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OK I have been using my N1 for almost 2yrs now. I love it, but out of nowhere the connections on bluetooth, wifi, 3G, and occasionally cellular drop. Coincidentally it happened when 2.3.6 was released and I refused (updated since no change) the update. When I use my bluetooth headset I'm told I sound like I am underwater. I installed CM7 thinking that would solve it (maybe it's a stock ROM issue) but it was still the same. I can put my phone next to the router and still show (1bar) a poor connection .
OK so what can I do to fix this? I don't want to purchase a new phone (besides this glitch it looks mint) right now. Also I don't really have the cash for it either. Someone said the antenna may be loose (don't know how that would happen) and I could open it up and fix it.
Now you all Mod software but has anyone actually opened up an N1 and is there really a way to tighten the antenna? Please let me know if anyone else has had this issue or is there a way to test for a solution.
Thanks
A little more info
Was just on a cell call and noticed that the green cellular indicator turned white (no idea if that's related) it is back to green now and full. However this seems to be a pattern of being green 3G and Cell strength to white. Hope that provides so more info to someone trying to help me.
Green/white is an indication of connection to Google servers, nothing else.
Radio is only responsible for 3G data, bluetooth and WiFi are completely different entities and aren't related to radio. If you're experiencing bad reception - most probably your antenna contacts need cleaning or are misplaced, open the lower cover (not the battery one) and look there (this cover IS the antenna - just don't know which one).
Special tools?
Jack_R1 said:
Green/white is an indication of connection to Google servers, nothing else.
Radio is only responsible for 3G data, bluetooth and WiFi are completely different entities and aren't related to radio. If you're experiencing bad reception - most probably your antenna contacts need cleaning or are misplaced, open the lower cover (not the battery one) and look there (this cover IS the antenna - just don't know which one).
Click to expand...
Click to collapse
OK found a teardown on youtube of the Nexus one so I understand the antenna is on the bottom. However it looks like they used a special tool to open the case on the bottom. Where would I get that? Also considering I paid for it outright (yep unsubsidized direct from Google); even if I'm out of warranty would you recommend (if this is something more complicated) I send it to HTC for repair? Someone else said the Broadcom chip may have gone bad if both the wifi and bluetooth seem to stop working or have poor reception. Not sure if that seems correct since if it went bad I would think it wouldn't work at all but before I make tool marks trying to take it apart I figured I'd ask.
I'm not sure the repair will be worth it, financially.
If you want to open the lower part of the case - you may only need a small flat screwdriver and good hands, to avoid scratching the surface.
Something else now
OK now voice dial command isn't working when I hold the bluetooth button. Maybe indeed it is the chip. I was able to take off the plastic cover but I need to get a T5 screw driver (lol for some reason smallest I have is T6) so I will get one tomorrow and see how it goes. There is one more cover to remove and put back on. Financially since I paid full price I'm not sure why it's not worth fixing? I figured HTC would charge around $100 for a repair. Which is less than going price for a new (i.e. Galaxy Nexus II) phone . Also I haven't seen any new phones with a trackball (which I love for the notifications and when I need precise movement) so I really don't want a new phone till they add something like an optical trackball or improve precision on finger location. Also I might get lucky if the credit card I purchased it on will cover a repair (they double warranties) and I still have a few months left.
Nope!
Jack_R1 said:
I'm not sure the repair will be worth it, financially.
If you want to open the lower part of the case - you may only need a small flat screwdriver and good hands, to avoid scratching the surface.
Click to expand...
Click to collapse
OK got the required tools and took it apart (both covers on the bottom) and then re-assembled it back, making sure I seated the vibrator motor back carefully. Turned on the wifi and still have same issue. So guess my phone is broke further than I can repair it. Thanks for your advice but unless there is software to check that chip it looks like only option is HTC.
Yes, looks like it might be damaged beyond the home repairs capability.
Financially - If I were you, instead of spending $100 on Nexus One repair, I'd sell it for parts for $70 or so, added the $100 you wanted to spend on the repair, and bought a used MT4G in good condition. You'll lose colored trackball (and get a trackpad - which, if you use Sense ROMs that this phone runs perfectly, will be absolutely useless), but gain WAY better phone, in just about every aspect you can think of. The same applies to any phone you can get for cheap from "outdated" MSM8x55 family - Desire HD/Desire Z/G2/Desire S (some of them aren't compatible with T-Mobile frequencies, put attention). I know this from first hand experience, since until recently I had 3 of them - Nexus One, MT4G, and Desire S for my wife. Guess which phone did I get rid of?
