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Help Any GENERAL Bluetooth Problems (pairing issues, distortion, etc)

i can understand why a factory reset is required.

reason is no one knows what apps, software you have had on the device and there is no way for one to know what all of the apps and settings you have on your phone can interact with other software. some program can alter setting on a device without the user being wise to it. not saying this happened here but it has happened and it is possible.

also updating firmware or OTA updates can tangle up things under the hood and CAN cause issues with apps. in this case many people do a factory reset after a firmware update to clean out any caches that may get dirty or tangled during this OTA update process.

all that said, its going to be difficult to try and help over the internet without seeing the device in person.

things you can do is un pair/re-pair the device, go to a sprint store with a working evo lte 4g (or a friends) and pair your device there to test.

go to a different sprint repair store and get a second opinion.

send your phone into htc.

if your device worked prior to any ota updates then its likely a factory reset will fix your issue, and maybe any other issues you may (or may not) have noticed...
 
Update to my post #75. A local Sprint store paired my EVO 4G LTE with a JBL Bluetooth speaker in the store and it worked OK with my phone - the sound tracks that were problematic when connected to my hearing aids via ComPilot were OK. Went back to the audiologist who again contacted Phonak, the mfgr, who suggested resetting THE HEARING AIDS to factory settings. (The settings had been saved in the audiologist's computer.) This was done and the hearings aids were then reprogrammed to the settings for me. SO FAR, all is well!!

Beware when told to TRY factory reset of the phone - try to isolate the problem first. This was done by pairing an external bluetooth speaker with my phone and it worked normally.
 
Glad that's sorted. :)

You had a specialized issue, fair enough.

A factory data reset clears cache and Dalvik cache, not just cache. Both of those areas typically need cleaning on any major update - hope this clarifies. :)
 
I have a Motorola Wireless keyboard KZ500. I can pair it with my HTC EVO LTE 4G phone. However when I try to use the keyboard nothing happends on the phone. The keyboard is HID compatible (HID is also listed as a protocal on the phone spects) The keyboard is optimized for use with Android devices.

When I pair it the phone searches and finds the keyboard. I tap on the keyboard listed in the phone's bluetooth device list and get a message to enter a code (type on the keyborad). After entering the code the phone indicates that it is now connected to the keyboard. My bluetooth symbol indicates an active connection. If you try to use the message function on the phone and enter text using the keyboard nothing happends. Also email text entering doesn't work.

I tried powercycling the phone and re-pairing with the same results. I have also tried another HTC EVO 4G LTE phone with the same results. I tried pairing the keyboard to an iPhone and it works.

Is there anything specific to the HTC phone that I need to to do get the keyboard to work?
 
The blue tooth hid feature needs no other interaction with it to get it to work with those types of devices.

If you tried this keyboard on the same model phone in the same stock configuration and it didn't work there, it's probably not compatible with this device. Not all keyboards will work.

I used a logitech BT keyboard when I used this model phone and had no issues. Had some hiccups in a 3rd party browser, but it worked well in Chrome and in tasks on the phone.

Does the Microsoft website list this keyboard as compatible with the LTE 4G?

Can you try another BT keyboard?
 
Sprint advertises that the phone supports the following Bluetooth profiles:
A2DP, AVRCP, GAVDP, HFP 1.5, HSP, HID, GOEP, SDAP/SDP, SPP, PAN, Stereo Streaming, AVDTP, OBEX

Here is what is actually on the phone:
A2DP, AVRCP, FTP, HFP, HSP, OPP, and PBAP.

Here is a link to where I found this info:
Complete list of HTC EVO Bluetooth profiles found in hidden setting - Pocketables

So the Motorola keyboard (HID bluetooth profile) will not work on the HTC Evo 4G LTE becuase it does not support the HID bluetooth profile. So I have a keyboard for sale...:(
 
Bluetooth specs are schizophrenic and non-linear.

Each maker keeps managing to miss (different) parts of the Bluetooth stack, and sometimes losing features from a previous year while adding new ones (this happened with the LTEvo with respect to range for example).

All devices and peripherals marked XYZ (in this case, HID) ought to just work, but pathologically not all do.

The LTEvo works with some keyboards but not that one.

That keyboard works with other devices but not the LTEvo.

