Redmi Note 7 WiFi and Volume Problem - Xiaomi Redmi Note 7 Questions & Answers

While replacing the battery, everything seems to work except the WI-FI. Its connects to the wifi-network, but no data seems to be transmitted. I suspect the cover has not been sealed properly and does not properly make contact with the wifi-antenna. Does anyone know where the wifi-antenna is and where it makes contact with the rest of the phone? Also, my volume/power ribbon is constantly turning off and on after only one week I installed it. Is anyone else having that problem? Thank you for the help.

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Bluetooth and Wifi won't work!!!!!

Hello;
It's been like a month that I have this problem, my bluetooth won't connect and neither is my wifi. The wifi sometimes connect with like one bar, the signal strength is awful and you have to be like 1 feet away of the router because if you move farther it disappears. I have tried to boost this in the settings by better performance but it doesn't make a difference.
In the other hand the bluetooth is not working at all, I tried to connect to my laptop and is like there's no bluetooth device in the area, tried it with my headset and get the same thing.
It's really frustrating cause this two features are very important for my daily use of this phone, so if someone now what to do please let me now.
Appreciate it!
Same here!
I have the exact same problem and apparently by the lack of posts anywhere on the internet nobody has an answer.
im having EXACTLY the same issue. im gonna open it up and see whats up.
The answer might lie within?
Try this link? What you're looking for might be somewhere in amongst these threads? http://forum.xda-developers.com/search.php?searchid=48353718&pp=25:confused:
can you repost that link? its saying search is down..
edit: working now.
???
I get a "Sorry - no matches. Please try some different terms." message.
???
nothing worth noting on the link. im gonna send mine back to htc..
I'm hoping someone will get to the bottom of this as i miss my wifi.
All was working fine on my phone until I had to take my phone apart 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 and push the led plastic cover back into place, i didn't touch anything else. I put the phone back together and all worked fine until i tried the wifi. Nothing, it turns on but stays as scanning and never finds anything even if its right next to the router.
I was advised in another thread that one of the cables might have come loose as i took the phone apart so i opened it up again but couldnt see anything wrong.
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. Whether a hard reset will solve the issue i dont know and its a pain to do really.
I haven't tried bluetooth, but considering it looks to work off the same antenna that too might have broken.
maybe solved
find bttrayce.exe or bttrayce.lnk in windows folder
run it and check them
copy lnk file to startup folder
restart
this is for wi-fi too .
I've run bttrayce.exe and the ink file is in the start up folder.
This hasn't made any differance.
enable wifi n mode using registry editor like total commander or resco, go to:
HKLM/Comm/BCMSDDHD1/Parms/11nModeDisable = Change from 1 to 0
or, install bsb tweaks and enable wifi n mode.....
or, the best answer is to flash a new radio-improves bluetooth, data, wifi and call signal
malanga3 said:
Hello;
It's been like a month that I have this problem, my bluetooth won't connect and neither is my wifi. The wifi sometimes connect with like one bar, the signal strength is awful and you have to be like 1 feet away of the router because if you move farther it disappears. I have tried to boost this in the settings by better performance but it doesn't make a difference.
In the other hand the bluetooth is not working at all, I tried to connect to my laptop and is like there's no bluetooth device in the area, tried it with my headset and get the same thing.
It's really frustrating cause this two features are very important for my daily use of this phone, so if someone now what to do please let me now.
Appreciate it!
Click to expand...
Click to collapse
did you hard reset and the problem persists? then it is a hardware issue, send it to htc.
Hopper81 said:
I'm hoping someone will get to the bottom of this as i miss my wifi.
All was working fine on my phone until I had to take my phone apart 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 and push the led plastic cover back into place, i didn't touch anything else. I put the phone back together and all worked fine until i tried the wifi. Nothing, it turns on but stays as scanning and never finds anything even if its right next to the router.
I was advised in another thread that one of the cables might have come loose as i took the phone apart so i opened it up again but couldnt see anything wrong.
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. Whether a hard reset will solve the issue i dont know and its a pain to do really.
I haven't tried bluetooth, but considering it looks to work off the same antenna that too might have broken.
Click to expand...
Click to collapse
so wait, you take the phone apart, put it back together, then it doesn't work, yet it isn't your fault? I hope you didn't screw up the void sticker covering the one screw when you did this, because you obviously damaged the the wifi cable in some way.
Obviously i'm aware that what ever has happened is my fault, my point was that if i'd taken it apart and knew i'd done something that might have damaged the board etc then that's fine I would be able to pinpoint what it was, but as i didnt do anything really especially to the main phone just the back case it's just a little odd.
Void sticker is fine.
seems like an antenna problem, there is a cable on the side of the phone with the volume rockers, there will be a cable going to the top board to the bottom board this cable attaches and can be removed. try to remove then reattach the cable
http://www.youtube.com/watch?v=cL-jnUKufC4&feature=player_embedded
the cable is on 2:38 of this video.
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.
I had the same problem with my GPS. I took the phone apart and found that the GPS unit was connected to an amplifer via two gold prongs. The connection was not flush, so I stretched the prongs abit (not too much) to improve the connection and put the phone back together. The problem was now fixed.
From memory I think the bluetooth and wifi worked on the same principle, and I think the amplifier states what its function is.
Hope this maybe some help.