But - just in case you'll want to follow this advice and settle specifically on MT4G - make sure you read MT4G forums thoroughly before you do. There are 2 weak points for MT4G - the screen (more important) and the eMMC chip (less important, but still counts). Both can come in 2 variations, better and worse. Make sure you choose the better.
Hello,
My note fell into the water last night and it was a pain in the ass to fix. I kept my phone in a bag of rice overnight to soak up most of the water. Today I took it apart and removed the remaining water and put it back together. The phone finally works again! Yes, it all works except for the service.
When I unlock my sim with my code everything works, but I cannot call or be called because there's no service, even though whatsapp etc works fine.
Can anyone help me with this?
Also: sometimes it DOES work, but the signal is very weak. Sometimes I can call and be called and sometimes I cannot.
You might have disconnected the antenna while taking it apart. Check for bent connectors etc. You can also check the external antenna - remove the small black rectangular sticker on the right side of microsd slot above the battery. You can insert a thin copper wire with a piece of aluminum foil connected to it - you should get some reception. If you don't and you internal antenna is properly connected then the water might have damaged some electronics. It can get expensive.
Be careful and don't hold me responsible if you mess up your phone any further. And good luck.
I'm not sure. I'm still getting a signal every now and then. Is there a video on how to do this by any chance? And do you have a picture of the antenna by any chance so I know what to look for?
Sorry, can't be of much help here, never had to open my Note. But I remember back in days whaen I messed around with my Touch Pro 2 and HTC Desire it was a common issue. Nearly every time I got the phone back together either phone signal or Bluetooth were gone and the reason was always some bent copper connectors that didn't stick together when all the parts were back in place. These things are fragile. Sometimes had to clean them as well. Google for Samsung Galaxy Note N7000 disassembly manual, I'm sure there will be one with decent pictures somwhere online, it'll help you locate the internal antenna. If there's some weak signal sometimes it's a good sign and looks very much like disconnected antenna, you may check the external one to be 100% sure.
Edit: the antenna is a thin copper sticker somewhere on a flat surface of the chassis, either on the side or around the camera or something like that. It's often painted in the color of the chassis to prevent it from oxidation. There are several - phone, bluetooth, probably wifi and maybe GPS (dunno). It's usually possible to follow where it leads to and find connectors.
http://www.youtube.com/watch?v=N6CJy71_9Ok
watch the whole thing but pay particular attention around 3:10
Hi,
Brought the Sony Xperia ZR a few months ago.
It was giving problem with Bluetooth right from the beginning but haven't bothered about it as I used it rarely.
The wifi initially was working fine, but few days ago it just refuse to turn ON.
When tried to turn ON the wifi using ON/OFF slider it hangs up showing pale blue color & comes back to OFF state.
The exact same thing happens to the Bluetooth slider as well. (See attached screenshot)
Searched in some forums & see many people faced similar problems with their device as well.
However no one have given proper solution for it.
Tried everything from Re-boot, Factory Reset & Phone repair option using PC Comparison...None have worked to resolve the problem.
Some people say it is hardware issue & needs replacement of device however others say they had same problem come back even in replaced phone as well.
There was something mentioned about region code reset mentioned here
android.kul.is/2013/09/sony-xperia-zr-wifi-problem.html
but it looks unverified.
PLEASE provide solution for this issue.
Thanks in Advance.
There are other people who have similar issues, including me. Symptoms vary, but ultimately we are unable to use wifi and BT.
I have an additional issue with no USB connection to PC
Sent from my C5502 using XDA Free mobile app
Will downgrading work?
genieass said:
There are other people who have similar issues, including me. Symptoms vary, but ultimately we are unable to use wifi and BT.
I have an additional issue with no USB connection to PC
Sent from my C5502 using XDA Free mobile app
Click to expand...
Click to collapse
One of my friend is using the same phone for over a year now & have not upgraded to Kitkat & never had any issue.
Do you think downgrading the phone from Kitkat to JelllyBean will resolve this?
