WiFi Connection issue - Galaxy Tab S Q&A, Help & Troubleshooting

I have a non rooted Tab S 10.5. I always put it in airplane mode when I'm done using it to preserve battery life, Tuesday I took it off of airplane mode and now it won't connect to my WiFiat all, it just keeps saying saved and secured under my SSID. I have wiped the cache and did a full factory reset and it's still doing it. It was literally working on Monday and Tuesday it won't connect to my WiFi? Nothing was updated or change from Monday to Tuesday. Any ideas what's going on here or how to fix this? I love my Tab S and use it all the time, but with no internet, it's a very expensive paperweight.

hypurr dbl nkl said:
I have a non rooted Tab S 10.5. I always put it in airplane mode when I'm done using it to preserve battery life, Tuesday I took it off of airplane mode and now it won't connect to my WiFiat all, it just keeps saying saved and secured under my SSID. I have wiped the cache and did a full factory reset and it's still doing it. It was literally working on Monday and Tuesday it won't connect to my WiFi? Nothing was updated or change from Monday to Tuesday. Any ideas what's going on here or how to fix this? I love my Tab S and use it all the time, but with no internet, it's a very expensive paperweight.
Click to expand...
Click to collapse
No one has any ideas what happened? I messed with it some more yesterday and no luck, I am stuck and need some help with this please.

hypurr dbl nkl said:
No one has any ideas what happened? I messed with it some more yesterday and no luck, I am stuck and need some help with this please.
Click to expand...
Click to collapse
Factory reset and the wifi should be on by the default. If it fails to on or detects any network, you need to replace the mainboard as wifi circuit is involved many components.
It's not worth to fix as where you can find components for Samsung mainboard except from used one.

Related

Phone lost connectivity.....is it hardware?

So my phone lost connectivity yesterday around 5pm. I though nothing of it at first, but then a few hours later it still was not able to connect to any mobile networks. I am unable to call, text or do anything with data for that matter. I tried the sim in my old trusty G1 and everything worked.
I called tech suppport and they refreshed my sim. I went through all of there troubleshooting non sense. The verdict? Warranty exchange...but wait....they are out of stock and have no estimated time of when they will be available.
Has anyone else heard of a phone suddenly losing all ability to get on a mobile network? I have been on the internet researching the issue for hours now and have tried everything I have come across, but no luck.
1. Left the battery and sim out of the phone overnight
2. Numerous airplane mode toggles
3. Connecting headphones
4. Phone Info menu and turning radio off/on + trying different radio settings
5. Reflashing radios
6. Flashing different roms
7. Odin back to stock 2.3.6 with wiping of everything
I am thinking I have been defeated by the galaxy s2.
G1ForFun said:
So my phone lost connectivity yesterday around 5pm. I though nothing of it at first, but then a few hours later it still was not able to connect to any mobile networks. I am unable to call, text or do anything with data for that matter. I tried the sim in my old trusty G1 and everything worked.
I called tech suppport and they refreshed my sim. I went through all of there troubleshooting non sense. The verdict? Warranty exchange...but wait....they are out of stock and have no estimated time of when they will be available.
Has anyone else heard of a phone suddenly losing all ability to get on a mobile network? I have been on the internet researching the issue for hours now and have tried everything I have come across, but no luck.
1. Left the battery and sim out of the phone overnight
2. Numerous airplane mode toggles
3. Connecting headphones
4. Phone Info menu and turning radio off/on + trying different radio settings
5. Reflashing radios
6. Flashing different roms
7. Odin back to stock 2.3.6 with wiping of everything
I am thinking I have been defeated by the galaxy s2.
Click to expand...
Click to collapse
Its scary how often this has happening...your probably the 5th person on xda who had this happen to them that i saw...Your efs folder probably got corrupt somehow and there is now way to restore that. You're going to need a get a warranty replacement...
Black listed?
Sent from my SAMSUNG-SGH-I717 using XDA
shehrammajid said:
Its scary how often this has happening...your probably the 5th person on xda who had this happen to them that i saw...Your efs folder probably got corrupt somehow and there is now way to restore that. You're going to need a get a warranty replacement...
Click to expand...
Click to collapse
I have read about that happening before, just don't know why it would have happened out of nowhere. Chalking it up as stuff happens.
funziebear said:
Black listed?
Sent from my SAMSUNG-SGH-I717 using XDA
Click to expand...
Click to collapse
I asked them and they said it was in good standing.
G1ForFun said:
So my phone lost connectivity yesterday around 5pm. I though nothing of it at first, but then a few hours later it still was not able to connect to any mobile networks. I am unable to call, text or do anything with data for that matter. I tried the sim in my old trusty G1 and everything worked.
I called tech suppport and they refreshed my sim. I went through all of there troubleshooting non sense. The verdict? Warranty exchange...but wait....they are out of stock and have no estimated time of when they will be available.
Has anyone else heard of a phone suddenly losing all ability to get on a mobile network? I have been on the internet researching the issue for hours now and have tried everything I have come across, but no luck.
1. Left the battery and sim out of the phone overnight
2. Numerous airplane mode toggles
3. Connecting headphones
4. Phone Info menu and turning radio off/on + trying different radio settings
5. Reflashing radios
6. Flashing different roms
7. Odin back to stock 2.3.6 with wiping of everything
I am thinking I have been defeated by the galaxy s2.
Click to expand...
Click to collapse
I bet you were fiddling around with radios huh? I messed around flashing alternate radios to mine and my girl's phone and her phone was having this issue. Nothing would fix it, good thing I created a nandroid backup because all issues were fixed after I flashed back.
IRIE4IPIER said:
I bet you were fiddling around with radios huh? I messed around flashing alternate radios to mine and my girl's phone and her phone was having this issue. Nothing would fix it, good thing I created a nandroid backup because all issues were fixed after I flashed back.
Click to expand...
Click to collapse
No...I wasnt doing anything to the phone. I had been running the same rom for about two weeks and was enjoying the luxury of amazing battery life.
While I was browsing the net on my phone, it lost signal...since then it hasn't returned.
I did do a warranty exchange so hopefully I will have a working device soon.
If anyone is feeling that their Galaxy S2 is slow, then just use a g1 for a day
Sent from my HTC Dream using XDA
Well hot diggity damn
I got a brand new in box galaxy s2 from t-mobile
$5 is all it cost me. Today is a good day.
Date on box 3/20/12
Made in China
My old galaxy s2 never did gain the ability to reconnect to the network...so strange. Happened on its own.

