Database Develop

[Q] Xperia T disconnects from Wi-Fi automatically.

My Xperia T disconnects from Wi-fi automatically. One minute it is connected and running fine but suddenly it disconnects and shows out of range. Strangely this happens only on stock or stock based rom. Wi-Fi runs fine when running CM10.1. So i guess its not hardware issue. I would use CM10.1 but its so unreliable. I missed several important calls due to sudden reboot in CM10.1 and in stock I cant use my Wi-Fi properly. It disconnects automatically. I have tried every wifi setting combination but none of them work. I am frustrated because of this. I have treid every firmware from from ICS to latest .145. But nothing is helping. Is there some kind of wifi power saver that i can disable or maybe i can update wifi driver in my xperia T. I am in desperate need of solution. Please help me. :crying:

Tough one... have you gone into Settings, then Power Management? There is "extended standby mode" option on my phone that seems like it would turn the wifi off while the phone is idling.
Also, is this on any wifi connection? Or mainly your home wifi? It would be worth having a look at the website of your router's manufacturer to see if there is a new firmware available for your wireless router.
I would like to suggest trying stock firmwares from other regions but I don't know how safe that is. Is your phone an LT30a? LT30p?
Right now I'm using LT30p_9.1_A.1.141_PL on my LT30a (Bell) and wifi is quite solid.

LaZiODROID said:
Tough one... have you gone into Settings, then Power Management? There is "extended standby mode" option on my phone that seems like it would turn the wifi off while the phone is idling.
Also, is this on any wifi connection? Or mainly your home wifi? It would be worth having a look at the website of your router's manufacturer to see if there is a new firmware available for your wireless router.
I would like to suggest trying stock firmwares from other regions but I don't know how safe that is. Is your phone an LT30a? LT30p?
Right now I'm using LT30p_9.1_A.1.141_PL on my LT30a (Bell) and wifi is quite solid.
Click to expand...
Click to collapse
yes the extended stand by mode is unchecked. This happens on every wifi. I have been to my friend's home to check for it. It did same there. My phone is LT30p. thank you, I will try other firmwares as well.

cerisk said:
yes the extended stand by mode is unchecked. This happens on every wifi. I have been to my friend's home to check for it. It did same there. My phone is LT30p. thank you, I will try other firmwares as well.
Click to expand...
Click to collapse
May be you try another firmware to confirm either software or hardware problem
Sent from my LT25i using xda app-developers app

Hi i have same problem...But this is interesting
http://forum.xda-developers.com/showthread.php?p=42861164
It looks like our phone have bad drivers on wifi like Xperia SP...
Only way to solve this is using custom roms,but as you said stability isnt perfect....
Odoslané z Xperia T cez Tapatalk 2

Supersonic335 said:
Hi i have same problem...But this is interesting
http://forum.xda-developers.com/showthread.php?p=42861164
It looks like our phone have bad drivers on wifi like Xperia SP...
Only way to solve this is using custom roms,but as you said stability isnt perfect....
Odoslané z Xperia T cez Tapatalk 2
Click to expand...
Click to collapse
wow !! does firmware of TX work on T ??

Yes but not all functions works,camera is upside down ,autobrightness is broken+ some problems with internal storage and other problems....If someone know how to port wifi drivers from TX than it would be great but for now im using Cyanogenmod because on TX firmware was more bugs than on CM....
Odoslané z Xperia T cez Tapatalk 2

ohh...i would have helped you except I have no idea about android development...best of luck for you...maybe you could contact CM developers try to port wifi module from cm10.1 ...but i dont know if it works....it you find a soultion please let me know

cerisk said:
My Xperia T disconnects from Wi-fi automatically. One minute it is connected and running fine but suddenly it disconnects and shows out of range. Strangely this happens only on stock or stock based rom. Wi-Fi runs fine when running CM10.1. So i guess its not hardware issue. I would use CM10.1 but its so unreliable. I missed several important calls due to sudden reboot in CM10.1 and in stock I cant use my Wi-Fi properly. It disconnects automatically. I have tried every wifi setting combination but none of them work. I am frustrated because of this. I have treid every firmware from from ICS to latest .145. But nothing is helping. Is there some kind of wifi power saver that i can disable or maybe i can update wifi driver in my xperia T. I am in desperate need of solution. Please help me. :crying:
Click to expand...
Click to collapse
Hello!I have same issues with you but prolem is wifi router.First I scare my phone have prolem,but I found her brother''s lg optimus Vu 2 is same,I very happy :highfive::highfive::highfive:....
When i move to another location,using another wireless,my Xperia T is good,not out of range,not disconnected....when I go home...everything is bad... I try to config modem...but can not...I'm not IT hardware.:laugh::laugh::laugh::laugh:

