Related
Hi,
I'm planning to make a car kit for my xda2 using a second-hand car kit from another phone, a spare cradle and some creative thinking.
My aim is to make an installed car kit with the following features:
1) Charge the phone from the car battery.
2) All phone and pda audio to come from the car speakers, not the pda speaker.
3) Easy to put in and take out of cradle.
4) Able to use voice activated software via installed car mic.
I will document what I do (with photo's) here and try to put together a step-by-step guide, but I could use some help.
Has anyone tried this with any amount of success? I have seen the connector pin diagrams etc on the wiki site. Can anyone add to these?
Just as imporantly, has anyone tried this and fried their xda2??? :?
Please post your advice here and I'll let you know how I go.
Cheers,
Hooligan
Have tried it with a nokia cark91 but with no succes because the nokia cark91 uses the FBUS to activate certain features.
Didn't have enough knowledge of both to write a program which could emulate the FBUS protocol.
Will be watching your progress. Very interesting!
Success.
Mark
T-mobile can't build one, O2 can't build one, Catcomm can't build one, even i can't build one :roll: :mrgreen:
Why do you think you would succeed ?
Serious : All the info needed is on this site, and/or in my head. Theoreticaly it should work, but it doesn't.... Biggest problem is that the XDA2/MDA2 ONLY gives audio trough the bottom connector if you're in Call, so forget voicedialing or TomTom over the carkitspeaker.
Easyest solution is to build a carkit with you can connect to the headset connection.
Connectors ?
Hello
I seek the diagram of the connector 22 pins for XDA II
je fabrique un Kit main libre avec GPS
MERCI MERCI
Hi Alain,
Look here:
http://wiki.xda-developers.com/wiki/Connectors
Hi Jpiek,
thanks for the words of encouragement! :wink:
I'm studying the circuit diagrams for the nokia car kit I have obtained. I'll let you know how my experiments go...I have to agree, I think that the earphone jack may be the best way to go....
Hooligan
I spent many hours doing this with an XDA I, and got something sort of working but not what I really wanted. Here are some notes...
The XDA I has a horrible ground loop problem on both the input and output. I don't know if the II has the same problem, but I imagine so.
The output is very low, requiring a pre-amp. And because of the above, it had to be ground-isolated, which adds a lot of complexity (for someone like me who is MANY years past high school electronics class...).
Ericsson and Nokia car kits require some proprietary signalling in order to function, so they were useless as a starting base.
The built-in mic is actually quite usable in-car, producing a slightly hollow and distant sound but not horribly so. It has quite effective echo cancellation.
Thank you very for this address
who my permi to produce a connector for a SPV E200
but the stitching of the SPV M1000 does not correpond I
continue my research
goodbye
OK, looks like zapro has beaten me to the punch.
He has updated the connectors page in the wiki with a car kit wiring diagram and has started a new post - "Finally !!! DIY car-handsfree for XDA"
http://forum.xda-developers.com/viewtopic.php?t=11063
I'll keep experimenting as I don't think he has all of the audio output through the car stereo yet.
Well done Zapro!
hooligan said:
OK, looks like zapro has beaten me to the punch.
He has updated the connectors page in the wiki with a car kit wiring diagram and has started a new post - "Finally !!! DIY car-handsfree for XDA"
http://forum.xda-developers.com/viewtopic.php?t=11063
I'll keep experimenting as I don't think he has all of the audio output through the car stereo yet.
Click to expand...
Click to collapse
Ofcourse not, his solution allready worked over here, but it wasn't good enough for me. For phone i use a BT headset. I want all audio !!
(Yes, i'm still trying..)
Yes it DOES work !!
Hehe, my homemade carkit DOES indeed work flawlessly !
I Have an extra box besides the electronics shown in the diagram, a box with a amplifier and some relays. when the phone rings, i press a button, that powers the amplifier and the relays, disconnecting the speakers from my car-radio and over to the little amplifier. i promised you some pictures here a day ago, but i don't think it's nice enough to show off yet. i need to make a new case for the amplifier and relays. the one i am using now is just a box from the junkcase.
I Will be back soon !
// Per
My XDA carkit was relativly easy ;
I opened the Tomtom cable on the XDA side and wired pin 2, 3 and 4 to a general Car-amplifier...