Don't know. People say that things work igf you poke the phone at right places. (is the ZR a human to get excited when fingered right?)
I had some success doing it and wifi worked for a few hours. This is obviously a hardware issue.
Sent from my C5502 using XDA Free mobile app
velasoraptor said:
Hi,
Brought the Sony Xperia ZR a few months ago.
It was giving problem with Bluetooth right from the beginning but haven't bothered about it as I used it rarely.
The wifi initially was working fine, but few days ago it just refuse to turn ON.
When tried to turn ON the wifi using ON/OFF slider it hangs up showing pale blue color & comes back to OFF state.
The exact same thing happens to the Bluetooth slider as well. (See attached screenshot)
Searched in some forums & see many people faced similar problems with their device as well.
However no one have given proper solution for it.
Tried everything from Re-boot, Factory Reset & Phone repair option using PC Comparison...None have worked to resolve the problem.
Some people say it is hardware issue & needs replacement of device however others say they had same problem come back even in replaced phone as well.
There was something mentioned about region code reset mentioned here
android.kul.is/2013/09/sony-xperia-zr-wifi-problem.html
but it looks unverified.
PLEASE provide solution for this issue.
Thanks in Advance.
Click to expand...
Click to collapse
It's a hardware fault. There's a flex cable attached to the motherboard that comes loose and this leads to bluetooth and WIFI problems. Bluetooth seems to be the thing that goes first which is what you've seen people complaining about.
You can fix (at least temporarily) by pushing the flex cable in.
1. turn off phone
2. take out battery
3. carefully peel up black adhesive tape that was underneath battery. You only need to peel up top right corner near battery connection.
4. Underneath you'll see flex cable going into main body toward camera.
5. Carefully push this in or get something very thin and flat and carefully slide in under flex cable toward camera.
6. Reassemble and see if it worked.
I haven't had bluetooth in ages. Then my 2.4 WIFI dropped out like yours and I could only use 5G WIFI. FM radio also stopped working. I looked at the disassembly manual and worked out it must be that flex cable as pushing in the body below the flash fixes bluetooth/WIFI/Radio temporarily. I tried pushing flex cable in and voila FM Radio and WIFI started working. A bit more wriggling and bluetooth came back on.
However, it seems to keep coming loose again and so I'm going to have a go disassembling fully soon to see if I can make a permanent fix. Just waiting on replacement glue strips from China for underneath the screen.
It's just a poor quality connector that comes loose. It would be an easy fix if you could access the insides but because it's waterproof the only way to get in is removing screen etc.
Ok. Bad news sorry.
I opened up the phone and had a go reconnecting the flex cable. It didn't fix Bluetooth.
It did fix the 2.4g wifi but only temporarily again.
I think it must be a problem on the motherboard.
Sorry. I really thought I'd figured it out.
sad
:crying::crying:
I felt light of hope but all in vain. I knew that it has a motherboard problem that cant be fixed. Sometimes the phone gets restarted several times it self to activate 2.4 Ghz wifi. It is mother board problem. now the only way of using wifi is either purchasing 5GHz wifi router or creating 5Ghz wifi hotspot through pc or any andorid cellphone.
you should try flashing last version of 4.3 n see if BT n WiFi work as u want
Already tried. It's a hardware problem.
Actually I have another idea. I've noticed that the second Mic doesn't work very well. There's two circuit boards inside, one with Mic and other stuff on it and then the main motherboard. They have two contact points that are just touch contacts, not hard connections. There's shiny metallic squares that make contact. I wonder if they're the issue? It would explain why pressing in that place under the flash activates Bluetooth. However when I looked at them when open I couldn't figure out a way to press them together any closer. I'm going to have another go later today.
---------- Post added at 07:54 AM ---------- Previous post was at 07:51 AM ----------
In saying that, they're nowhere near the Bluetooth antenna. The Bluetooth antenna is actually under the top left corner of the phone when looking from battery side. You can access it by increasing the torx screw and prying up the waterproof cover. The cover has some glue stuff underneath to keep waterproof.
---------- Post added at 07:55 AM ---------- Previous post was at 07:54 AM ----------
Removing not increasing torx. Stupid autocorrect.
Ummm I just flashed stock 4.2 and wifi is fine. 4.3 wifi is dead. 4.4 is dead. What did they change at 4.3?
