[Q] P6200 Wifi keep scan & toggle after ics upgrade >_< - Galaxy Tab General

I have upgraded through MobileOdin ytd night, to ics
But afterwards, I can nv make my wifi works...
I have three router at home, it can scan them out initially,
but then it will scan again, and showed them "not in range"
so I can nv connect any of them even i typed in necessary security parameters...
I return office and try...still not working...
Occasionally, more serious situation, like the wifi switch keeps toggling itself on and off...= =
I have no idea why it would be like this...
And what should I do to recover it??
THank you all so much~~~

1) This is Galaxy Tab 7" Original forum (P1000)
2) ask in Q&A section of the right forum

Related

[Q] Galaxy S4 Wifi Issues

Hello,
I've already searched the forum for an answer but I've been unable to find any solution.
I have a GT-i9505 Galaxy S4 with Omega ROM. I though flashing a new rom will help me but it's the same.
Everytime I walk away from my router, it automatically sets the wifi as "Network disabled because internet connection is slow" and won't connect again. I have to manually click connect to force it to connect it. Also, when I'm in my University, it keeps disconnecting for the same.
How can I avoid this and force it to stay connected? Do I need to flash some custom modem or something?
Thanks
The answer!
baicunko said:
Hello,
I've already searched the forum for an answer but I've been unable to find any solution.
I have a GT-i9505 Galaxy S4 with Omega ROM. I though flashing a new rom will help me but it's the same.
Everytime I walk away from my router, it automatically sets the wifi as "Network disabled because internet connection is slow" and won't connect again. I have to manually click connect to force it to connect it. Also, when I'm in my University, it keeps disconnecting for the same.
How can I avoid this and force it to stay connected? Do I need to flash some custom modem or something?
Thanks
Click to expand...
Click to collapse
Check the wifi setting then go to advanced setting and uncheck the "Auto network switch" dialog box. Then Thats it. That's my problem too when i update my samsung s4 - Jelly Bean 4.3.I hope i helped you in this little issue. God Bless! :good:
i tried it but still...
rhyden_21 said:
Check the wifi setting then go to advanced setting and uncheck the "Auto network switch" dialog box. Then Thats it. That's my problem too when i update my samsung s4 - Jelly Bean 4.3.I hope i helped you in this little issue. God Bless! :good:
Click to expand...
Click to collapse
its still keeps on happening sir. This started when i used trulyclean
hammerthumbs said:
its still keeps on happening sir. This started when i used trulyclean
Click to expand...
Click to collapse
TRY THESE STEPS
1) Settings => Connections and tap Wi-Fi. Then tap Menu and make sure Keep Wi-Fi on during sleep is set to Always.
2) Turn off Wi-Fi power save mode on your S4. Type *#0011# on the phone dialer, then Menu => Wi-Fi and turn Wi-Fi power save mode to Off. (WORKED FOR ME)
3) Or change your router settings to 802.11 model
Galaxy S4 wifi non-connection/drop out NEW FIX
Had a problem for ages with my S4 not connecting to wifi and therefore no internet, no updates etc. My router is a Netcomm NB6Plus4Wn but this may work with most routers.
It would constantly go through the authentication, secured/saved cycle but rarely actually got an ip address.
After trial and error I found this worked straight away and it is a very easy fix.
Go to your router settings page, then wireless settings, look for Primary Channel setting.
There may be a (Lower/Upper selection) - tick the LOWER radio button and apply changes. Let router reboot.
Note I also use WPA/TKIP settings for security.