I used the internal mic, with a brodit holder: perfect!
I came across this product and had to order one for my tomtom kit, it is the loudest speaker moutn I have ever heard, and the XDA 2 fits in the mount perfectly:
http://www.pdamods.com/products.asp?cat=78
I used to have a ipaq 1910 and the speaker on that was rubbish, then upgraded to an XDA 2 and thought it was better than the 1910 but could not hear the voice directions if the radio was loud, however this mount is seriously amazing, it has its own built in amplifier with full volume control.
I have got this holder for the car, unfortunately the TomTom GPS receiver has a RJ11 connector and the holder has a mini USB port, so therefore i can not use it.
It came with a PS2 to mini USB connector and thats it.
Very sad if you ask me
I'm now waiting for a lead connector from TomTom RJ11 to Mini USB
Sorry to hear that they may have made a mistake cos I chose tomtom cable and they sent me the RJ11 cable - believe me when you get the right cable you will love this device !!
On ebay is sold a little rechargeable device called car baby, it clips over the speaker and then you get the audio from the xda or any other device through your car speakers.
Arkon PDA Mount
Hi guys,
I'll let you know my experience with the Arkon car mount kit.
First what I have?
1) O2 XDAII
2) Arkon car mount kit for Vent and Windshield mount.
3) Arkon cables for XDAII
4) Emtac CRUXII/BTGPS
What you gain?
1) A complete car kit that charge both devices (XDA and BT Gps)
2) A handsfree car kit with a good speaker
3) A handsfree Navigation system
Hope this helps a choice.
All these powered mounts are great (i've got the Arkon PDA Mount) except that they all pick up the background radio signels that the phone transmits when it is active or syncing with the network and that's really annoying if you're driving along trying to listen to anything else.
I've had the same problem as you jashry but I've found a little S.P. (Service pack) to that.
Just turn the 3,5 mm cable so that it touches the Arkon device on the backside. And you'll hear less noise due to GSM signal.
Hope it helps!
Arkon 700 car mount for XDA2
I called a well known supplier of kit based in Manchester and asked for a car mount for the XDA2, to run with (and charge) a Bluetooth Tom Tom headset.
The first set came without an audio lead - so rendered the XDA2 useless for receiving calls.
I called and was rudely told of the company's arcane returns policy which made me see red (working in the legal profession) as the kit was clearly defective. To save time, I bought another one subject to some concessions re postage and return of the original etc.
The second kit arrived - complete with a 3.5mm audio lead. The XDA2, which I specified, has a (standard for mobile phones) 2.5mm audio socket. So, it is still useless.
Tried it with a jack adapter (3.5 to 2.5mm) - sound is barely audible, even with everything turned up and "loud' selected on the Ultra Profiler. So, both are now going back with a terse note regarding the Sale of Goods Act.
Can anyone recommend a good car kit (and where to get one from, ideally quickly). Basically, I need something loud and reliable, that will charge a TomTom bluetooth GPS. Ideally, I would like something that can be vent mounted (neater, less 'shake') tha can be hard wired (neater).
I am afraid that finding a jack adapter was at the limit of my technical abilities - suggesting that I splice this and patch in that is akin to suggesting that I learn to fly or communicate by ESP. I wish...
Thanks
PDAMOD Speaker mount for Qtek
Bought one of these mounts that Jashry recommended, but I'm having all kinds of problems with it!
To use the amplifierfacility I have to use the audiosocket in the corner of the Qtek, and they do indeed supply a small cable for that.
But when this cable is mounted, the Qtek barely touches the bottomsocket of the mount, and the connection is lousy!
Actually I HAVE heard the voice, because I can "rock" the Qtek to the side a little, and then I can test the TOMTOM voice, and it sounds great, problem is this prohibits the connection to the GPS, so at the moment it is useless.
On their homepage I can find pics of a Qtek in the mount, but without the little cable in the corner....!
Wonder if anyone uses this device, and if they have had the same problems and maybe somehow solved them?
/HM
angusmcintyre said:
All these powered mounts are great (i've got the Arkon PDA Mount) except that they all pick up the background radio signels that the phone transmits when it is active or syncing with the network and that's really annoying if you're driving along trying to listen to anything else.