It's probably a fair guess that it's the phone's fault, but I don't have a way of knowing that (maybe someone with more Bluetooth knowledge does).

We know that the two are somehow incompatible.
 
I don't want to make a mistake again when I purchase another keyboard. If the keyboard spect state "Works with Android 3.0 or later" does that mean that it will work with my HTC Evo 4G LTE?

Here are a couple of keyboards from Logitech
Logitech Bluetooth
 
Anyone have an idea about why my new (to me) 2011 Infiniti M37 would be only picking up some of my entries of my phone book? I only have contacts synced to gmail with an occasional facebook entry that is usually still linked to the gmail contact.
 
Hello,

How does my phone decide which app will respond to the "play" command that is sent over bluetooth?

I connect my phone to my car via bluetooth. On my car's dash panel, there is a "play/pause" button.

So I get in my car, the phone and car connect to each other over bluetooth. Then, I tell the car to play bluetooth audio media streaming.

What usually happens is my favorite Podcast application (BeyondPod) will start playing my podcast. However, every now and then, the phone's native music app might start playing instead, and I have to pick up my phone, and launch Beyondpod to play my podcast, at which point the music stops and beyond pod takes over.

So is there a way to control the behavior, so that my podcast always responds to the car's "play" command, without launching some other random audio player in response to the bluetooth play command?
 
the podcast app needs to be set as the app associated when you connect via bluetooth.

a 3rd party app is fighting for control over a stock, baked in app. guess who will usually win that round? ;)

lets see if we can localize this... does this happen over a BT headset AS WELL AS BT in the car? OR does it occur in the car only?

smoke over this brief post to see if this would help...

http://androidforums.com/htc-evo-4g...-when-connecting-via-bluetooth-car-radio.html
 
Thanks. You mention needing to set the podcast app as the app associated when you connect via bluetooth.

What does that mean - I went into App associations, but there is no association for connecting via bluetooth? I am interested in how to associate an app with a bluetooth connection?

I went to the App info settings, and see there is a section for each app titled "Launch by default". However, I cannot see how to enter a value there, or get the phone to insert something there. The entry is blank for every audio program that I looked at, including the music player and podcast app.

As for the car vs headset, I don't have a bluetooth headset and can't do that test.

The link you provided about auto starting was helpful to understand how to stop the phone from auto-playing altogether, in response to bluetooth. However, I'm curious about whether there is some way to specify a particular program to respond to the bluetooth play command. So I'm happy that a program auto-plays and I want that feature.

It's just I'm thinking that the Android OS currently does not contain the ability to associate one particular app over another, when it comes to responding to a bluetooth play command?

Note that my phone behaves nicely and does nothing when bluetooth autoconnects, as intended, and correctly begins playing audio in response to the bluetooth play command. It's just that about every 20th time it receives the bluetooth play command, it launches a music app instead of the podcast app.

Also, I can usually prevent this if I launch the podcast app beforehand, so that the podcast app has focus and is ready to play. Under those circumstances, the music app does not launch.

So I think maybe it would be best in my situation to use a tasker program like Llama to launch my podcast app in response to connecting to bluetooth, but I feel like that's a hack solution and would like to learn more about how Android makes its decision when deciding which app to launch on its own in response to the bluetooth play command?
 
i have the htc one. used to have the lte.

i have my phone connect to bluetooth in the car. instead of the stock music player, i have a 3rd party player that. if i set it in its settings, will auto start and begin playing instead of the stock app. this 3rd party app is currently set as the default player in the car.

there are app associations you can setup on the lte but yeah there are no specific "use this app to connect over bluetooth".. just which app to open when a link requests it.

if you can find a bluetooth headset to test to make sure it happens across any bt connection, this would help in the process. just go to a sprint store and ask to test a bt headset.. ;)
 
Ah yes, maybe I could fault my podcast player here, since it's not burly enough to kick out the default/stock app like your 3rd party player.

As more info, I noticed yesterday something unexpected. While listening to my podcast player in the car over bluetooth, I decided to make a call. So I just used my car's steering wheel control to initiate the phone call. My phone obediently stopped the podcast app while I spoke on the phone, so I didn't have to manually stop the podcast app, so that's pretty cool.

But what's weird is that after I hung up the phone call using my car's steering wheel hangup button, I expected the phone to resume playing over bluetooth the podcast that I had interrupted when making the call. But surprisingly, the phone decided to resume bluetooth audio playback using the stock music app playing MP3 music.

