WiFi cutting out constantly on a semi-new note 3 (n900t) - Galaxy Note 3 Q&A, Help & Troubleshooting

So I got this phone from a sibling, and it was basically used for a month or two back when it released. No scratches or cracks or broken USB port or anything. The day I got it I immediately went to hook it up with service with Metro. I installed a fresh copy of lineage os 16 for obvious reason but the problem is that the WiFi keeps cutting off (mainly with 5ghz WiFi)... I've completely troubleshooted my router (factory reset) and changed WiFi channels... Could this be a problem with the phone itself? or am I missing something? Any tips or solutions would be greatly appreciated.

Sorry for the double post I don't know how to delete

N900t is not this forum .
You require
https://forum.xda-developers.com/note-3-tmobile
Usual is to flash stock firmware via Odin .

Related

Very Unusual Problem 2G Networks Dead, 3G Fine

Well this is a new problem. My G1 seems to have decided it will not register on any 2G networks any more. Tried 3 SIM cards, all the same situation where 3G works fine then 2G fails completely.
I had been experiencing random cut outs on both the WiFi and mobile connections since upgrading to the latest Cyanogen firmware so upgraded to the latest radio. That worked fine for a couple of days but now no dice.
Also worth mentioning is that the device was crashing sometimes when the phone gets too much in the memory (for instance with a couple of widgets running it crashes when you start the camera).
Any advice would be great
Have gone all the way back to stock (and most things in between) in the hope than it was a bad flash but not looking that way
Also had the back off to see if there are any obvious problems (like a loose connection or obvious burnt board), but still no joy. Anyone know what sort of costs HTC would put in to get this sorted?

[Q] Vibrant is not connecting to wifi networks

Hi I read through the forums and posts, but did not get a topic related to my issue. may be I missed something!!
My Samsung vibrant was connecting to wifi networks at home and office properly for almost 2 months and today it suddenly started acting strange. It detects the wifi connects to it then keeps disconnecting and connecting every second. Really worried as this is an unlocked version and I recently rooted it too. But even after rooting the wifi was working fine.. No idea.. what happened suddenly Plz help..
- Venky
I'm going to assume you mean it isn't connecting at your office? Samsung Galaxy phones are notorious for having connection problems with enterprise routers, mine had the same problem last year.
The big problem for me was, that it was my school's wifi all together, and since I live here at my university, I had to go and up my data plan because, well quite frankly, you can't do jack **** with 200 mb of data.
I tried factory resetting, flashing new ROMs and kernels to no avail; however about 2 months ago it just started working for no reason and has continued to work since.
Good luck.
Thanks FLAC... Like you said... It startedWww working automatically. Very strange...

[Q] Samsung s4 i9505 stock rom, new screen,low wifi

Hello. I have a Samsung s4 i9505.
I changed over the Lcd screen and digitizer.
Now my WiFi is working but the range is very poor. About half of my other Samsung devices. Before I changed the screen it would work in the lounge room. Now connection times out or fails to get an IP address via WiFi.
I'm pretty sure it isn't the router.
I've tried reflashing the stock rom both 4..4.4 and 5.0, with Australian rom.
Now the WiFi comes up, will work within a close range and full speed but from a normal distance is not working.
I've opened it up and everything seems connected and intact?
Is it worth getting a new WiFi antenna? Or may I have damaged the motherboard.
Any suggestions appericated, I'm going mad.... Lol
Samsung_aufan said:
Hello. I have a Samsung s4 i9505.
I changed over the Lcd screen and digitizer.
Now my WiFi is working but the range is very poor. About half of my other Samsung devices. Before I changed the screen it would work in the lounge room. Now connection times out or fails to get an IP address via WiFi.
I'm pretty sure it isn't the router.
I've tried reflashing the stock rom both 4..4.4 and 5.0, with Australian rom.
Now the WiFi comes up, will work within a close range and full speed but from a normal distance is not working.
I've opened it up and everything seems connected and intact?
Is it worth getting a new WiFi antenna? Or may I have damaged the motherboard.
Any suggestions appericated, I'm going mad.... Lol
Click to expand...
Click to collapse
Did you fix the lcd and the digitizer by your own? Or did you go to the official service of samsung?
I did it myself. Have done it before on the same phone with no issues.
U must raise all gold spring. To makr better connection to the antenna
Samsung_aufan said:
Hello. I have a Samsung s4 i9505.
I changed over the Lcd screen and digitizer.
Now my WiFi is working but the range is very poor. About half of my other Samsung devices. Before I changed the screen it would work in the lounge room. Now connection times out or fails to get an IP address via WiFi.
I'm pretty sure it isn't the router.
I've tried reflashing the stock rom both 4..4.4 and 5.0, with Australian rom.
Now the WiFi comes up, will work within a close range and full speed but from a normal distance is not working.
I've opened it up and everything seems connected and intact?
Is it worth getting a new WiFi antenna? Or may I have damaged the motherboard.
Any suggestions appericated, I'm going mad.... Lol
Click to expand...
Click to collapse
You have exactly the same problem as me. I replaced the screen like you, it's the same problem.
Here's my thread: http://forum.xda-developers.com/galaxy-s4/help/i9505-slow-wifi-router-t3076105

