[8125, K-JAM, P4300, MDA Vario Software Upgrading] mengesb:
This is the code from lokiwiz:

C:\Documents and Settings\MengesB\Desktop\New Folder>Lokiwiz.bat
machinagod's HTC Wizard Unlocker v0.2
NOW WITH CID Unlocking POWER!
--------------------
WARNING: This tool is highly experimental!
I will NOT be held responsible for any problems caused by this tool.
--------------------
Thanks to xda-developers, spv-developers, and especially itsme by the work they

released. This solution would not be possible without them.
--------------------
U. Unlock
L. Lock
C. CID Unlock (SuperCID)
Q. Quit
--------------------
Type the letter and press Enter: U

Unlocking mobile... DO NOT DISCONNECT UNTIL THE PHONE REBOOTS!
Copying C:\Documents and Settings\MengesB\Desktop\New Folder\Utils\itsutils.dll
to WCE:\windows\itsutils.dll
CopyTFFSToFile(0x0, 0x10000, lock_backup.bin)
g=78: 0043bbc5 - 9519c7a3459aaf60
Key idx: 78
olddata: cf30320b42870681Unlocking... newdata: dee342037c9d3bd3
newsum=4a89850e encsum=add2675de7343d5d
DONE.
This exe file was created with the evaluation version of Perl2Exe.
For more information visit http://www.indigostar.com
(The full version does not display this message with a 2 second delay.)
...
CopyFileToTFFS(unlocked.bin:0, 0, 00010000)
result=80072746
Your phone is now unlocked....
Store the generated 'lock_backup.bin' file in a safe place. It can help to resto
re your device if anything goes wrong.
ECHO is off.
"Standing on the shoulder of giants"
Ricardo Afonso, 2005

C:\Documents and Settings\MengesB\Desktop\New Folder>Lokiwiz.bat
machinagod's HTC Wizard Unlocker v0.2
NOW WITH CID Unlocking POWER!
--------------------
WARNING: This tool is highly experimental!
I will NOT be held responsible for any problems caused by this tool.
--------------------
Thanks to xda-developers, spv-developers, and especially itsme by the work they

released. This solution would not be possible without them.
--------------------
U. Unlock
L. Lock
C. CID Unlock (SuperCID)
Q. Quit
--------------------
Type the letter and press Enter: C

CID unlocking mobile... DO NOT DISCONNECT UNTIL THE PHONE REBOOTS!
CopyTFFSToFile(0x0, 0x10000, lock_backup.bin)
g=78: 4a89850e - add2675de7343d5d
Key idx: 78
olddata: 5a59d28bc2764cc8460f100469464259621e8365aeb43277cf2858b925828379
newdata: 95ea23df0bf16432cf7be60912a5cbdedee342037c9d3bd3dee342037c9d3bd3
newsum=30bee074 encsum=b2a1355d0d25fe1c

This exe file was created with the evaluation version of Perl2Exe.
For more information visit http://www.indigostar.com
(The full version does not display this message with a 2 second delay.)
...
CopyFileToTFFS(cidunlocked.bin:0, 0, 00010000)
result=80072746
Your phone is now CID unlocked....
Store the generated 'lock_backup.bin' file in a safe place. It can help to resto
re your device if anything goes wrong.
ECHO is off.
"Standing on the shoulder of giants"
Ricardo Afonso, 2005

The top portion of the copy/paste shows the SIM unlock, notice the input. The SECOND portion (lower half) is a CID unlock. To update the ROM on a Cingular 8125, which is CID locked, you will have to unlock the CID, for my particular version it was C for CID unlock. Please note - this will VOID your warranty - so do so at your own risk.