nghia3d said:
Hello!I have same issues with you but prolem is wifi router.First I scare my phone have prolem,but I found her brother''s lg optimus Vu 2 is same,I very happy :highfive::highfive::highfive:....
When i move to another location,using another wireless,my Xperia T is good,not out of range,not disconnected....when I go home...everything is bad... I try to config modem...but can not...I'm not IT hardware.:laugh::laugh::laugh::laugh:
Click to expand...
Click to collapse
Is time to change your modem, say goodbye to it and welcome the new
Sent from my LT25i using xda app-developers app

emperror123 said:
Is time to change your modem, say goodbye to it and welcome the new
Sent from my LT25i using xda app-developers app
Click to expand...
Click to collapse
:good::good::good::good: i bought an totolink,use it as repeater....everything is okay....gooddddddddd :highfive::highfive::highfive::highfive:

[Q] Wifi Prob

ok today i recieved my XSP as soon i connect it to wifi i got an update .. i downloaded and upgraded to latest version
but now am seein that my wifi singnals are not strong as my previous phone adn other phone
all phones are on same place yet XSP is hardly getting any signal.. has i got a faulty piece or .. it is with XSP...

WiFi issues are common on the SP. There are solutions if you're willing to root your phone - I think the thread which outlines them is called 'wifi fix'.
It worked for me - the SP has the best range of all the devices in my house.

Parkside said:
WiFi issues are common on the SP. There are solutions if you're willing to root your phone - I think the thread which outlines them is called 'wifi fix'.
It worked for me - the SP has the best range of all the devices in my house.
Click to expand...
Click to collapse
can you please link me to the post..
i will root it coz i cant use my internet due to low connectivity or wifi range

Wifi, Wifi tethering and Bluetooth is not working

Hi,
I have Xperia ZR C5503 phone about a year. Until 2 months ago I was using Android 4.3. When Lollipop update distributed I upgraded it to 5.0.2.(official)
But sometime after the upgrade my phone started not connecting wifi. It sees the available networks but not connecting them. The signal drops to lowest level about a second while trying to connect and it fails. Also I was using my phone's wifi tethering feature to share my internet to my pc. However wifi tethering is also not working. I enable it but I think it can't work as router. And lastly, I tried to send a file to my phone via bluetooth and it also enables but no other device sees it. I also have low sound on the phone and I can't hear people I am talking to.
So I got frustrated this saturday and downgraded to official 4.4.4. But it was same. Later I unlocked the bootloader and rooted my phone, installed recovery software. With that recovery mode I cleared all caches but the problem still countinued. Lastly I installed an unofficial modified kitkat to my phone but those problems still appears. I don't know why this phone is so problematic for me. I don't know if it is software related or hardware related. Now that my warranty is no longer valid.
Could you give me some ideas to attempt to solve these issues?

llama50 said:
Hi,
I have Xperia ZR C5503 phone about a year. Until 2 months ago I was using Android 4.3. When Lollipop update distributed I upgraded it to 5.0.2.(official)
But sometime after the upgrade my phone started not connecting wifi. It sees the available networks but not connecting them. The signal drops to lowest level about a second while trying to connect and it fails. Also I was using my phone's wifi tethering feature to share my internet to my pc. However wifi tethering is also not working. I enable it but I think it can't work as router. And lastly, I tried to send a file to my phone via bluetooth and it also enables but no other device sees it. I also have low sound on the phone and I can't hear people I am talking to.
So I got frustrated this saturday and downgraded to official 4.4.4. But it was same. Later I unlocked the bootloader and rooted my phone, installed recovery software. With that recovery mode I cleared all caches but the problem still countinued. Lastly I installed an unofficial modified kitkat to my phone but those problems still appears. I don't know why this phone is so problematic for me. I don't know if it is software related or hardware related. Now that my warranty is no longer valid.
Could you give me some ideas to attempt to solve these issues?
Click to expand...
Click to collapse
i think you must have dropped the phone because wifi and blutooth hardware in sony xperia zr is delicate , i too have dropped phone 4-5 time but still i dont have any problem with my cell , approach sony service centre because i heard may problem of XZR problem of bluetooth & Wifi after mobile accidents

