Database Users

Can somebody tell me where is located HD2 wifi antenna?

I changed touch screen and after that loose WIFI and BT signal
maybe antenna problem

nedko76 said:
I changed touch screen and after that loose WIFI and BT signal
maybe antenna problem
Click to expand...
Click to collapse
wow. I have buy a second hand device and I have the same problem. For sure my screen was changed. I have open the phone from the video here:
http://pocketnow.com/hardware-1/official-htc-hd2-disassembly-assembly-training-videos-leaked
...but nothing ((
Antena it's in up-left when you watch on phone.

I am almost sure at the left side directly under the volume button .

Robert A said:
wow. I have buy a second hand device and I have the same problem. For sure my screen was changed. I have open the phone from the video here:
http://pocketnow.com/hardware-1/official-htc-hd2-disassembly-assembly-training-videos-leaked
...but nothing ((
Antena it's in up-left when you watch on phone.
Click to expand...
Click to collapse
Those videos are awesome..I see myself disassembling my HD2 after couple years

Robert A said:
Antena it's in up-left when you watch on phone.
Click to expand...
Click to collapse
It won't be in the upper portion of the phone, as this increases the strength of the radation the head is exposed to. I believe there is a law prohibiting it from being too near to the skull. Which is why all antennas in modern phones are internal and not placed by the speaker at the top of the phone.
Although this seems to not apply to GPS, Bluetooth and Wi-Fi, which is what those wires by the speaker at the top of the phone are.
Class 1 Bluetooth devices can cause exposure to radiation similar to that emitted by a cell phone if they are operated in the immediate vicinity of
the body. Bluetooth devices are designed to limit the radiation power exactly to that actually required. When the
receiving device indicates that it is a few meters away, the transmitter immediately modifies its signal strength to
suit the exact range, which reduces the total emitted radiation and signal interference (IT'IS 2005).
A study commissioned by the Swiss Federal Office of Public Health (FOPH) measured SAR for several Bluetooth
devices, including two different class 3 hands-free cell phone headsets. The headsets tested had SAR values of
0.001 and 0.003 W/kg, which is 34 and 12 times lower than the SAR of the lowest-emission cell phone currently
available (Swiss Federal Office of Public Health 2009a).
The article can be found here.
Click to expand...
Click to collapse

The cell antenna is the strip on the bottom below the battery door,the wifi antenna is at the top right (if looking at it with the screen up),and the gps antenna is at the top left. There is a white cable that is supposed to run from the gps antenna to the bottom side of the main board,and a black shorter antenna cable that is for wifi that plugs into the top part of the board. I have a pretty strong feeling that the person that fixed your phones (whether that was you or someone else) probably didn't plug that cable in the right way.
<EDIT> By the way,if either of you want one that works the right way/for parts,I have one for sale that the volume buttons don't work and the lcd is cracked,but everything works other than the volume buttons.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270637114813&ssPageName=STRK:MESELX:IT </edit>

Anyone ever have any antenna issues without taking apart the phone? my phone just developed issues with dropping wifi unless im close to the router, im guessing an antenna cable is loose. and for those who have fixed the antenna issue, how hard was it?

according to the HD2 manual, the antenna is the bottom 1/5 of the phone

WiFi antenna in HD2
Robert A said:
wow. I have buy a second hand device and I have the same problem. For sure my screen was changed. I have open the phone from the video here:
http://pocketnow.com/hardware-1/official-htc-hd2-disassembly-assembly-training-videos-leaked
...but nothing ((
Antena it's in up-left when you watch on phone.
Click to expand...
Click to collapse
The WiFi antenna is located at the right of the camera watching the camera in the back panel. If you watch this video, http://pockethacks.com/category/service-manuals/, you will see that the Bluetooth/Wireless atennas are located together and connected to the main board with a coaxial cable.

msnuser111 said:
The cell antenna is the strip on the bottom below the battery door,the wifi antenna is at the top right (if looking at it with the screen up),and the gps antenna is at the top left. There is a white cable that is supposed to run from the gps antenna to the bottom side of the main board,and a black shorter antenna cable that is for wifi that plugs into the top part of the board. I have a pretty strong feeling that the person that fixed your phones (whether that was you or someone else) probably didn't plug that cable in the right way.
<EDIT> By the way,if either of you want one that works the right way/for parts,I have one for sale that the volume buttons don't work and the lcd is cracked,but everything works other than the volume buttons.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270637114813&ssPageName=STRK:MESELX:IT </edit>
Click to expand...
Click to collapse
What this guy said +1

