Confused about ROM install

[Stinkfist]

Just after I got my 8125 I upgraded the ROM to 2.25. I didn't unlock anything. Its running fine. Now I'm interested to try a different ROM. I understand I will need to CID unlock my device. Here is where I'm confused, if it is possible or not after upgrading to 2.25? Can I follow the steps to downgrade my ROM and unlock the CID?

I have searched and been reading alot but I'm still a bit confused, so please be gentle as I ask for some guidance. I have experience modifying Motorola phones, but am new to PocketPC. Any help is appreciated.

[hanmin]

Good if you can provide info on how you upgraded your unit (e.g. with the providers official ROM or with the software and ROMS in this forum, etc)

And how you intended to down grade your ROM? You also mentioned the 'steps' to follow, of which steps are you refering to?

And, why do you want to have your phone CID unlocked? CID lock will not bug most people unless they are going for a ROM flashing. CID lock is different from `phone lock` or `SIM lock`.

Just incase you are wonder, what is CID, ... don't ask me. I have no idea at all :D Seriously.

[Stinkfist]

I upgraded a stock 8125 (G3) to the Cingular 2.25 official ROM. I would like to install a summiter or mr. clean custom ROM. Searching through the messages here I'm unable to determine for certain if I'm able to CID unlock from 2.25 on my own (for free), but I get the impression I cannot. I just want to know for sure before attempting anything further.

I won't need step-by-step instruction...just need to know what my options are at this point.

Last nite I tried to install the summiter ROM without the bootloader. And the install went fine and completed 100% without error. But after the reboot I found the flash didn't hold, it was basically like a hard reset.

[kyphur]

First download and install the Cingular 1.8 Rom

If that works fine then you should be able to CID unlock.

If not then try downloading and installing the "Button 1.05" Rom.

If either of these dowgrades worked for you, searck for LokiWiz (use ver 0.2 for CID unlock) and follwo the instructions.

Next if you want to SIM Unlock find LokWiz MSL 0.3 as it does a better SIM unlock than the older LokiWiz. Again follow the instructions.

Now you should be good..

[Stinkfist]

Sorry if I wasn't clear, but its the downgrading I am concerned about. I'm not certain if it is possible to downgrade (including bootloader) from 2.25 without the device being CID unlocked..?

[kyphur]

Sorry if I wasn't clear, but its the downgrading I am concerned about. I'm not certain if it is possible to downgrade (including bootloader) from 2.25 without the device being CID unlocked..?

Having a G3 device you can downgrade.

You must downgrade to CID unlock unless you want to pay imei-check $40.00

[Stinkfist]

Having a G3 device you can downgrade.

Perfect...I will try it.

You must downgrade to CID unlock unless you want to pay imei-check $40.00

Yeah, that much I do understand. I definately want to avoid paying to unlock.

Thanks for your help! I'll let you know how it goes.

[Stinkfist]

Success! SIM/CID unlocked.

IPL 2.24
SPL 2.24
GSM 02.25.11
OS 2.24.10.1

Thanks kyphur, for taking a moment to point a noob down the right path.