rkumbhar said:
i think you must have dropped the phone because wifi and blutooth hardware in sony xperia zr is delicate , i too have dropped phone 4-5 time but still i dont have any problem with my cell , approach sony service centre because i heard may problem of XZR problem of bluetooth & Wifi after mobile accidents
Click to expand...
Click to collapse
Hi,
I had dropped my phone maybe 1 or 2 times but not from high heights.(~ a meter) But that was more than 5 months ago. I am having this issue since last 2 months and I am sure that I didn't drop or harm my phone in any way. However I wash my phone, do you think that could cause that? Just effecting wifi and bluetooth components?

It's not true about dropping the phone make that errors appear, there are many people with same issues, this phone have manufacturing problems, it's not software
My brother have same problem and he never dropped the phone. Just take a look in Sony forums.
Btw, my brother's phone lost Bluetooth connection, NFC, WiFi, Sometimes WiFi works making some pressing in the NFC spot some seconds, but sucks anyway :/

rickymanx said:
It's not true about dropping the phone make that errors appear, there are many people with same issues, this phone have manufacturing problems, it's not software
My brother have same problem and he never dropped the phone. Just take a look in Sony forums.
Btw, my brother's phone lost Bluetooth connection, NFC, WiFi, Sometimes WiFi works making some pressing in the NFC spot some seconds, but sucks anyway :/
Click to expand...
Click to collapse
How can i make the wifi stable? it drops in and out sometimes.

Wifi problem
my sony xperia zr has the same wifi problem it says scanning trys to connect the signal drops and again starts scanning..
I stopped the wifi service and restarted my phone and the wifi worked for a day and again the same proble.
Do anyone has a solution for this??

I have been facing the issue of wifi not connecting, since my upgrade to 5.1.1.
My research has led me to believe that the issue may be software based. However I'm not an expert in the field. And i was thinking of downgrading back to an older version of lollipop when the wifi was not dropping.
Can anyone advise on whether this may be a smart move, or a completely useless one?
Also is there a diagnostic protocol I can go through that could help me figure out for sure whether my wifi is busted physically, as some of you suggest here.
Thanks
Josette

I've tried the method "settings global put tether_dun_required 0" but when i reboot my Z5, the value comes back to 1 ... (and of course wifi tethering is not working, going thru USB is ok)

I'm discussing various points here. Check out everyone of this point and get a fair idea from where problem is originating.
1) Go to WiFi Settings > Keep wifi awake during sleep. Here the string value should be "Always"
2) Under stock firmware there are numerous battery optimisation. Some of them kill WiFi so battery can saved. Now disable this features if you want no drops in WiFi.
3) If both of don't work, head over to Xperia ZR General > Search for your specific device FTF. Flash it via flash tool. This should reset all wifi drivers. Don't opt or apply any battery features and use WiFi. If still issue exits then you're in bad luck.
4) Check for other WiFi access points. Check your own router's webpanel and see somewhere broadcasting and multicast signals are ticked. Also check your WiFi is at 100% of it's performance ( 100% transmit power)
5) Hardware issue. Most of the software part is not causing issues so it's safe to say a hardware issue is causing this. Now, long time ago when 5.0 was released for our device I read article regarding ZR. The user had constant WiFi drops. His issue was that his WiFi soldering was poor inside hardware. He soldered it again and his wifi drops were no longer a problem.
People also experience various bluetooth/tethering issue. It's important that people should gain knowledge about firmware flashing techniques so that device would get reset and you yourself could diagnose the problem. 1 in 0.7k unit has software/hardware issue in manufacturing. Sony provides diagnostic app, search in play store ( I'm not sure about this). Hope this answer helps many.