Test your S4.
Mine was set to Upper Primary Channel previously and as soon as I changed that setting to Lower Channel wifi and internet worked immediately.
I hope this helps some people with this common problem as I know how frustrating it can be.
Cheers
wifi verification problem
galaxy s4 GT-I9500 running pac-man rom. just started getting verification problem connecting to my linksys router one foot from my phone.
did the following on my phone: settings, Wi-Fi, settings, wps pin entry, msg reads " enter pin xxxxxxxxxx on your Wi-Fi router." where xxxxxxxxx is a number.
logged on to my router, clicked on Wi-Fi tab, under Wi-Fi protected setup, it asked me to enter the wps pin number from my phone. I did and after a minute or so, it indicated success and now my phone connects to Wi-Fi
weird. my phone connected for months without this procedure but just started failing today. thanks to the one who suggested checking the router setup.
wi-fi fix for samsung sph-720 or S4
baicunko said:
Hello,
I've already searched the forum for an answer but I've been unable to find any solution.
I have a GT-i9505 Galaxy S4 with Omega ROM. I though flashing a new rom will help me but it's the same.
Everytime I walk away from my router, it automatically sets the wifi as "Network disabled because internet connection is slow" and won't connect again. I have to manually click connect to force it to connect it. Also, when I'm in my University, it keeps disconnecting for the same.
How can I avoid this and force it to stay connected? Do I need to flash some custom modem or something?
Thanks
Click to expand...
Click to collapse
I recently ran into the same problem and my wi-fi button wouldn't come on no matter what I did. Finally, I took the phone to Best buy as the now have a Samsung store there and the guy reflashed my phone with the 4.3 update free of charge and it worked. When I got home I rooted over my phone and now my wifi works fine. Hope this helps.
my solution
baicunko said:
Hello,
I've already searched the forum for an answer but I've been unable to find any solution.
I have a GT-i9505 Galaxy S4 with Omega ROM. I though flashing a new rom will help me but it's the same.
Everytime I walk away from my router, it automatically sets the wifi as "Network disabled because internet connection is slow" and won't connect again. I have to manually click connect to force it to connect it. Also, when I'm in my University, it keeps disconnecting for the same.
How can I avoid this and force it to stay connected? Do I need to flash some custom modem or something?
Thanks
Click to expand...
Click to collapse
I tried everything nothing would help until i decided to download the 4.4.2 firmware from sammobile firmwares wat will automatically gives you the latest modem en bootloader and then instal any Custom rom and you Wifi will work . Hope that it will help you
Thank u neatearth
neatearth said:
TRY THESE STEPS
1) Settings => Connections and tap Wi-Fi. Then tap Menu and make sure Keep Wi-Fi on during sleep is set to Always.
2) Turn off Wi-Fi power save mode on your S4. Type *#0011# on the phone dialer, then Menu => Wi-Fi and turn Wi-Fi power save mode to Off. (WORKED FOR ME)
3) Or change your router settings to 802.11 model
Click to expand...
Click to collapse
I would like to thank u neatearth for these great info
mac adress unavailable HELP
so i rotted my s4 gt9500 and somehow it managed to lose it's mac adress says unavailable at the moment unfortunately i have no efs backup so iam on a stalemate here i really need to get back my mac adress somehow so that the wi fi works again properly.any help you really be appreciated.
p.s the phone does not work on a custom rom yet since i encoutered this problem and want to fix it first.