Click to expand...
Click to collapse
Sorry I'm a bit late on this thread, but have you tried using an external antenna lead on your device? This should direct all of that radiation where it belongs.
I have to add that I haven't chosen my amplifier cradle yet because of this issue, but I am eager to know whether the antenna theory does work.
I too tried the mount recommended (after the Arkons which went back) and the loudest sound I have ever heard is interference from the radio signal of the 'phone.
Anyone want one? At the moment it is just an overpriced charging cradle.
I now have a 'Silver Shield' mount, and yes it does sqawk when the phone transitter is operative. However, it also does that when I hold it near my nokia, but not when the nokia is in its car-kit. I should be receiving an external antenna tomorrow, so I'll let you know whether the theory works in practise. In the meantime Dr. Fresh, I'll take any unwanted goods!
I tried the Arkon mount, it landed somewhere near the service station at Bristol on the M5 when I launched it out the window, interference was so loud, it should have been returned to the designer and inserted up his ass....sideways.
It works!!!!
Just got my external antenna and adaptor; plugged it into the XDAII, inserted this into the amplified mount and hey-presto, you can hardly hear the interference, whilst the audio signal is strong enough that you could leave the whole lot at home and hear it on a trip to France! (Well, almost!)
My only problem now is that the Antenna adaptor is a bit bulky, sticking out of the back (about 11mm or so), which makes it a little lop-sided in the holder. I now have to take a look at modifying the mount to fit the connector in. Will let you know how I get on
Inspecta. I am interested to know if using an external antenna fixed the problem. I think it will probably make it worse, it is direct rf breakthrough from the phones radio causing the problem and I think the antenna lead is just another place for it to splash its unwanted interference over.
Interference
Hiya Cruisin,
absolutely, it is the external antenna which rectifies the problem.
When using the internal antenna, all of the r.f. energy is in close proximity to the speaker and amplifier. By using an external antenna, you have the same amount of energy, but it is radiated from the antenna located on (in this case) the windscreen. Energy is radiated in all 3 planes, so the interference reduces by the CUBE of the distance, therefore, by doubling the distance from the speaker/amplifier, the amount of interference reduces by eight times. You can verify this effect by placing any mobile up to your car radio; it will eventually pick up the noise, no matter how good the radio.
........ sorry about going off on one! Yes it does work; I removed the external antenna, and the set-up went back to its bad old ways, replaced it and everything is great!
(Now got to get some shares in external antennas!)
And now I will admit my stupidity by telling you I was pretty stoned when I wrote that reply and for some reason i thought you were referring to an external gps antenna, now I cant blame the dope so i will accept all responsibility, thanks for the lowdown on the rf.
or you couyld get a holux like received this morning just tried it and its great amplified speaker and built in gps receiver worked with my xda2 no problem
Must have missed something here.
I've got an arkon powered mount CM532 with built in speaker and gps connection but the voice prompts from the nav software only come thru the internal speaker on my XDA2. I can't get them thru the mounts speaker.
Any suggestions?
ROM 1.60.00WWE
ExtROM 1.60.50
Radio 1.10.00
Did you get a cable to plug into the handsfree socket and into the amplified mount? You need this for all of the mounts that I looked at. If you ordered the mount specifically for the XDA, you should have received a cable to go with it.
i dont know if anyone ahs noticed this before. I had a xda 1 and the o2 car kit. i fitted a switch on the radio mute, and wired the kit,s speaker jacks into my stereo,s aux input. this allowed me to listen to wmp, or any other app. Then i bought an xda2 and everything went wrong. so i decided to try sort it out.
My plan was to modify the car kit to accept the phone, and cut out a notch so that i could use the headset, and cut it up and wire it direct to my stereo,s aux input.
however, after i did the cradle mods, i had the phone sitting in, testing it. At this stage my kit was still wired as per my xda1. The phone works fine, including mute. Then, i tried wmp. As reported , there was no sound. I then plugged in my headset, whilst the xda was in the cradle, and IT WORKED!. Sound from the wmp went out via the car kit and into my aux input! I Bought a new2.5 jack, with no wires, and i just insert it, before cradling the phone and i have the exact same functionality as the xda1!...its really kool, as my Haicom gps works fine too. I havent tested Fonix, ie., does the mic work before u activate the phone, but im hopeful.