Galaxy S4 Wifi and Bluetooth

My brother gave me his old Galaxy S4 E330K. Wifi Bluetooth doesnt work. What I found out is he flashed it with a 5.0.1 Black edition firmware of e330k. I tried flashing it with 4.4.2. Wifi and bluetooth still doesnt work. And whats confusing is the wallpapers are for s4 black edition but the rom i flashed was not a black edition one. Is this wifi and bt already a hardware issue?
Sometimes when a ROM is installed you need to run the "wiping" processes 3 times before you get install a different ROM.
Or flash the rom twice to make sure that partitions have been overwritten.
Or, your wifi chipset might have been burnt. This is what happened to me about 3-4 weeks ago. One day I tried to send some files via BT. BT turned on, but could see no devices at all. A couple of minutes later, the wifi went the same way. Turned on but I couldn't see any available networks. Another couple of minutes later, neither wifi nor BT didn't turn on anymore.
Opened the device and saw the chipset burnt
I read similar stories the same time I experienced these problems; I think for a lot of people S4 is starting to break.
Try to find out if it's a hardware problem or a flash problem.
Cheers!

WiFi and Bluetooth Issues on SGH-1337M

Hi all,
I've been having kind of a strange issue with my Galaxy S4 SGH-1337M. I'll start off with a bit of background info. A few weeks ago my phone started having problems charging, so I replaced the charging port last week. Shortly after replacing the charging port, my S4 started having problems connecting to WiFi and Bluetooth. It's a little odd though. It still connects to WiFi networks occasionally, but when it does, its an extremely weak connection and drops almost immediately. It's the same story with the Bluetooth. It connects fine, but music playback stutters with speakers and my car's stereo. I've already taken it apart again to see if anything looks damaged or if the WiFi antenna was disconnected, but everything looked normal to me. My device is running Android version 5.0.1 and isn't rooted. I really don't know what's going on, and any help would be greatly appreciated.
bsanf said:
Hi all,
I've been having kind of a strange issue with my Galaxy S4 SGH-1337M. I'll start off with a bit of background info. A few weeks ago my phone started having problems charging, so I replaced the charging port last week. Shortly after replacing the charging port, my S4 started having problems connecting to WiFi and Bluetooth. It's a little odd though. It still connects to WiFi networks occasionally, but when it does, its an extremely weak connection and drops almost immediately. It's the same story with the Bluetooth. It connects fine, but music playback stutters with speakers and my car's stereo. I've already taken it apart again to see if anything looks damaged or if the WiFi antenna was disconnected, but everything looked normal to me. My device is running Android version 5.0.1 and isn't rooted. I really don't know what's going on, and any help would be greatly appreciated.
Click to expand...
Click to collapse
Try a Wipe data : go in recovery mode and chose delet alla user data.
NB : All you're Data will be erased, need a backup if you wanna keep it.
Good Luck
Elgatte said:
Try a Wipe data : go in recovery mode and chose delet alla user data.
NB : All you're Data will be erased, need a backup if you wanna keep it.
Good Luck
Click to expand...
Click to collapse
Unfortunately that didn't work. Thanks for the suggestion though.
bsanf said:
Unfortunately that didn't work. Thanks for the suggestion though.
Click to expand...
Click to collapse
Hello,
u can go heare ==> http://forum.xda-developers.com/showpost.php?p=50787570&postcount=2549 . See how to flash your modem, but first you need to know your modem's version ( ie : I337MVLUGOC4 or higher...) to do so, go to your dialer and type : *#1234# your modem version is called CP, google it, download it , flash it with odin, reboot and see if it's working.
If the wifi started after changing the charging port, it could be a loose connection somewhere or there is something wrong with the replacement charging cable.
Elgatte said:
Hello,
u can go heare ==> http://forum.xda-developers.com/showpost.php?p=50787570&postcount=2549 . See how to flash your modem, but first you need to know your modem's version ( ie : I337MVLUGOC4 or higher...) to do so, go to your dialer and type : *#1234# your modem version is called CP, google it, download it , flash it with odin, reboot and see if it's working.
Click to expand...
Click to collapse
That didn't work either. I also tried flashing the stock rom, which yielded no result.
audit13 said:
If the wifi started after changing the charging port, it could be a loose connection somewhere or there is something wrong with the replacement charging cable.
Click to expand...
Click to collapse
I actually tried the old charging port to see if the issue was with the new component, but I still had the same problem with the old connector. I've checked all of the connections and everything, at least to my eyes, appears to be connected securely.
It's not uncommon for the wifi chip on the s4 to stop working. I have two motherboards sitting here that work perfectly except the wifi.
audit13 said:
It's not uncommon for the wifi chip on the s4 to stop working. I have two motherboards sitting here that work perfectly except the wifi.
Click to expand...
Click to collapse
Okay, well I guess that's what happened then. Thanks for the suggestions everyone.
There may still be hope. Where did you get the replacement USB flex cable for the phone? I still say it could be the cable if the replacement was not oem.
audit13 said:
There may still be hope. Where did you get the replacement USB flex cable for the phone? I still say it could be the cable if the replacement was not oem.
Click to expand...
Click to collapse
I bought the USB port on eBay. The description claimed that it was OEM, but I don't think I would know otherwise. Like I said though, I have already eliminated the new flex cable as the culprit becasue when I reinstalled the old flex cable, the WiFi and Bluetooth were still broken.
The phone has the correct imei? If it does, then the wifi chip is probably defective.

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