Upgrading to 4.00.16 for T-Mobile - MDA, XDA, 1010 Software Upgrading

I'm sick of waiting for an answer from T-Mobile on when WM2003 will be available for the PPCPhone Edition, if at all, so I decided to create an executable of 4.00.16 at Jeff's kitchen.
I'm a little freaky about installing it. So before I do I would like to know (1) problems encountered from those that have done the upgrade and (2) the exact instructions on how to return back to my original T-Mobile OS ROM.
I know there are many of you out there that feel the same anguish regarding T-Mobile's lack of information regarding WM2003 & the hopes of better software that improves the PPC's ability to connect via GPRS (it sucks now) and overall performance. After all, we spent a load of money on this sucker.
Thank you in advance to all the gurus out there who answer this for the rest of us

If you install the XDAtools, you can create a backup of your ROM through ActiveSync. If at any time you click on the backup file, you will be offered the option of burning it back into your device.
However: since your new ROM is 4.00.16, you need to know there is a problem: you cannot use the normal upgrade program called "Programme A" to move away from 4.00.16. But you can use the option in the XDAtools to write your old old OS to an SD card using the XDA (all files on the SD-card will be erased in the process). Then you can boot the device in bootloader mode and press the center of the rocker switch to load your old OS.
My guess is you'll be almost perfectly happy with 4.00.16 though (at least happier than with any 3.x ROM) . Just be aware of the one remaining problem: occasional SD-card erasures have been reported by some people (they do not seem to affect everyone), so do not store valuable data on SD without backup.

I upgraded to 4.00.16 yesterday and still can't get GPRS to work. Sometimes it says it connects but I can't get to anything and other times it gives me an error trying to connect. I've been trying everything I can think of for GPRS settings. I'm on T-Mobile in Atlanta with Radio version 6.18.00. I'm not sure if you will have the same problem or not.

I had trouble connecting through GPRS too at one point where I thought it was ROM 4.00.16. But I finally did connect.
One of the major reasons for upgrading was an expected improvement in GPRS performance. If anything, it got worse. Do I have to upgrade the radio rom too for improvement in GPRS?

rfeagin:
I had similar problems following the upgrade, and as an afterthought I went to my local TMo store and exchanged my SIM chip. Mine was three years old, and the new SIM fixed the problem. Also, if you upgrade the radio stack to 6.24 or the AT&T stack, you will gain persistent GPRS connectivity.
David

SO the TMo store will swap sim cards with me if I go in and tell them I want a new one? Also... where can I find the radio stack 6.24 stack or the AT&T?
Thanks for your help. I really would like to get this working again.

I've heard that its very difficult if at all possible to downgrade the Radio ROM back to its normal state. This is why I have not done it yet.

I posted instructions in the following thread for locating and installing the 6.24 radio stack: http://xda-developers.com/phpBB/viewtopic.php?t=2452&highlight=. If you would like the AT&T files (I prefer the TMo files), send me a PM and I will help you get them.
Downgrading radio stacks is difficult, and maybe impossible in some cases, but as long as you have the four files listed in the referenced thread, it seems to work well.
David

I backed up my original ROM on an SD Card so I could revert back to it from 4.00.16. I tired to revert back today but for some reason the image is not on the SD card. Now what?
How can I get my old T-Mobile ROM back? Any ideas?

If you have a Card Reader, you can use XDATools to burn a rom image onto it, then use that image to reload your XDA via the SDCard method...
I just bought a SDCard reader from WalMart, for 19 bucks, it is a Lexar JumpDrive Trio, and it can read SD cards, XD CArds, and Sony Memorystick, and it is USB 2.0..
It is nice, albeit a bit flimsy..
But it works.
B

camarao said:
How can I get my old T-Mobile ROM back? Any ideas?
Click to expand...
Click to collapse
Yes, you can download it from here:
Current T-Mobile 2002 ROM Update:
http://www.t-mobile.com/products/handhelds/pocketpc/downloads.asp
Will upgrade to this version:
ROM version: 3.14.40 ENG
ROM date: 11/26/02
Radio: 6.18
Protocol: 324e4
HTH

camarao said:
I'm sick of waiting for an answer from T-Mobile on when WM2003 will be available for the PPCPhone Edition, if at all, so I decided to create an executable of 4.00.16 at Jeff's kitchen.
Click to expand...
Click to collapse
Is there anywhere the more adventurous among the non-linux population can try this baby?
Cato

Qman:
Are you saying that I will be able to download and install the T-Mobile executable over my 4.00.16 version?

camarao said:
Qman:
Are you saying that I will be able to download and install the T-Mobile executable over my 4.00.16 version?
Click to expand...
Click to collapse
I'm not sure about if the executable will work or not but if does fail you can always use the bootloader method!

