A71 not connecting/detecting 5ghz on WiFi (only 2.4ghz) - Samsung Galaxy A71 Guides, News, & Discussion

Phone model: Samsung Galaxy A71 SM-A715F/DS
Recently updated to One UI 3.1, Android 11, Google play update March 1 2021
Country: Philippines
As the title says, my phone out of nowhere couldn't detect any 5ghz on wifi. I don't know how long this has been because I don't check what wifi I'm connected to. As long as I was connected, I wasn't worried. But today I discovered it's been connecting to the 2.4 band of my wifi.
We have lots of other devices in the house and all of them detect the 5ghz band. all of them have no connection issues with that. only this phone. I'm not sure if this has something to do with the recent update, but I have a feeling it's because of that.
Things I've already tried:
Restarting the router.
Restarting my phone several times.
Restarting my phone in safe mode. still nada.
Wiping cache partition in recovery mode.
resetting network settings (using the reset option in settings)
disabling vpns/adguards etc.
enabling option in hotspot to prefer 5g bands.
All of them and still nothing. The only thing I haven't tried is doing hard reset or factory reset because I got lots of important stuff and settings already in my phone. I hope it won't get to that point.
Please help, seriously. Thanks very much!

bebotette said:
Phone model: Samsung Galaxy A71 SM-A715F/DS
Recently updated to One UI 3.1, Android 11, Google play update March 1 2021
Country: Philippines
As the title says, my phone out of nowhere couldn't detect any 5ghz on wifi. I don't know how long this has been because I don't check what wifi I'm connected to. As long as I was connected, I wasn't worried. But today I discovered it's been connecting to the 2.4 band of my wifi.
We have lots of other devices in the house and all of them detect the 5ghz band. all of them have no connection issues with that. only this phone. I'm not sure if this has something to do with the recent update, but I have a feeling it's because of that.
Things I've already tried:
Restarting the router.
Restarting my phone several times.
Restarting my phone in safe mode. still nada.
Wiping cache partition in recovery mode.
resetting network settings (using the reset option in settings)
disabling vpns/adguards etc.
enabling option in hotspot to prefer 5g bands.
All of them and still nothing. The only thing I haven't tried is doing hard reset or factory reset because I got lots of important stuff and settings already in my phone. I hope it won't get to that point.
Please help, seriously. Thanks very much!
Click to expand...
Click to collapse
Try to reflash the stock firmware again... Without doing a factory reset.
Hopefully this can help.

Related

[Q] T-325 NK1 firmware Wifi problem

Hi
I installed the new NK1 firmware on my t-325 and since then my inernet connection keeps dropping with "AP currently not in use. Internet connection too slow" message. The internet connection is obviously not slow and signal strength is maxed out. Is there anything I can do ? I have already regretted upgrading. :crying:
pallcsa said:
Hi
I installed the new NK1 firmware on my t-325 and since then my inernet connection keeps dropping with "AP currently not in use. Internet connection too slow" message. The internet connection is obviously not slow and signal strength is maxed out. Is there anything I can do ? I have already regretted upgrading. :crying:
Click to expand...
Click to collapse
I have the sm-t320 also on the NK1 firmware but I haven't experienced any wifi dropouts , but I did a clean install by doing a factory reset, have you tried to remove the AP and re-add it back in?
To remove the network go to Settings - Wi-Fi - Long Press on the AP and press "Forget network" , then refresh networks and re-connect to it, or if SSID is hidden scroll down and click Add Wi-Fi netwrok.
otyg said:
I have the sm-t320 also on the NK1 firmware but I haven't experienced any wifi dropouts , but I did a clean install by doing a factory reset, have you tried to remove the AP and re-add it back in?
To remove the network go to Settings - Wi-Fi - Long Press on the AP and press "Forget network" , then refresh networks and re-connect to it, or if SSID is hidden scroll down and click Add Wi-Fi netwrok.
Click to expand...
Click to collapse
Yes, I tried everything but to no avail. I even selected another channel on the router. My wife has the same tablet with the older firmware and everything is fine by her.
It seems that I need to roll back to the previous firmware but I don't know how to start it since I have never had a Samsung before. I downloaded the original firmware, Odin v3.9 and installed Kies to have the necessary drivers. I don't want to brick my device, so is there anything I need to be aware of before I start flashing ?