Bluetooth still not working on 4.2.
Silverdace said:
Ummm I just flashed stock 4.2 and wifi is fine. 4.3 wifi is dead. 4.4 is dead. What did they change at 4.3?
Bluetooth still not working on 4.2.
Click to expand...
Click to collapse
Oh I don't know. 2.4 now working fine after flashing 4.4 again.
It's too unpredictable. However, Bluetooth is definitely dead on mine.
Silverdace said:
Oh I don't know. 2.4 now working fine after flashing 4.4 again.
It's too unpredictable. However, Bluetooth is definitely dead on mine.
Click to expand...
Click to collapse
wifi sometimes gets connected for few hours. After that it again dies
That is work for me
Same problem with me bro.Then i will flash my phone with flashtools and then its works fine
Ok I've figured out the Bluetooth
Just like the WiFi the problem is a poor connection to the bottom board which is free to float around. It was an Idiot who designed this connection, bottom board should have been sitting on plastic shelf or spacers.
I've attached two pictures showing the pin 1 that needs to contact the conductive plate 2.
I fixed by placing small stacks of the screen adhesive under the four corners of the floating bottom board 2.
This forces it up to make a better connection with top board 1.
Obviously you need to remove screen to do this.
However, it may be possible to fix by jamming a small rigid piece of plastic in the top of micro usb slot above the jack as that's the corner of top board that needs to be forced down.
Another alternative maybe to open the corner from the back and try and force the bottom board against the top. There's two screws and some prying to do there.
Also, in addition to the adhesive spacers, I suggest placing some copper tape on the conductive square (2) to improve reliability of the connection. Similarly with the wifi squares which are on opposite side and corner of floating bottom board (2) to the bluetooth square.
My Bluetooth and wifi are now fixed. Yay.
Edit : The major issue seems to be grounding for most people. I'll mark that and you might wanna try that one first. Might as well wrap your digitizer too since it takes only a second. I'm preserving the post as it was to indicate we've all learned something from this thread. Thanks for sharing your experiences and the nice words folks. Cheers!
DIGITIZER WRAP : So fellas , my family has a lot of nexus 4s , one of them had a broken screen which we replaced. I also fixed the proximity sensor issue with it more than once so feel free to ask questions about it too. After the replacement and fixing those issues , we had another problem which is GPS taking 2 minutes to get a fix , despite the clearly visible sky and whatnot it refused to get a fix. So i set out to find the issue. The internal antenna that is connected to the back cover of the phone (behind your front camera) was clearly making contact , the antenna wire was plugged properly which i tested thoroughly with my trusty fluke on probe setting. Anyway , the problem was the Digitizer , if you can believe that.
Remember the original comes with aluminum tape wrapped around it. I always thought it was to protect it from external interference. I was half-right. It does protect it from external interference but it also protects the antennas from the digitizer's interference. I got some aluminum tape , wrapped it around the Digitizer's IC and et voila! We got a fix in 16 seconds from 14 satellites.
(This mod as it is pointed out by folks here , is pure coincidence it seems. Apparently there is the issue resistance and frequency value of the gps signal , the antenna's resistance needs to match that value or it will not get a signal. So the fact that we even got a signal , let alone a better one is like pure luck. Apparently the added resistance happened to match that value somehow. Anyway , you might wanna just skip this one. Thanks to bla_blaber for pointing that out.)
I also came up with a mod on the back plate.
What we did was , we cut 2 aluminum foils to 3-4 mm width and then starting from the gps contact zones which are located at the right corner of the back plate we started to lay them down avoiding other antennas as best as we can. We worked our way to the bottom with that foil and then connected that foil to the ends of an antenna sticker that we bought off ebay. Then we secured everything in place , and closed the device up. Another et voila , Fixes the position in 5-8 seconds on the same spot. This could theoretically work on the gsm/3g antenna as well although we haven'T tried that , we got pretty good reception where we live. I think those are also on the back plate.
Anyway folks , that's about it. I thought i'd share my experience with you guys so you don'T have to live through the same thing and even make it better. I wish i could provide some pictures but we closed the device up to test it and did not pry it open again. It gets really tense when you're prying open your only phone.
Note : Use copper foil if you can find that , it has better conductivity.