Related

Putting a different ROM on after 4.00.16

I was curious. I've noticed people said that if you put the 4.00.16 ROM on, the only way you can downgrade it, is if you reprogram the ROM from the SD card and not by the EXE method.
I was curious as to WHY? What does that .16 ROM do to the XDA to prevent you from doing an EXE rom reprogram?
So far, we lacked time to look into this one. Tell us, and we'll see if we can fix it.
Downgrade unseccesful using SD method from 4.00.16 ver
Sorry if this is OOT: I'm a non techie person so please somebody explain me how to use the SD card reflash metod to downgrade from 4.00.16 bact to 4.00.11 version. If write the new rom to sd using XDAtools it's done. after it I put it back the SD card back to the XDA. I enter the wallaby 5.17 screen by pressing power+ soft reset button. It said wait and then GSM ok after that freezze.
What I'm missing?
The why, I can't say as I have not investigated in detail, I just said to heck with it and bought a SD writer.
What happens after you load 4.00.05 and 4.00.16 is when you try to run and upgrade/downgrade/re-install from Prgramme-A or the newer programmer that came with the 4.00.x installs it fails saying it can't connect to the device, please check to make sure it's plugged in (even though there is a active connection with Activesync).
Using the SD card there is no issue with running the upgrade.
-rich
but what is it that .16 has that .11 doesn't that stops you from changing ROMs via the EXE method?
Also, after putting on .16 and you go back to say .11 via the SD boot method, are you able to use the EXE method to change ROMs after that?
Currently I use the AT&T A20 radio stack and was thinking about trying out the Tmobile 6.24 to see how it works out. Haven't decided yet.
Investigating the no reflash .EXE method
Ok I have found a roundabout method to resolve this only using the .EXE method.
I used the rom kitchen to generate me a 4.00.11 ENG WM2003. After flashing my phone and wanting to make sure i could revert I tried my origonal o2 provided flash upgrader "Radio_Unit_Upgrade_v31413.exe" and the latest downloaded one from the o2 website "Radio_Unit_Upgrade_v31703.exe" neither of which would let me flash them - i get the error "this rom is not for this device" (or some such).
I went back to the rom kitchen and built myself a 3.17.03 ENG O2-Euro rom image and flashed that onto the phone. this suceeded where the o2 stock .EXE failed and I was nearly back where I started.
Now that I had my rom kitchen 3.17.03 back on I tried to install the latest "Radio_Unit_Upgrade_v31703.exe" file again and was greeted with sucess once more!
The question this begs is the same as the origonal however, ok we can get the stock provider rom back on - but why will it let me flash the rom kitchen 3.17.03 back on and not my o2 downloaded rom? Hopefully the developers will be able to spot whats going on and sort it out in the kitchen (hopefully removing what ever right protection the new rom installs).
Hope this helps, shout if you want me to test with a specific rom version (for uk / europe phones) and ill give it a whirl for ya
I think the "official" rom checks for versions, whereas the roms from the kitchen use a modified bit of code called "adaptrom" to fool the software. I wish I had a tenth of the capabilities of the guys on here that work out all this stuff.
cruisin-thru said:
I think the "official" rom checks for versions, whereas the roms from the kitchen use a modified bit of code called "adaptrom" to fool the software. I wish I had a tenth of the capabilities of the guys on here that work out all this stuff.
Click to expand...
Click to collapse
I'm not sure about this, but i will give you some hint, ok :?
The T-Mobile Rom has a protection to it that you can not upgrade any ROM except T-Mobile ROM's other than that if you have a version of rom that is not T-Mobile ROM you can use the adaptrom to normally update any kind of ROM because adaptrom ignores the Version like PW10A1:007, the explanation of this versioning is in this forum(some kind of country and GSM band 1800/900, 1900/900).
Now why we have to use SD card after we update T-mobile ROMs, if we want to change to another kind of ROM's, because if we use "exe" or sometimes we called it "Program A" it checks the version of the ROM's, since the adaptrom can ignore only the version of the ROM's it can ignore the Type of ROM's, if it is T-Mobile or other ROM's, now for SD card it doesn't check for any version or type, and it goes directly to updating the ROM's in the Bootloader way or we can call it forcely updating the ROM'
s.
Hop this help.
Hi Guys,
I need your help .
I've downloaded the 4.00.16 ROM by mistake, it really didn't tell the ROM number, so now I want to revert to a earlier one and I can't.
I've got the following message: "ERROR: GetDeviceData - An established connection was aborted by the software in your host machine.
error getting devicedata"
and then
"ERROR 011: EXECUTE REMOTE COMMUNICATION PROGRAM ERROR. Cannot execute the remote communication program. Please make sure that the USB/Serial cable is properly connected."
Stupidly, I haven't got a SD card. :evil:
PLEASE HELP ME, I'M REALLY STUCK NOW AND DON'T KNOW WHAT TO DO...
Read the above post that starts like:
"Ok I have found a roundabout method to resolve this only using the .EXE method"
HTH
Qman said:
Read the above post that starts like:
"Ok I have found a roundabout method to resolve this only using the .EXE method"
HTH
Click to expand...
Click to collapse
Hi Qman,
No matter which ROM I cook, when I try to install it using the .EXE it gives me the message I posted before.
Would you explain to me, idiots guide, how to flash not using a .EXE?
or, have you got any sugestions?

