Database Develop

[9001][SOLVED] WiFi issue : keeps randomly disconnecting

Hi
Like in the title : The wifi in my S+ keeps randomly disconnecting, on various roms (starting from branded play 2.3.4 rom, then on 2.3.5, and now on 2.3.6)
What seems to be the problem ? is it hardware fault ?
I read, in few other threads, that other people, had in some kind of way a similiar problem...
What do You think ? Please SHARE

BrodaMGS said:
Hi
Like in the title : The wifi in my S+ keeps randomly disconnecting, on various roms (starting from branded play 2.3.4 rom, then on 2.3.5, and now on 2.3.6)
What seems to be the problem ? is it hardware fault ?
I read, in few other threads, that other people, had in some kind of way a similiar problem...
What do You think ? Please SHARE
Click to expand...
Click to collapse
try to assign staitc ip............it happened in i9003 too

download a root explorer, go to data/misc/wifi/wpa_supplicant.conf and set: update_config to 0 and priority to 1, it doesn't solve the problem but it gets a little better

sakindia123 said:
try to assign staitc ip............it happened in i9003 too
Click to expand...
Click to collapse
You mean static ip on the router ?

turbo48 said:
download a root explorer, go to data/misc/wifi/wpa_supplicant.conf and set: update_config to 0 and priority to 1, it doesn't solve the problem but it gets a little better
Click to expand...
Click to collapse
When i try to open it in text editor, it shows only a blank page..

BrodaMGS said:
When i try to open it in text editor, it shows only a blank page..
Click to expand...
Click to collapse
i had the same problem i did 2 things 1 was after flashing i did a factory data reset and erased SD card (make sure to backup anything you need) and i also went into my Belkin 600N and set DHCP Lease from Forever to 2days.
ive not dropped wifi since and i had it with 4 diffrent ROMs im now using XXKPS 2.3.6

I've set static ip on my phone, switched DHCP lease setting to 2 days, and now testing...
Thanks Guys much love

Here comes super mega answer, which is worth finding Thank You button -
1.) Open dialer and enter *#*#526#*#*
2.) Come back and say that your wifi works without any issues.
Sent from my GT-I9001 using XDA App

mamootz said:
Here comes super mega answer, which is worth finding Thank You button -
1.) Open dialer and enter *#*#526#*#*
2.) Come back and say that your wifi works without any issues.
Sent from my GT-I9001 using XDA App
Click to expand...
Click to collapse
What does this do ? So i can keep it for future refrence

BackDaws said:
What does this do ? So i can keep it for future refrence
Click to expand...
Click to collapse
i guess he means 528 instead of 526. *#*#528#*#* is the wifi test mode which loads the wifi drivers automatically.

mikeeo019 said:
i guess he means 528 instead of 526. *#*#528#*#* is the wifi test mode which loads the wifi drivers automatically.
Click to expand...
Click to collapse
are there anymore of these codes for the i9001 that are useful ?

BackDaws said:
are there anymore of these codes for the i9001 that are useful ?
Click to expand...
Click to collapse
Yeah there are plenty of those codes actually.
for example:
*#*#7780#*#* factory reset
*2767*3855# factory format (everything wiped, also the internal sd card)
*#*#1575#*#* gps test
*#*#1234#*#* pda phone version
*#*#1111#*#* fta sw version
*#0*# lcd test (cool one )
*#*#2664#*#* touchscreen test
they should work on every android device. try google to find more

Thanks mate

So after the tips from Sakindia and BackDaws, when i changed the phones ip to static, and changed the routers DHCP settings, i have no more problem with the wifi connection.
Thanks again guys
I hope, that this thread will be helpfull fo other S+ users

BrodaMGS said:
So after the tips from Sakindia and BackDaws, when i changed the phones ip to static, and changed the routers DHCP settings, i have no more problem with the wifi connection.
Thanks again guys
I hope, that this thread will be helpfull fo other S+ users
Click to expand...
Click to collapse
Change title to "SOLVED"

If it is set to static ip and you changed dhcp settings it is only solution for your home network, not anywhere in public, right?
Sent from my GT-I9001 using XDA App

mamootz said:
If it is set to static ip and you changed dhcp settings it is only solution for your home network, not anywhere in public, right?
Sent from my GT-I9001 using XDA App
Click to expand...
Click to collapse
I don't know, i'll try it later in My Girlfriend's house, and i'll see if it's still ok

Sorry for my spam but I really want to post this -
Checking WiFi is not the best thing to do @ girlfriends house...
Sent from my GT-I9001 using XDA App

