[G2 and Desire Z Q&A, Help & Troubleshooting] Tronar:
Answers

Hi,

to answer your questions:

1. one way of getting some information out of your phone is to use the AMT-Tool to query the device info and the security status. You can find the tool in this thread:

http://xdaforums.com/showthread.php?t=1097977&page=1

The latest version 1.8.5 is somewhat wacky though and sometimes claims, that it can not query or manipulate your phone, although you are already rooted and have the right software version installed. So do not rely on this tool for further flashing your phone. But the queries usually work fine and produce results.

If you run into trouble with the 1.8.5 you might want to download and try the older 1.8.1 which seems to be more stable and can be found here:

http://dl.dropbox.com/u/26590769/AMT181.zip

You don't have to install the files, just unzipping them to a new directory is sufficient, so you can unpack and use both versions parallel without any troubles.

Another way to find out the version of your HBOOT is by shutting off your phone and then holding the ON-Button and the TrackPad-Button (that square thing at the bottom of your display) at the same time until the phone boots into the bootloader screen. There is the version of your HBOOT displayed.

2. I am not sure, what exactly you want to flash, but if it is something like a PC10IMG.zip, usually all you have to do is put it into the root-area of your SD-Card (so do NOT put it into any subfolder) and then again boot into the bootloader by the method above. Then select the first option called "Bootloader" (which usually is already pre-selected) and press the ON-Button once to confirm the choice. The phone automatically searches for any PC10IMG-Files on your SD-Card and then asks you, if you want to flash that Image.

Don't forget to delete the file from your SD-Card afterwards, otherwise your phone will try to flash the Image again the next time you boot into the Bootloader!

3. Depends. As far as I have learned, flashing only the Radio should not tamper with your root or unlock. But I am quite new to the Android-World myself and would not want to guarantee the correctness of that statement. All I can tell is, that the 2nd phone I have rooted was the Vodafone Branded and SIM-locked phone of my wife. After de-branding, rooting and unlocking it, I flashed it with the Virtuous Sense 2.0.0 ROM and in a 2nd step also flashed the latest Radio onto it. Both did NOT break the UNLOCK. But since I don't know by which method your phone was rooted and unlocked, all I can do is speculate.

But even if you should break your UNLOCK somehow, it shouldn't be too hard to re-ROOT and re-UNLOCK it by following any of the many HOW-TOs published in this forum.

You can find the Link to all the HTC Desire Z Radios in my signature. There are a lot versions available that are newer than yours. As far as I have read in other threads, you can safely flash and try out several radios on your phone, but again no guarantees on that statement. :)

But keep in mind, that you might also need to align the Radio Library with the Radio depending on your ROM. This thread will tell you more about that process.

Hope that helped...

Tronar