Newbies, ROM 4.00.05 -> 4.01.00, Wallaby 5.17 (Oceania/As

Hi All,
After a LOT of reading and mucking about, I've been able to update my ROM, get full use of GPRS and revert back to the manufacturer's ROM. There are a number of instructions, some of which are pretty dangerous. The following forum topic is the invaluable guide you need to read if you wish to revert back from a T-Mobile installation :
http://xda-developers.com/forum/viewtopic.php?t=3274
The place to get your ROM's is http://www.yorch.net, from the ROM Kitchen. Use the XDA Tools from the above forum link to burn ROM's you download from Yorch's onto your beloved XDA (use the .nb1 format, NOT the .exe method and burn using XDA Tools through your USB cradle).
I happen to have the 5.17 Wallaby bootloader which means that it will not let you simply whack in an SD card with a new O/S and burn off a backup ROM, it won't happen. Don't try to upgrade your Wallaby bootloader. The safest method is to use the Wallaby bootloader patch which can be downloaded from a link at the top of the forum topic link I posted above. That allows you to do a simple O/S restore from your SD card, providing you have an SD reader which presents your SD card as a new drive on your computer. The instructions are simple, just use xdrit as per the instructions in the forum topic link above.
So, from my experience I backed up my original ROM using XDA Tools and stored it on my hard disk in .nb1 format. I then downloaded the .nb1 for 4.00.16 and installed it using XDA Tools without a hitch. Everything worked fine, but I wasn't comfortable until I knew I could revert back to my original ROM. So my next step was to write the Wallaby Patch tool onto my SD card using xdrit using the instructions as laid out in the forum topic link above (take note, use the 1K header option in xdrit). The SD card reader I used was an X-Drive that you normally use for digital camera style stuff. Once written, I put the SD card in the XDA and did the bootloader boot (hold the power button whilst pressing the reset button), and was then given the option to press the Action key to go into the diagnostic mode which is where the patch program resides.
I then took the SD card out, leaving the diagnostic screen still open, put the card back into the X-Drive, formatted it using default options in Windows XP, then wrote the ROM backup I had (you can use any ROM here) onto the SD using xdrit, selecting the 3.5K header option (because we are still using Wallaby 5.17 regardless of patching). The last major step was to place the SD card back into the XDA and select Restore SD and accepted the risk notices. The restore appeared to go fine, but at the end it said Incorrect CRC. That in itself is a worry, but I had at least restored to a point where I could burn whatever ROM I like using the simple XDA Tools method, which is exactly what I did after reviewing the connection info (once more), going to 4.00.05.
Before I originally went to 4.00.16 I recorded all my connection details, including proxy info. When I went to 4.00.16 and re-entered all the gprs info, I found that the internet worked, but MSN Messenger would not connect, stating that the proxy info was incorrect - even though the values were exactly as originally setup. That was one major reason for wanting to go to another ROM. However when I ultimately got 4.00.05 on, I kept getting exactly the same error message with MSN Messenger. The answer came from a hint in another forum topic where someone (with AT&T I think it was) said not to put anything in the proxy info. That did the trick. Un-ticking the proxy option allowed the internet and MSN Messenger to work perfectly.
For Telstra GPRS (I think this is universal) the access point name is : telstra.wap.mnc001.mcc505.gprs
GPRS Authentication method is PAP authentication.
Hopefully this info might help someone out there, because I spent close on 8 hours sweating over trying to get my original ROM back up and running.
