yashsingh1/xdaforums huggingface dataset:
[HD2 General] kudepi:
Do you mean you called the htc assistance for this problem and they sent a new phone in 1.5 weeks? If so, I 'll do the same as I really hate my phone now.
[HD2 General] dennis-:
same problem here. mine first started doing it out of nowhere a week ago. i tried all of the tricks people tried on here and nothing worked. then a couple of days ago it stoped doing it on its own or so i thought. now its not just stuck in car mode but it randomly comes out of standby on its own. it wont connect to the pc wen plugged in either. well i wiggled the plug for a while and it tried connecting to the pc but as soon as i unpluged it that was the end of it.

i wonder if one of the developers on this site can make a tweak that completley disables the car kit mode or maybe a toggle to turn it off or on like wifi. i dont see why htc didnt think of a option like this in the first place.
[HD2 General] hazza666:
i too recently suffered with this problem. i tried a hard reset but the problem still persisted which spells to me a hardware issue. after a long conversation with a rep on the o2 helpline they eventually agreed to take my phone in for repair.

10 days later i recieved the phone back from o2 with a letter saying they had replaced a circuit board. maybe they could of offered up a little more detail im sure the HD2 has quite a few "circuit boards" in. anyway all was working fine for about two days then a completly different issue occured. this time it was a call function causing audio loss when first making a phone call. Another phone call to o2 later and i had a new phone being delivered by courier the next day (i say new it was a refurb).
[HD2 General] se1988:
Problem is back

Well guys, I thought I had really fixed it this time, but i was wrong. So, the phone is going in for a repair...

And YES, ITS THE ONLY SOLUTION.

If you googled this, know that there is nothing you can do.

The phone needs to be repaired, as it is a hardware issue.
[HD2 General] blazingamr:
Hello all ,

Any updates ?

i have the same problem here in Egypt ,

i hard reset the device & problem is still there .

although i am happy to find out that i am not the only one facing the same problem , but i see that a final solution is not yet offered here.

should i change the hole ROM or something ?
[HD2 General] se1988:
Water damage??!?!

Today i got the results from the repairshop, and guess what?

"Your phone has been exposed to liquid, repair not possible. This will not be covered by warranty"

Yeah right. I would never expose my phone to any liquid. I havent even had it in my bathroom when i take a shower.

I sent them a reply by email, and I can just hope that this wont be a lost cause...
[HD2 General] Baker0:
Ive got this problem as well now. Whats stopping this from happening again if i get a new board? ? Are any of you using the rubber case to protect the phone? ive noticed the USB cable might move about a bit more when its on...

Cheers

Baker0
[HD2 General] Baker0:
i think ive found out whats happened. I bought a USB cable and last night it was in my laptop and it got slighty bent at the usb connector. I charge it with this last night and it looks like its killed it:(
[HD2 General] blazingamr:
Ok , let's have an agreement on something ,

it's one of the most impossible things to have all these ppl having the same problem in various areas around the world & think that they all made the same mistake .

if the phone has a hardware default then HTC must simply have the responsibility to fix this thing up , it's unbelievable that all of us have crashed your phones against the all as the HTC replies suppose.

I contacted the tech support & the same stupid reply was to : Hard reset your device after backing-up n bla bla .

I love this phone & i think it's one of the greatest .

but now we gotta know how to make HTC fix the damn fault , right ?
[HD2 General] se1988:
Yeah, thats what I got. I told them that i had already done all of this, so they sent it to a repair workshop... thats when i got the message that my phone was WATER DAMAGED..! man, im angry right now:mad:
[HD2 General] Baker0:
I had a funny women answer the phone at t-mobile, i explained to her the fault. I told her the normal stuff what ive done to try and fix e.g. upgraded and hardware reset... I told her the USB port was faulty.. After about 10 minutes of explaining she said hang on.... 3g in your area is down. I thought is this a joke. she carried on saying this must be the problem and i was laughing. she then said ok because of this ill give your £5 off your next bill.. I said ta very much and closed the call.

