So it’s nearing the end of the Holiday season and it’s time for the aftermath of the chaos of having relatives and children over and playing around with your stuff and you notice a few treasured toys are broken/damaged.
You come to find that your iPhone 3GS, iPhone 4, or iPad has gotten some form of hurt and you think it’s time to send it in for repairs. BUT, WAIT A MINUTE!!! If you send it back to Apple they will probably just send you a refurbished device in return and bye bye jailbreak. So it’s time to put on your tinkering hat or send it to a place that will just replace the broken parts.
These are the nifty toys you need to make sure are safe and intact (ESPECIALLY if you have a factory unlock) 3GS, iPhone 4, iPad and iPod Touch 3g+ logic boards are where the SHSH blobs correspond to and that means if you get a new one of those, bye bye SHSH and bye bye ability to downgrade in case you accidentally upgrade to a firmware not yet jailbreakable.
Now I know what you are thinking. “Limera1n exploit will work on any current iOS device, so why should I care?” Well the reason you should care is this. Limera1n will work on every current iOS device and firmware as tethered for certain.
Speaking currently to untether jailbreak 4.2.1 you require 4.2b3 SHSH blobs which are linked to your logic board. If you replace your logic board (when it isn’t broken) you just burned yourself out of being able to untether. The same goes if a way to use 4.1 in a future
The concept here is, If your iOS device is busted, make sure you save your logic board if possible.
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