Oh yeah, thanks to the XDA Developers, Yorch and the whole XDA community. ROM updating really is easy when you've got the right info, and I can tell you it's really worth upgrading to PPC 2003 (WM2003?), it seems so much more stable, my GPRS has never stayed on as long and it's fun! You can get creative in the ROM kitchens (such as http://www.yorch.net), adding the software you like.
Just a piece of advice, search the threads for problems with any ROM you want to try out first so that you know the traps before it's having a party on your XDA at your sanity's expense.
I have some more observations now that I'm getting more comfortable with doing ROM updates. There are some advantages in going from the 4.00.05 ROM to 4.00.21, such as button lockout while off.
When I initially did the 4.00.21 upgrade I happened to go into the "band" option in phone settings and left the options unselected. Unfortunately setting this to nothing defaults to USA which is totally incompatible with Australia. The result was the phone would not synchronize and I could no longer go into phone settings. The fix for this scenario can be found in this thread : http://xda-developers.com/phpBB/viewtopic.php?t=2893&sid=1e7be62705d2831332c7f0bd5a75e364. It's standard stuff to the die-hards, the scariest thing in the world for us newbies.
Once you set the band for Australia (same as Europe - 900/1800 I think it is) you then get a signal, can synchronize and start customizing your settings. You can get rid of most of the T-Mobile garbage, so far everything is working fine.
Thanks for that buddy, i'm about to do the same downgrade tonight (once Yorch's kitchen is back working properly). You saved me many many hours of pain!
Thanks to all who add to these wonderful forums.
Steve
Just to keep this info updated for the Aussies (and same applies for Asians, and Europe too I think), basically the same applies for 4.01.00 as I explained for 4.00.21 further back. 4.01.00 seems much the same as 4.00.21 at the moment.
Hi guys,
I have a similar set-up as yours, ie I am in Australia nd I upgraded my rom to a 4.00.16. I would like to downgrade it to the original O2 one as I have to return the phone to my company (I am being made redundant).
I tried the method you described but I failed. Basically, I can write the patch on the SD card and when I put it back into the device nothing changes...
Could you please be more specific as to what you did ? Typically, did you switch off the device then put the card then stop/soft-reset or else ?
As well, I only have the NBF version of the O2 rom that I got from the update on their site. Do you think it works or should I try to find a "pure" NB1 rom (I think there's one on Yorch's website).
Thanks a lot in advance for your help.
Bob.
Hi Bob,
Sorry to hear you have to give up your XDA, hope you have replacement work for your redundancy.
Once you have written the Wallaby Patch onto the SD card using XDRIT you reset the device using the stylus and hold down the power button at the same time (with the SD card with the patch in place). That will load into bootload mode, and you press the action button at that point to actually go into the patch.
Once the patch has loaded you leave the device on, and remove the SD card, write your ROM image onto it using XDRIT, and place the SD card back into the phone. On the patch screen select "Restore from SD" using the little directional arrows button below the phone screen. It will then ask you to confirm, then you will see the progress - it takes about 5-7 minutes.
The details on how to write the patch and write ROM's are further up in this thread. I think you can use the NBF file but I am not certain. If you don't want to risk using an NBF you can use the same method above, but revert to the 3.17 ROM from Yorch, then you should be able to use the ROM upgrade from O2 to get a clean install of the manufacturer's ROM.
Let us know if you have any problems.
Thanks Mate.
I have tried once again to patch my Wallaby 5.17 (funny name, isn't it...). It failed. Once I go into the bootloader and press the OK button, I get to the diagnostics screen and nothing else is happening.
Could you shed some light on this ?
Thx.
Bob.
Re-reading your posts...
Would it be possible for you to send me the wallaby patch tool you used ? I tried the one from here (http://xda-developers.com/XDArit/wallaby-patch-tool.nb2), as is and renamed to nb0, but it seems to be the key.