GROUNDING : On top of all those , you need to ground your antennas on the designated places around the frame. Mine came with the pads although some assemblies apparently don't have those , i recently had one. The original has sponge pads to provide contact since those parts of the board are recessed a bit. So , the ground connections need elevation to make contact. Use conductive tape (stack 3-5 together that should be enough) to elevate the points. The ground point just below the front camera is responsible for grounding the gps antenna , i'll mark that in the picture.
The other pictures are there to point out other components. The reference one is the one with the blue tape all over it.
That blue tape insulates the the chips , especially the emmc from the frame. You also need to do the same. You don't want the frame to accumulate charge , because then it won't ground.
WARNING : CUT THE EXCESS TAPE TO THE SHAPE OF THE RECESSED GROUNDING POINT. DON'T SHORT ANYTHING OUT. ESPECIALLY THE ICs.
Thanks to Eriol The Mariner for bringing the grounding issue to my attention.
Hello, I'm interesed in some pics and also with the proximity sensor issu that i'm facing to... Thank you very Mutch from a french Guy with a poor N4 (GPS ans proximity issu)
Sent from my Nexus 4 using XDA Free mobile app
jmouf said:
Hello, I'm interesed in some pics and also with the proximity sensor issu that i'm facing to... Thank you very Mutch from a french Guy with a poor N4 (GPS ans proximity issu)
Sent from my Nexus 4 using XDA Free mobile app
Click to expand...
Click to collapse
I'll make the pictures on Monday. I'm going on a short vacation now. If you want i can also help you on skype when i'm free.
Cheers!
OK thanks. No problème for the wait... I'm already waiting for 6 month ( when i changed my broken screen!!)
I use proximityscreenoff app for now.
Sent from my Nexus 4 using XDA Free mobile app
GPS
Hi!
So, i manage to fix my proximity sensor with the "black ruber" method but if you can show me how to fix the GPS that will be pretty cool !
Thanks in advence
Same problem here!
I also have exactly the same problem. Waiting for the photos of your work! Thank you for your post! :good:
I bought my Nexus 4 the day it came out. I was one of the lucky ones. Since then ive had an attachment to it. The only problem is that the gps stopped working after fixing the LCD. Hopefully we get the images soon so I could fix my GPS as well. You sir are amazing :good:
I'm also patiently awaiting a response too!
I bought my phone used and the GPS was probably always wonky, always losing its fix and taking forever to get a lock. It's really annoying when you're driving using the GPS and it loses GPS signal and then I get lost lol!
The GPS works sometimes but not very well, which makes me think there is something wrong with the GPS receiver.
I'm guessing the previous owner replaced the screen (the bezel was a bit weird around the screen, made me think it was replaced), so that would explain it... I'd rather try to fix this myself though.
Sorry boys , i had a crapton of work to do , i didn'T have time for pictures or anything. I made a picture for you now , it's not my phone but i marked what i did.
1. You have to make sure that your digitizer has this aluminum shielding or else it will cause interference.
2.Don't over-tighten the screws around the proximity sensor which are marked.
3. Below the middle cover is the proximity sensor , which i marked. Insert a paper shim there to make sure it is in position.
4. If you make the foil antenna , avoid other antennas AT ALL COSTS! It will not explode or anything but the other antennas' signals will degrade.
5. Make the antenna very narrow so it doesn't interfere.
6. Place the antennas on top of gps contact points and make sure they don'T touch each other.
7. Antenna material has to be conductive.
8. You cannot possibly brick your device with these instructions. So , if you brick it , it's totally your fault.
The picture :
http://postimg.org/image/m06morc2v/
Good Luck.
Hi !
Thanks for the help and sharing your tips.
I have a similar problem : I replaced my Nexus 4 broken screen but also the battery one week ago.
After the replacement, a GPS problem shows up: the GPS is taking a few seconds (around 20 sec) to fix for the first time but the signal is very weak (low accuracy on GPS tester app) and eventually the fix is lost after 30-40 seconds, recovered for 30-40 sec and lost again etc. When the weather is cloudy, it's even worse : the GPS can't keep the fix more than 5 seconds. It's acting like the GPS antenna has an issue.
