Hello xda I hope you can help me out.
I have just replaced my screen with a screen bezel off ebay. I managed to bend the plug on the top end of the white wire that runs up the Left hand side of the phone while trying to disconect it with a pair of plyers because its all I had.
I have put the phone back together and it seems to be working fine. I have wifi and microfhone works.
I am just wondering what that wire is for and if I need to get another one on order?
BTW the wire is not connected but the phone works fine as far as i can tell. I still have no signal, as it stuck on emergancy calls and has been for weeks due to no vodafone tower working in my town at the moment.
blackjok3r said:
BTW the wire is not connected but the phone works fine as far as i can tell. I still have no signal, as it stuck on emergancy calls and has been for weeks due to no vodafone tower working in my town at the moment.
Click to expand...
Click to collapse
Any pics?
EDIT: dude this wire is the antena cable thats why u have no signal connect it! ))
Sent from my GT-I9100 using xda premium
I already had no signal on vodafone. I had emergancy calls full bars before I pulled the phone apart. The plug on it is bent, simply wont fit back onto the board at all, tried for ages.
Anyone knwo where I can order a replacment?
blackjok3r said:
I already had no signal on vodafone. I had emergancy calls full bars before I pulled the phone apart. The plug on it is bent, simply wont fit back onto the board at all, tried for ages.
Anyone knwo where I can order a replacment?
Click to expand...
Click to collapse
ebay for new part... or take your time and pick the closed contact open it needs to be connect it not there for show..
Hello
I have read that this is the antenna wire and it helps reception maybe even connection at all
I had the same problem with my old HTC ,the wire and the connectors in the galaxy s2 looks the same only its white
I bent the connectors and it couldn't fit anymore but i managed to bent them again with a needle and pliers so the wire could fit again, just take your time with it.
Related
I noticed a weird connector at the back of the device, I dont have a way to picture it at the moment but I found it on the internet.
Its under the cover in the red circle I draw,
Do any of you know what its good for?
eranyanay said:
I noticed a weird connector at the back of the device, I dont have a way to picture it at the moment but I found it on the internet.
Its under the cover in the red circle I draw,
Do any of you know what its good for?
Click to expand...
Click to collapse
I think it is for attaching a stylus.You just loop the thread through it and close the cover.
It's meant for a wristband. You can buy the accessory, loop it through that hole, and then close the back cover (so it never falls off).
Are you sure about it...?
I think you're wrong,
the wristband/small things you put on your phone like small dolls is the yellow square
this one is something different.
It its a connector for an external gsm antenna. However be warned, do not plug any thing in to it as others have reported this will disable the internal antenna and you will not get a signal afterwards without a visit to a service centre or some soldering.
http://forum.xda-developers.com/showthread.php?t=1273292&highlight=antenna
Sent from my GT-I9100 using Tapatalk
I've seen that type of connector on other phone's in the past. I always thought it was for an external antenna. I'm not sure though.
Edit: mrm1 just beat me to it ^^^
That was my first impression, after seeing a similar connection for the wifi antenna in laptop's hardware..
Thanks, and of course, Im not planning to connect anything to it anyway
Hi,
I recently replaced my usb flex cable, and my signal has been very weak ever since. I have tried loosening the screws and removing the small wire (aerial) and putting it back on, but my signal is still very very poor. Has anyone else had this problem after disassembly?
It may not be relevant but i'll mention it anyway. The screwdriver I used had a slight magnetic charge, just enough to pick up the screws. Could this have damaged something?
I'm on O2 UK and have tried other O2 aims, but to no avail. I have also tried my sim in other phones and signal improves greatly. I noticed it instantly after reassembling the phone so whatever has changed, happened during the course of replacing the usb flex cable.
Any help would be greatly appreciated, thanks
Does anyone have any ideas on what could be causing the signal to be so consistently weak? Would it be worth replacing the wire antenna?
I have taken this apart and put it back together countless times, trying to see if there was a loose connection etc, but have had no luck so far. I even put a bit of folded tinfoil between the usb flex cable and the contact under the battery to try and help the connection. I've completely run out of ideas.
Rotoq said:
Does anyone have any ideas on what could be causing the signal to be so consistently weak? Would it be worth replacing the wire antenna?
Click to expand...