I find myself in a similar situation to nedko76. I had to take my phone apart but just the case away from the screen circuit boards etc because the plastic led shield had come lose and was touching the vibration device causing a strange noise.
So i managed to get the phone apart (which was not as easy as shown in the video) i didn't touch the screen part at all, put it back together again and switched it on. To my relief it switched on, all looked good, the noise had gone from the vibrator however the only thing that is not working is the wifi.
I'm hoping someone has resolved a similar issue without the need to reopen the phone again as i can't help but think i will do this and see nothing wrong. Which would either mean i've somehow damaged the wifi circuit board or something else.
I use wifi alot and will miss it loads if i can't find a way to fix it.

As already mentioned, WiFi antenna seems to be feeded by a tiny cable, it is probably using some tiny coaxial connectors, those are usually relatively easy to accidentally disconnect. I would start from looking at those and making sure they are "wedged in" properly.

I have taken the phone back apart and checked all wires are pushed in and everything is connected from what i can see. But still nothing.
Wifi switches on but just stays at scanning. Now does that mean that the wifi is working but the antenna is the issue.
I'm just wondering if its a software issue somehow. As i never touched any part of the board, or antenna etc whilst it was apart and like i've said i couldnt see anything out of place or loose.

Dude,
There are 2 brass clips on the top right of the motherboard which attach to the rear case antenna. Make sure these brass clips are correctly functioning and working. There are 2 for the gps at top left big ones from memory then there are 2 at bottom for radio antenna and two at top right for wifi.
Make sure these are all ok...
If you can post a detailed photo(s) I can give you more assistance. Zoom in the motherboard and the clips if you do provide pictures.
Good luck

Yeah i saw these when i took the case back off yesterday, i looked at all them to see if there were any differances, any broken off etc but they all looked fine. I did lift the ones for the wifi and bluetooth just a little bit to make sure when the case went back on they would be in contact. But still no luck.
I find it difficult to believe that just taking the case off pushing a little bit flashlight plastic back into place would really stop the wifi/bluetooth from working.
I'll have to keep searching the web to see if anyone has resolved the same issue and what it actually is. It would be interesting to see if people take their cases off then just put them back on again if they have the same issue or whether somehow i've messed something up.

Dude, show me a pic of motherboard to see if all your connections coaxial are ok.
Otherwise, your hardware maybe fubar. I have opened mine several times and no probs.

Right I took my phone apart again this morning to double check everything. I noticed the cable attached at the bottom as mentioned in previous post. It lifted off a bit too easily, so I positioned it correctly and pushed it back down, my WiFi now works. So that was my issue.
So my advice would be if both your Bluetooth and WiFi do not work, it is more than likely the cable is lose. (more likely if your phone has been a part obviously)
Thanks for everyone's help and advice on here. no fubar hardware here thankfully

Common problem after service?
nedko76 said:
I changed touch screen and after that loose WIFI and BT signal
maybe antenna problem
Click to expand...
Click to collapse
I'm also experiencing this after changing a smashed screen... The accident it self did hardly cause this since I used the phone with full performance for about a week between dropping it on the ground and draging my sorry ass to the retailer. Since I don't intend to open this stuff up I guess I'll have to go back there. I will refer to this site if they try to indicate that their sloppy disassembling isn't the reason... Please, feel free to boost me with more cases like this...

I have replaced the screen myself and have the same problem with Wi-Fi only.
I dont know why Wi-Fi run only without the battery cover.
I' m trying to torque chassis for looking if it is a mechanical issue but it seem not.
I've tried also to connect the two little contact they are at the same level with the bottom of the battery looking the phone from its back without the cover.
I've not found yet any relevancy with the presence or not of the back cover related with Wi-Fi transmission.
I remember that when the phone was disassembled, I have slighty lifted with my finger the bigger one of the two lamellar contact of Wi-Fi antenna; anyone know if this could be the cause? Must to touch these contacts chassis or not ?

nothing else ?

