[Sprint HTC EVO 4G LTE] comp_wiz_bit:
Thanks everyone for all your suggestions. I did try some of them and following are the results until now:-

1) Proximity sensor - I did cut out a part of the screen protector, but that made it act even more finicky. During a call, the screen would just turn on and off on it's own. So I completely removed the screen protector. The phone is acting better now. It mostly works as it should, i.e. during a call take the phone near the ear and the screen turns off. Take the phone away from the ear and the screen tuns back on. But the keyword here is - mostly. Even now sometimes it's behaving erratically such that sometimes the screen would not turn on while the phone is away from the ear.

2) 3G speeds - I have tried changing to CDMA only mode. That has not helped. I even tried a hack mentioned on xda website to 0 out the HTTP proxy port and server. That has not changed anything either. The slow 3G speeds are really bugging me.

3) WiFi - I have checked my router settings etc. but that has not helped. My laptop works fine. I have a portable wireless music streaming internet radio. I have only used it on 2.4GHz band. But I just tried by changing it over to the 5GHz band and it works perfectly fine anywhere in the house without ever loosing the connection. Infact, I took it to my neighbours, and it still continued to stream music without issues even though the signal strength there was poor. But my LTE phone, would not work on the 5GHz band even in my own house. The only place it seems to work at is when the phone is next to the router.

I did hard powercycle it a number of times. Now the phone is not loosing the wifi connection on 2.4GHz band as much, but it's still loosing it sometimes. I think it's highly susceptible to noise in that band. Whenever I turn my microwave ON, the LTE phone almost always is losing connection to WiFi - not all the time, but most of the times. At other times there is nothing causing interference in the house, but it would still sometimes loose connection.

4) Ringer loudness - I have not seen any suggestions to help with this and have not been able to find anything on the internet that could help either.

5) Screen colors - I have not seen any suggestions to help with this and have not been able to find anything on the internet that could help either. This really bugs me as some of my fiance's best photos are in a orangish red dress and this phone just kills those. This phone make her look orange like John Beohner!!!

6) Battery drain - Changing to just the CDMA mode seems to have helped with the battery life. I am able to get about 9hrs out of one charge now while using a phone a bit intermittently.

7) Independently change the volume of speaker phone and the near-the-ear speaker - I have not seen any suggestions to help with this and have not been able to find anything on the internet that could help either.

8) Phone not vibrating when the riging starts on the other side - After taking off the screen protector, this is no longer an issue. The phone vibrates every time the ringing actually starts.

9) Locking/Unlocking - No I do not want my phone to behave like honeycomb or anything like that. And no, I am not using the face unlock. It's a circle that you have to pull up to unlock. I just want the original pull down kind of thing that original Evo had. I'll try that widget app today and let you know how that goes.

10) Transferring the app - I still have to try that. After reading all the suggestions about it, I think it shouldn't be tough. I will also contact the author and see why it was removed from the store in the first place. It no longer shows in the list of downloaded apps even on my original EVO any more even though it's installed and working fine on it.

11) Phone heating up - I have not seen any suggestions to help with this and have not been able to find anything on the internet that could help either.

I normally do not buy phones on the first day that they come out. I know that buying a phone on the 1st day of the release is almost like signing up to be a beta-tester. I dropped my original EVO 2 weeks ago and cracked the screen pretty bad. So I had no option, but to upgrade using my fiance's upgrade.

Could I have a lemon here? That is possible. Although I think that with everyone's help here I was able to fix atleast some of the problems. The problems that still persist are something that (mostly) everyone else is facing as well - more-or-less. So I doubt that it's just my phone. Still, I'll try and take it in to BB tomorrow and see if I can xchange and if that resolves my WiFi/3G/Proximity sensor problems.

Once again, thanks everyone for your suggestions. Please let me know if you find anything for the other issues that are still present.

As for those who say I am complaining a lot, well it's an expensive phone and when it does not even work as good as my old one, I do feel mad. My major issues are/were with the Proximity sensor, WiFi, 3G and battery life. If those don't work properly, it really hinders me in my daily life. I bought a smartphone for a reason.

Putting my concerns on various sites provides maximum exposure. Hopefully someone would be able to come up with a suggestion that can help me with the problems on this phone. That may happen on this site or some other site. All I am trying to do it find solutions for the problems for my phone. Is it really wrong to try and ask multiple people for help?