Cause of some of the restrictions imposed in the forum , I will try to elaborate without mentioning software names.
You need 2 main software and 1 optional for a total of 3. You will also need the proper 2.9 firmware files.
So it goes like this: First. Use the tool to save the RX/TX alignment settings of the radio. (because when you write back the firmware you loose the alignment settings, and without them the radio is useless), Second: Put the radio into bootloader mode. example: In the XPS mobile family for example, all you need to do is jump pins 16,17 and 23 together (rear connector), apply DC and the radio will go into bootloader mode, remove the jumper connect the programming cable while on. Third, you then write the firmware into the radio using the other tool. Once it reboots, you use the same tool you used to save the alignments, you just load the alignments back. (make sure you do not interrupt the process, once complete, you close down the tool, and it will reset the radio automatically). DONE. You can open using CPS16. The optional tool is the one that forces the radio in bootloader mode, incase the jumpers do not work. The tool is a command prompt utility. You need to connect the radio to the computer, and get the IP address of the radio(network settings). However, you do not use the IP address of the radio, but the GATEWAY address. You run the utility and add the IP address of the gateway at the prompt, and it will put the radio in Bootloader mode. (needed for portable units firmware restorations). Then proceed with the second step mention above till done.