Low signal strength

I just recently sent my phone to the shop so they can fix the digitizer, it broke on my pocket when I sat on it. After that the signal strength has gone drastically low, can this be a hardware malfunction or VPN issue? Thanks for the help

have you tried to update radio? its a good place to start. what are your system specs? what rom are you running. there no such thing as to much info when asking questions my friend.

I did not understand if your problem has appeared after the replacement of the touch ..
still looks like a hardware problem, the black coaxial cable that goes inside the black volume button may be loose (almost certainly) his fixation on a snap ring of 1.5 mm.
regards

I think you have broken (or lost connection) one of the four connectors which rely on the casing (which is the antenna on the plastic case)... see picture http://img862.imageshack.us/img862/9258/htchd2disassembled5.png

[Q] Proximity Sensor / Autorotation Not working after Screen Replacement

So I dropped my nexus 4 cracking the screen which required me to replace the LCD assembly. After putting it back together and firing it up I noticed that the Auto Rotation (Yes the setting is checked in the settings) and the proximity sensor are not working. I installed Android sensor box and it is getting no reading from the proximity sensor or the gyro sensor. I have taken the phone apart multiple times to ensure everything is connect and everything looks correct. I have also unlocked the phone and have re flashed the stock rom with it not fixing the problem. Any help would be much appreciated.

My wife destroyed her display. Did same but gyro works fine but proxy is the problem. Work around so far is to set power button to end calls becasue screen just goes black when making/receiving calls kind of makes phone useless if you can't see screen.
I too have taken it apart several times and still nothing. Next plan is to find a new sensor unit and replace it.
From what I have been able to see in all my searching the proxy is extremely sensitive any deviation in placement, smuge on unit or display, minor deviation on color of display, screen protector, any interference from skins can affect it so check all those also.
In one of the threads on the Galaxy Nexus there is a patch to turn off sensor and there is mention of app in market that does the same, haven't tried yet have to get phone from wife to try, could be possible solutions also.
Will post back with findings as I get to try them.
Found great app in market Sensor Kinetic Pro shuts off proximity sensor or any other sensor no more problem with black screen after making calls. Still going to try replacing sensor however found it on Amazon less then $5.00.

silvagroup said:
My wife destroyed her display. Did same but gyro works fine but proxy is the problem. Work around so far is to set power button to end calls becasue screen just goes black when making/receiving calls kind of makes phone useless if you can't see screen.
I too have taken it apart several times and still nothing. Next plan is to find a new sensor unit and replace it.
From what I have been able to see in all my searching the proxy is extremely sensitive any deviation in placement, smuge on unit or display, minor deviation on color of display, screen protector, any interference from skins can affect it so check all those also.
In one of the threads on the Galaxy Nexus there is a patch to turn off sensor and there is mention of app in market that does the same, haven't tried yet have to get phone from wife to try, could be possible solutions also.
Will post back with findings as I get to try them.
Found great app in market Sensor Kinetic Pro shuts off proximity sensor or any other sensor no more problem with black screen after making calls. Still going to try replacing sensor however found it on Amazon less then $5.00.
Click to expand...
Click to collapse
Somewhat comforted to see others are also having the same problem... I recently replaced my nexus 4 screen only to have my proximity sensor fail on me too. Interestingly enough, i disassembled my phone multiple times to test if the sensor still works, turns out it does, but it is super sensitive. In my first experiment I had the sensor dangling out of the socket to see if it was still receptive to light, it worked perfectly - I used my hand as a 'face-simulator' to test for sensitivity. I then tried to place it back in the rubber grommet with the grommet seated firmly in the socket and what I found was that it worked, so long as there was only limited pressure on the enclosure. For example, it only works when there are no adjacent screws (for the plastic motherboard cover) applying pressure in the nearby area. I thought I could live with that, but then I tried putting the rear plastic cover back on and,... back to square one, dead screen on-call. I figure it has something to do with either pressure sensitivity or perhaps the pressure from the screws or the rear cover pushes the sensor too close to the glass?
Anyway I'd be keen to see if replacing the audio jack will actually fix the problem, any of you guys had any success with that? Meanwhile i'm going to just use the power button for ending calls. Any tips for how to use the speakerphone during a call?
Cheers fellas.

