Develop Bugs

Really weak wifi signal and screen sensitivity issues

So my note 2 has really really weak wifi signal, I am 20 ft from the router with only 1 wall between us and the wifi keeps timing out and sputtering.
I have turned off the power saving wifi and replaced the drivers with the ones from 4.1.1, I have tried numerous kernel and roms.
Is it time to open up the phone to look for a hardware fault?
Also screen sensitivity on the bottom right of the screen is terrible, trying to hit the back space key can be a nightmare at times
Sent from my GT-N7100 using Tapatalk 2

bunnybash said:
So my note 2 has really really weak wifi signal, I am 20 ft from the router with only 1 wall between us and the wifi keeps timing out and sputtering.
I have turned off the power saving wifi and replaced the drivers with the ones from 4.1.1, I have tried numerous kernel and roms.
Is it time to open up the phone to look for a hardware fault?
Also screen sensitivity on the bottom right of the screen is terrible, trying to hit the back space key can be a nightmare at times
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
Found the wifi fix
I just figured out what the problem is, the wifi antennae in the case was buggered! I ordered a new back of the phone and replaced that and the wifi is fixed!!! I had a feeling that was the cause of the issue but I couldn't be sure till I replaced it. The wifi antennae is above the power button, with the back off you can see it as the long piece of plastic that is stuck in on the very edge. I had to buy a whole new back - it was only about $11 shipped. But it solved all my wifi problems.

bunnybash said:
I just figured out what the problem is, the wifi antennae in the case was buggered!
Click to expand...
Click to collapse
I took the main part out of the chassis frame and found that the spring contact on the PCB (which is supposed to touch the wifi antenna on the chassis frame) wasn't springing up. I bent it up so it matched the profile of the other spring contacts and put it back in the chassis frame and all was well. My suspicion is your wifi antenna wasn't broken (it's just a bit of metal so there's nothing to break, really), just not quite touching the spring contact.

Same Problem
bunnybash said:
Found the wifi fix
I just figured out what the problem is, the wifi antennae in the case was buggered! I ordered a new back of the phone and replaced that and the wifi is fixed!!! I had a feeling that was the cause of the issue but I couldn't be sure till I replaced it. The wifi antennae is above the power button, with the back off you can see it as the long piece of plastic that is stuck in on the very edge. I had to buy a whole new back - it was only about $11 shipped. But it solved all my wifi problems.
Click to expand...
Click to collapse
Good day I am assuming that this is the same thing that has happened to my note 2 it had a fall, everything else is working fine just the wifi signal drops when I step a couple feet away from the router so can I ask for a link of where I can purchase the same part you are speaking of or a picture of where the spring contact is so I can try just bending it up please

Yeah mate when my wife comes home with her phone I will be able to take some pics of my phone and post them up
Sent from my GT-N7100 using Tapatalk 4

bunnybash said:
Yeah mate when my wife comes home with her phone I will be able to take some pics of my phone and post them up
Sent from my GT-N7100 using Tapatalk 4
Click to expand...
Click to collapse
I,m experiencing the exact same problem. Wifi signal has gone extremely weak after a severe fall. Can u please tell me exactly which part to change.
Post a picture, or an amazon link to buy that part?
any help would be appreciated.

[Q] [Help] Network reception problems after attempting screen repair

Hi everyone.
I wonder if anyone could be of some help please.
A couple of days ago I attempted to replace the digitiser of my One X due to it having a large scratch on the glass, I consulted various guides and followed them but unfortunately I couldn't carry out the repair as several pieces within the phone are heavily glued down (such as the battery so I aborted the repair and put everything back.
Wifi and bluetooth work just fine with no problems however my network reception has been cut in half, normally at home I can achieve between 4 or 5 bars signal, now however I only seem to get 1 or 2 bars and when I'm out I frequently lose reception.
I opened the phone again to examine the aerial (the thin wire that connects to two point down the side of the phone and I could see no obvious problem.
So my question is, have I potentially damaged the aerial? Or is it supposed to be connected in a special way such as connected the otherway around or does the wire need to be tense or relaxed? etc
Maybe there is another connection I need to check over?
If needed I can take a picture of how it looks currently.
Thanks in advance for any help.

