O2 Trion and T-Mobile Vario II ->ROM upgrade to HTC TyTn - 8525, TyTN, MDA Vario II, JasJam Software Upgradin

Hi all,
I'm quite new at ROM upgrading, so I apologize if any of my questions will be annoying to anyone.
I am about to buy O2 XDA Trion or T-Mobile MDA Vario II in Germany, and I plan to flash English ROM on it.
So here are the questions:
1. Will any type of ROM work on this brands of device ?
(Can I flash HTC TyTn English ROM on them. If not which ROM's can I use? Which one do you recommend?)
2. Will flashing new ROM unlock SIM ?
(If not, can you recommend me some good tool or method)
3. After upgrade to English ROM, will everything be in English ?
(Including all OS+Office apps. and keyboard layout, or do I have to set registry keys manually after?)
4. Which is the last known stable English HTC TyTn ROM (or O2 English) ?
(that it's enabling HSDPA also)
5. How to extract original ROM from device ?
(itsutils tool, or is there some better solution ?)
6. What is the benefit of Extended ROM ?
(does it exist Extended HTC TyTn ROM ?)
Already searched on forum, but still couldn't find answers to some of my questions. Anyway, I want to be sure before I do it.
I would appreciate any answers and/or advice.
Thank you all in advance.

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Re: O2 Trion and T-Mobile Vario II ->ROM upgrade to HTC T
Mad_M said:
1. Will any type of ROM work on this brands of device ?
Click to expand...
Click to collapse
Any of the ROMs listed here will be fine:
http://wiki.xda-developers.com/index.php?pagename=Hermes_Upgrades
Mad_M said:
2. Will flashing new ROM unlock SIM ?
(If not, can you recommend me some good tool or method)
Click to expand...
Click to collapse
No, it will not, but most probably your device will be Sim Unlocked.
If it is not, there is no free way of unlocking it *yet*, you can SIM Unlock it using imei-check service for 20pounds. See more info here:
http://wiki.xda-developers.com/index.php?pagename=Hermes_SimUnlock
Mad_M said:
3. After upgrade to English ROM, will everything be in English ?
(Including all OS+Office apps. and keyboard layout, or do I have to set registry keys manually after?)
Click to expand...
Click to collapse
Everything will be in english, but in German O2 trion you have an AZERTY keyboard (mapped to QWERTY after upgrade). If you want it to be AZERTY again you can change the layout using the keyboard registry hack found here:
http://wiki.xda-developers.com/index.php?pagename=Hermes_Registry
Mad_M said:
4. Which is the last known stable English HTC TyTn ROM (or O2 English) ?
(that it's enabling HSDPA also)
Click to expand...
Click to collapse
Again, see this page for the latest roms:
http://wiki.xda-developers.com/index.php?pagename=Hermes_Upgrades
Most of the roms come with HSDPA enabled, and if it is not, you can enable it using SetHSDPA /enable or fit4cat hermes tweaker, see more info here:
http://wiki.xda-developers.com/index.php?pagename=Hermes_Utils
Mad_M said:
5. How to extract original ROM from device ?
(itsutils tool, or is there some better solution ?)
Click to expand...
Click to collapse
Info is here:
http://wiki.xda-developers.com/index.php?pagename=Hermes_HowtoDumpRom
You can dump the original rom, but you cannot flash it back... most probably this will be quite unuseful for you.
Mad_M said:
6. What is the benefit of Extended ROM ?
(does it exist Extended HTC TyTn ROM ?)
Click to expand...
Click to collapse
Read this:
http://wiki.xda-developers.com/index.php?pagename=Hermes_For_Beginners
And this:
http://wiki.xda-developers.com/index.php?pagename=Hermes_ExtendedRoms
Mad_M said:
Already searched on forum, but still couldn't find answers to some of my questions. Anyway, I want to be sure before I do it.
Click to expand...
Click to collapse
2nd Sticky post points you to the wiki, all my answers point you to the wiki because all your questions are answered there, so you have to read the wiki
http://wiki.xda-developers.com/index.php?pagename=HTC_Hermes

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Re: O2 Trion and T-Mobile Vario II ->ROM upgrade to HTC T
Thanks Pof for quick answers !
Correct me if I understood it wrong, any ROM (HTC, O2 English, I-mate etc.) should work with both brands (O2, T-Mobile) ?
How can I then fall back to original ROM (if I would need it for warranty reasons) ?
Is the Extended ROM must, or can I live without it also ?