New sensor arrived yesterday changed out my wife's non functioning sensor and new one working great. Old sensor was bad !!!! She had dropped the phone several times and last accident she unintentionally threw it. Suggest no one do that
Sent from my Amazon Kindle Fire HD using xda premium

silvagroup said:
New sensor arrived yesterday changed out my wife's non functioning sensor and new one working great. Old sensor was bad !!!! She had dropped the phone several times and last accident she unintentionally threw it. Suggest no one do that
Sent from my Amazon Kindle Fire HD using xda premium
Click to expand...
Click to collapse
New sensor arrived the other day, I have since swapped out the old one, everything works great now!

17
dhaub said:
New sensor arrived the other day, I have since swapped out the old one, everything works great now!
Click to expand...
Click to collapse
whered u get the sensor?

chamilun said:
whered u get the sensor?
Click to expand...
Click to collapse
I know this is old but I'm having the same issue. How did you guys make out? Were did you get the sensor? Saw one on ebay $109 seems pricey

btack said:
I know this is old but I'm having the same issue. How did you guys make out? Were did you get the sensor? Saw one on ebay $109 seems pricey
Click to expand...
Click to collapse
I put a case on mine and it started working. It always would work if i put a bit of pressure on different parts of the phone. So im not sure if bad contact on sensor or if more some type of alignment issue. But it does work now. speakerphone is terrible since cracked screen tho..

Proximity Sensor Problem?

Howdy.
On the Model: SM-N900W8" Bell Galaxy Note 3
Basically when in call, Here is a problem that is reoccuring for the past few weeks ever since a couple over the air (ota?) updates I have received compliments of google.
Enabled right now, via "call settings" = "Turn off screen during calls" is CHECKED with Green checkmark.
Just handset call, moving handset to ear to talk. Handset goes black. When removing handset from ear to click hangup, or press buttons, ie to "see" the screen... screen is continually black. - Fix = PRESS HOME BUTTON... brings screen up...
When on speaker phone call, screen is lit. Move hand to the first of 2 sensor circles by the main earpiece part, screen goes black, but does not return on.
I have tried *#0*#. = "Connection problem or invalid MMI Code". - However try again, and I get red green blue receiver etc etc.
I clicked "sensor hub test" and it went BLACK.
I had to click home button, unlock screen, and I get a white with black text stating that..
INT Check: OK
FirmwareCheck
MCU Firm Version : ST0113090300
Bin Firm Version : ST0113090300
MCU Name: STM32F401CCY6B
"blue letters" PASS
I don't see how it passed, a screen went black, did not return, just went black..
Hit the back button. Tried "TSP HOVERING". That works fancy, drawing green squares everywhere...
Under "SENSOR"
I move the hand over proxmimity sensor - ACD goes to 1000+ when I put my finger over it and the screen goes green with black fonts of the prox, acceler, barometer, lights, etc...
Prox is native when sitting still anywhere from 80-95 averages for ACD
Proximity is 0.0 and TSP Color ID: 00
The different tests are rather cool to try, but not helpful in solving my issue...
What I have done: Use a lcd led plasma tv screen cleaner from nexxtech for non streaking. A cloth that came to clean my glasses I have to clean the screen. It is streak free. I have used compressed air to thoroughly blow the area around the upper speaker / sensors and even had the battery out / cover off, etc and blown every hole around the phone.
I still cannot solve this issue of black screening.
The only resolution which leads my ear to "hang up calls accidentally" is to "un check" ie single box, no checkmark, the "turn off screen during calls" option.... ie disable that sensor thing...
I have hard booted, rebooted, cleaned, etc...
Suggestions?

I have the same problem, hoping I won't have to send my device to the service because it's a pain in my country and I will be without a phone for more than a week.
Anyone know any fix for this?
Sent from my SM-N9005 using Tapatalk

Does anyone have an idea on this yet?

See here:
http://forums.androidcentral.com/sa...-sensor-issue-during-calls-3.html#post3233866
And here:
http://forum.xda-developers.com/showpost.php?p=47329433&postcount=22
I plan on trying to return mine before re-calibrating via the above technique. Though I would like to hear peoples opinion on if its a calibration issue (i.e they didn't calibrate it from factory properly) or a hardware defect and the sensor it self is bad. My ADC value's when not covered sit at about 70 (clean screen after blowing with air at ear piece) My screen was solid green, wouldn't go white until I blew it out, I didn't check the value beforehand.