[Q] New S5 not automatically connecting to WiFi

Hello everyone,
Last week I upgraded my S4 to a brand new S5 on T-Mobile and currently it's stock and unrooted. It works great, except it won't automatically connect to WiFi. Every time I encounter a known WiFi it'll say Sign in Required. I'll press Connect and it'll then connect and function perfectly.
This smells like a software bug to me, but then I'd expect more posts on this topic (I didn't see any posts on XDA, and posts elsewhere were unhelpful).
What I'd ultimately like to know is if this is a hardware defect and I should get my phone replaced before it's too late, or if this is something that a software update (or rooting and flashing) will fix. Or of course it could be neither...
Thanks!
I have the same probblem and I am dying for a solution. I've spent hours googling and testing different things to no avail.
I am going to try to bring as much detail as I can, hopefully someone can pitch in.
Things I have read might work:
"forgetting" the connection and recreating it
Turning off and turning back on
Turning off, removing the battery
Turning off, removing the battery and the sim and waiting a minute (seems like voodoo to me)
Factory reset
I've tried everything, bar the factory reset which I am reluctant to do, specially when people's answers on forums said it wasn't a solution.
To try and shed more light, I would also add that:
It does this with any network (so it's not channel/router issue)
It does this consistently (and since I got my phone)
It finds networks, but just won't connect
It always connects fine if I pick the network (so it's not a distance/bad reception issue)
My phone is unrooted and stock and I have no weird apps (only popular/regular ones, social media, news, and so on)
My options are set correctly (notifications for open networks is checked and wifi is on)
I really hope someone can help as I rely on wifi a lot, and this is kind of a deal-breaker for me.
So I found a psuedo-fix here: http://forum.xda-developers.com/showthread.php?t=2723486
The key part being:
1. >Wifi >Advanced >Disable (uncheck) Smart network switch.
2. Forget connection, then establish connection again. Works no issues.
Click to expand...
Click to collapse
This has "fixed" it for me, but it also means I no longer have Smart Network Switch which is kinda annoying, albeit less annoying.
A true solution would be lovely.
ForestHunter said:
So I found a psuedo-fix here: http://forum.xda-developers.com/showthread.php?t=2723486...
Click to expand...
Click to collapse
Tried, didn't work for me.
I now have factory reset and let google reinstall all my apps.
Until now, auto-connect works.
The only thing I didn't do this time that I did last time is deactivate a bunch of samsung apps that come pre-installed.
wi-fi won't auto connect to S5
ForestHunter said:
Hello everyone,
Last week I upgraded my S4 to a brand new S5 on T-Mobile and currently it's stock and unrooted. It works great, except it won't automatically connect to WiFi. Every time I encounter a known WiFi it'll say Sign in Required. I'll press Connect and it'll then connect and function perfectly.
This smells like a software bug to me, but then I'd expect more posts on this topic (I didn't see any posts on XDA, and posts elsewhere were unhelpful).
What I'd ultimately like to know is if this is a hardware defect and I should get my phone replaced before it's too late, or if this is something that a software update (or rooting and flashing) will fix. Or of course it could be neither...
Thanks!
Click to expand...
Click to collapse
I have been having the same issue. I can't get any answers either. It really is frustrating. I am going to keep trying to find out. When I called the T-Mobile store they said that I could bring it back w/in the 14 days & replace it and I may do that if I can't get an answer for the problem! If you happen to find out what the answer is PLEASE post and let us know! Thanks
My wife has the same issue with not auto connecting. She has a AT&T S5 that is not rooted....thanks to AT&T putting her in prison lockdown. I think it could be something with the last update because her phone used to auto connect just fine and now it doesn't. The strange thing is that she just now noticed it not connecting and she had took an update that was a few weeks ago or whenever it actually was and now we don't really know for sure if it's really just now an issue or has been since the update....imo I think it could be something with the update.
I have an S5 as well with no issues, but then again, I have the TMO that's rooted and carrier unlocked running custom rom.....thanks TMO for not being D***'s like at&t
Solution!