Now, my final problem is the charging issue, and id appreciate advice. My proposal is: to purchase an appropiate universal lapto car power adaptor,
To purchase a 9 pin lead, which will sit between the carkit and the cradle lead. Then all i have to do is patch the power adaptor into the 9 pin lead, deleting the original power. Will this work, and what size power adaptor will i need [v/curent], and whats the wiring mod?........id love to know if the headphone jack trick works on all kits/.....it may be posssible to buy and modify a jack plug so that it fits in wiyhout modifing the car kit....
N
re the charging issue
ok..ive read all posts concerning this issue and there appears to be some confusion....can the original xda car kit supply enough current to satisfy an xda11 and wired haicom gps. Some posts imply that there is a wiring difference which makes the unit appear to be charging whilst there not, whilst some posts say its because the original unit can only supply 1 amp.......can someone please advise?
I gues you have to get the 2.5mm plug out when you leave the car in order to use the mic/speaker?
charging issue
ive just tried the unit in the car, both with and without the haicom connected. both times it said it was charging, but both times the battery level actually fell.....this indicates that there is a wiring difference between XDA2, in the charging cct. funny thing though is that the xda2 charged using a cheap cigarette lighter type charging lead....can anyone explain this?
must be the charging circuit. I found that even a 400mA charger is enough to charge the Himalaya.
My XDA II Car kit has a jack plug on the bottom, but if I use that no sound comes out. I'm assuming this takes audio out from the 22pin connector at the bottom of the XDA II.
When you say you've plugged a 2.5mm jack into your XDA you mean the socket on the actual XDA itself right? And that enables audio through the 22pin connector or does it just output audio through the jack?
My problem is now that I'm going to have to rip my (very expensive when I bought it) XDA II Car kit to pieces to put a 2.5mm jack into the bottom of the phone when it's in the car kit!
Is there nothing at all that anyone's got to force the XDA out of in-car mode or anything or is that completely hard-wired?
God this is annoying! Why is there always something wrong, even with the coolest gadget in the world!
I have the same problem.
It used to work with rom 1.03 (as I remember) but after an upgrade, the sound from MDA2 except phone call went through the build-in speaker.
HTC knows this problem, but dont do anything about it.
A conspiracy agains carkit mod'ing.
This issue is known since approx last april.
It MUST be the carkit:
XDA2/iMate carkit only supplies in-call phone audio via the carkit speaker
MDAII/Qtek2020/Yeti carkit supplies all audio via the carkit speaker (dis-advantage: It continuously mutes the radio when ie using TomTom, but that can be fixed by using an alternative radio-mute circuit/switch)
Both carkits only use the 22-pin bottom connector of the Himalaya to accomplish this.
Until now (afaik) no one has succeeded in finding a solution for this.
I wish I bought my carkit 2 month later, at that time the MDAII carkit was sold for approx 170 euros (compared to the 140 for the XDA2 carkit). The extra functionality is really worth the extra 30 euro.
Alternative radio-mute circuit/switch
@edsub
edsub said:
(dis-advantage: It continuously mutes the radio when ie using TomTom, but that can be fixed by using an alternative radio-mute circuit/switch)
Click to expand...
Click to collapse
A few weeks ago I bought the MDAII-carkit and am still preparing to install it in my car. I will use it with Alturion navigation software, but expect that this will create the same proble as TomTom (constantly muting the radio).
Could you elaborate on the "alternative radio-mute circuit/switch". I.e. how to create it/where to buy it?
Thanks in advance, regards
Albondigas
You can buy an audio-mute box.
You place it between your car-speaker leads and connect the carkit audio out to it (mono or stereo).
As soon as the mute-box detects a signal on the carkit audio out, it switches the car-speaker from radio to carkit.
It seems to work quite well, but since it is based on detecting a signal an then switching, i can imaginge you lose frist 1 or 2 seconds of the carkit-out.
No idea how that works out with TomTom . . . .
XDA II Car Kit
eayuwna said:
Is there nothing at all that anyone's got to force the XDA out of in-car mode or anything or is that completely hard-wired?