I have tried to reopen the phone, to check if the aluminium shielding was here and it was. Just in case, I wrap another aluminium tape around the Digitier's IC with no result
The replacement screen seems to be a genuine one, everything is working fine (proximity sensor for example) except the GPS.
I haven't tried the antenna mod yet but I think that it should be working fine without it.
Does anyone has another idea to help me ?
PS : sorry if my english is wrong, I tried to do my best
Try this attachment... It will fix it
boltthrower56 said:
So fellas , my family has a lot of nexus 4s , one of them had a broken screen which we replaced. I also fixed the proximity sensor issue with it more than once so feel free to ask questions about it too. After the replacement and fixing those issues , we had another problem which is GPS taking 2 minutes to get a fix , despite the clearly visible sky and whatnot it refused to get a fix. So i set out to find the issue. The internal antenna that is connected to the back cover of the phone (behind your front camera) was clearly making contact , the antenna wire was plugged properly which i tested thoroughly with my trusty fluke on probe setting. Anyway , the problem was the Digitizer , if you can believe that.
Remember the original comes with aluminum tape wrapped around it. I always thought it was to protect it from external interference. I was half-right. It does protect it from external interference but it also protects the antennas from the digitizer's interference. I got some aluminum tape , wrapped it around the Digitizer's IC and et voila! We got a fix in 16 seconds from 14 satellites.
I also came up with a mod on the back plate.
What we did was , we cut 2 aluminum foils to 3-4 mm width and then starting from the gps contact zones which are located at the right corner of the back plate we started to lay them down avoiding other antennas as best as we can. We worked our way to the bottom with that foil and then connected that foil to the ends of an antenna sticker that we bought off ebay. Then we secured everything in place , and closed the device up. Another et voila , Fixes the position in 5-8 seconds on the same spot. This could theoretically work on the gsm/3g antenna as well although we haven'T tried that , we got pretty good reception where we live. I think those are also on the back plate.
Anyway folks , that's about it. I thought i'd share my experience with you guys so you don'T have to live through the same thing and even make it better. I wish i could provide some pictures but we closed the device up to test it and did not pry it open again. It gets really tense when you're prying open your only phone.
Note : Use copper foil if you can find that , it has better conductivity.
Click to expand...
Click to collapse
Try this attachment... It will fix it
Hi,
Thanks for your reply.
My Nexus 4 is not root so I can't change these configuration files.
My GPS was working fine before the screen (Lcd + digitizer) and battery changing, I used it every day on my road to work.
Now, it's just impossible because of these weird fix losses and I can't figure out the reason
Any news ? GPS find 0/23 satellits but isn't locking at all after replacing my n4 screen... tried everything described in the OP, can't get why the GPS doesn't work anymore after screen replacement, truly annoying!
Hey! Pictures are not showing up, could you up them up somewhere?
Could you also clarify the use of aluminum foil? Not sure I understand "make foil antenna", "make the antenna very narrow" part of your to-do? I'm having no GPS issues after screen replacement so I'm sure this will fix it just have to figure it out how
Thanks!
boltthrower56 said:
Sorry boys , i had a crapton of work to do , i didn'T have time for pictures or anything. I made a picture for you now , it's not my phone but i marked what i did.
1. You have to make sure that your digitizer has this aluminum shielding or else it will cause interference.
2.Don't over-tighten the screws around the proximity sensor which are marked.
3. Below the middle cover is the proximity sensor , which i marked. Insert a paper shim there to make sure it is in position.
4. If you make the foil antenna , avoid other antennas AT ALL COSTS! It will not explode or anything but the other antennas' signals will degrade.
5. Make the antenna very narrow so it doesn't interfere.
6. Place the antennas on top of gps contact points and make sure they don'T touch each other.
7. Antenna material has to be conductive.
8. You cannot possibly brick your device with these instructions. So , if you brick it , it's totally your fault.
The picture :
http://postimg.org/image/m06morc2v/
Good Luck.
Click to expand...
Click to collapse
Hi, I also have these issues after I replaced my display with a 45$-product from AliExpress. Mine comes with an aluminum tape. I wrapped another tape around it with no effect. Any other suggestions?
Dear all,
I spent the last two days working on the problem, trying the fix suggested by the OP.
My replacement screen came with an aluminium shield on the digitizer's IC, but I still suffer from the problem reported here.