Long story short, there's a problem with Android and DHCP. Specifically, an IP associated with a router doesn't die when it should and attempting another connection goes back to this IP instead of using the correct (new) IP.
The good news is to forget the problematic wifi connection, head into /data/misc/dhcp/ and remove the files, reboot then connect to wifi. That flushes the DHCP lease information and life should be good.
omarriachi said:
Long story short, there's a problem with Android and DHCP. Specifically, an IP associated with a router doesn't die when it should and attempting another connection goes back to this IP instead of using the correct (new) IP.
The good news is to forget the problematic wifi connection, head into /data/misc/dhcp/ and remove the files, reboot then connect to wifi. That flushes the DHCP lease information and life should be good.
Click to expand...
Click to collapse
I seem to be having this problem now, however I tried doing what you suggested and I don't have the path you mentioned, how do you get to it?
cgdart said:
I seem to be having this problem now, however I tried doing what you suggested and I don't have the path you mentioned, how do you get to it?
Click to expand...
Click to collapse
use a program like "root explorer" or "ES file explorer" and navigate to your root folder ( / )
then follow the path /data/misc/dhcp/ , you will find the files i mentioned there.
omarriachi said:
Long story short, there's a problem with Android and DHCP. Specifically, an IP associated with a router doesn't die when it should and attempting another connection goes back to this IP instead of using the correct (new) IP.
The good news is to forget the problematic wifi connection, head into /data/misc/dhcp/ and remove the files, reboot then connect to wifi. That flushes the DHCP lease information and life should be good.
Click to expand...
Click to collapse
Im reviving this thread, I have this issue also. And with my "unlimited" tmobile bandwidth of 2gb, this bug is completely screwing me over.
I quoted this post since you just claim its Android and DHCP, if thats the case, wouldnt all android phones just not work like the S5?
omarriachi said:
Long story short, there's a problem with Android and DHCP. Specifically, an IP associated with a router doesn't die when it should and attempting another connection goes back to this IP instead of using the correct (new) IP.
The good news is to forget the problematic wifi connection, head into /data/misc/dhcp/ and remove the files, reboot then connect to wifi. That flushes the DHCP lease information and life should be good.
Click to expand...
Click to collapse
Finally..it's work for me..tqvm
Hey I'm having the same issue, only with my work open wifi. The phone will be aware there is a wifi and it tells me to sign in. I go to the wifi settings and tell it to connect it does, but if it drops for any reason it won't automatically connect again, I have to go through the same thing every time.
I read this in a previous post:
"use a program like "root explorer" or "ES file explorer" and navigate to your root folder ( / )
then follow the path /data/misc/dhcp/ , you will find the files i mentioned there."
I have X-plore and went to the root/data folder, but there was nothing in the data folder - Do you have to be rooted for this to work?
Any help would be appreciated.
Samsung Galaxy S5 - Koodo - Unrooted
solved mine by follow this guide
http://forum.xda-developers.com/showthread.php?t=2547356
Sent from my SM-N9005 using Tapatalk
It works fine on my home network and others that I have a username and password for. The issue is WIFI hotspots at coffee shops and work and such, where I don't have access to the router settings.
I have an app that does an auto login when it recognizes that you need to sign in once it connects to wifi, and it works when I tell the phone to connect, but the phone will never connect automatically - I have to go into the WIFI settings and tell it to connect manually every time.
I have the 'Smart Network Switch" unchecked, and I have 'forgotten' and reconnected several times but it still happens.
Samsung Galaxy S5 (SM-G900W8)- Koodo - Unrooted
omarriachi said:
Long story short, there's a problem with Android and DHCP. Specifically, an IP associated with a router doesn't die when it should and attempting another connection goes back to this IP instead of using the correct (new) IP.
The good news is to forget the problematic wifi connection, head into /data/misc/dhcp/ and remove the files, reboot then connect to wifi. That flushes the DHCP lease information and life should be good.
Click to expand...
Click to collapse
Thanks. This solved my problem ?
I had a corrupt .keystore on my S5 and the fix I found by googling was to do a reset of the device.