Basically, even though I get the following message : "Successfully copied image of 514 blocks", after having chosen the 1k header, as it's explained in the very detailed post you mention, I still get to the diagnostics screen instead of the patch one...
Thx again in advance for any help.
Bob.[/img]
I tried the one from here (http://xda-developers.com/XDArit/wallaby-patch-tool.nb2), as is and renamed to nb0, but it seems to be the key
Click to expand...
Click to collapse
Hmm, I had no problem at all with the bootloader... one thing though is that you don't rename the .nb2 to .nb0, you use the file as-is. In XDARIT you should be able to select the .nb2 file to write to SD.
It is a diagnostics screen that you get to, that is the purpose of the patch. In that diagnostics screen should be options such as backup ROM to SD and restore ROM from SD. If it still doesn't work for you then maybe I should send you the versions of the patch and XDARIT that worked for me.
Hi,
I am using the O2 3.20.06 ENG ROM and 4.21.00 Radio. Do you think I can upgrade to 4.00.21 ROM directly?
Should I just run the exe file from the Yorch.net? Is it that simple?
What about the radio? Do I have to install a new one or is the 4.00.21 ROM included the radio?
Also, why people need to upgrade bootloader to higher version? I am using bootloader 5.15.
Thanks very much in advanced.
Well, I wouldn't use an exe for upgrading, and I wouldn't try upgrading the radio unless it's an official one posted by your supplier.
Use a .nb1 ROM from yorch and use XDA-TOOLS to do the ROM upgrade. Remember that if you go to a T-Mobile ROM you will need to use the SD card method to change to a different ROM.
Don't try upgrading your bootloader, 5.15 is fine. It's the higher versions that can be problematic and require the patch.
Thanks very much for your reply.
I am about to upgrade my device.
Just a few more questions,
1. Is this 4.00.21 ROM worked okay with the 4.21 Radio in Asia?
2. Also, other encounter a problem with SD card with this new 4.00.21 ROM, have you find any? (every 48 hrs the device wipe out the data in the SD card!)
3. It seems to me when using SD card method to change ROM with bootloader 5.15, the procedure is the same as upgrading or downgrading, isn't it?
4. The file from Yorch.net "upgrade" is only nbf file. It's not nb1. Is it the same?
Cheers,
Hi Chris
1. Yes, 4.00.21 does work fine with the 4.21 radio. I've touched on moving from 900/1900 to 900/1800 band if you should strike that problem.
2. Funny thing that, but I just checked and my SD card is erased after some 3 weeks of no problems.
3. Yes.
4. I do know that if you make a ROM in Yorch's kitchen you can choose .nb1. If you download an 'upgrade' I'm not quite sure what you get.
Not successful with the upgrade
Thanks so much for your reply.
From Yorch.net "upgrade", I can only get the 4.00.21 nbf file which is not nb1.
I can't use xdarit to burn that rom to SD card, an error occurred. But when I use the new OSImagetool, I can burn the ROM to the SD card and I can even change the name to nb1 file.
For both cases (nbf or nb1 file), I put the SD card in my device and press to the bootloading mode, nothing happen!
The device can't detect there is a ROM upgrade there. How can I do that?
Chris,
You need to download the .nb1 from the Rom Kitchen link on Yorch, not from the upgrades link, if all you are getting is a .nbf. With .nb1 you can use the osimage tool or xdrit with the sd method.
The bootloader will not restore from sd unless you have a correctly written image. In Yorch's kitchen you will see that .nbf is tagged for advanced users, that's a strong hint that different methods need to be used to install those.
I see....
Thanks v much.
Sorry for the delay in reply but I had gone back to Europe for Christmas.
I would be happy to use your wallaby patch file as mine doesn't seem to work. You can mail it to me on [email protected].
Thanks in advance for your help,
Bob.
Ok Bob, I'll send it in a few days when I get back to a PC. But I can guarantee it's the same patch that I linked back to in this thread.

