sbsettings - bossprefs 2.0. slide your finger across the top of the screen to access all of your phone information and change configure any setting you can imagine (free)
• backgrounder - run applications in the background. from experience, this is much more useful if you have a 3GS that can handle it (free)
• mxtube - save youtube videos to your phone (free)
• yourtube - like mxtube but integrated with existing youtube app ($2.00)
• lockdock - launch applications from your lock screen ($2.00)
• installous -don't feel like paying for that appstore application? get it for free using installous (free)
• appsync -include cracked applications when you backup/restore your iphone (free)

the latter two apps require you to first add the hackulo repository (from cydia: manage -> sources -> edit -> add, enter cydia.hackulo.us and click 'add source')

all thanks to @Lavarsicious for this information

jailbreak the iphone 3G OS 3.0

jailbreaking an iphone is a process that allows you to install applications without having apple approve them first - it's your phone, you should be able to put whatever you want on it. having said that, the freedom you gain by jailbreaking comes at the cost of being kicked out of the nest and out from under the protective wing of apple. i don't know but doubt there are possible legal ramifications for jailbreaking but i can guarantee that shiny icare protection plan you bought isn't worth the cardboard it came in if you send in a hacked phone and ask apple to please fix the booboo. get the facts, weigh the pros and cons and know why you are doing this before you start.

...or you could be reckless and cavalier like me and just do it because it sounds cool

i used the information found here as a guide and highly recommend it; however, if you understand what you're about to do and/or you've been reading about the experiences of others, you should realize that jailbreaking doesn't always go as planned. i you didn't realize that, you should and you do now, but you should also realize that as long as you don't freak out or at least refrain from physically stopping the process (e.g. disconnecting the pc power cord or turning off your laptop, disconnecting the phone from the pc, formatting your hard drive during the jailbreak, etc.), at worst you should have your phone back to where it was before you started toying with it in an hour or two. here is my interpretation of the information presented in the link above and how i'd walk someone through the jailbreak (draft one since work is calling):

1. connect your iphone to your pc and allow it to fully synchronize. this gives you a point-in-time backup of your phone and later allows you to automatically recover all of your apps/contacts/settings/etc. and keep the jailbreak.
   
2. download the 3.0 installation package manually. you will have one locally if you upgraded to 3.0 through iTunes, but i was unable to get through the first reboot of the jailbreak using this file.
3. download and extract redsn0w (i'd do as they say and use the torrent they certify). it doesn't matter where you place or what you name the folder that will contain the extracted files.
   
4. run redsn0w and browse to and select the .ipsw file you downloaded. i don't know if your phone has to be on and attached to your pc at this point but i would assume so since the application appears to verify that the OS version on your phone matches the one from the file.
5. (edit: i seem to have issues with redsn0w completing if my phone is password protected. to be on the safe side, i would disable this feature before continuing) do as redsn0w says but don't freak out if you don't time something perfectly. your phone will visibly react to both the initial two second hold of the power button and the following ten second hold of both the power button and the home button; however, it never took more than 13 seconds on the final step of holding just the power button for redsn0w to take over (the screen will flash and display an image and a message stating that installation started). once you see this you can let go of the home button and let redsn0w do the work from there.
6. occupy yourself with something else for the next twenty or thirty minutes because the install takes time. if you sit there and stare at it, you run the risk of worrying that it is taking too long and freaking out and doing something stupid and possibly dangerous to your phone.
b. if the phone never comes back from rebooting (i.e. stays powered off), just cancel the jailbreak, detach the phone from the pc (probably optional) and turn it back on - you will see it is perfectly fine and looks exactly like it did before you initiated the jailbreak.
7. once you can get back to your home screen, detach and then reattach your phone to the pc. this will confuse itunes and it will ask you if it should treat the phone as new or if it should restore the phone from a backup. select the backup you created in step 1. and continue. this will likely take longer than the actual jailbreak but you are in the clear at this point.
8. after itunes finishes restoring the backup and synchronizing, you will have a phone that does everything you loved before but is no longer under the all-seeing eye of the apple gestapo.
   

post any questions and i'll do my best to help as soon as i can