Wifi not working properly

This is strange, my wifi works but then suddenly it only uploads (only green arrow lights up) and it will not download (orange arrow will not light up). I can disconnect and reconnect and I get some service, but then nothing happens.
I've tried the following:
Rebooting the phone several times
Restarting the router
Changing from DHCP to Static IP
Turning off the new open network notification
Clearing data from Google Play store
Disabled wifi power save with *#0011#
Nothing seems to fix it. What is going on?
READ BEFORE YOU FOLLOW ANY OF MY INSTRUCTIONS!! U HAVE BEEN WARNED I AM NOT RESPONSIBLE IF YOU SOMEHOW DAMAGE YOUR PHONE!!!
OK so let's go straight to Ur answer.... Let it sit for a while after it boots up (a minute) with Ur wifi on. so restart the phone while wifi is on and let it sit for a while... If Ur using a wired connection with a wireless router disconnect the wired modem then the wireless and wait 10 secs and reconnect the wired first and let's all the lights go green or whatever color they show u its ready and then connect the wireless router and try to connect to it.
If that didn't work and you don't have your phone rooted then flash the only time that we have for now. That should fix the wifi issue.
If it doesn't work try to go back to stock and let it sit for a while without touching it and if it doesn't work then the phones defective but keep in mind that if you went through the root process that if you send it back without erasing the flash counter your warranty will be voided so be aware of it. I don't know if there's an app compatible with the s4 so if it's not rooted then replace it just to be safe.... It's your choice
Sent from a phone better than yours!
My phone is not rooted.
What did you mean by flashing the time?
How do I erase the flash count if I decide to root later?
Thank you for your help. =)
------edit------
The method -- sans the flashing the time -- seemed to work, but then the internet stalled again. This is happening on two S4 phones. My other phones have no trouble with the wifi, my pcs have no trouble with the wifi. What are the odds that two phones aren't working? Nobody else is having this problem?
I have already made a thread with the sane issue. You're not the only one facing it. A lot more people are too. It might be a software thing and might be fixed in the next update. If not, exchange it
Sent from my SGH-M919 using xda app-developers app
What router are you using? D-Link DIR-655 seems to be most popular one people are having trouble with. What mode are you using (a/b/g/n/mixed/etc)? Mine only works with Mixed n and g mode. When you turn off the wifi, does it actually turn off (the green indicator will dim but should actually go away when it's off)? The stock rom seems to want to keep the wifi on at all costs... not sure why! Mine is very stubborn and takes several tries before it actually turns off and says "turn wifi on the see available networks." In order for the *#0011# Power Save Mode Off setting to work, the WiFi needs to actually turn off then back on. I have to toggle airplane mode sometimes just to get the wifi to turn off.
DGL-4500 Linksys
It shuts off when I save; I put the settings as you suggested. I'll test it.
reilus said:
DGL-4500 Linksys
Click to expand...
Click to collapse
DGL-4500 is a D-Link, correct? If it is a D-Link, I'd make sure you are on the latest firmware for it and try various mode settings (disable mixed modes, 2.4GHz or 5GHz only, WPA2/TKIP only, etc). This post details a solution to my scenario; maybe it'll give you some ideas.
I have d-link router too and wifi working just fine
KaneHusky said:
DGL-4500 is a D-Link, correct? If it is a D-Link, I'd make sure you are on the latest firmware for it and try various mode settings (disable mixed modes, 2.4GHz or 5GHz only, WPA2/TKIP only, etc). This post details a solution to my scenario; maybe it'll give you some ideas.
Click to expand...
Click to collapse
Yeah, it is a D-Link; not a Linksys. I tried what you did, it seems to be okay so far. I have the latest firmware. I still think this is a problem with the phone. Do you think an update will fix it?
reilus said:
Yeah, it is a D-Link; not a Linksys. I tried what you did, it seems to be okay so far. I have the latest firmware. I still think this is a problem with the phone. Do you think an update will fix it?
Click to expand...
Click to collapse
Yes, it's definitely a problem with the phone. I've spent the last several days researching and trying to find a permanent solution. It appears to be a software issue but I've yet to explain how wifi works just fine for some and not for others.
Any solution to this yet without messing with the router setting. I have this week left to get a full refund. I doubt exchanging it would make a difference. Plus tmobile is out of stock and stores won't allow exchanges since I bought mine online.
Sent from my SGH-T889 using Tapatalk 2
I sent my phone to Samsung, so I'm waiting to hear back from them on what they have to do to fix my issue. Maybe it's a faulty batch of Broadcom chips?
KaneHusky said:
I sent my phone to Samsung, so I'm waiting to hear back from them on what they have to do to fix my issue. Maybe it's a faulty batch of Broadcom chips?
Click to expand...
Click to collapse
Thanks for the reply. Hopefully it can be fixed. I have 4 days left to return so I will return it for now and buy it later if it gets fixed. Let us know how it goes.
Sent from my SGH-M919 using Tapatalk 2
Has anyone heard anything on this? I got a PM from Samsung asking me some questions, but they never got back to me. Any news?