xda.weblink.net 4.01.16 upgrades to 3.16?

I just want to check that this is correct since I'm new at this. I cooked a rom on xda.weblink.net and selected the t-mobile 4.01.16 rom and all the options i want and selected the .exe option. Then when I run the .exe and im about to click upgrade it says I will be upgrading to rom 3.16 (attached screenshot). i thought i was upgrading to 4.01.16?
Do not worry!
ignore the info and go ahead, you will get 4.01.16
after all the problems i've heard about, i wonder if i shouldnt just use the SD card method. This is my only phone and without it I am screwed! Does the SD card method update the radio like this one does?
The sd card method is used with the ce part of the rom, if your radio stack is working ok I suggest you leave it alone. I think the reason the screen says it is installing a different version is because it is patching code so the rom is accepted rather than being rejected because of a mismatch of country/rom/version etc.
i've heard that the radio stack for this version will increase gprs speed

Radio Stack

Hello
Been here for awhile just reading and reading. As with some peeps I went and did an upgrade from my provider and am running the following.
Rom Ver - A.30.09.ENG
Radio - A.33.03
Protocol - 1.3.3
The Phone came with PPC 2002 on it. When I saw that my provider had an upgrade I just d/led it and installed it. After the upgrade, the unit worked great but the volume had issues and the signal strength seems to be less than is was with the previous radio. Is there any way to go back to the older radio stack version but still keep the updated ROM??? I have since been to Lumpi's and messed around with cooked ROMS. Now I can't even run the providers upgrade again because it says I have the wrong ROM. Any help would be great!
edit: What I really want to do is run the rogers ontario upgrade ROM with the old radio stack. Again any help would be great.
If you go to lumpis kitchen, cook a rom that contans all you want either 2002 or wm2003, at the bottom of the page choose sd card flashing, this will give you a zipped nbf file, unzip it and use xdatools to program an sd card with the rom image, you choose the nbf as source and from the drop down choose your card reader writer, once programmed place in xda, push reset while holding power, push action key when prompted, this will overwrite your rom without giving country protection or version error, charge your xda first.
Not sure what to say here. As I stated in my original post, I have been to Lumpi's kitchen. He doesn't have the ROM for Rogers Wireless in Canada, he has an older one for Rogers AT&T which is no longer. He also doesn't have any RSU's just ROM's. However this is not my question. I can live with that. As I stated, I would really like to downgrade the radio stack. I seemed to get better signal strength and less dropped calls when I had the previous version. Had I known that when I got the Rogers Wireless upgrade, it was going to upgrade the RSU as well, I wouldn't have done it. Thanks

Att to Tmobile Help

I just bought a SX56 From ATT and want to change the Rom to T-mobile. I searched all this forum but everythig seem dificult to understand. Can Some one help me find an origianl rom for T-Mobile. And can give me a link on how to update it using SD Card.
Att wont work correctly with my Tmobile card. My neighbor is using the Att phone with a Tmobile rom and works bette than mine. (reception wise)
search for the word(s) ROM Kitchen.
Or just click here
http://xda.weblink.net/
or here
http://lumpistefan.dyndns.org/
or here
http://www.Yorch.net
Just browse around alot. There are thousands of pages to go through. Don't be afraid. Get a pack of smokes, some liquer, and start reading. Just after your brain goes numb, read a litte more, take a shot, and then do some stretches and get back to it.
Understand that the MDA is actually two devices in one. There is a radio and a PDA. You can upgrade one or both, at the same time or not. Flashing can be extremely dangerous. The bootloader the worst, radio second, and OS least. If you can just get the EXE for Tmo, it should flash both RIL and OS in the least painful way (it still hurts though). Also the latest Rom (to my knowledge) is 4.01.16. Good luck!
Thanks, hope i find what im looking for.
One last question. Which is the original ATT Rom. I only see T-Mobile and some o2. Just incase this doest work for me i want to put the original Rom back and poss. sell it.
Does Siemens have the origianl Rom.
Rom Kitchens
There are very few good working rom kitchens, in fact lumpistefans is the only I know of at the moment.
The ATT roms seem to have dissapeared lately. Lumpistefans has a single ATT rom all the way at the bottom. A.30.09
That rom works fine on my SX56 right now.
I have installed the latest ENG T-mobile rom on another SX56 and it works just fine under T-Mobile.
Get XDAtools from here and make sure you get the full one with Programma A and the Bootloader files. Put your SD in a SD card reader attached to your PC and then use XDAtools to put the .NB file you get from the rom kitchen onto the SD. XDAtools should put the bootloader files on it automatically. Then just put it into the SX56 and reset it. It should ask you if you want to flash the device and press the action key. 10 minutes later you should have a nice new T-Mobile phone. Just remember DO NOT put it in the cradle or touch it in any way shape or form while it is flashing. Just leave the thing alone till its done. If you do that, then you should be safe.
Thats really all there is to it.
You may need to update the radio for it to work more efficiently on T-mobile's network, I don't know. Also, you should back up your current ROM and RIL to SD or MMC, copy to PC, and burn it to CD, FYI, IMHO.
(I wanted to see how many accronyms I could use in a row, and still make sense)
In anycase, if you backup your device first, you won't have to worry about what roms are not available later, and that you will have one to work on your device, should you want to sell it as an SX56. Also, ATT just got bought by Cingular, and ATT is phasing out, which might explain the lack of ROMs ?????

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