Went to Bell today and they will let me exchange it (backing it up now) I checked out the new phone they have for me and its ADC value is 30 with nothing close. From the link above it shows the "normal" value with nothing close to the proximity is around 10, not sure if I should be concerned with the new phone and try and find another if they are willing? Either way its better then my ADC 90 I'm getting today (blew with air yesterday to get it down to 70)
Thoughts? I would love to know a few more peoples ADC values.

bnevets27 said:
See here:
http://forums.androidcentral.com/sa...-sensor-issue-during-calls-3.html#post3233866
And here:
http://forum.xda-developers.com/showpost.php?p=47329433&postcount=22
I plan on trying to return mine before re-calibrating via the above technique. Though I would like to hear peoples opinion on if its a calibration issue (i.e they didn't calibrate it from factory properly) or a hardware defect and the sensor it self is bad. My ADC value's when not covered sit at about 70 (clean screen after blowing with air at ear piece) My screen was solid green, wouldn't go white until I blew it out, I didn't check the value beforehand.
Click to expand...
Click to collapse
I can't install superuser as i'm on a different model then the 2 common series out there... Unless you have some way to install root to correct...
It's more then likely difficult to complete without this...

well, I've had this exact same issue, but I read somewhere that if I blow into the earpiece (no air spray, I mean by my mouth, normally blow air into earpiece) it might get fixed. so I did and it is ok now it seems there might be getting dust under the glass through the speaker

jmaciak said:
well, I've had this exact same issue, but I read somewhere that if I blow into the earpiece (no air spray, I mean by my mouth, normally blow air into earpiece) it might get fixed. so I did and it is ok now it seems there might be getting dust under the glass through the speaker
Click to expand...
Click to collapse
I used a can of compressed air... and ADC went form 120 and non working proximity sensor to 10-15 with a good working proximity sensor.
I've contacted the seller where I bought my device (Omegacell somewhere in Alberta... for a SM-N900 imported from some other country)... they told me that if I can reproduce the problem, they will replace my device since I bought the exchange warranty at the same time. So now I'm back to square one... because I got it working with the air through the speaker "trick". Hoping that this fix will last for ever... but if it ever comes back, I hope that it will be within my 1 year exchange warranty.

Deep cleaning
I had the same problem with my proximity sensor. First it wouldn't work at all. Then ,after wiping the screen and blowing (with compressed air and mouth), it would work somewhat. The screen would go black when I put it to my ear but would not come back on after I took it down.
I tested it by dialing *#0*# and using the "Sensor" button. It would sense my hand approaching the sensor but not my hand going away.
I disassembled the phone following the instructions from GalaxyNote3Root.com (Sorry I can't post a link, not enough posts yet).
I wiped the sensor and the inside of the glass with a clean cloth, reassembled and the phone is now good as new.
This might obviously void your warranty, but on my AT&T SM-N900A there are no seals or tapes of any kind that has to be broken to get access. So no warranty voidage. At least no way anyone can tell you the phone was opened as long as you are carefull.
The whole operations takes about 15 mins.

[Q] Phone damage - GPS

Just looking for some info that I Can't find doing searches.
My note 3 was thrown at a wall. The main impact was the upper right corner, near the front facing camera. The frame was bent and the front screen was shattered entirely. The screen did not even light up at all when turned on.
I've had the front screen / case replaced. The phone now looks as good as new but the following two things do not work:
- front camera (it works but its blurred. Repair guy said it was shattered)
- GPS (cannot get a lock at all, not even sure if its being detected or what)
I have a new front camera coming in the mail (less than $10), but where is the GPS? I know it's located around the impact area, but what are my options / what could it be? The repair shop said the board looks ok, but I only found out the GPS wasn't working when I was trying to use navigation on the way home.
Can I replace the GPS antenna? If so what is the part called as I cannot find it anywhere.
I am hoping that the repair shop didn't seat a ribbon cable or something but I know this is probably unlikely and that the GPS is broke. If this is the case, what can I do to fix it?
Thanks,