Technology Insights

How To Unjailbreak GreenPoison, Remove GreenPois0n From Your iPhone

I had been wanting to jailbreak my iPhone 4 for quite awhile but since I had upgraded to Apple iOS release 4.2.1 there was not an untethered jailbreak available at the time and since I typically turn my iPhone completely off I didn’t want to deal with the untethered jailbreak. So needless to say when GreenPois0n rc5 was released I was pretty excited. GreenPois0n rc5 made it extremely easy to jailbreak iPhone’s running iOS 4.2.1. After running it for around a month now though I noticed that I really don’t install enough applications outside of what is available via the iTunes App Store to warrant the jailbreak and especially because I have personally noticed that with my iPhone jailbroken it had slowed down a bit. Not only had it slowed down but my battery appeared to be draining much quicker which I assume was from more processes running. I made the decision a couple days ago to roll back to the stock iPhone 4.2.1 firmware to see if my phone started running more efficiently. Below are instructions for rolling back the GreenPois0n firmware on an iPhone 4 to the Apple iOS 4.2.1 firmware release.

Technology Insights

How To Access Mac OSX Hard Drive From Windows 7 Computer

We had a customer come in the computer shop the other day who needed us to troubleshoot an external hard drive that was crashing his Mac OSX laptop every time he plugged the USB cable from the external hard drive in. Once he left I removed the hard drive from the external hard drive enclosure and needed to find a way to access the data from my Windows 7 Ultimate 64-bit laptop to verify the hard drive was functioning as expected. Use the information below to access an OSX hard drive, which is formatted either as HFS, HFS+, or HFSX, from a Windows 7 computer.

Technology Insights

Connect a Macbook Pro To a Cisco Router with a Usb to Serial Adapter

Alex and I were redoing our shop network today and we had to do some configuring on our Cisco switch. Normally this is no big deal but because I switched to mac recently I realized that I had no clue how to console into a Ciso switch. After a little googling I found a free program called zterm which people said would work. I use a proprietary program called Secure CRT which does console conections but if you do not have that check out zterm.
Anyway obviously there is no serial port on a macbook pro so I needed to use my usb to serial adapter. I plugged it in only to find that my mac did not “see” it as a device. As most Windows users, I was used to it comming up as a comm port so I was not sure where to look for it