I am hoping to salvage my wonderful nexus 5. When replacing the screen I partial pulled the 3g antenna connector off of the main board. Now I randomly have service. Sometimes pushing on the back of the phone works to reestablish service, normally it does not. I was curious If I could get a custom antenna wire that would go from what i believe is the antenna test point to the normal connector on the bottom. If you think this would work any suggestions on where I could get that type of connector made
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Anyone have a broken XT720 they are willing to part out or maybe already started to part out?
I replaced my digitizer glass today (boy was getting the glass removed a pain in the ass!) and when I was reassembling the phone the white antenna cable end broke off that pushes down onto the mainboard.
You can see the cable at the 5m mark in this disassembly video (not mine):
http://www.youtube.com/watch?v=_WCVqEMZbU0&t=5m
(The video is good but unfortunately stops before taking out the digitizer glass)
I initially thought this may be for wifi antenna (same antenna cable found in laptops on wifi card) but I still have good wifi signal, but I am unable to register on network so it may be going to cell radio and not wifi radio.
I may try and make one out of an old laptop cable, but I would have to cut it/solder it to get the right length (and thats if the connector is the same), so I am hoping someone is willing to part with one!
Thanks!
Look around
Hello! So I have an Nexus 5 D820 and after changing my battery in some areas of my city or my country I don't have any reception. While writing this I popped the battery cover and applied a little pressure with electrical tape to the black wire which I believe is for the reception but I can't tell if I fixed it because most of the time I have reception. So what should I change to fix my reception - only the little black wire or the hole bottom PCB with the plastic cover ? Thanks in advance!
Since it's working at some places it's probably not your device's fault that it can't connect at some other places. Nevertheless:
To change your battery you must have removed the motherboard cover to remove the battery cable. The GSM antenna is on the motherboard cover and is connected by simply touching 2 small conductive pieces on the motherboard (with the phone facing down and the motherboard cover removed, these should be at the top right area of the motherboard). There are also 2 wires (along with a big wire strip) that connect the 2 bottom edges of the motherboard to an extra little board below the battery (where the USB port and other components are). Those are antenna extensions, one of these is probably the black wire you are talking about. The right one is for 3G and the left one is for 4G (with the phone facing down), don't remember the colors. If you have a problem with data connection and not normal cell reception, check those 2 wires. The 3G and 4G antennas are on the black plastic cover of that extra little board and connect to it with a similar way the GSM antenna connects to the motherboard (each one has 2 gold flexible metal pins). You didn't need to remove that plastic cover to replace the battery, but if you did, remove it again and check the connector and those gold pins.
Whatever you do: NEVER DO ::ANYTHING:: WITHOUT DISCONNECTING THE BATTERY (xp talking).
Shutdown the device normally, remove back cover, remove motherboard cover, disconnect the battery cable, and THEN do whatever you have to do.
The screwdriver is usually metal and can short things. You really don't want to short something on the motherboard with the battery connected.
Thanks! I started losing signal after I replaced my battery(before that no problems whatsoever), but couple of days ago I opened the phone again and applied a little pressure to the both wires and I hope it's fixed. Also today I'm going to the place where I'm losing signal and I will find out.
As per the title I am getting a much diminished signal after changing the charging port to a new one.
The worst is when I grip it in my hand which would naturally be at the bottom - where the charging port is.
I only get LTE when I'm outdoors and indoors it's either H+ but usually H, E, or even NO SIGNAL.
I can't figure out what could be the problem. There are 2 antenna inside the unit that connect to the charging port but these are bluetooth and wifi. It doesn't appear to be an antenna for the network signal. Or is the frame part of the network antenna? I see some electronics in the frame when I dismantled and I don't know what that is for or how it connects to the mobo. I'm thinking if the frame works as an antenna maybe it's not connecting to the mobo properly.
Just to clarify I was having no signal problems before I dismantled the unit and in fact it was working exactly the same as my previous phone.
I actually don't know if the charging port part has anything to do with the signal antenna.
Any comments appreciated.
Hello,
I'm experiencing the same problems with my SM-G920F. After replacing the charging port the bottom mic isn't working anymore. I'm forced to call on speakerphone to get the sound to the other end of the line. The repair centre who fixed the phone said it could be because of a little off-point alignment when soldering the usb pin on the pcb. They also said that they experienced the same problems on different repairs for the S6.
Any thoughts?
Makzinations said:
Hello,
I'm experiencing the same problems with my SM-G920F. After replacing the charging port the bottom mic isn't working anymore. I'm forced to call on speakerphone to get the sound to the other end of the line. The repair centre who fixed the phone said it could be because of a little off-point alignment when soldering the usb pin on the pcb. They also said that they experienced the same problems on different repairs for the S6.
Any thoughts?
Click to expand...
Click to collapse
Please start you own thread on your issue. It has nothing to do with this thread. Mod please remove this post.
I think I know what happened. When I took off the back cover plate it was glued to what looked like a Printed Circuit Board antenna and it was yanked by myself. Anyone know where I can get these type of things to buy and repair ?
I have changed my defect display and my right coax connector is broken .
What is the function of this connector / cable
There is a second connector could I use this connector
If you broke the PCB Connector, you need to get to a proper repair shop and have it replaced, if it had a cable and you broke that you need to get it and have them make you a new one. But since it's a phone I would guess it's the PCB antenna. Also those are the antennas for the GSM combo module, WiFI/Bluetooth combo, so you will either have reduced or no signal from your operator or you won't be able to connect to WiFi/Bluetooth reliably or at all.
So, I broke my screen and did the repair myself. Everything went well, except during reassembly I discovered that when I popped the antenna wire off the socket, I pulled the socket off the motherboard. I was able to solve this issue by soldering the bare antenna wire end to what remained of the socket...which was s tiny strip of copper where the socket used to be. After getting the wire to stick, I finished reassembly and everything work.... almost.
I discovered my auto-brightness is not working, along with screen shutoff when I bring the phone to my ear. I'm guessing I didn't plug a ribbon in correctly or fully. Can anyone give me any more detail on this sensor and how it connects to the motherboard? I can go back in, but I don't want to do it until I'm clear as to what I'm doing.
The phone is still usable though.... oh, one additional note. The screens available for around $50 are not of the same build quality as the OEM screen. They scratch allot easier. Probably not gorrilla glass III.
tonyzoc said:
I discovered my auto-brightness is not working, along with screen shutoff when I bring the phone to my ear. I'm guessing I didn't plug a ribbon in correctly or fully. Can anyone give me any more detail on this sensor and how it connects to the motherboard? I can go back in, but I don't want to do it until I'm clear as to what I'm doing.
Click to expand...
Click to collapse
You might have disconnected or forgotten to reconnect the proximity sensor to the motherboard. Provided your replacement unit even comes with one. If not, you may need to do some additional hacking.
EDIT: looks something like this
robogo1982 said:
You might have disconnected or forgotten to reconnect the proximity sensor to the motherboard. Provided your replacement unit even comes with one. If not, you may need to do some additional hacking.
EDIT: looks something like this
Click to expand...
Click to collapse
Thanks!. I know that part and I might have not plugged it in fully. Also, there is a metal plate that sits over it, and I discovered I forgot to put that plate on after I had it all put back together. I'm going to go back in and check and replace that plate. I'm a little hesitant to go back in because during the screen replacement I broke the wire antenna socket off the motherboard when I popped the connector. I literally had to solder the antenna wire to the tiny copper strip left in the antenna socket hole. It worked as I have good wifi and mobile data, but it's extremely fragile and I don't think I'll get a 2nd chance if I break that wire off.