I had this exact problem. you need to check the little black cable (to the right of the battery) is connected at both ends.
the top connects to the motherboard and the bottom conencts to the docking connector board.
Check the pop connectors on the boards are still intact. If u have buggered up the bottom as I did u can get a replacement for about 8 quid. if its the top then I guess u need to replace the motherboard which aint cheap!
---------- Post added at 02:52 PM ---------- Previous post was at 02:52 PM ----------
please let me see a pic also mate

Ah it's ok now I've fixed it. I turned the aerial around and made sure it was as straight as possible. I did also notice that one of the gold plated connectors at the bottom were slightly bent down, so I carefully brought it back up.
Put it all back together and now I've got full signal again.
Thanks anyway pal

TheOnlyIntruder said:
Ah it's ok now I've fixed it. I turned the aerial around and made sure it was as straight as possible. I did also notice that one of the gold plated connectors at the bottom were slightly bent down, so I carefully brought it back up.
Put it all back together and now I've got full signal again.
Thanks anyway pal
Click to expand...
Click to collapse
No worries mate, glad your almost fail was no where near as epic as my major fail! I had to spend all night figuring out wtf i had done then wait for 2 days for the spare part to arrive lol!!!!!

I still think I've somehow damaged it though, even though the signal is a lot better now, it's now where near as good as it used to be.
Makes me question whether or not I want to get another HTC phone when my contract is due though, servicing it is so hard and all that damn glue. I nearly ripped the wifi aerial thanks to all that glue.

TheOnlyIntruder said:
I still think I've somehow damaged it though, even though the signal is a lot better now, it's now where near as good as it used to be.
Makes me question whether or not I want to get another HTC phone when my contract is due though, servicing it is so hard and all that damn glue. I nearly ripped the wifi aerial thanks to all that glue.
Click to expand...
Click to collapse
are you sure the coaxial cable (the black wire directly to the right of the battery) is connected properly mate?

exocetdj said:
are you sure the coaxial cable (the black wire directly to the right of the battery) is connected properly mate?
Click to expand...
Click to collapse
Absolutely, my signal is consistently higher now rather then changing between 3 to none (between 5 to 3 now).

TheOnlyIntruder said:
Absolutely, my signal is consistently higher now rather then changing between 3 to none (between 5 to 3 now).
Click to expand...
Click to collapse
cool, thats like mine also

[Q] Nexus 7 2013 WIFI no display after dropping

hello!
Had my nexus 7 2013 WIFI for about a year. Its in a moko hard case. Yesterday it was dropped on carpet but from about 9 ft high, it continued to work. The next morning, it was power on but no display. once i plugged it in, display came on. battery was not discharged. by evening, no display at all. snowy screen once. the tablet boots up fully. ADM can locate and ring the device, it shows on my wifi router etc. But no display at all. the closest to display it came is showing the Google logo during boot up.
so it looks to me like the screen connector came loose.
EDIT: Ok, i opened the back case. Yes, it is the loose screen connector. if i press down on the gold ribbon connector, screen is on. now i got to figure out how to fix it.
can someone help me fix this?
Final edit: I fixed the display ribbon connector by inserting it into its connector firmly. everything is well.
thank you

Contact Service Center
Dude this is a matter of hardware information for which I think only the Service centers will be helpful.

iamdipchat said:
Dude this is a matter of hardware information for which I think only the Service centers will be helpful.
Click to expand...
Click to collapse
if you have spent anytime on these forums, you will notice there are several hw problems for which other users have provided valuable insights. nothing wrong in asking for help