S5 Keeps Disconnecting WIFI

Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people
Godmyster said:
Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people
Click to expand...
Click to collapse
I do not have the issue, but maybe you can try this.
1. Open phone dialer (Phone App)
2. Dial *#0011#
3. The ServiceMode screen will be open. When it is open. Tap on menu button on top right.
4. Select "WiFi"
5. Find "WiFi Power Save Mode"
6. Press the "ON" button to turn the "WiFi Power Save Mode" off. (It will show as "OFF" if it is off)
7. Your WiFi will be off and on again.
8. Try to reconnect to the Wifi.
This didnt work still the same
Godmyster said:
This didnt work still the same
Click to expand...
Click to collapse
You haven't got smart network switch turned on? (under WiFI settings) it'll do that if it thinks you WiFI connection isn't stable.
Godmyster said:
This didnt work still the same
Click to expand...
Click to collapse
Set Google public DNS in your router
Ok i just found out its only doing it at home, i tried wifi and my work and it works perfectly doesnt disconnect and connect, but at home it does, though it never did it before and i didnt change or do anything to my router or my phone which i find very strange.
thanks for the help guys i appreciate it a lot, does anyone know what i can do?
have you found a fix to this yet? I'm having the same issue and getting ready to just return the phone and buy something else. My home network is fine, the other tablets, phones, laptops are having 0 issues, Yet my GS5 is either dropping or something, it seems to run horrible slow and things just time out.
Godmyster said:
does anyone know what i can do?
Click to expand...
Click to collapse
No, and the reason that we don't know is that you didn't provide any useful details about your situation.
If you think that someone can do more than make a random guess implies that you think that there are only one or two possible causes. But most issues, including this one, have hundreds of possible causes. So random guesses are not terribly useful. Nor are we psychic, so the only way to efficiently narrow it down is to look for anomolies in your configuration. Which you haven't described.
You should be providing as much technical detail as possible, e.g. what is your home router model & it's firmware version and configuration details, phone firmware version, any specific error messages, any observed pattern, a logcat if you can and anything else that seems relevant.
Godmyster said:
Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people
Click to expand...
Click to collapse
Have you tried changing the channel on your router?
Sent from my Nexus 7 using Tapatalk
Change the router channel
Change the router SSID
Default the router comfiguration
Change the router operating mode
Update the router firmware
Move the router to a different location
Use a different router
Unplug your neighbours new 50,000 watt pirate radio station
Update your phone firmware
Buy a different phone
Sacrifice a piece of triple chocolate gnocche cake to the pagan God of chocolate and wifi
All random guesses with roughly equivalent (and small) chances of success.
Or one could try troubleshooting the issue methodically.
.
Solution
Godmyster said:
Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people
Click to expand...
Click to collapse
Hey guys,
I had this problem before, This is an issue with your samsung device and your ISP. They aren't compatible with each other.
Solution:
You must just block clients3.google.com in your modem/router. You can use Block Web Sites section in your modem/router.
Every thing has a solution.
Enjoy your device WIFI.
IranDev said:
Hey guys,
I had this problem before, This is an issue with your samsung device and your ISP. They aren't compatible with each other.
Solution:
You must just block clients3.google.com in your modem/router. You can use Block Web Sites section in your modem/router.
Every thing has a solution.
Enjoy your device WIFI.
Click to expand...
Click to collapse
I have teh same issue on my S5 Cricket. The WIFI does NOT disconnect. Its connected however I don't have internet connection. Turning the WIFI on and OFF fixes the issue, for a short while until it happens again in an hour. Sometimes I slick on a link and wait and wait just to find out the darn WIFI is not connected to the internet. (probably not even connected to my router properly eg, I cant see my laptop shared drives for example).
This has something to do with saving battery or somthing. WIFI internals shut down, even though the icon on top of the screen still shows I'm connected.
Smart Network Switch
Godmyster said:
Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people
Click to expand...
Click to collapse
Your phone thinks that your WiFi is unstable and dumps the connection to go back to 4g. Why exactly, who knows, but it's easy to turn off the "smart" network switch. Simply hold down the WiFi icon for 2 seconds to get into the connections section. Right there at the top is the smart network switch section ... just uncheck the selection box. Easy.