Click to collapse
I think you just disrupt the antenna. Sending it to a customer service repairs should be a good choice
Sent from my LT18i using xda premium
As I bought it from Ebay IE, I have no warranty, so will have to pay to have it repaired. i was hoping to have a go myself, however there doesn't seem to be an awful lot of information out there regarding this problem. I have found a replacement antenna for £3 so I might try that, however I'm not sure that is the problem as the antenna looks in good condition and was only disconnected briefly.
Edit: Oh and thanks for the reply
send it to service center...
rocky23 said:
send it to service center...
Click to expand...
Click to collapse
I'll probably have to take it to my local electronic repair shop as it is not under warranty. i was really hoping to avoid this as I'm not sure what they will charge :-/
Rotoq said:
I'll probably have to take it to my local electronic repair shop as it is not under warranty. i was really hoping to avoid this as I'm not sure what they will charge :-/
Click to expand...
Click to collapse
well thts ok too jus watch out as wat hes doing?good luck m8 an do pm or post as how ur phone bhaves an costed?for repair
I'm hopefully going to leave it to be repaired this weekend but if anyone has any ideas please feel free to post them here.
well there are apps jus c in market"signal boost"u get a whole lot of apps jus giv it a try....
rocky23 said:
well there are apps jus c in market"signal boost"u get a whole lot of apps jus giv it a try....
Click to expand...
Click to collapse
Thanks, but it wasn't an app that caused the change, so I am reluctant to use an app to try and work around a proper fix.
Having read awful reviews for my local repair shop, I have just purchased a replacement antenna to try and repair it myself. It cost £3.00 so I'll fit it as soon as it arrives. If that doesn't work I will HAVE to take it to be repaired :-(
Rotoq said:
Thanks, but it wasn't an app that caused the change, so I am reluctant to use an app to try and work around a proper fix.
Having read awful reviews for my local repair shop, I have just purchased a replacement antenna to try and repair it myself. It cost £3.00 so I'll fit it as soon as it arrives. If that doesn't work I will HAVE to take it to be repaired :-(
Click to expand...
Click to collapse
Same problem here... I've just replaced my usb flex and after that i wasn't able to connect to my provider h3g 3 ita in wcdma mode...but just have roaming with other gsm provider...
I've also a sound problem from loudspeaker otr better i don'have anymore sound from my s2.
I'm reading that antenna is in the same part of luodspeaker so i hope to have break my anttenna part...
I've just oredered a new loudspeaker part and mybe i've to ordere also wire antenna...
After that i really don't know what can i think.....
Regards
cescof said:
Same problem here... I've just replaced my usb flex and after that i wasn't able to connect to my provider h3g 3 ita in wcdma mode...but just have roaming with other gsm provider...
I've also a sound problem from loudspeaker otr better i don'have anymore sound from my s2.
I'm reading that antenna is in the same part of luodspeaker so i hope to have break my anttenna part...
I've just oredered a new loudspeaker part and mybe i've to ordere also wire antenna...
After that i really don't know what can i think.....
Regards
Click to expand...
Click to collapse
I had same problem as you.
After changing USB flex PCB my network signal just vanished.
Fortunately I found solution for my problem.
Problem was in slightly different PCBs and after unsoldering one SMD element my phone is back with strong signal.
Anyway here are the pictures:
imageshack.us/photo/my-images/33/pcbn.jpg
Original PCB is upper one
imageshack.us/photo/my-images/204/pcb2m.jpg
There is difference
imageshack.us/photo/my-images/831/pcb3h.jpg
Thank you!
This worked like a charm!!! Thank you so much for your post! Save me so much money.....
LittleCannon said:
I had same problem as you.
After changing USB flex PCB my network signal just vanished.
Fortunately I found solution for my problem.
Problem was in slightly different PCBs and after unsoldering one SMD element my phone is back with strong signal.
Anyway here are the pictures:
imageshack.us/photo/my-images/33/pcbn.jpg
Original PCB is upper one
imageshack.us/photo/my-images/204/pcb2m.jpg
There is difference
imageshack.us/photo/my-images/831/pcb3h.jpg
Click to expand...
Click to collapse
I have the same problem...
How did you remove the SMD?
Magnetic screwdriver
Just FYI, magnetic screwdrivers do not cause any damage to electronic circuits and are generally safe to use.
tixxix said:
I have the same problem...
How did you remove the SMD?
Click to expand...
Click to collapse
Soldering iron with really pointy tip
Top man.......
Usb port broke so replaced it and had a very weak signal. after hours of checking everything, flashing roms, taking phone apart, 3 different usb boards and a massive headache. I followed your guide and now have strong signal again. Was nearlly at a point where phone was going to be scrapped. Thankyou
LittleCannon said:
I had same problem as you.