[Q] Major WiFi issue out of nowhere?

Hey all. I need some advice. This morning my G3 (D850) dropped WiFi connection for no reason. It says the signal is good but the network info says saved, secured. It will attempt to connect over and over again and if it does connect the signal is weak as can be and it drops the connection within 2 seconds. My coworker has a G3 also and is connected to the same work network I am. His connection says excellent where as mine said good. His device connects just fine with full bars. I'm baffled. I've already tried manually selecting 2.4 Ghz and 5 Ghz instead of auto select and that didn't help at all. I've tried manually turning off WiFi and turning it back on. I've tried turning airplane mode on and then off to refresh the connection and that didn't help. I've done a battery pull as someone in one of the android authority forums suggested that (apparently I am not the only one having this issue.), didn't work. I've unchecked WiFi optimization - no dice. There was another post on a different forum here on XDA that said turning off WiFi and then deleting the WiFi config folder located in data/etc/wifi and then rebooting fixed the issue for them so I tried that. After reboot when I tried to turn on WiFi my G3 rebooted itself. Does it everytime. SO, I had to restore to a nandroid backup (btw I'm on rooted stock 10f) to get the phone to stop hating my WiFi toggle attempts. Last ditch effort I did a factory reset hoping for an easy fix... Nope. I don't know what else to try. It was fine yesterday all day. This morning it was perfectly fine and then randomly started having this issue. I haven't altered any system files whatsoever. I really don't want to send my device to LG for warranty replacement so I'm hoping someone can help me out that may have had this issue and resolved it. The only difference between my device and my coworkers device is he is still on 10d and I am on 10f. That could be the issue I guess but that doesn't really explain why my device has been perfectly fine until this morning and I've been on rooted 10f for weeks. I am planning on flashing back to straight bone factory stock 10d when I get home here in a few hours from work but Idk if that will help or not. Judging from the amount of google search results of "LG G3 WiFi connection problems" this seems to be an issue for several people. I won't know if it's on the software side or hardware side until I get home but in the meantime has anyone had these issues at all? People have had success in changing to Static IP but I would have to do that for every connection I attempt to connect to and that's a pain in the a$$. Also, that does nothing to identify the root cause of the issue. Any help would be greatly appreciated. =)
BreakingVZW said:
to much words
Click to expand...
Click to collapse
try deleting /data/misc/wifi then reboot, it that doesn't work try an other kernel(rin kernel is good)
suljo94 said:
try deleting /data/misc/wifi then reboot, it that doesn't work try an other kernel(rin kernel is good)
Click to expand...
Click to collapse
Thanks for the reply. So it turned out my phone just randomly decided it doesn't like my work network anymore. Idk why lol. I got home and it hooked right into WiFi. Gf's WiFi and open networks as well. I call shenanigans. I went ahead and flashed back to 10d anyway though.
BreakingVZW said:
Thanks for the reply. So it turned out my phone just randomly decided it doesn't like my work network anymore. Idk why lol. I got home and it hooked right into WiFi. Gf's WiFi and open networks as well. I call shenanigans. I went ahead and flashed back to 10d anyway though.
Click to expand...
Click to collapse
I am having the same issue! But it is happening in other networks too...sometimes I get the phone to connect but it only works for a while and when I check the networks it only says Saved, even if I try to connect again
Having the same issue, whether at work or home, my wifi has become near useless. I've even gone as far as trying a different ROM. Didn't work.
Same thing here
I also have tried factory reset, installed a new ROM, changed settings in my router... but the problem remains I don't know what to do anymore, I use wifi a lot!! I searched through other topics but no one seem to know how to solve it. Unfortunately my warranty already expired, I took my phone to some technicians but honestly it didn't help at all...they all said it was a software bug and I should wait for an update but if it was just that a new ROM would fix it,right?
I am not very familiar with phone hardware but I assume that if it was a hardware problem I wouldn't be able to turn it on or connect to any network, right?? (any experts here???)
Any solution is welcomed.
anyone please?? :crying:
P.S : I tried a new baseband, new kernel and new ROMs. So far, nothing changed.
I can connect sometimes but get kicked out within minutes. At other times I only get the saved,secured message.
This is happening in every network