Click to expand...
Click to collapse
Check pin 19 of the plug wiring. This is the pin used to tell the XDA II it is in the car. When using the XDA II out of the car, in the Sync cradle etc... this pin is tied to ground.
I am about to experiment with making a car kit... If I have success with the audio, I will let you all know!
Recrem.
Audio mute with MDAII-Carkit
@edsub
Thanks, eDsuB, I get the principle and will look around where I could get the audio mute box.
And now I understand why Mocki in the german forum of ppc-welt inserted a one second 63 Hz tone at the beginning of the TomTom-audio files:
http://www.ppc-welt.info/community/showthread.php?t=40190&page=2&pp=50 (in german)
It would be embarrassing to miss the first three words of the message "in three kilometers turn right" :lol: .
How do you think about another solution on this forum and that is disconnecting pin 9 (orange/white) from the connector on the MDAII Carkit II. Apparantly that would also solve the problem with the permament mute of TomTom? See thread (it looks like you've been there also) http://www.ppc-welt.info/community/showthread.php?t=47131&page=1&pp=28 (in german).
Thanks very much,
Albondigas
I went in that forum a couple of times (especially when xda-developers was down), but since I have an XDAII/iMate carkit my problem is to get all audio thru the bottom connector . . . .
And even Mocki doenst have an answer . . .
Hi Guys,
I have just got the fantastic little E72 and it is great in almost every way. I want to be able to use my Shure headset with it so I need the adaptor that everyone else wants to find it seems. I have a HTC adaptor but it will not fit into the socket. The socket on my E72 has 5 pin holes and both sides of the interface are curved. The HTC adaptor has one curved side and a straight side so it will not fit in. The E72 does use the usb connection for its headset and audio output but when I did find a Samsung adaptor with both sides curved that did fit into the phone socket it still outputted the music to the external speaker so I am at a loss. There are, therefore, different types of mini usb connectors. Can someone tell me the exact spec of this one fitted to the E72 and possibly where I might get an adaptor that will work??
Much appreciate the help with this.
usb cant be changed to 3.5mm or any type of audio
the reason the htc one dont work is the same reason it dont fit
it have extre connectors which carry analog audio
normal miniusb is a serial digital interface which dont carry analog audio
and usb headsets for pc are really external audiocards which make the serial digital data to analog audio
and that require the ability to usbHost which few pda's support
Many thanks for the explanation. However, my phone came with a stereo headset with mic. I currently use this for listening to music but the quality is not good. Does this not mean then that I should be able to get analogue signal from it??
Please forgive my ignorance; I am learning!!
it all comes down to where you connect your headset
if it's the miniusb port benQ got an extention of miniUSB like htc's extusb
if it's a 2.5mm minijack like older htc devices used you can get a conveter to 3.5mm
The only port on the Benq E72 is the mini USB one. There are no other jacks. The problem is that both sides of the metal housing within this are curved so the HTC one (with one side of the miniUSB adaptor straight) wilkl not fit. I did manage to find and buy an adaptor that was branded Samsung and when I fitted it into the miniUSB socket on the phone it would not work. The music continued to play through the rear speaker even though the adaptor was connected. My supplied headset connects to the phone through the same miniUSB paor but again the metal housing of the miniUSB jack is curved at both sides. I hope this explains better.
as i said then miniUSb should not alow audio at all on the device
and htc use extusb which have more legs then miniusb so if it dont fit
it should not be because of any curves
does your benq device not alow headsets at all ?
if it does how are they connected?
The only connector on the Benq E72 is the miniUSB port. In the attached pic you will see the connector for the wired head set on the left and the miniUSB to standard USB for connection to the PC on the right. I looked inside the silver housing of the connectors on both cables and they seem to have 5 pins along the top (widest) part with the main section being hollow. Now the miniUSB housing on the actual phone does have a plastic inside with 5 pins and , I guess, more connectors along the top of this for the 2 cables. I am to assume that the plastic insert in the phone itsaelf is for the electric charger. There is nothing more that I can give you except to say again that the miniUSB is the only connector on the phone.
if it support headsets connected to the usb connector it must be using some sort
of special usb connector like htc's extusb
i would look at their site if they sell converters
Thanks, as I said the only way to connect the headset is by the miniUSB port so it must support audio. The issue is that the HTC miniUSb headset has a curved side and a straight side so it will not physically fit into the Benq E72 connector. I did get my hands on a philips miniUSB that did fit into the socket on my phone but the music still outputted to the rear speaker of the phone. So, my question is, is there different types of miniUSB wired internals? It would seem so. And would anyone know which would work for the Benq E72 windows mobile poweredsmartphone?