Hah that's just wacky. Silly phone, can't you remember that you just paused my podcast app before the call, and need to resume the podcast playback?
 
So my original issues were phone related and I swapped it out.

Now my biggest bluetooth issue is range. Anyone else get TERRIBLE range on this thing?

For my headphones, I can only get about 3' away until it starts to break up. It is so bad that sometimes it starts breaking up when the phone is in my front pocket and the headphones are on. I thought it was just poor audio streaming until putting the phone in my shirt pocket solved the issue.

With my bluetooth speaker I can get maybe 10' away tops before it starts dropping audio and skipping which makes it worthless for walking around the house while streaming music.

My old EVO started breaking up on the 2nd floor of my house with the phone in the basement. In my new place with my new phone I can't leave the same room or go more than 10' away...
 
On a completely different phone, I too had a similar bluetooth range issue with a refurb replacement phone. I opened it up and took a look at the bluetooth antenna and saw it was partially damaged.

So, can you examine your antennas on the inside of your removable backplate? Three things to consider, 1) the quality of the material on the backplate itself, 2) the quality of spring-loaded contacts on the phone itself, and 3) the quality of the connection between the spring-loaded contact and the antenna coating on the removable backplate.

Maybe your contacts are touching, but there is a dirty/worn area of the antenna coating on the backplate so the contacts don't touch much of the antenna material? Maybe you can clean it, or even apply conductive paint to the area to improve contact? Or even try inserting some aluminum foil where the contact is located, if the antenna portion is worn away there so that the foil reaches the metallic antenna?

Anyway, worst case is maybe your metal contacts have broken off and the antenna is not even being used, just the little snub of metal in the phone. Remove the back panel and let us know how it looks back there.
 
I have a very old plantronics bluetooth. I just upgraded to the EVO 4G LTE from the EVO Shift. Nobody ever complained when I was talking on my EVO Shift via my bluetooth, but now everyone complains that they can't hear anything I say and it sounds like I'm in the middle of a windstorm if I am in the car...even with all of the windows rolled up. Can anyone help me as to why this is happening with the EVO LTE but didn't happen with my shift?
 
Try holding the phone very close to your headset. If the call quality improves, you may have a poor bluetooth reception issue with the newer phone. To fix it, you can try removing the rear panel (like a battery panel, surrounding the camera lens), and checking for any debris blocking the metal contacts from making good contact with the rear panel. Maybe clean everything, and re-seat the panel.

Sometimes over time the panel gets jostled and then the contacts between metal/panel aren't as good as they can be, so your reception suffers until you re-seat the panel.
 
Just got a new evo lte back from asurion and it will not find my new alpine head unit however I also have a S4 galaxy that has no prob connecting I even wiped the Head unit and still nothing. thanks in advance for any help .
 
well first question is, since this is a replacement/refurb, did you have an LTE evo PRIOR to this one? OR is this a completely different phone that is replacing a completely different phone? :)

if you had an evo lte before and it paired nicely, then there is an issue with this refurb. hard reset, make sure it has the latest update for this phone are steps to take.

however, if this is the first time you are using this phone with your car's hu, then head over to alpine and make sure the phone is specifically listed as being compatible. not every phone will be, and this LTE evo has been discontinued for some time so alpine may not support the BT stack currently in the evo lte.

you are welcome to post up the model number so others can chime in, as someone may have he same model.

you say it will not "find" your HU, well more details please? does it even show up in the pairing list on the phones BT menu? is bluetooth turned on? have you factory reset the evo?

and are you rooted? :)




Baltimoretint said:
Just got a new evo lte back from asurion and it will not find my new alpine head unit however I also have a S4 galaxy that has no prob connecting I even wiped the Head unit and still nothing. thanks in advance for any help .
Click to expand...
 
No root fresh from Asurion, and no it doesn't show in the pairing list at all it just says no nearby devices , yes factory reset the Evo and the HU as well this is a new Hu model #CDE-SXM145BT, I gave my S4 to my son and took back my old evo in the mean time, he had a cracked screen so I put in a claim for a new phone and that is why I have a refurb. I Much prefer HTC phones over Samsung so im holding out for the new htc And thank you for the quick response !
 
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