[8125, K-JAM, P4300, MDA Vario General] wildswan:
I'm posting this as a new thread because it relates to a number of issues and I didn't see any single thread that seems to cover the combination.

I just bought a T-Mobile MDA (US) and I really need to unlock, upgrade to t-mobile ROM 2.26, and then download the fix mentioned here (http://xdaforums.com/viewtopic.php?t=38898&highlight=) to make this MDA compatible with both WLAN 802.11b and g.

I absolutely have to accomplish this within the next 5 days (before I leave to do a photo shoot in Germany) because I intend to use the phone as a modem to send large files (800+KB) to clients using the internet, and its too slow and too expensive to do this while roaming on a US SIM card!

Relevant phone specs:

T-mobile MDA (US)

IPL/SPL unknown

ROM ver 1.8.10.2WWE

ROM date 12/10/05

Radio ver 01.09.10

Protocol ver 4.0.13.20

Ext ROM ver 1.8.10.104

I have read many of the posts on this forum, especially the lokiwiz threads, and others relating to upgrading and wi-fi, and I think I am about ready to give it a try. But, I'm pretty nervous. This is my first experience with an MDA (or any PDA type device) and I’m afraid I might really screw something up then not have the use of the phone at all. Could someone please look over what I plan to do and let me know if I’m about to toast my MDA? All warnings and advice will be greatly appreciated.

STEP 1: Based on everything I've read, it appears that I need to first unlock the SIM AND CID using lokiwiz ver 0.2b before I upgrade the ROM. I may not need to unlock the CID at all, but since I’m not sure about that, and since it appears that once I upgrade the ROM to ver 2.26 the lokiwiz programs will not unlock the CID, I figure I’d better do it first.

STEP 2: Do I need to download the NewROMUpdate Utility_Wizard_NoID.exe? I’m guessing that I don’t need it to do the T-Mobile upgrade since it’s an official rom straight from the t-mobile website, but am I going to need to download this before I can do the WLAN fix?

STEP 3: Upgrade to the t-mobile ROM ver 2.26. I’m not sure if the upgrade will affect the IPL/SPL versions, but I’m assuming that if it does, it will affect them in such a way that they will both still be the same version. I’m concerned about this only because I’ve read that I should not switch to a different carrier (ie. T-Punkt or Vodofone) if not CID unlocked, and I should not change IPL or OS only, and I can only CID unlock when both the IPL and SPL are the same version. Violating any of these rules can toast my MDA??

To complicate the matter, I don't know what the current IPL/SPL version(s) is and I don't know how to find out.

STEP 4: Assuming Steps 1 - 3 go smoothly, (eternal optimist here) I’m would then download the DJVW HTC Wizard Optimizer 2.0.cab to enable the 11g wi-fi.

Now, what are the chances that I can execute all this in the next few days without toasting my MDA,, or if not toast, something more like dried bread? Could someone please help me out with this? Am I going in the right direction (i.e. unlock with v 0.2b first, then upgrade ROM to 2.26, then download wi-fi fix)? Will I need the NewROMUpdate Utility_Wizard_NoID.exe to do this?

PLEASE HELP????