I then phoned HTC and got it picked up today.
[HD2 General] blazingamr:
Solution : Hardware problem

Dear all ,

I got lucky today & my brother managed to solve the problem for me before i send it to the HTC Store, by moving the the pins slightly up n down , left & right .

i do not recommend anyone to do the same coz my brother is an Engineer.

anyway , the point is the the damn thing is indeed an unsoluable hardware fault that can be fixed ONLY by the store or by an expert :mad:
[HD2 General] s32bauer:
Having the same problem.

When connecting to a PC it will connect, then disconnect, repeatedly. It's gone in to car kit mode on several occasions, and my display will not turn off.

If I leave the handset, it dims after 30 seconds, then returns to full brightness a few seconds later. If I press the power button to turn the screen off, it goes off, and then turns itself back on a second later.

I also have tried hard resets, new Rom's, etc. So, I'm guessing it must be a hardware issue. I'd ideally like a quick fix, but I'm guessing it's another situation where I have to send the phone off for repair again.
[HD2 General] se1988:
To everybody searching for a solution to this problem:

This is a HardWare issue. The only way to get rid of this is by sending your phone to repair.

No one have found any other solution.
[HD2 General] kudepi:
I agree, after reading many posts here and there it is clear that the problem is hardware. I was ready to send the phone to service, which is very much annoying as I use it intensively for work. So, I made some time ago a last attempt which I also found in the forum: I put a few drops of a chemical anti oxidant (I used CRC Marine because that's what I had in my place). After one day the phone recovered from carkit mode. This happened a month ago and so far everything is working well. I hope it will last, although I am not sure...

As for the possible cause, a few drops of water may be the issue. It happened to me accidentally time ago, but they were only a few drops (after washing hands) and I was not worried. I don't know if that is the cause, though.
[HD2 General] se1988:
Maybe the author should change the thread title to solved..?
[HD2 General] Geironimo:
I had this problem as well and read all the stuff in this thread then tried it. Some of it worked so i figured it was the USB connector problem. The last 3 days i have been wiggling the connector to make it not go into car kit mode, but without much luck. It wouldnt even connect to the PC and active sync.

Decided to send it in for repairs but wanted to try something first.

I basically "blew the ****" out of it with an air duster. Now it works like a charm again, but i don't know for how long :)

Worth a try..and it's fun to empty air dusters:rolleyes:
[HD2 General] F3ZZ3H:
This is probably going to sound a bit crazy to many of you but i had this problem for the last three months off and on. I was able to get rid of it a few times by wiggling the chargers or hard resets and new flashes. It would work for a few weeks but then the problem came back. I was thinking there must be some kind of short in the USB connection so dust or dirt or something o i though **** it my phones insured lets try cleaning it out. couldnt find any WD40 or other sprays to do it with so i just spat in the the charger port then blew this into the port. Right after this the volume f'd up and would constantly be trying to turn up even though no buttons were depressed. I turned it off over night letting it charge and then in the moring i turned it back on car-kit mode gone, volume button issue gone and it has been two months and no returning problem. Strange but true, have no idea how it has fixed it, but it has.
[HD2 General] se1988:
YOU SPAT INTO YOUR PHONE?!?:eek::eek::eek: (sorry for caps)
[HD2 General] samsamuel:
didn't you know? wd40 is just spit-in-a-can!
[HD2 General] d0ug:
I just had this problem crop up in my phone last week =/ It started last week with the phone entering carkit mode every time i soft reset it. I kept soft resetting and finally got it to go into normal mode.

Then over the weekend i noticed the battery draining about twice as fast as usual, after leaving the phone sit out i noticed that it was not going into sleep mode, so i started making sure I put the phone into sleep mode with the key.

Then yesterday I started noticing the phone issue of defaulting into speakerphone mode when a call was started. and the USB disk mode issue

I figured something with the Software/Registry went screwy and was going to do a hard reset and reload everything, till i came across this thread. I took a toothbrush, squeezed as many bristles together as i could and jammed them into the USB port and vigorously scrubbed out the port, then used a can of compressed air to blow out any loose debris. This seems to have fixed the problem *crosses fingers*
[HD2 General] se1988:
isnt there a chance that your port will be corroded??
[HD2 General] s32bauer:
Well, I still have this problem, so I think I may try what you have suggested! A can of compressed air and a toothbrush - it's got to cost less than driving to the nearest repair centre!