hii.. so did u get any solution for the problem ?
i am facing this problem since one month. i tried rebooting my phone many times. i even tried factory reset. but nothing has worked till know.
if u have any solution please inform me.thanku

Wifi Issue.
Hello Guys,
I have same issue in wifi after 1.5 Year of phone. Can you please help me on that. Does any one knows any other technician are repairing this phone? as SONY says they are not able to repair phone which even they developed. I do n't why such phones developed.
1. I have repaired phone using PCC.
2. tried reset
3. tried without stamina mode
4. tried with wifimanager app
but nothing works....
If you guys any suggestion any hope please let me know.
Thanks.

[SOLVED] Wifi issues with Z3c on Marshmallow - possible fix?

Since Sony made the official non-beta Marshmallow available for Z3c many people are complaining about wifi issues: wifi connection is very frequently being dropped. I was searching for possible fixes but none helped.
I wonder if anyone knows how to fix those problems and I also wonder if this issue is only present on some special configurations (rooted/unrooted/RecRoot...). so I am starting this thread in hope to find the solution.
Please help with any useful info you can...
----
UPDATE <July 1. 2016>
Problem solved by choosing "Use legacy DHCP client" at Settings > Developer options.
http://forum.xda-developers.com/showpost.php?p=67561668&postcount=6

exact same problem with me-i wonder if a factory reset makes any difference?

No issues here at all (UK EE) non rooted

i wonder if this issue is somehow connected with the rooting procedure, since i haven't heard of it on unrooted devices...

I have the same issue with my Z3c and concept rom, rooted. But I don't have the problem since beginning. I got the problems after my move. Now I have disabled visibility of network. In my old flat I had the WiFi visible and never had problems.
Gesendet von meinem D5803 mit Tapatalk

I found a fix yesterday, googling!
http://talk.sonymobile.com/t5/Xperia-Z3/Weak-Wi-Fi-signal-after-Android-6-update/td-p/1113392/page/6
It goes like this:
From settings->developer options I choose "Use legacy DHCP client", which use Loliopop insted the new one client, and everything is OK now.
Click to expand...
Click to collapse
I tested it and it works. No more wifi droping!
After following the advice reboot the phone (I also did a "Network settings reset" under Settings > Backup & reset before rebooting).

Poor Wifi connection on unrooted xperia x3c
toxic-hero said:
I found a fix yesterday, googling!
I have acquired Sony Xperia z3c only recently and upgraded the new device straight to MM, so no experience with previous versions.
I think there may be some improvement using the Lollipop DHCP client, however compare with my other phone Samsung S4 mini (Kitkat) the wifi performance is considerably weaker. Measuring wifi with speedtest.net app I get such different results as 6-8 Mbps with Samsung and 2-3 Mbps with Xperia z3c. At other places where the wifi is even weaker (1-2 Mbps), the S4 mini is still capable of downloading stuff, whereas xperia hardly connects and if so then keeps dropping the connection. I wonder whether the issue is possibly linked to the MM battery optimization, as there is no more the option of not saving battery using wifi. Within the optimized processes I've picked "com-sonymobile-wifi" to not optimize and seems to me that the wifi connection has improved slightly.
Any other suggestions in terms of improving wifi performance through power settings?
Click to expand...
Click to collapse

I did everyting what mentioned earlier, but nothing helps, I flashed back KitKat, and the issue is still here. It doesn't matter if it's rooted or unrooted. So I flashed back the original firmware and sent back to the local sony service because I still have guarantee for it. Now I'm waiting and maybe they can fix it.