[Q] Unable to connect to secured wifi networks.

Hello!
This began about a month ago. I was using Lollipop 5.0 and had absolutely no problems with my phone until one day, all of a sudden I wasn't able to connect to my home wifi network. I enter the password and it just says saved,secured. Then I discovered I was unable to connect to any secured wifi network. I tried soft and hard restarting my phone, restarting my router, forgetting my home network and trying to reconnect, I tried clearing my Google services frame work data, and still nothing.
I finally decided to downgrade to Kit Kat and did a factory reset and loaded a stock version; no dice, I still was not able to connect to secured wifi networks. I tried rooting my device and deleting wpa_supplicants.conf, still back to square one.
I find that I am able to connect to unsecured wifi networks.
Im at my wits end, I really do not know what to do. Please help.
tsp
thestonedphilosopher said:
Hello!
This began about a month ago. I was using Lollipop 5.0 and had absolutely no problems with my phone until one day, all of a sudden I wasn't able to connect to my home wifi network. I enter the password and it just says saved,secured. Then I discovered I was unable to connect to any secured wifi network. I tried soft and hard restarting my phone, restarting my router, forgetting my home network and trying to reconnect, I tried clearing my Google services frame work data, and still nothing.
I finally decided to downgrade to Kit Kat and did a factory reset and loaded a stock version; no dice, I still was not able to connect to secured wifi networks. I tried rooting my device and deleting wpa_supplicants.conf, still back to square one.
I find that I am able to connect to unsecured wifi networks.
Im at my wits end, I really do not know what to do. Please help.
tsp
Click to expand...
Click to collapse
I think it's very normal you cant connect to secured networks,why do you think ,they are secured? :laugh:
ludoke said:
I think it's very normal you cant connect to secured networks,why do you think ,they are secured? :laugh:
Click to expand...
Click to collapse
These are known networks that I have the passwords for.
Same problem on lg g3 6.0...
Saved,secured but not connecting.
any fix for that ?