Is the phone still working okay, or has the problem come back?
[HD2 General] shahbor2504:
had exactly the same problem but thanx to "motka" its solved so far, dnt knw how but here what i have done, connected the usb and set it to 'USB' then pushed the wire inwords, up and down and now its all working fine, gud luck!
[HD2 General] d0ug:
Well Ive got to report the fix did not last long =( still having issues. I've already called T-Mobile and they are shipping me out another under warranty.

Well hopefully takes care of a few other very minor issues i had too with the camera. pinkish middle, i think just about all the HD2s have that, and a very faint blue stripe in pictures with the right lighting conditions, mainly taking pictures of overcast clouds or anything gray http://www.twitpic.com/2hhzcz/full look at the left edge of the cloud next to the streetlight.

Since im thinking this issue is regarding the USB port, I am thinking I will use the USB port as infrequently as possible on the replacement. I have already picked up a standalone battery charger and 2 more batteries on ebay. Im thinking I will charge batteries in it and swap them in the morning. Added benefit of the HD2 getting a daily reboot I guess. I've also picked up some more HTC OEM USB cables for when I must use USB. Ive noticed the HTC ones go in easily with a nice solid click when the tabs engage in the port. Some blackberry and 3rd party cables ive used seem really tight nor can you feel them engage in the port either. I am wondering if those cables could have damaged it
[HD2 General] se1988:
I think that the HTC OEM cable was a tight fit, i was worried that it would break my port... i wish there were microusb cables without the hooks to use with hd2, so that i wouldnt be afraid to 'gut' it every time i pull the plug... I have also never use a third-party usb cable on my hd2, yet i have the same problem as you...
[HD2 General] se1988:
Today i called the shop where i got my hd2, and guess what? They agree with me, the repair shop might be using 'water damage' as a excuse to not look into this any further... One of them is going to speak my case to the repair shop, i only hope this ends well..

cant wait to get a phone without the car kit issue.
[HD2 General] d0ug:
I am not sure how warranties are handled in your country/carrier. I am on T-Mobile in the US. I just called TMO yesterday told the CS rep about the problem with the USB connection, the not powering off, car kit mode being enabled, and speakerphone coming on by default in calls.

The CS agent agreed the USB problem sounded like a hardware problem and TMO is sending me a replacement for just the cost of shipping which is $9. I did not have insurance on this phone. TMO is honoring the 1yr warranty. She then asked if I wanted to talk to tech support about the other issues which seemed software related to her. I told her i didnt really see a point since you're sending a new phone out to me lol =)

Anyways if HTC is giving you a runaround, try going though your carrier and see if they will swap it under warranty.

Im really happy that TMO is handling this, I bought the phone outright and have been out of contract for years
[HD2 General] se1988:
Ahhh lucky you..! Here we send our phones to a authorized repair shop, then they determine wether it is a warranty issue or not :/
[HD2 General] se1988:
UPDATE:

So, i got a picture from the repairshop claiming this is caused by liquids, tell me what you think! This is what is causing the car kit mode!
[HD2 General] d0ug:
Are they not gold plated contacts in there? How does gold plating corrode? If they aren't gold plated then that's a manufacturing defect in my mind, who wouldn't use gold plated contacts on an exterior connector that is possibly subject to humidity or even moisture that may get to the port but not inside the device?
[HD2 General] d0ug:
Looks like im going to be looking for some kind of rubber cover plug to make sure moisture stays out of the USB port of my replacement HD2 which should be at the house when i get home today.

The standalone battery charger and extra batteries i bought also arrived yesterday, charger seems to be able to charge a battery in about 3hrs and I now have 3 batteries to swap in my HD2

I've never been crazy about the new micro usb port, its really not that much smaller than the mini usb port, and that little plastic tongue in it looks fragile as hell
[HD2 General] se1988:
Ive been searching for something like that too, but havent found ANYTHING... (google, ebay, amazon etc.)