@ 17-apg,
Sorry for this off-topic post. Im planning to buy benq e72 because my o2 xphone2 is too old. Can you please give brief review of the phone, as a user. Is it true that it is laggish? Thank you.
second_east said:
@ 17-apg,
Sorry for this off-topic post. Im planning to buy benq e72 because my o2 xphone2 is too old. Can you please give brief review of the phone, as a user. Is it true that it is laggish? Thank you.
Click to expand...
Click to collapse
No problem ,,
I have the device for over 2 months now and like it a lot. Had a HTC S730 before which was thick and cumbersome and I didnt really need the keyboard. This phone, in contrast, is very light and thin. It runs WinMo 6.0 and I do not find it slower than the HTC in any way. On reflection maybe a little faster even. It is very competively priced as it includes bluetooth, quad band radio and wi-fi. The bluetooth also carries the A2DP functionality. The screen, whilst a little small at 2" is very bright and clear. The keypad has large buttons and is very tactile and positive when texting.There's a 2 meg camera included as well as the microSD slot with a max size of 2GB. You can, however, with software, increase this to the norm of 6GB which I have done. Also the rear speaker (built in) is a reasonable size and therefore can play a decent sound for music if you are travelling and in a hotel room for example. And finally, it has little important assets like the ability to turn on auto redial, a button on the left side which when pressed and held will open the text messaging in a send window. There is also the facility to adjust the screen brightness as well as an internet radio and ringtone editor. All in all, for the price, I definitely recommend this phone. I have bought four more since for friends of mine. They paid of course!!! Now all I need is the miniUSB to 3.5mm audio jack sob sob...
Can you tell if a lanyard can be linked to the device - and where? On all available photos on the net I have not seen any holes for fitting the lanyard to :-(
I am really tempted to get that one as well - escpecially as it is the ONLY (!) smartphone with only a normal keyboard that can use microSDHC cards (after installing updated drivers). They seem to double in size every year - and if the standard is fully supported 6 or 8GB (as reported sucesfully) should not be the limit.
Lanyard
Yes, you can connect a lanyard at the top of the phone. If you can see the top view of the device there is a little hole there. You simply slide off the back cover and fit the lanyard to the designated area on the main body of the deivce (very easily) and then slide the back cover on again.
Now we just need a cooked 6.1 rom for the device!!!
Thanks - I found a set of pictures at a Taiwan Review site (http://www.eprice.com.tw/mobile/talk/?prod_id=2621&tid=3430647&page=1&list_page=1) - this tells it as well
I was only looking for a small device that can read memory cards > 4GB and this is the one now. Otherwise my Tornado in the house of a Robbie still perfectly fits my need. I also tried WM6 and WM6.1 on that - but fell back to the original WM5 there.
Just can't wait to get it in my hands - it was really a bargain on ebay. Search for benq E72 there and you will see a guy in London selling refurbished E72 for just 69 GBP (9 of 21 left). I just could not resist for that price, sigh...
BTW - on topic: did anyone try the Motorola mini-USB connectors - for the Razor and alike?
I dont think so. DO you habve one that you coulkd try when you get the phone? If so, let us know here cause I would really like to use my own ear buds.
BTW I think you will love this phone! It really impresses me. And also Expansys anre selling brand new ones for about £90.00!!
Is there a WM6.1 for this? Thanks.
Benq E72
Not thatI am aware of. I know that another avid fan of the E72 has requested ROM cookers to try to come up with the 6.1 version bit I am not sure if anyone has taken up the challenge.
I hope that it will happen soon ...
