[P3600 Software Upgrading] flamingcrumb:
I appreciate the helpful posts on using GPS and the various software options. Good to know. Nothing I can add, you good people all know way more than I do, I don't see reduced battery life with GPS as a "fault" in any way - just a law of physics. For example, if I had my phone on for web browsing all the time at full brightness and used bluetooth plus wireless non-stop, the battery is going to run down faster. That's fair enough. I did notice there seemed to be a little bit of more drain with the GPS ROMs even with GPS inactive. I wonder if it ticks away in the background ready for use? It does certainly seem that enabling additional features might be reducing standard GSM sgnal strength. My feeling is that a little bit of internal radio interference might be a reasonable thing to expect. The Trinity has goodness how many radios? 4 bands of GSM, 3 Bands of w/CDMA, BlueTooth, WiFi, GPS... all in a device the size of deck of cards. Again, the laws of physics may simply apply.

The bottom line I get from this is there is unlikely to be a benefit in upgrading to a ROM which provides features I am not accessing. That doesn't mean the new ROMs are anything less than great, just not of benefit with my carrier in my location at this moment.

kewlphone, I definitely think you should be getting Edge speeds everywhere in the Los Angeles and Orange County areas, without even doing any tweaks. Bear in mind the standard HTC P3600 ROM always seems to just show the G, the key test is the speed not the symbol. But the speed you describe is not Edge. It will vary by time of day and location etc, so it is worth repeating the test quite a few times. You defintely should be seeing at least 100k when you have a full signal strength in urban areas, especially at off-peak hours... at least some of the time! I think you should call Customer Support and ask for a data specialist and talk it over with them. Perhaps they can reset your data account or help in some way. The positive spin I always go for to keep them on my side even though I have an unsupported phone is by explaining I am a loyal customer but the phones they offer don't meet my needs at present. So I am using my own phone because otherwise I would have to switch to another carrier and I don't want to "because you guys are so great" etc etc. In a few months there will be more T-Mobile phones available and I will be getting one. In the meantime I need to make things work so I can stay with T-Mobile. This is a semi-truth and but greatly overstates my loyalty, which is really only limited to the killer deal I get on a huge bucket of minutes (and is being serverely tested by their lagging in the 3G...) but it is a positive spin to give them a good reason to help me even though my phone is unsupported.

BTW I describe the Trinity as being most like the MDA but a generation or two on. If you get a decent data technician the chances are good they will know what you are talking about and will also be well away of T-Mo's limitations themselves. Chances are good they will do their best to help.

A place that might be helpful and more appropriate for discussing US carrier issues is howardforums dot com. They also have a Wiki which is quite useful. Obviously the XDA-Dev forum is for the tech stuff and tweaking to the the max! I think I have the same user name on howardforums so maybe we can find a good thread for trouble shooting our carrier stuff over there. Don't think I have actually posted yet but I will do as I ultimately need to decide whether to stick with T-Mo or jump to Cingy/ATT. If you register with the same name it will be easy for me spot you on their board. All the best. Please let me know about your progress :D