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Re: O2 Trion and T-Mobile Vario II ->ROM upgrade to HTC T
Mad_M said:
Correct me if I understood it wrong, any ROM (HTC, O2 English, I-mate etc.) should work with both brands (O2, T-Mobile) ?
Click to expand...
Click to collapse
That's right, you will get a Vendor ID when upgrading, you just need to run the upgrade utility twice without disconnecting your device. This is explained in the wiki too.
Mad_M said:
How can I then fall back to original ROM (if I would need it for warranty reasons) ?
Click to expand...
Click to collapse
As O2 or T-Mobile has not released any rom upgrade yet, you cannot fall back to original rom. There is no known way of doing it because the typical commands to backup/restore to SD card have been removed in the Hermes bootloader. So upgrade at your own risk or don't upgrade if you pretend to return the unit
Mad_M said:
Is the Extended ROM must, or can I live without it also ?
Click to expand...
Click to collapse
You can live without it, but generally it fixes some things (you'll not be able to do video calls without it for example). All the cabs are not needed and there are some customizations, skins, etc which are really annoying for me. What I generally do is "reset" before the ExtROM installs on first boot after hard-reset, and then manually install the cabs I want: some taken from TyTN rom, some others taken from i-mate rom and some others taken from Dopod rom.
Hope that helps!

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Upgrading at your own risk ... that may be risky ... LOL
But i did it and its worth,...... still waiting for the new O2 ROM ...

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I've written a wiki page with all this:
http://wiki.xda-developers.com/index.php?pagename=Hermes_UpgradeFAQ

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Can I flash HTC ROM and then add O2 Extended ROM ?
Will I then have all O2 specific stuff, and O2 skins?
Did anybody already tried this combination ?
Thanks in advance...

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Mad_M said:
Can I flash HTC ROM and then add O2 Extended ROM ?
Click to expand...
Click to collapse
Yes
Mad_M said:
Will I then have all O2 specific stuff, and O2 skins?
Click to expand...
Click to collapse
Yes, operator customizations are always in ExtROM.

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thanks pof, i don't know from where is this french rom come from, but i want tell thank for the someone who gives it [sorry for my bad english]

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liva said:
thanks pof, i don't know from where is this french rom come from, but i want tell thank for the someone who gives it [sorry for my bad english]
Click to expand...
Click to collapse
i see it at qtek.ch too

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Mad_M wrote:
How can I then fall back to original ROM (if I would need it for warranty reasons) ?
As O2 or T-Mobile has not released any rom upgrade yet, you cannot fall back to original rom. There is no known way of doing it because the typical commands to backup/restore to SD card have been removed in the Hermes bootloader. So upgrade at your own risk or don't upgrade if you pretend to return the unit
Click to expand...
Click to collapse
Now O2 has released a new Rom, so if I change to i-Mate I can always change to O2-Rom
Is That correct?

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Jorshua said:
Now O2 has released a new Rom, so if I change to i-Mate I can always change to O2-Rom
Click to expand...
Click to collapse
The O2 released ROM is in german, if the original language of your O2 branded Hermes was german, then the above statement is correct and you can flash any rom without worries as you can always revert back to o2 in case you have to return your unit

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Thank you
I have bought my Trion yesterday but it's in german, and I want in english so I found this forum which is great.
Thank you gays for the good work.
Can you provide some other forums or sites with information about Software for PDA and other stuff.
I will spend the entire week reading the forum.
Best Regards ...