After changing USB flex PCB my network signal just vanished.
Fortunately I found solution for my problem.
Problem was in slightly different PCBs and after unsoldering one SMD element my phone is back with strong signal.
Anyway here are the pictures:
imageshack.us/photo/my-images/33/pcbn.jpg
Original PCB is upper one
imageshack.us/photo/my-images/204/pcb2m.jpg
There is difference
imageshack.us/photo/my-images/831/pcb3h.jpg
Click to expand...
Click to collapse
LittleCannon said:
I had same problem as you.
After changing USB flex PCB my network signal just vanished.
Fortunately I found solution for my problem.
Problem was in slightly different PCBs and after unsoldering one SMD element my phone is back with strong signal.
Anyway here are the pictures:
imageshack.us/photo/my-images/33/pcbn.jpg
Original PCB is upper one
imageshack.us/photo/my-images/204/pcb2m.jpg
There is difference
imageshack.us/photo/my-images/831/pcb3h.jpg
Click to expand...
Click to collapse
You are a life saver! I was about to trash my S2. I got it used with usb and sound problems for about 130 euro. Swapped parts but had crappy signal. The signal was bad before to which I also bought new antenna. Network signal never worked properly since acquiring the phone 2 weeks ago. Swapping modems never helped.
I still have the old USB board and it looks like exactly like the one I replaced. Thinking of the same thing you just did. Now my question to you, why didn't you remove the other SMD to make the boards match? I might try removing both on the old to compare signal levels.
Your info should be stickied!
Thanks again!
Tried that Trick but now I dont have any more signal at all...nowhere!
I have a second hand Galaxy S2 which was unlocked to all networks and randomly the phone would connect to driving mode. I used GoLauncher EX to delete Voice control but then it started showing that it was charging constantly. After a lot of research I found the problem was in the charging port.
I ordered a new charging port online and I've put it in instead of the old one and now the charging problem is gone, but now my phone gets no service on a Three UK sim, I'm quite sure it wasn't on Three UK to begin with.
Is it possible that changing the charging port might have locked the phone to the original carrier again?
and is there anyway to unlock it(without root) or get it working again a different way?
(This is my first post. Forgive me if I've made any mistakes. )
Got quite a few views. Does this mean no one has any idea on what it could be?
Take a look at the antenna wire sometime you touched it and it's not connected properly
Yeah I have seen a lot of people lose signal who replace that port. I'm pretty sure it has something to do with the antenna. Make sure you have knocked it by mistake
Sent from my GT-I9100 using xda app-developers app
I experienced the same problem with my Samsung S2. I had destroyed the charging port by being careless when charging it which meant my phone would not charge at all; although if I was lucky I would get about 10% charge every day.
To resolve the problem, I bought a cheap charging port flex cable off ebay for about £4.00 which I thought was a bargin. After taking the phone apart (with help from a YouTube video) I replaced the port, turned the phone on and it charged perfectly. Then all of a sudden I lost all signal. I moved around the house, hoping to get the slightest bit of signal but no, nothing. I did a lot of research online as to why this has happened and everyone said it was to do with the antenna cable that runs along the left hand side of the phone so my immediate thought was to buy a new one. I did a factory reset to see if that helped but it did not. As I was desperate, the following day I went into town to see if I could find a shop that sold an antenna wire. I went in shop after shop but nowhere sold what I was looking for. I went into a shop and described my problem to the man behind the counter, and he knew exactly what was wrong. On the flex cable there is "REV" followed by a number, and he told me that if the replacement number is not the same as the original then the phone will have no service.
In the photos you will see my original cable that was "REV2.3" and my replacement cable that was "REV2.2".
Long story short... when replacing the charging port make sure the replacement flex cable has the same REV number as the original otherwise you will have no service. Your problem is not related to the antenna wire.
I hope this helps!
solution posted here
http://forum.xda-developers.com/galaxy-s2/help/weak-signal-reception-changing-micro-t1950114/page4
I know wireless charging is possible via the Touchstone method if I'm not mistaken, but if I recall, you're stuck with using that and only that. Is there a way to hack in wireless charging on the Note 2 with any charging pad such as that Fatboy pillow or the Nokia pads or anything with the Qi standard?
Also, can someone take a picture of the location of the wireless pins on the phone. I hear they're covered, and I just would like to see the back of the device.
Thanks in advance!