I have received mine in the meantime, but the refurbished one was delivered with a non-fitting headset :-(
Well, it fits mechanically, but there is no sound at all. It looks like a cheap replica of a Motorola Stereo Headset - but also a normal Motorola does not work in this socket. So I am out of any possibility to measure the data of the socket to build an adapter. I complained at the dealer - hopefully there still is a working headset available!
Otherwise the device is nice - only English language installed though for menus and T9.
bye
tobbbie
With some help from Taiwan - the USB wiring for the headset is identified, see my blog article at http://tobbbie-benq-e72.blogspot.com/2008/12/hacking-usb-headset-connector.html for more details. The main information is:
....So the final result is then for the numbered pins of the USB connector (1-5):
Must be connected with a resistor less than 200 kOhms to ground (pin 5). The voltage will rise briefly to battery level but then drop back to 0,16 V to stay there. I suspect that accepting calls with the headset button will introduce new functionality here...
Speaker channel (l,r not checked, source indicates right here) - must be connected to a speaker or a pulldown resistor at device-headset connection time.
Speaker channel (l,r not checked, source indicates left here)
Microphone channel (checked to work with Audionotes)
Grounds
So luckily no complicated electronics - get your soldering irons ready!
BTW: have still not received the original headset :-(
I would need help with my HTC s620. Sometimes the mic works perfectly, sometimes it does not, so people on the other end of the line can not hear me at all or just very-very low. I already tried changing regedit and also used the audio gain and microphone fix .cab files, but the basic problem remained: sometimes the mic works, sometimes not. I made soft reset / hard reset several times, still the problem remains. With my bluetooth headset I always have good voice quality even if the mic on the phone is not working. Altogether this drove me to the conclusion that I need to replace the microphone in my HTC s620.
On Ebay I can buy a new replacement microphone for a few $ but I don't know whether I would be able to replace it on my own. Anyone has any experience? Do I need any special tools for replacing the mic in my HTC s620? Can anyone provide me with a guide how to proceed? Any help is much appreciated.
antic323 said:
I would need help with my HTC s620. Sometimes the mic works perfectly, sometimes it does not, so people on the other end of the line can not hear me at all or just very-very low. I already tried changing regedit and also used the audio gain and microphone fix .cab files, but the basic problem remained: sometimes the mic works, sometimes not. I made soft reset / hard reset several times, still the problem remains. With my bluetooth headset I always have good voice quality even if the mic on the phone is not working. Altogether this drove me to the conclusion that I need to replace the microphone in my HTC s620.
On Ebay I can buy a new replacement microphone for a few $ but I don't know whether I would be able to replace it on my own. Anyone has any experience? Do I need any special tools for replacing the mic in my HTC s620? Can anyone provide me with a guide how to proceed? Any help is much appreciated.
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There's a guide for taking apart your excalibur in the sticky, but honestly it doesn't specify how to change your mic but it will give a pretty good idea of what tools to use to open and re-assemble your dash.
Thanks for the response Mr. Clown. Indeed I would need a bit more specific info on how the MIC is attached to the phone and with what method it can be replaced. I read some forums on other type of phones where only the manufacturer is able to replace either the mic or the full board when it is impossible to replace the mic. As I mentioned earlier on Ebay there are two offers recently on OEM HTC mic for s620, however some forums also mention that even if a separate mic can be purchased, it does not guarantee that it can easily be replaced. Unfortunately I am not a tech expert, so I appreciate any guidance on this issue. Many thanks.
some possible solution
I searched a bit further on more general forums and it seems that I found the answer, so I post it here for others facing a similar problem.
It is not impossible but requires quite an experience and expertise to replace the microphone as it is soldered on the pcb. It needs high temparature heating and then the soldering of the new microphone. You can find new OEM microphones on Ebay (there are recently two offers: 3 - 6 USD price range + shipping), but you have to find someone who will replace the mic for you and who is experienced well and will not destroy your board with this procedure.
Here is a simple description of the process:
1. Set heater of your rework station between 400 to 417 degrees celcius, and air make the pointer of the air knob point aj 9 o'clock.
2. Select nozzle size that is not too big or too small for the mic.
3. Apply ample paste on the mic and direct the heat on it. Remove the mic with metal tweezers gently.
4. Apply paste to the interface of the mic to be soldered and then apply tiny solder on the pads to be soldered.
5. Place the mic correctly on the pcb and apply heat from the opposite side of the pcb, and remove the heat when the solder is melted.