Lastly, people like fffft need to get over themselves. The fix for the original poster's question was easy, but since fffft didn't know it, he decided to instead attack in order to make himself feel superior. How sad and pathetic does someone have to be to troll forums looking for opportunities to attack and belittle someone else?
minin0la said:
I do not have the issue, but maybe you can try this.
1. Open phone dialer (Phone App)
2. Dial *#0011#
3. The ServiceMode screen will be open. When it is open. Tap on menu button on top right.
4. Select "WiFi"
5. Find "WiFi Power Save Mode"
6. Press the "ON" button to turn the "WiFi Power Save Mode" off. (It will show as "OFF" if it is off)
7. Your WiFi will be off and on again.
8. Try to reconnect to the Wifi.
Click to expand...
Click to collapse
The issue is resolved simply by going to the advanced settings in Wifi and disabling 'Always allow scanning'.
Hope this helps.
same issue with my s5
Airax said:
You haven't got smart network switch turned on? (under WiFI settings) it'll do that if it thinks you WiFI connection isn't stable.
Click to expand...
Click to collapse
I had the same issue. I just tried the suggestion, turning of smart network switch in the wifi-advanced menu. Seems to be working so far!
Thanks!
Well I know that Smart Network is turning off wifi.. problem is that i have a fiber at home!! So what kind of problem smart network finds on my broadband?? ?
solution to wifi disconnect problem
I was looking for an answer to a different wi-fi question when I saw this.
I'm on AT&T with my S5.
Under the Wi-Fi settings I have an option for "Smart Network Switch" which says it Automatically switches between Wi-Fi and mobile networks to maintain a stable internet connection. Anytime a computer says it automatically does something for me; I typically say no thanks. I don't typically like my devices making assumptions of what I like, don't like or want to do. So I have that option unchecked. I never have an issue with the network stability once I've connected to a specific wi-fi connection.
Not sure if that will help you all or not. But thought I'd share.
so under Settings --> Quick Settings --> Wi-Fi you will find a check box option named "Smart network switch", untick it, this should take care of the problem.
leon.
Same problem
Hi, I have the same problem. Here some info:
- Device: Samsung Galaxy S5 (SM-G900F), Stock, not rooted
- Android version: 5.0
- Kernel version: 3.4.0-5640614 (2015-09-01)
- 'Smart network switch' is turned off
- 'Always allow scanning' is disabled
The problem started 2-3 days ago. When I turn on WiFi/WLAN the phone constantly turns it back off and on again. Didn't happen before, didn't change anything on the router (I have no access to it ) and didn't install a new app (as far as I can remember). I don't know if it only happens on this access point.
I made a log file (adb logcat) but am not sure if it contains sensitive information, is it save to share online?
The logcat doesn't contain any sensitive passwords.
816-8055 said:
Hi, I have the same problem. Here some info:
- Device: Samsung Galaxy S5 (SM-G900F), Stock, not rooted
- Android version: 5.0
- Kernel version: 3.4.0-5640614 (2015-09-01)
- 'Smart network switch' is turned off
- 'Always allow scanning' is disabled
The problem started 2-3 days ago. When I turn on WiFi/WLAN the phone constantly turns it back off and on again. Didn't happen before, didn't change anything on the router (I have no access to it ) and didn't install a new app (as far as I can remember). I don't know if it only happens on this access point.
I made a log file (adb logcat) but am not sure if it contains sensitive information, is it save to share online?
Click to expand...
Click to collapse
I'm have the exact same problem.
Samsung Galaxy S5 (SM-G900T)
CyanogenMod (13.0-20151203)
Android 6.0 (Marshmallow)
Baseband (G900TUVU1ANE6)
Smart network switch: disabled
Always allow scanning: disabled
What's happening is as soon as my Wi-Fi finishes authenticating and connects, it is immediately disconnected and tries again. No other devices in my house are having any issues, so that eliminates the router. When I factory reset my phone the Wi-Fi begins to work again, so that eliminates my phones hardware. The confusing part is that I installed a bunch of apps such as AdGuard that could possibly cause an issue but everything worked and this started out of nowhere. Also, I factory reset my phone AGAIN and AGAIN, everything worked and out of nowhere while I was looking at my screen while idling, I watched as the Wi-Fi connection dropped and began the disconnect/reconnect loop...
I'm assuming it has to be a software issue because it only started when I updated to a newer Cyanogen. I'm about to test if other Wi-Fi networks have this problem and I'm also going to look through and post a log.
If anyone has any questions or suggestions that may lead to a fix, PLEASE help!
Thanks
Well I factory reset again, this time wiping the internal storage and everything is now fine. I did look at my logcat and there were Wi-Fi errors but I forgot to post them...