[Q] WIFI problems after screen replacement

Hello Guys,
I just got my HD2 from repare, had to change the screen since it became unresponsive.
After I got it back, installed both WP7 and Anrdoid on it, I found out that the phone is not detecting any wifi networks. I tried in both WP7 and Android, and both of them do not detect any wifi networks. So it looks like when they changed the screen, they messed up WIFI connectivity. I'm guessing they might have forgotten to connect one of the connectors.
I am planning to take it back to them, but I was wondering if any of you knows which connector is for the WIFI, and if its easily visible once I take the back cover off, since I already done that before.
Thanks in advance
Hi dude,
if a connection is a problem and you even going to find it don't do it yourself.
it's a pretty small and gentle stuff, so you must know what you doing and how to connect them. Obviously you will need some serious tools.
my guess if you had all that - you already been doing this and not asking here.
so advice - not touching anything, not making it worse.
Best case: the connector came loose (which is not all that uncommon). It's the connector on the black wire on the top right side of the main board.
Worst case, they broke off a contact (which is also quite common).
Either way, don't try to repair it yourself but bring it back to the repair shop. If they accidentally broke off a contact then that requires a professional repair.
Thanks guys.
After some tests, I found out that the phone does detect wifi networks, but have extremely bad reception. I have to be very close to the wifi router for it to detect the network.
Any idea what might be causing this?
wessamzeidan said:
Thanks guys.
Any idea what might be causing this?
Click to expand...
Click to collapse
Like I said, either a loose connector or a contact has broken off. That will give you about 1 bar of reception while sitting next to your router...

[Q] wifi and 4g reception issues after teardown

Hi guys, hoping someone can give me some help with my phone problems.
I have a verizon s4 that was working perfect other than having a cracked lcd. I took apart my phone and unplugged all the flex cables and antenna and removed all the modular pieces on the phone then replaced the lcd/digitizer assembly (didn't use heat). When I finished my repair and put everything back together, the phone appeared to work fine at first, but I soon realised my wifi performance was really bad (1 bar 5 feet from router) and also my 4g was being weird (if it goes under 2 bars, it stops working and eventually after a few minutes shifts to 3g where it does work fine) I took the phone back apart to see if I missed anything, but the antenna are both plugged in properly and all the flex are plugged in.
Does anybody have any ideas?
8
I think I have figured out my problem, but I am not sure how to fix it. Hoping someone can help. I had an antenna contact bent over. When I went to bend it it broke the top portion off.
Any idea on how to fix or replace it? Also where to get a replacement part if needed.

Screen going gray?

My friend has recently started having problems with his G2. The problem is that the screen goes gray (you know, like old tv's when they didnt have any signal) when waking the phone up and couple of smacks against the wall seems to fix the problem mostly. The interesting thing is that the phone works perfectly while the screen is gray, he connected it to his laptop and was able to use it with somekinda program. But this is getting really annoying because its happening more and more often. What could be the problem? Broken screen, bad connection? Any help will be appreciated.
I have also been having this issue recently with my G2. I disassembled the phone and tried re-seating the video connectors. The phone did not exhibit the behavior for the remainder of that day, which was nice... but it started doing it again the next morning. My guess is the connectors are working themselves loose over time. Anybody have a suggestion on how to make the connections a little more stable?

Repeated deregistering from network

So initially the screen would not turn on but was obviously working otherwise (touch response, notifications, etc.). It did not work in recovery either.
Without other options, I took the phone apart down to the logic board and gently swabbed the connectors from that to the motherboard, reassembled and voila, screen works!
...until I discovered now that the network connectivity is a constant battle. It seems that I will randomly get the "x" through the signal bars and once that happens, I need to restart, change to GSM only, register with TMobile gsm network, wait, then switch to GSM,wcdma,lte auto. This will happen very often but I can't find a pattern.
Anyone have any ideas what might be loose or damaged internally + a solution??
Thank you guys!
Sent from my VS980 4G using Tapatalk
bbender716 said:
So initially the screen would not turn on but was obviously working otherwise (touch response, notifications, etc.). It did not work in recovery either.
Without other options, I took the phone apart down to the logic board and gently swabbed the connectors from that to the motherboard, reassembled and voila, screen works!
...until I discovered now that the network connectivity is a constant battle. It seems that I will randomly get the "x" through the signal bars and once that happens, I need to restart, change to GSM only, register with TMobile gsm network, wait, then switch to GSM,wcdma,lte auto. This will happen very often but I can't find a pattern.
Anyone have any ideas what might be loose or damaged internally + a solution??
Thank you guys!
Sent from my VS980 4G using Tapatalk
Click to expand...
Click to collapse
I would try swabbing the connectors again, and make sure the cellular antenna ground cabels are hooked up and not loose. I have the same model and could take a picture to show you where they are but I have no other camera, I'm pretty sure its to the right of the battery.

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