Since my first install of a soft mod last year I have always believed that you people who get caught in clock loops have done something wrong. Now I know what it is. I had tested Xboxes 1.0 to 1.4 with leaving them unplugged for days and never had a clock loop.
I have had a C drive image with a pre Xbox live dash, an XFT hex edited dash and big fonts 25 that I have been using to mod my friends Xboxes since last year. Every time someone wants me to soft mod their Xbox I just use MechAssualt to boot EvoX and replace their C drive with this image. I have never had a problem with this and had tested the clock loop so many time that I always guaranteed my friends, sure man you will be running Xbox Media Center with no problems after this, leaving your Xbox unplugged is no problem. I had tested this so many times with all versions of Xboxes that I knew that people who got clock loops had done something wrong.
My brother rang me up the other day and informed me of my first Xbox clock loop. He didnt know what was wrong with his Xbox, but after describing the symptoms I knew straight away that it was a clock loop. After months of being cocky about how bullet proof my clock soft mod image was I got very worried about my other friends that might get the same problem.
After many hours of frustration in getting a hotswap to work, getting the right DLLs, timing the cable swap etc. I renamed bert.xtf to berf.xtf.old and ernie.xtf to ernie.xtf.old put the Xbox back together and was amazed that it was still looping because how could the hack be affecting it when the fonts have been renamed.
It suddenly hit me why all these people have been getting clock loops that they cant get out of.
You do not have Xbox.xtf and Xbox Book.xtf and this is what is causing the Xbox to crash and reboot not the hack. Some soft mod tuts out there tell you to delete these fonts and some tell you to rename them to xft. I had tested big fonts 25 so well with every version of an Xbox 1.0 to 1.3 that I knew the never looped permanently that I was safe to mod other peoples boxes. Breaking my own stuff and then having to fix it has never worried me, but I never wanted to break someone elses stuff.
A few months ago I changed my C drive image that I use to soft mod Xboxes with to upgrade Phoenix, but in the process I deleted Xbox.xtf and Xbox Book.xtf as I though that I would never need them but I didnt think about if I loose the clocks time.
Big fonts 25 have never failed for me in setting the time to 4th of July when the clock is dead, but when there is no Xbox.xtf or Xbox Book.xtf the Xbox loops for a completely different reason.
P.S.
If you are in a clock loop that needs a hotswap hours of frustration can be avoided by following these simple steps.
1. Plug a power cable from your PC into the Xbox hard drive.
2. Unplug your Xbox DVD drive from the IDE cable.
3. Power up the PC and press Pause/Break before the PC detects your hard drives.
4. Power up the Xbox.
5. When the Xbox LED is flashing RED-GREEN then you know the hard drive is unlocked.
6. Unplug the IDE cable from the Xbox hard drive and plug it into your PC.
7. Press enter to then detect the hard drives on your PC.
Now you have an unlocked hard drive attached to your PC.