[Q] GT-N5110 Wifi not working after OTA upgrade to Kitkat 4.4.2

I have upgraded from Jelly Beans to Kitkat 4.4.2 via regular OTA upgrade provided by Samsung on my Samsung Note 8" GT-N5110. Since then I am unable to use Wifi on it. My device is NOT rooted and is running on original Samsung software upgraded via OTA.
I have tried to clear cache and then factory re-set as well and still can't get the WIFI button to sometime even select available WIFI networks. So issues I am facing are summarized below"
1. After factory re-set and clearing cache via Power+Vol Up option, when I tried to setup from scratch, WIFI would not turn on at all meaning device would not be able to scan for available WIFI network or would do so but after long time and if it does show available Networks and I select my home network with required security (WPA2) and password, it would show status as " Saved" rather than connecting to this network. The device would not connect to selected network even after multiple tries.
2. When trying to turn wifi on, device would not show "WIFI" button to Green but instead would stuck at "Grey" color for ever unless rebooted and re-tried many times. The grey would turn green when selecting advanced option or tabbing thro' back button but would not scan available networks then. If it would scan thro' Networks, it would just save selected network even with correct security option and password for it.
WIFI not turning on has made this device a piece of junk for any meaningful use. Any suggestions/ help would be highly appreciated. Again please note, my device is UNROOTED and running on original firmware provided by Samsung via OTA upgrade.
Hi XDA Gurus,
Any one can direct me to right section that has solution for this issue if it is a repost? or help me get an answer?
Thanks,
R
Anyone find an answer to this?
I ahve had no luck, same exact issue, anyone have any ideas? thanks
shahrit said:
I have upgraded from Jelly Beans to Kitkat 4.4.2 via regular OTA upgrade provided by Samsung on my Samsung Note 8" GT-N5110. Since then I am unable to use Wifi on it. My device is NOT rooted and is running on original Samsung software upgraded via OTA.
I have tried to clear cache and then factory re-set as well and still can't get the WIFI button to sometime even select available WIFI networks. So issues I am facing are summarized below"
1. After factory re-set and clearing cache via Power+Vol Up option, when I tried to setup from scratch, WIFI would not turn on at all meaning device would not be able to scan for available WIFI network or would do so but after long time and if it does show available Networks and I select my home network with required security (WPA2) and password, it would show status as " Saved" rather than connecting to this network. The device would not connect to selected network even after multiple tries.
2. When trying to turn wifi on, device would not show "WIFI" button to Green but instead would stuck at "Grey" color for ever unless rebooted and re-tried many times. The grey would turn green when selecting advanced option or tabbing thro' back button but would not scan available networks then. If it would scan thro' Networks, it would just save selected network even with correct security option and password for it.
WIFI not turning on has made this device a piece of junk for any meaningful use. Any suggestions/ help would be highly appreciated. Again please note, my device is UNROOTED and running on original firmware provided by Samsung via OTA upgrade.
Click to expand...
Click to collapse
If you don't mind... try odin 3.09, flash philz recovery, factory reset for wipe clean for fresh install option, and boot to downloader. Flash a firmware from sam mobile, or the get a usa version in the development section.
That should flash a clean install after a wipe

Wifi not showing any available network

Hi, I am on Stock 4.4.3, unrooted,
I have been using it for some days after flashing factory image,, working fine, I moved from One Country to another, and its not showing me any available wifi network, even I saved one wifi network manually but still its not connecting to it,
any ideas what could be the problem? or how it could be restored, I am thinking of a factory reset again, but just curious what happened here, and what if it repeats even after factory reset,
Check in the advanced wifi settings the frequency band. Is it on automatic?

Anyone having a data roaming issue with Oreo?

Hey all, I'm a Canadian truck driver that has an (unlocked) S7 Active (on T-Mobile) that I've recently upgraded to Oreo via Odin. The phone works better than ever except now when I'm in Canada, network data no longer works properly. I say properly because every once in a while it will connect long enough to receive a few emails then will disconnect again. But most of the time it just doesn't connect. The data roaming worked perfectly on Nougat (BRA7).
Here's what i've done so far:
Clean install of Oreo (CRE7) via Odin 3.13.1
Factory reset via recovery
Cleared Cache via recovery
Data doesn't connect properly.
Downloaded CRE7 again in case it was a bad download.
Repeated the flashing, factory reset, and clearing of the cache just in case something went wrong.
Data still not working properly.
Updated from CRE7 to CRH1
Updated from CRH1 to CRJ1
Cleared cache
Restarted phone, cycled airplane mode, #766#
Data still not working properly
Bought a new SIM thinking that may be the problem. But no change with the data.
And yes mobile data and international data are turned on in the phone.
When I flashed the phone I was at home in Canada. So I thought maybe it would have to connect to a T-Mobile tower to get the proper network settings. So on my next trip to the US, the data worked perfectly in the US once it connected to a T-mobile tower. But once back in Canada it stopped working again.
When I manually try to switch to a Canadian network (Bell, Telus or Rogers), I will get the message "Disconnect Network... Unable to search for networks while data service is in use. Stop using current data service and search for other available networks?" Which I find strange because the phone isn't connected to data.
I have found a temp solution to getting the LTE to work by opening an app that requires location data (in my case it was Weigh My Truck), and that seems to force the phone to connect to the LTE network.
I've bought a 2nd s7 active to have as a spare phone and won't be updating it until Oreo is 100% stable on the S7 active.
Does anyone else have this issue? Is there a permanent fix?

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