Samsung S4 I9505 Can't see any wifi networks

I have a Samung Galaxy S4, GT-I9505, Android Version 7.1.2, using LineageOS 14.1-20180309-NIGHTLY-jfltexx. Baseband version: I9505XXSPQA1. Kernel version 3.4.112-Lineage-ge8d93e0
It has worked fine for months. But on the 1st of July, while a friend was borrowing it, it was all of a sudden unable to see any wifi networks. My friend doesn't know what he did to it as he was just trying to connect his wifi. Now I can't find ANY wifi networks. None at all! All other devices in the house can find and connect to wifi networks and to the home wifi network.
I've tried the following:
1) Restarting the phone
2) Turning on airplane mode and looking for wifi networks.
3) Restarting the router
4) Factory resetting the phone
5) Flashing the same Lineage OS version from the SD card using TWRP.
6) Removing the battery for 1 minute and putting it back in and restarting the phone.
What happens normally?
I go into wifi settings by pressing and holding down on the wifi icon in the notification tray. When I get there, there is a blue moving bar near the top which makes it seem as if it is searching for a network. I still attempt to turn on the wifi using the switch to the top right. There's a message in the middle of the screen saying "Turning Wi-Fi on …" And then it searches and searches. Eventually the "on" and the wifi switch get greyed out and are unresponsive to any touch, but there is a moving blue bar just under it that makes it seem as if it is still searching, but it sees none. If I wait long enough and the phone screen times out and I turn it back on, in wifi settings, at the top it says "off" but the blue bar under it is still moving as if it is searching. If I press the switch, the same thing happens.
If I got into "Configure Wifi" the MAC address is set to 02:00:00:00:00:00 and the IP address is "Unavailable".
Doing all this gives me the impression that it is a hardware issue, not a software one.
But I'm wondering if there are any solutions that I haven't tried, or is there agreement that it is most likely a hardware issue.
My wife took it to a local market to see if they could fix it. The guy went to the TWRP app that was installed and claimed that somehow it had been used to delete the wifi software. It didn't seem right or likely. I don't think he knew what he was talking about.
Can anyone help at all please?
get a new phone lol serranoltexx is old
@amenyahu
Hello, If you have any FULL Backup include EFS, preload etc. Restore. If you don't have backup, you can try flash STOCK ROM using for ex. samfirm - https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647
Also you can use one of thread https://forums.oneplus.com/threads/...-02-00-00-00-00-00-after-3-5-5-update.480733/
Let me know if there is any progress.

Is my wifi chip (hardware) broken? (Lenovo A7600-F)

Hey,
I recently got a used Lenovo A7600-F tablet from my office because they weren't using it anyways.
Everything seems to work perfectly fine - except the wifi connection.
Code:
Model: Lenovo A7600-F
Android: 4.4.2 (no further update available for that model)
Kernel: 3.4.67
Build: A7600F_A442_000_029_150401_ROW
Here is the thing:
I disable/enable wifi
I click my home network and enter the password
Nothing happens for ~2 seconds
"Failed to connect to network" (no "connecting" or similar)
To make sure my WPA2 security isn't the problem, I made an unprotected hotspot on my phone. Absolutely identical problem.
One thing I noticed: The tablet is able to find all the networks around me and updates their signal strength in the list without any problems. As soon as I try to connect to one, it takes around 2 seconds until it says "Failed to connect to network". If I then try again, the message pops up instantly with no delay for all networks. From that moment on, the list also stops updating and can't be refreshed until I turn my wifi off and on again.
I downloaded "Wifi Analyzer" and I can see all the networks' strength values moving. I can close the app, do something else or go to standby and come back to see the values still updating. But as soon as I try to connect to a network, it will give that error again, stop updating the list in the wifi section and Wifi Analyzer will not be able to find any more signals. If I close that app and bring it back up now, the list of networks will remain empty. Same with the networklist on the wifi settings. Turning wifi off and on again resets the whole thing.
In short: My tablet sees all networks around me and updates them, but gives an error ("Failed to connect to network") as soon as I try to connect. Then no more wifi updates until i disable/enable it again.
Factory reset did not help, I let the battery drain and charged it back up - no success! I also tried an app called "Wifi Ruler", which was mentioned to fix a similar problem in a post I found on another forum. Connecting through that has exactly the same effect.
Does anybody have an idea about what is going wrong and what else I could try to fix this?

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