PLEASE do tell if you find any!
[HD2 General] fallenmonk:
Happened a few times with me when I was about to make a call. Thankfully it has not happened since I removed resco manager though I'm sure they are not related.
[HD2 General] d0ug:
have to say i turned up empty handed as well. ill keep looking though. all i found were some phones that had rubber flaps covering their ports

one has to wonder why does this port have anything to do with car kit mode? i thought the car kit was a replacement back cover that interfaced with the 3 gold pads under the standard cover for providing power?

why does any kind of contamination of the usb port seem to be doing this?

one would think that the 2 power connections would be diode protected, so any short there shouldn't cause any problem other than charging, and shorting the data pair shouldn't cause trouble other than ceasing communications though the port. why or how is it causing the phone to go into car kit mod?
[HD2 General] nrfitchett4:
the otterbox defender has this built in. But the case is very expensive just to have a weather resistant usb cover.
[HD2 General] se1988:
I would reccomend taking a full backup of your system, and exchange your phone for a new one through warranty.. This is a hardware issue, and it WILL return...

Yeah, well, i think its worth it if it means i dont have to go trough all this warranty crap again

I found this, maybe you can find an answer here:

(my thought is that if you somehow disconnect pin2 from the phone it will get rid of the car kit problem)
[HD2 General] d0ug:
Well that diagram entirely explains it, HTC using the USB port in a non standard way, basically crap is shorting out those 2 pins and making it think the car kit is plugged in.

Instead of using a passive resistor they should have spent a few $ more and put a micro controller in the car kit that would interface with the data lines in a proper fashion and tell it the car kit was plugged in.

I guess a simple solution to this would be for HTC to release a patch that would add an option somewhere in settings to disable auto detection of the car kit. yeah right like that will ever happen, they cant even fix peep

maybe there is a process, service or driver that can be killed? in the end you might as well swap your phone out, the corrosion will endup spreading and eventually kill data transmission or charging. im guessing this usb port is not gold plated, there is no way it should be corroding if it is!
[HD2 General] se1988:
well, the shop refuses to give me another phone, so i have a unit called "forbrukkerrådet" or "End-user-council" (something like that), its a public service that ensures that end user rights are withheld.

man, i miss my phone, my tytn II just doesnt do the trick anymore...
[HD2 General] s32bauer:
I was having exactly the same problem, even to the point where the phone screen would not sleep, etc.

I took it to the Milton Keynes repair centre, waited two hours and they replaced the entire motherboard. Got a feeling it might have been a third party car charger that caused it. I won't be using that again!
[HD2 General] se1988:
hm... the repair centre here said that "the phone cannot be repaired"...
[HD2 General] d0ug:
Well when you put a new motherboard in the phone, you've pretty much replaced the entire phone lol. just reusing the casing and the screen pretty much

Mine would do the exact same thing with not going into sleep mode. it would just sit there screen on, every now and then you would see the screen brighten up for a few seconds then dim down again.
[HD2 General] se1988:
That was my symptoms as well...
[HD2 General] d0ug:
well until i can find a suitable rubber dust plug or something ive covered the usb port on my replacement hd2 with tape to keep contaminates and moisture out.

the standalone wall charger i found on ebay is working great. it charges a dead battery in about 3 hrs and my wallet has a pocket in it that a spare battery fits into, so i can always keep one on me. i have 3 batteries now, the original and 2 that came with the charger

added benefit of my hd2 getting daily forced reboot when i change the battery
[HD2 General] se1988:
I've decided to get the otterbox defender when (if) i get my HD2 back, definitely! Thats some solid stuff right there!
[HD2 General] colin9876:
same car kit mode problem

Same problem, landscape, home button wont work, cant sync ....

Spoke to HTC support twice 'Theyve never heard of a case like this' lol, I told them to google it.#

They said try a ROM update, I cant even sync so cant try that and see from here it wont work anyway.

Im not buying another HTC phone again.

They say there will be a £20 courier charge to get my phone back if its sent for repair and they decide its not a warrantied fault.