I am wondering the same thing. This is the first video I have seen which at least means we dont have to replace the usb charging board. You can see where he solders the leads. He says its a Qi back in the comments.
https://www.youtube.com/watch?v=rDSyjl_2CXo&feature=youtube_gdata_player
Sent from my rooted SGH-1605
No, you wouldn't be stuck with charging only through the touchstone. I did this mod on my galaxy nexus and didn't have that limitation. I love the touchstone and I'm looking to find confirmation that someone has done this mod on the Verizon Note2...I see info about all the other versions but not this one. I'm assuming it's going to be similar to the Sprint version mod but don't know for sure. Please, if anyone has info on this mod for the Verizon Note2, respond.
Sent from my SCH-I605 using Tapatalk 2
Well I'm intrigued. I own the Verizon note 2, 2 HP touchpads, and 4 touchstone chargers. I love being able to drop the touchpad into the wireless charger and letting it go. To have this functionality with the note 2 would be to cool. I also have a fair amount of electronics knowledge. I'm pretty certain that once retrofitted, a device set up for wireless charging would work with any wireless charger as the principals of charging are all the same as I understand it.
One question that comes to mind.. is there really any difference in the make up of the note 2 circuit board between providers other than maybe the radio circuitry? If not then there isn't any reason why the mod shown in the video shouldn't work. Over the next couple of days I'll check into this and report my findings.
Anyone thinking about getting this?
http://www.ebay.com/itm/QI-Standard...53731?pt=Battery_Chargers&hash=item2ec48cbe63
BennyJr said:
Anyone thinking about getting this?
http://www.ebay.com/itm/QI-Standard...53731?pt=Battery_Chargers&hash=item2ec48cbe63
Click to expand...
Click to collapse
That would be nice but we don't have contacts to line that up with... We technically do have the hardware their but I have heard a few horror stories about people not being careful and screwing up their phone trying to do the mod. I had wireless charging on my S3 but I think I'm gonna hold out on the Note 2 this time around...
Don't open case or you lose LTE/GPS
shojus said:
That would be nice but we don't have contacts to line that up with... We technically do have the hardware their but I have heard a few horror stories about people not being careful and screwing up their phone trying to do the mod. I had wireless charging on my S3 but I think I'm gonna hold out on the Note 2 this time around...
Click to expand...
Click to collapse
So I ended up buying the Qi charger on ebay along with a new chassis back (it was for the GSM variant) with the intentions of swapping backs and then having the holes to put the qi charger through. After MUCH hacking of the back, it worked, however I lost GPS, and 4G LTE. The chassis is just too different to work correctly.
I then put the Verizon chassis back, back on and used some copper tape to get the contacts to touch without the holes. Everything worked properly, but still no GPS or LTE.
I took it apart thinking I broke maybe one of the pins that use the chassis back as the antenna -still nothing. So moral of the story, don't take the chassis back off or the phone will be half of one. Its been about 4 days and going to various places in SF to see if LTE would come back on, but no dice.
Going to return this phone since its now broke (still 30 days) and next I will try and use the copper tape to put behind the actual battery contacts and NOT open the case at all.
Really wish VZ didn't take away this capability, as I already invested in the wireless charging stuff for my HTC Thunderbolt. Have a S3 and that works perfectly fine since the holes/pins are there.
rcnacura said:
So I ended up buying the Qi charger on ebay along with a new chassis back (it was for the GSM variant) with the intentions of swapping backs and then having the holes to put the qi charger through. After MUCH hacking of the back, it worked, however I lost GPS, and 4G LTE. The chassis is just too different to work correctly.
I then put the Verizon chassis back, back on and used some copper tape to get the contacts to touch without the holes. Everything worked properly, but still no GPS or LTE.
I took it apart thinking I broke maybe one of the pins that use the chassis back as the antenna -still nothing. So moral of the story, don't take the chassis back off or the phone will be half of one. Its been about 4 days and going to various places in SF to see if LTE would come back on, but no dice.
Going to return this phone since its now broke (still 30 days) and next I will try and use the copper tape to put behind the actual battery contacts and NOT open the case at all.
Really wish VZ didn't take away this capability, as I already invested in the wireless charging stuff for my HTC Thunderbolt. Have a S3 and that works perfectly fine since the holes/pins are there.
Click to expand...
Click to collapse
You must have damaged something. You can take the back off without destroying anything - in fact you have to when you first get the phone since the battery doesn't come preinstalled.