What I tried was to put some insulating tape around the digitizer's IC's aluminium shield. The GPS signal got better but still far from how strong/fast it used to be.
The addictional foil antenna was an epic fail for me.
Thanks to boltthrower56 for his precious help.
I'm still wondering whether is possible to fix the weak gps signal in some other way.
post scriptum: I'm so disappointed with LG (the Nexus 4 wasn't really meant to be easy to open/repair) and with these chinese sellers who sell very low quality screen (again, blame on lg, for the replacement part I was asked 140€!!)
nexus 4 gps fixed
...
I got a nexus 4 with a broken screen and repaired it (only the front screen with digitizer - http://www.ebay.co.uk/itm/NEW-LCD-T...K_Replacement_Parts_Tools&hash=item5668d16af2). The screen seems to be fine, very clear picture etc, but it came without the foil around the digitizer.
I've tried adding insulating tape to both sides to a strip of kitchen aluminum foil (to prevent conductivity) and wrapped it around digitizer, gps works like crap compared to my old Xperia NeoV, signal is at minimum and it is accurate to about 60 feet at best.
Is there a difference between kitchen aluminum foil and that tape? I'm not sure what else it could be, contacts on back case seems to be ok and pressing on it doesn't change the signal. Maybe it is the new front panel on the screen that is interfering (though I'm not sure if that matters, since antenna is on the back)?
Hi, I'm having a similar problem with yours.
The difference is, I've never replaced my screen, so I'm very certain that I have the Aluminium Foil in the Digitizer (It's the one that you marked "Al. Shield" in the picture, right?)
I'm quite busy with exam right now so I can't tinker with my phone.
I remember that I dropped my phone hard few days or weeks ago, that could probably the cause
Will removing the back cover and checking the conductivity help? I can never get a good GPS signal anymore, it's always inaccurate by like 50-100 ft and it loses signal frequently.
And also, I could not understand your "foil antenna" mod(?), in your picture there was no foil at all. Should I put a foil between the GPS contact or what?
What did you replace then, do you still have a broken screen?
Maybe it's the back cover. I've soldered a bit my contacts but that didn't help at all.
Sent from my Nexus 4 using XDA Free mobile app
Hi
I have the c5502 with the bluetooth/wifi problem , the repair service told me they can fix it with bridges or smth and the problem will appear again,
First i dont believe them that much i just feel that they wanted me to pay for a new PCB
Question: Is this problem really fixable or should i buy a new one
Someone told me he will reweld the wifi and it is fixed
Note: The problem was temporarly fixed when i press hard on the back next to mic 2, but no longer works
Judging by your description, it might be that the WiFi/BT chip isn't attached well - some of the balls in the BGA (Ball Grid Array, look it up) have cracks that prevent proper contact.
If this is indeed the case, it can be fixed by reflowing or just directed heating of the chip area to the melting temperature of the soldering alloy.
However, this might not be the problem - and if it isn't, there might be a host of reasons for it.
You need to correlate the location of the WiFi/BT chip and the pressure you're applying.
Jack_R1 said:
Judging by your description, it might be that the WiFi/BT chip isn't attached well - some of the balls in the BGA (Ball Grid Array, look it up) have cracks that prevent proper contact.
If this is indeed the case, it can be fixed by reflowing or just directed heating of the chip area to the melting temperature of the soldering alloy.
However, this might not be the problem - and if it isn't, there might be a host of reasons for it.
You need to correlate the location of the WiFi/BT chip and the pressure you're applying.
Click to expand...
Click to collapse
wow thank you, i looke it up it should be simple
could you tell me what is the bridging he talked about ?
He might be suspecting something else.
synos_x said:
Hi
I have the c5502 with the bluetooth/wifi problem , the repair service told me they can fix it with bridges or smth and the problem will appear again,
First i dont believe them that much i just feel that they wanted me to pay for a new PCB
Question: Is this problem really fixable or should i buy a new one
Someone told me he will reweld the wifi and it is fixed
Note: The problem was temporarly fixed when i press hard on the back next to mic 2, but no longer works
Click to expand...
Click to collapse
I have fixed my WiFi but bluetooth is still dead.