Some have reported that this method really works, however I found no information whether it also works for the Excalibur as the interesting point is the exact place of the mic, so by heating it you will not damage other parts of the board.
I contacted the official HTC service and some other mobile experts, so I am looking for someone that can make the replacement for me... It is recommended that you also proceed similarly.
I hope this info will help.
If the mic sometimes works and other times not, why not trying to re-solder the contacts first? This is much easier than removing/replacing the microphone as you can apply the heat one contact after the other.
Dumb question: You are not covering the hole for the mic. with your fingers from time to time?
Thanks for the reply tobbie. I am surely not covering the mic with my finger or any other body parts ; ) So it must be the mic and not me causing the problem. For the time being I am still chasing someone experienced who could do the soldering for me... In the meanwhile I have flashed my ROM from 3VO.2.80.092509 to 3VO.3.50.033010, just to see whether this might be a software porblem. Flashing went well but problem remained. You are right pointing out that the MIC might be absolutely OK, as it sometimes functions well, and this might indicate that the problem is with the connection of the mic with the board and not the mic itself. However if I take the phone into pieces, then I would like to get it done, so I might still order this tiny mic on the internet. Out of curiosity: does anyone knows whether these mics are compatible with each other or not: I saw many Motorola (e.g.: V3) mics that look exactly as the HTC S620 mic, but I don't know whether they are really the identic.
For the time being I use my BT headset till I (hopefully) manage to solve this issue.
For a start, I would stay with HTC devices. All the older ones I have disassembled (typhoon, hurricane, tornado, excalibur, vox) share the same microphone (at least from the looks). Earpiece looks identical for all except the vox, ring-speaker looks identical for the 3 candy-bars while excalibur and vox seem to have the same as well.
Buying spare parts is usually more expensive than getting a used device with a broken screen or otherwise damaged. I have two definitely ruined boards (Tornado with a dead LCD interface + Hurricane with intermittent shut off) and some Typhoon parts that can not make a complete device.
Never soldered anything on the PBA - it is really delicate and if you spoil anything the board is gone. Possibly try to record something with the PBA accessible and apply some force to the mic while doing so. This should reveal if there is problem with soldering.
Many thanks for the help tobbie.
I will give a try and see how the mic would respond for such a "treatment". In the meanwhile I found a funny forum response from a guy who replaced a PCB soldered SonyEricsson W880 mic without a rework station, by just using a gas butane torch:
"I just managed to replace it. It wasn't so difficult.
First you have to unsolder the mic on the PCB (I used Gas Butane Torch from B&Q as I havn't got a Rework Station)
After that I found some old mic laying in my draw from samsung. I soldered it to the PCB using two thick copper wires
ps. If yo damage a track on the PCB you can solder a positive to the capacitor on the other side of the PCB."
Well it sounds a bit weird, anyway I would still go for an experienced expert with a rework station and proper equipment for replacement.
Danke und tschuss
Last night I dissambled my HTC s620 (it was a bit harder then I thought) and got to the mic, which is under a small rubber case, I cleaned a bit the surroundings, checked the contacts, but from the first sight everything seemed to be tight and fixed, still I pressed the mic a bit but no better mic functionality, actually now I can only here everything said in the mic very-very low and from last night there was no occasion when I could record with normal sound level. This might still indicate bad contact. Anyway, I will get now a replacmenet mic on Ebay and try to replace it. Will report whether it has really solved my problem.
The mic has the following numbers on it: S777 261, I don't know whether these types of mics are really compatible (I assume that they are - not only within the HTC brand but also with similar Motorola mics), anyway I will not go for a cheaper V3 mic but buy one which is advertised as an HTC S620 mic.
Same problem.
I've been using my excalibur for 2 weeks and, last night, in the middle of a call, my microphone stopped working. completely. does anybody have any idea of what i can do to solve this problem?!
please, i'm desperate.
amiloicram said:
I've been using my excalibur for 2 weeks and, last night, in the middle of a call, my microphone stopped working. completely. does anybody have any idea of what i can do to solve this problem?!
please, i'm desperate.
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You try to check the headset jack may be the cause of it