Have other people found that Miltonkeynes have fixed this fault under warranty? My hd2 mobile is 6 months old
[HD2 General] se1988:
can you see any corrosion on the pin number 2 in the usb port on your device?
[HD2 General] se1988:
Seems like this guy got it on warranty...
[HD2 General] tarkboffin:
Had mine fixed, no issues with HTC

had the same problem and sent the phone in. it took them a while (2-3 weeks), but HTC UK picked the phone up, repaired it, sent it back, no questions asked. apart from having to use my old SE 890i i had no problems (man, that thing has a battery life!)

so not all bad in the land of HTC :-)
[HD2 General] stirkac:
if anyone encounters this you may try to move male USB part while it is connected. mine started working that way! yay :D
[HD2 General] se1988:
what do you mean?
[HD2 General] stirkac:
plug it in USB cable, hold the phone and connector firmly, then move connector(there is some space). bend in all directions but not too hard.

mine started working that way, but problem is that now it got worse and phone randomly turns on/off so i'm forced to use android until i have time to send it to repair
[HD2 General] se1988:
well, thats one of the symptoms of corroded usb-pins... wiggling usb cable and stuff doesn't seem to solve anything..!

Repairing is necessary for this problem, there is no other way:(
[HD2 General] stirkac:
yeah but how could possibly my phone corrode we have submediterian clime here and i don't even think to expose it to water of any kind.

it seems to me that something inside can get loose and then loose/get false contact, but i'm not really shure.

will be flashing official rom this weekend and send for repair.

i only hope they won't complain about "pierced" VOID sticker on screw under battery my friend accidently pushed it with pen thinking it was reset button :S
[HD2 General] Escoveosdentes:
Android??

I have the same problem. My phone was stuck in car kit mode and after several ROM flashes my list of issues is (i) massive battery drain; (ii) screen never shuts off; (iii) volume up button does not work; (iv) impossibility to enter bootloader mode or do hard reset via hardware keys.

After a cleaning session and spraying of an anti-corrosive liquid, everything goes back to normal... for about some hours, and then the nightmare comes back again.

Can anyone confirm if using Android clears all this issues? Case positive, I'll do that now...

PS: HTC, I was praising you and advising you over iPhone. Now, after a month of forum scavenging and anti-corrosive liquids, not so much.
[HD2 General] se1988:
Same here, never been exposed to any liquid...

Maybe something happened to some of the HD2's in production! After all, all of those who commented on this thread have the same symptoms...
[HD2 General] se1988:
Dont think anyone can... Why dont you try it and let us know??:)
[HD2 General] stirkac:
android works just great as it doesn't initialize anything that's got any connection to car kit.. it just isn't in kernel. so it works that way :)

but it's only temporary solution until android is on par with WM in terms of stability and battery.

damn it's perfect phone without single problem for me from first day ...until this... :mad:
[HD2 General] se1988:
tell me about it... everything was perfect until this
[HD2 General] sorin_crivat:
mine working again

dontknow exacly what did it but it works

at first i disabeled auto start navi panel unchecking in settings, all settings, system , car kit mode uncheck auto launch

then killed the app with task manager

restarted a couple of times

then i turned the phone off and removed the battery

cleaned the residue gathered in usb port due to moisture and dirt mostly (not much)

i used a sharp needle to clean evrything and then a toothbrush for the final touch

(dont recomend any of this just telling what i did because i suspected a shortcircui inside usb port)

re-asembled evrything noticed that evrything was normal again except evry single call was on speaker by default

so i changed that registry line with regedit (resco i guess dont remember)

the key is: hklm/system/current controlset/keypad/iscarkitmode

set it to 0 (zero)

and that.s it

now i cand enjoy my phone again

p.s. now strangely i have almost double battery life

so i guess the usb port was dirty

and soft was stuck that way even after cleaning it

either way i don't care anymore

now i protect the usb port by inserting the phone into its cover usb port first so iit doesnt catch any more moisture or dust

hope helped

bye;)

:D
[HD2 General] fred38:
Exactly what happened to me! I was in a tropical environment and the micro usb corroded. I had complained that it was changing to landscape mode and would not change back - the switch to autonavi panel was so quick upon startup that I didn't realise that was what was causing the landscape rotation.

I submitted it for repairs and corrosion issue was caused by liquid damage due to the moisture content in the air. The Telstra repair centre told me it was because of the phone "being exposed to air" ...

C'mon Telstra - I think I would find it mildly difficult to live in a vacuum....
[HD2 General] se1988:
i'll bet that wont last for long, and i am sorry to say so... hope it'll last tho...