Wifi slowdowns, come and go. What to do?

Just got a used replacement M8 and Wifi download speeds won't break about 2Mbps most of the time!!! Upload speeds seem unaffected (but they are slow anyways here @ 4Mbps) All my other phones/pcs would run about 32-33Mbps/4 on wireless via my 35Mbps connection, *including my old M8.* Seller told me its never been rooted and is stock.
I noticed if I turn airplane mode on and then off, the wifi download speeds return to normal for a short while, then revert to the <2Mbps downloads. I have tried factory reset of both wifi router and phone. Clearing cache on phone, power settings, NFC/BT on/off, etc, etc, to no avail... I am running Android 6.0 (6.13.631.7)
I'd love to figure this out. This phone is mint that I got and this is the only issue, so would hate to get rid of it due to this.
Thanks if anyone has any ideas...
Anyone?
I could use some ideas.
Not sure if I want to keep the phone if it's gonna slow down so bad on wifi all the time...
I bought the phone on Swappa, and between them not responding what so ever to my concerns and zero replies here, I don't think I'll keep this phone. Don't know what else to do...

TMobile Losing Signal

I recently got a P3XL from B&H. It was Android 9 out of the box. The first thing I did was unlock the bootloader. Then I fully upgrade to Android 11 with May and rooted with the latest Magisk (v23). I want to use it as a secondary WAN for my home internet using USB tethering. I installed a battery charge app to keep it at 80% and set to auto USB tether in developer tools. Everything seems fine, but it loses signal every hour. Only a reboot is able to get signal back. I tried toggling airplane mode, mobile data, disabling all battery saver options, clearing network, clearing cache, and changing SIM. The data seems to last longer when I uninstalled Magisk, but It still goes out. My Nexus 5 has been going strong with this setup for years. I also tried using Automate to reboot when it loses signal, but sometimes the phone justs shuts down after the reboot command. Next Ill try: factory reset, flash image (if uninstalling Magisk left stuff), change line SIM, check mobile data when not usb tethered, convert to eSIM, or make a keep alive script. Any other suggestions is appreciated. I hope I dont have to exchange/return it. Thanks.
I recently picked one of these up and I'm having trouble with dropped signal as well. I have to airplane mode to get any signal at all when it happens. I'm thinking about flashing the factory image with the radio to see if that helps, did you find another solution?
sillycat98 said:
I recently picked one of these up and I'm having trouble with dropped signal as well. I have to airplane mode to get any signal at all when it happens. I'm thinking about flashing the factory image with the radio to see if that helps, did you find another solution?
Click to expand...
Click to collapse
I have tried anything yet, but Ill keep this thread updated.
I tried it last night, it didn't help. I'm returning mine.
sillycat98 said:
I tried it last night, it didn't help. I'm returning mine.
Click to expand...
Click to collapse
Where did you puchase yours?
Swappa, I'm looking at a OnePlus 6T instead.
I finally got it working. I think my issue is the long use of USB tethering. On the latest Android 11 and 10 images, it would lose signal after an hour or so. Signal is restored when I disconnect it from USB. It works as expected with the latest Android 9 image. Mobile signal was still connected overnight with USB tethering enabled. It sucks that it will be two versions of Android behind. Im not sure if it was a security month patch or the baseline that nerfed USB tethering, but I dont plan to try each Android 10/11 image. I sent feedback to Google and hopefully it will be fixed by the final update for this phone. Ill try it again when the final image is released.

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