Edit: never mind, didn't misread your post. But people have removed the chassis too - you still must have damaged it somehow.
http://forum.xda-developers.com/showthread.php?p=35988384
FTW
sent from my Super Famicom
flaring afro said:
You must have damaged something. You can take the back off without destroying anything - in fact you have to when you first get the phone since the battery doesn't come preinstalled.
Edit: never mind, didn't misread your post. But people have removed the chassis too - you still must have damaged it somehow.
Click to expand...
Click to collapse
Ya I must have, everything looked fine, but ya, something happened and I couldn't get it to get back to 4G. Went back to Verizon today and got a new one. I want to try and see if I can just hook directly to the battery terminals... need to get my ohm meter out.
I did it to mine took about a hour be careful and gentle minimum force is needed follow the YouTube video and use the proper tools
Sent from my SCH-I605 using xda app-developers app
rcnacura said:
So I ended up buying the Qi charger on ebay along with a new chassis back (it was for the GSM variant) with the intentions of swapping backs and then having the holes to put the qi charger through. After MUCH hacking of the back, it worked, however I lost GPS, and 4G LTE. The chassis is just too different to work correctly.
I then put the Verizon chassis back, back on and used some copper tape to get the contacts to touch without the holes. Everything worked properly, but still no GPS or LTE.
I took it apart thinking I broke maybe one of the pins that use the chassis back as the antenna -still nothing. So moral of the story, don't take the chassis back off or the phone will be half of one. Its been about 4 days and going to various places in SF to see if LTE would come back on, but no dice.
Going to return this phone since its now broke (still 30 days) and next I will try and use the copper tape to put behind the actual battery contacts and NOT open the case at all.
Really wish VZ didn't take away this capability, as I already invested in the wireless charging stuff for my HTC Thunderbolt. Have a S3 and that works perfectly fine since the holes/pins are there.
Click to expand...
Click to collapse
wow, you break the phone and then go and exchange it.
And they say personal responsibility is dead in this country...
Hi there.
I have a G5 as my backup phone. Recently, I've replaced the fingerprint scanner (it stopped working as a button, no cleaning would help, so I've bought new part online and replaced it), and after that I have no signal (-1dbm 99asu). Not even an alarm call is possible.
From my research, the antenna module is the bottom slice of the phone, you attach the battery to (one with mic, USB-C and bottom speaker)? I have both original bottom part and a Cam+, no signal on either of them. Where else should I look for any damage, that would lead to my problem - no signal at all?
I have a similar problem. The signal is very low everywhere, I tried to clean all the contacts between the bottom part and the phone, and nothing changed.
Me too i have a problem with the signal since display change. How can i get it fix. The phone has very low signal and it has network only on 3g on LTE it hasnt any network and 2g signal doesnt have.
Изпратено от моят LG-H850 с помощта на Tapatalk
Well, the pcb or mainboard has a small flex type antena on the back of it, it's black and has some lettering on it and it connects using coaxial type push connectors, also the phone connects to the aluminum case via some exposed pins on the mainboard, the case acts as an antenna also, if you need pictures I can take some tomorrow, I work in a cellphone shop and I fix an LG g5 almost every day, we have some main boards laying around, you most likely bent one of the pins that connects to the case
nah i got the same problem here after disassemble the phone. I already clean all things that contacted with the backdoor or with mainboard but the problem still there. Only got 0-1 bar of 4g even it near the tower until it change to 3g with the same condition. but the 2g signal is always full bar.
Jc_master said:
Well, the pcb or mainboard has a small flex type antena on the back of it, it's black and has some lettering on it and it connects using coaxial type push connectors, also the phone connects to the aluminum case via some exposed pins on the mainboard, the case acts as an antenna also, if you need pictures I can take some tomorrow, I work in a cellphone shop and I fix an LG g5 almost every day, we have some main boards laying around, you most likely bent one of the pins that connects to the case
Click to expand...
Click to collapse
so is it located on the mainboard or part of screen? could you take some picture of it :crying:
Jc_master said:
Well, the pcb or mainboard has a small flex type antena on the back of it, it's black and has some lettering on it and it connects using coaxial type push connectors, also the phone connects to the aluminum case via some exposed pins on the mainboard, the case acts as an antenna also, if you need pictures I can take some tomorrow, I work in a cellphone shop and I fix an LG g5 almost every day, we have some main boards laying around, you most likely bent one of the pins that connects to the case
Click to expand...
Click to collapse
maybe post foto where is gsm ahtenna?