[Sprint HTC EVO 4G LTE] tjmethod:
Hello I don’t know if anyone might be able to help but if theres any senior members that reads this and can shed any light on my problem, I’d be very grateful. First a little info on my phone and root:

In the bootloader it says ***TAMPERED*** ***UNLOCKED*** JEWEL PVT SHIP S-ON RL, HBOOT- 1.12.0000, RADIO-1.02.12.0427, Open-DSP-v25.o1.32.0405, eMMC boot. The rom that was loaded on the phone was an HTC build called Viper Rom. When the HTC 'quietly brilliant' screen comes up, underneath in red text it says "This build is for developement purposes only Do not distribute outside of HTC without HTC's written permission. Failure to comply may lead to legal action." There were no issues with the bluetooth for months. My Bluetooth started disconnecting roughly 3 or 4 weeks ago and I have tried almost everything I can think of to try and fix it. First checking the three Bluetooth headset devices I use on other devices and they show up no problem. The perplexing thing that I recently found is when connectin via USB and opening all the files on the phone, there is no 'root' file that I can find anywhere. What I have tried:

1. Soft resets

2. safe mode restarts

3. factory resets

4. Bluetooth fix/ repair app

5. Change wifi frequency band from 'auto' to '2.4'

Now all of the 5 things above that I have tried worked one time and all stopped working within about 2 hours. Some almost right away the bt was disconnecting- even though it would re-connect, soon that stopped. From that point forward I have done the following:

1. Downloaded and flashed the 'Team Venom's version of Viper Rom 2.0.0.

The rom worked fine. but no BT. Another member on XDA suggested flashing the latest Mean Rom based on the HTC update 2.13.651.1. Did so, no BT. Then I flashed the latest Viper Rom 2.0.2 also based on the update and no BT. My next step was flashing a rooted version of that update that Max (Mikroms) posted on here. I did a factory rest, wipe cashe, wipe Dalvik cashe- six times before doing so. I Thought bricked my phone, it was bootlooping. I held down the power button for two full minutes then let go and then held down the power and vol down buttons and luckily the bootloader came up. I again did a factory reset, cashe and Dalvik wipe and reflashed the Viper Rom 2.0.2 again. which is the best rom I have ever used. This time some of the viper Tweak aren't working of available but everything else works fine except the BT.

I found out a couple of days ago there are a couple other people having a similar problem. I called HTC and they are aware theres a BT problem and are working on a fix which could take weeks. I dont know how I would get this fix since my phone is S-on. Another senior member has told me I can get S-off on the phone since I have 1.12 Hboot. I will be reading up on how to properly do that but was also told that that wouldn't have anything to do with the BT. I see it as being able to get updates, fixes and other stuff I have read about 'S-off'

After reading online, I found something about fixing bluetooth with logcat but didn't quite understand it. I do have an app on my phone now called aLogcat but do not know how to use it. I also went through the Play store and came across an app called 'rSAP- Bluetooth SIM Access Profile'. I then read the reviews and it sounded like the fix. Instead of spendingt the $12.49, I downloaded the trial version. An error came up "System file library not found. Is the an HTC/Samsung phone?" with no means to reply. The first clue about the problem is that the BT system files are not there, empty or blocked somehow. The only other things I can think of are:

Finding a stock rom, downloading/ flashing latest stock RUU.

Finding and copying the bluetooth system files from a friends evo 4G LTE phone that is a couple months newer.

I will be contacting my BT headset manufacturer and see if I can find out what should be on the phone for files since HTC wont or dosen't know what they are. Is there anyone out there in the developement world that may know how to access and copy the BT software on the phone or have any answers or suggestions moving forward???

Thanks in advance for any info,

TJ