WiFi has been spotty on this phone through all the versions of Android it's had. The legacy DHCP option is new to me I may try out out if i get anymore wifi issues
Sent from my D5803 using Tapatalk

toxic-hero said:
UPDATE <July 1. 2016>
Problem solved by choosing "Use legacy DHCP client" at Settings > Developer options.
http://forum.xda-developers.com/showpost.php?p=67561668&postcount=6
Click to expand...
Click to collapse
Thank you!
This did solve my problem with Xperia Z3 (D6643). I rebooted after enabling it, and it fixed spot on.

hi my experia z3 shows the WiFi but no connection, let me knw how to fix this

zuk z2 pro wifi problems

Hi there!
I have this zuk z2 pro monts ago and it comes with a custom shop rom. With the custom rom everything worked perfectly except that it doesnt have the option to update its system.
So to be able to update its system, i flashed it with a stock rom and it updated without any problem. Then im starting to notice that when i am on my wifi, some apps seemed to have stopped to connect. So i tried it on data, and it worked fine. Tried to connect it to another wifi of another isp, it works, but when im back on my providers wifi the problem still there. Also tried connecting to other wifi with the same isp as mine, and yeah, still apps dont run.
Now, is it possible that the stock rom is being selective with isps when running wifi? Anyone had this very weird problem like mine?

I have the same problem. When I connect to the wifi from my provider it fails, disconnects, stops working.
But I found a solution (for me): I added an extra wifi-router to my adsl-modem. Now I don't have that problem anymore.
Why this is happening, I don't know.

luytent said:
I have the same problem. When I connect to the wifi from my provider it fails, disconnects, stops working.
But I found a solution (for me): I added an extra wifi-router to my adsl-modem. Now I don't have that problem anymore.
Why this is happening, I don't know.
Click to expand...
Click to collapse
I think that this happens because Zuk z2 is configured for China region at wifi. You can change the region at custom roms but stock rom doesn't have this option

Other similar problem
luytent said:
I have the same problem. When I connect to the wifi from my provider it fails, disconnects, stops working.
But I found a solution (for me): I added an extra wifi-router to my adsl-modem. Now I don't have that problem anymore.
Why this is happening, I don't know.
Click to expand...
Click to collapse
In my case I have a similar problem. My Wifi not work in 2.4Ghz frequency only in 5.0Ghz. Somebody can help me? I already flash various custom roms and stocks (using qfil) and basebands (from basebands colections) and one million of possible things. Can would be hardware problem?

brunolsantosvc said:
In my case I have a similar problem. My Wifi not work in 2.4Ghz frequency only in 5.0Ghz. Somebody can help me? I already flash various custom roms and stocks (using qfil) and basebands (from basebands colections) and one million of possible things. Can would be hardware problem?
Click to expand...
Click to collapse
Try to flash aex or lineage. At advanced wifi settings they have a region setting. Choose China and tell me if it helps

chtsarts said:
Try to flash aex or lineage. At advanced wifi settings they have a region setting. Choose China and tell me if it helps
Click to expand...
Click to collapse
Not work! Actually the lineage rom is installed and the region choosed is China. I don't know what I do.

Any solution?

Try to flash 1.9.104 st by qfil . Notice that relock bootloader . If it doesn't improve that means hardware problem .

leoneiva said:
Any solution?
Click to expand...
Click to collapse
can be a problem of incompatibility between zuk phone and wifi router as well. Some TPLink routers are already known not to be working good with ZUK Z2 Pro. So it is not always a fault of ZUK

Today i am trying sagemcom modem. No sucess! It connects for only 5 seconds.
After 4 roms(android 7.1 and 8.1), 3 routers(tp-link and Sagemcom) and 2 days, i dont know what to do!
3 months of heavy use and no problems. suddly i heppens!
But if i put the phone on the router(Very close), it keep conected, but the connection is very very very low speed.

Same problem, after stock ROM update wifi see all networks, but impossible to connect. I install zui 1.9, i update, i install persist partition, i try aex, RR... Same problem, wifi can t connect, you have solution?

Any solution?

Solution to my problem.
Sorry, i wasn't to visit here and post the fix i did to solve my problem. Anyways, here it is.
Basically i found out that the problem goes with a sudden incompatibility issue with my phone and the wifi. Im clearly not sure as to what may have caused such, but it come and goes from time to time.
Solution:
I just simply had a reset on my router and walla, solved it. Also, do a clean up on your wifi list. Forget your old SSID, and connect to the new one. This basically solved mine.
Thanks! Keep me posted and see if my solution helps.

I guess you should try the suggestion given at the comment above. But even better than that, you wouldn't have this problem if you had bought my ZUK as you initially wanted to. Cheap is not always really cheap...