Wifi Bluetooth Antenna problem with connection

Hey guys,
I have a problem with my OP3. I dropped it and it had a big dent on the back. So I decided to open it an try to press the dent back into shape.
After reassembling my Wifi and bluetooth are broken. I can get connections but the range is realy bad, about 5m for Wifi till it disconnects and about 5cm for Bluetooth.
I opened it a second time to take a look if i missed a connector or something and i saw a clip (those small things that connect to the back of the phone) was broken so i ordered a sparepart (it was the headphonejack circuit board) and changed it but its still not working.
Does anyone know where the bluetooth and wifi antenna are positioned ?
Have i just broke my phone or can i change something to get it back to work ? Everything else is working fine.
Thanks in advanced
Dennis

Same problem here! After I replaced the screen I lost my WiFi and bluetooth connections as well. WiFi is working in a range within 2m.
Is changing the coax antenna cable a solution?
Many thanks in advance from me as wel
Ken

Glad I'm not the only one, so maybe we get more help when more people have the same problem.
I changed the backplate cause of the dent and because the antenna is built in there but didn't change anything.
I have ordered a coax cable and will replace it when it arrives, could be today. Will post afterwards if this helped, but I'm not realy confident in that because i haven't done anything with this cable while repairing.
Maybe someone knows more about this, i just don't get why it is working but has no range, makes no sense to me ...

I have opened my phone several times now, but nothing seems to work.
Do you have an update on the coax cable yet? I hope it works, or the one plus 5 has to hurry ?

Hey there, same for me, opened it up to 10 times now but nothing helped, coax cable was a failure too. I realy don't know what it could be.
I'm about to wait for the OP5 or get a used 3(T) depending on what the . Was thinking about getting one with cracked screen and change everything but not sure if i should try it.

I have the same problem now. Any updates?
Hi guys! Yesterday I changed the camera of my OnePlus 3 because it wasn't focusing anymore, after reassembling my phone I noticed it wasn't connecting to the wifi anymore, tried Bluetooth and it was the same problem... I had to be really close for it to connect
Did any of you had any luck solving this problem? Did changing the board in the bottom of the phone not solve it? It seems that's where the WiFi is... Or maybe changing the backplate
Thanks in advance!

qibeike said:
Hi guys! Yesterday I changed the camera of my OnePlus 3 because it wasn't focusing anymore, after reassembling my phone I noticed it wasn't connecting to the wifi anymore, tried Bluetooth and it was the same problem... I had to be really close for it to connect
Did any of you had any luck solving this problem? Did changing the board in the bottom of the phone not solve it? It seems that's where the WiFi is... Or maybe changing the backplate
Thanks in advance!
Click to expand...
Click to collapse
i also have same problem , need fix

Anyone found a solution? I had the same problem when I replaced the fingerprint sensor + the battery
I've been without wifi for 4 months now... Any help is appreciated

Hi, guys. I have the same problem. Did anyone find a solution?
I replaced my rear camera and the loudspeaker, at reboot wifi was not working. I noticed that if I'm near the access point network is detected but with very poor signal strength. Thanks.

Hi, maybe I could have found a possible reason to our lack of wifi and bluetooth signal.
Please look at this thread and give me your opinion. Probably your mainboard shows the same problem.
https://forum.xda-developers.com/oneplus-3t/help/wifi-bluetooth-signal-camera-replacement-t3902122
Thanks, guys.