The WiFi problem is actually a poor connection between two boards inside the phone. There's two boards that need to make contact but because they aren't hard-wired together they rely on a touch contact. There's a shiny foil square on top board (main pcb) that has to contact conductive square on lower board. The shiny foil square looks like it gets compressed over time which is why the wifi only fails on some phones after a while. Some phones will be fine but I think it's just poor engineering to rely on a soft touch contact!!
When you push in the back against the mic you are pushing the boards together to make contact.
I fixed by placing some of the screen adhesive (which I had plenty of after removing screen) underneath the spacer pad that is under the bottom board. This forces the boards together and keeps the WiFi going.
However, I thought this would fix bluetooth but no such luck. Perhaps there's another connection that's not right somewhere?
so i sent it to a repair center sony told me the board is fried, i dont know what this means , everything works except for wifi bluetooth, they are both working until now, i think they heated the wifi part on the board
Silverdace said:
I have fixed my WiFi but bluetooth is still dead.
The WiFi problem is actually a poor connection between two boards inside the phone. There's two boards that need to make contact but because they aren't hard-wired together they rely on a touch contact. There's a shiny foil square on top board (main pcb) that has to contact conductive square on lower board. The shiny foil square looks like it gets compressed over time which is why the wifi only fails on some phones after a while. Some phones will be fine but I think it's just poor engineering to rely on a soft touch contact!!
When you push in the back against the mic you are pushing the boards together to make contact.
I fixed by placing some of the screen adhesive (which I had plenty of after removing screen) underneath the spacer pad that is under the bottom board. This forces the boards together and keeps the WiFi going.
However, I thought this would fix bluetooth but no such luck. Perhaps there's another connection that's not right somewhere?
Click to expand...
Click to collapse
Hi,
Can you please let me know that how did you open that phone? did you opened it by your self?
Is it possible to open from back side only?
Do you have pictures for wifi solution which you described above?
nikunjnandaniya said:
Hi,
Can you please let me know that how did you open that phone? did you opened it by your self?
Is it possible to open from back side only?
Do you have pictures for wifi solution which you described above?
Click to expand...
Click to collapse
Hi sorry but don't have phone any more. Don't think I have pictures any more either.
You cannot open from back side only. You have to take off screen. Look on youtube to see how it's done.
Silverdace said:
Hi sorry but don't have phone any more. Don't think I have pictures any more either.
You cannot open from back side only. You have to take off screen. Look on youtube to see how it's done.
Click to expand...
Click to collapse
Hi,
Thanks for your reply. Currently i had press with pressure back side and it's working for me.
But let say if i open phone as shown in youtube then do i need anything extra to assemble my phone again?
Thanks that you have write your wifi issue here and it will help others.
nikunjnandaniya said:
Hi,
Thanks for your reply. Currently i had press with pressure back side and it's working for me.
But let say if i open phone as shown in youtube then do i need anything extra to assemble my phone again?
Thanks that you have write your wifi issue here and it will help others.
Click to expand...
Click to collapse
Yes, you'll need the screen adhesive stuff. Can find on eBay or Aliexpress or Witrigs etc.
synos_x said:
Hi
I have the c5502 with the bluetooth/wifi problem , the repair service told me they can fix it with bridges or smth and the problem will appear again,
First i dont believe them that much i just feel that they wanted me to pay for a new PCB
Question: Is this problem really fixable or should i buy a new one
Someone told me he will reweld the wifi and it is fixed
Note: The problem was temporarly fixed when i press hard on the back next to mic 2, but no longer works
Click to expand...
Click to collapse
old thread but just in case some zr user are still searching for an answer
there is a chip on main pcb which controls wifi and bluetooth, but sony didn't soldered it correctly and thus it needs pressure to make connections with pcb.
Only permanent solution is to apply heat on that chip ( after disassembling pcb from phone ) and then it will work for forever.
My phone's ( zr ) wifi bluetooth and nfc wasn't working, so i dissembled it and took the pcb to a laptop repair shop and told them to apply heat on that chip to solder it correctly ( as i don't have that instrument which is used to apply heat on small point ), and after that it is working without any issue. :highfive:
Note:- be carefull while removing screen as it is very fragile and will brake easily if not handled correctly ( yes i broke my screen and using an after market now which costed me Rs1800 ( for full folder ), i was lucky to still find its screen .
Saw Sooper diff DDI dijauhkan I'd do so