Denzo90 said:
Hey guys,
I have a problem with my OP3. I dropped it and it had a big dent on the back. So I decided to open it an try to press the dent back into shape.
After reassembling my Wifi and bluetooth are broken. I can get connections but the range is realy bad, about 5m for Wifi till it disconnects and about 5cm for Bluetooth.
I opened it a second time to take a look if i missed a connector or something and i saw a clip (those small things that connect to the back of the phone) was broken so i ordered a sparepart (it was the headphonejack circuit board) and changed it but its still not working.
Does anyone know where the bluetooth and wifi antenna are positioned ?
Have i just broke my phone or can i change something to get it back to work ? Everything else is working fine.
Thanks in advanced
Dennis
Click to expand...
Click to collapse
hey bro
i also have the same problem if u have found the solution plz tell me also
email [email protected]
or instagram Kappil_antil

A70 weak wifi signal

Hello guys
Is just me or anyone here is having weak wifi signal even when I am near the router while other phones not having this issue!!
Ps: it's only my second day after buying the phone

No issues over here.

mine is fine too, it drops out once in while but so did my last phone lol

robgee789 said:
mine is fine too, it drops out once in while but so did my last phone lol
Click to expand...
Click to collapse
Mine is dropping too .. I hope someone got any notes about this issue before selling the phone

No issues here....

No issues, WIFI working perfectly here

I Feel Sorry For You..
quadcore003 said:
Mine is dropping too .. I hope someone got any notes about this issue before selling the phone
Click to expand...
Click to collapse
Sorry To Read You Received A Faulty Device.. :angel:
There Are Zero Wi-Fi Issues With The A70 On A Mass Level.
You Should Begin The Process Of Obtaining A New Replacement Unit A.S.A.P.

Mine drops frequently to the point that it's frustrating. Check out my post about the screen and tell me if you have the same issues too. We might have the same versions of the device, which appear to be a bunch of faulty versions from the same batch.

I'm having an issue as well. My old phone can and able to detect and connect to my WiFi (which is quite distant tho) meanwhile my A70 can't, I have to get closer to the Wi-Fi in order for it to detect/connect to it but after that if I return to the other place when it doesn't pick it up, I'm able to maintain the connection. It's weird..

Use 3rd party app to connect on wifi. Im using wifi master. Playstore have it

jedtan025 said:
Use 3rd party app to connect on wifi. Im using wifi master. Playstore have it
Click to expand...
Click to collapse
Can u please attach the screenshot of wifi master app because there are so many wifi master apps in playstore

Shozaf.shah said:
Can u please attach the screenshot of wifi master app because there are so many wifi master apps in playstore
Click to expand...
Click to collapse
Here you go buddy

That Wifi Master app is unsupported by the A70 so I don't know why you'd recommend it here

wifi is definitely one of the worst thing on the a70...it drives me up the wall, and i am ready to sell my phone and never touch any samsung anymore because of this...i am not sure, but samsung is trying too hard to make some things "smarter" meaning if samsung thinks your wifi signal is bad it drops connection just like that...exclamation mark, lost connection, switch to data, are countless through the day...and samsung is playing dumb about this problem...
my wife is using lg and meizu on the same network and wifi is working perfectly fine 24/7...

same here. my friend is able to get a stable connection on the same network with a much older phone. However samsung won't do anything about it.

jedtan025 said:
Use 3rd party app to connect on wifi. Im using wifi master. Playstore have it
Click to expand...
Click to collapse
I can't see any app that you mention.
Can you kindly share its link here or pm me.
As my A70 also has weak wifi issue.
Can't see the wifi router downstairs when my old. Samsung note 4 can, laptop can

I'm having the same issue. Weak Wi-Fi signal in my A70. While my other phones are getting full signal. Is there any way to fix?

seems like some antenna problem. you can probably fix it by bridging antenna contacts with the pins on the motherboard with a lump of copper wire. Solder can also help.
to take itapart:
1) insert a thin piece of plastic( like a flexible plastic file) into the gap between the rear plastic and frame, and cut the adhesive, and peel away the rear plastic
2) remove the screws and sim tray
3)slide your finger nail into the gap between the rough plastic and the smooth plastic on the side rails. The rough plastic is the part that is touching the screen, and the smooth plastic is the side rails. The smooth plastic is of a different colour, and the rough plastic is black.
4 pull the side rails away, and examine the copper antenna contacts. you might want to replace the mid frame. If you still have warranty, bring it back to store