BackDaws said:
i had the same problem i did 2 things 1 was after flashing i did a factory data reset and erased SD card (make sure to backup anything you need) and i also went into my Belkin 600N and set DHCP Lease from Forever to 2days.
ive not dropped wifi since and i had it with 4 diffrent ROMs im now using XXKPS 2.3.6
Click to expand...
Click to collapse
This was exactly the cure for the problem, I can also confirm it. I tried several things, such as exchanging config files between several ROMs, what a waste of time
But I'm still wondering why 2.3.4-2.3.6 can not work with forever leasing time... It's bad.
p.s.: for me no static IP needed for proper work
Thanks for sharing this BackDaws!

szikee said:
This was exactly the cure for the problem, I can also confirm it. I tried several things, such as exchanging config files between several ROMs, what a waste of time
But I'm still wondering why 2.3.4-2.3.6 can not work with forever leasing time... It's bad.
p.s.: for me no static IP needed for proper work
Thanks for sharing this BackDaws!
Click to expand...
Click to collapse
It was a 2.3.5 issue also
Now everything runs smooth as hell ;>

Wi-Fi not connecting

When turning on Wi-Fi, it's saying connecting and then disconnected, but below that notification says wi-fi available (status Excellent)
Tried all ROMs CM10, Zeus v7, and UltraICS ROM
With all of above ROMs, problem existed.
Waiting for solution..

And you tell people to post questions in Q/A.........
Sent from my phone powered by cm10.1,
Big thanks to Chenleicpp.

RomWiz said:
And you tell people to post questions in Q/A.........
Sent from my phone powered by cm10.1,
Big thanks to Chenleicpp.
Click to expand...
Click to collapse
ahah
i remember one day he said to some people "dont spam" ahah

RomWiz said:
And you tell people to post questions in Q/A.........
Sent from my phone powered by cm10.1,
Big thanks to Chenleicpp.
Click to expand...
Click to collapse
Sorry for that..:silly:
Yes, I realized that after some time, it is supposed to be in Q&A. Because I posted it in hurry while doing work.
I thought to put a request to moderators to move this to Q&A and I thought no need to do that for this little thing.
I forgot you and your followers at that time, or else I would have requested moderators....

RomWiz said:
And you tell people to post questions in Q/A.......
Big thanks to Chenleicpp.
Click to expand...
Click to collapse
agritux said:
ahah
i remember one day he said to some people "dont spam" ahah
Click to expand...
Click to collapse
The thing you don't know i.e. you are really big spammers.
Because you don't have solution for problem.
You just want to talk something useless for timepass..:silly:
Instead of creating multiple waste offending posts, try to solve if you can...:good:

i am giving you my first thanks for your very useful post.
thanks for fixing me.
my mind completly changed after your post..
oh my god
you are the best.
if you want solution, you must tell more information
such as, before you have this issue? this happened after what? or when?
this happening only one place or everywhere?
maybe your modem issue? or adsl or whatelse issue?
maybe your device damaged
you should paste a logcat
and tell more information...

agritux said:
this happened after what? or when?
Using Zeus v7, last night OK, but today afternoon suddenly WiFi problem srarted
this happening only one place or everywhere?
Everywhere
maybe your modem issue? or adsl or whatelse issue?
WiFi working on CM after flashing 3 times alternating other ROMs
maybe your device damaged
No damage or dropping
you should paste a logcat
and tell more information
I will try to do logcat
Click to expand...
Click to collapse

It's causing the wi-fi problem.
In 2nd page of v30b ICS user manual, a special indication about wi-fi region wise, maybe that's the culprit for wi-fi problem.

This problem usually happens when you are using a wifi modem with a mac address filtration or something
Try looking in the modem's settings about mac address options

theaks30 said:
This problem usually happens when you are using a wifi modem with a mac address filtration or something
Try looking in the modem's settings about mac address options
Click to expand...
Click to collapse
Thanks for reply, but before wi-fi problem I am using it for 2 years with no problem of mac address or anything else, (wi-fi is open without password)
After flashing Zeus, UltraICS, and CM10 alternating with multiple times, get wi-fi problem gone away on CM10 now, maybe if I flash some ROM, problem may arise again.
Now again, no problem with mac address or anything.

try with another device. if it's ok, it will mean that the the issue is on phone side

it's not mac address problem then

It's causing the wi-fi problem.
In 2nd page of v30b ICS user manual, a special indication about wi-fi region wise, maybe that's the culprit for wi-fi problem.
Click to expand...
Click to collapse
Guys what's your opinion on this, got any solution?
Sorry pic unable to attach here, see above posts

[Q] GPS problem

Hi,
My dad has a Galaxy S Advance and we can not use its GPS receiver at all. I tried the GPSTest application, it doesn't show any satellites, whilst my old I9000 Galaxy S - which has a very weak receiver - can find 7-8 satellites. Does anybody have any suggestions?
Phone was running on I9070XXLPY (the very first 4.1.2), I thought it may be a SW issue so I have just flashed the latest German I9070XXLQE firmware via Odin but the issue still exists. Phone functionality and Bluetooth are working fine, so Modem binary is working and /efs is not lost. Phone is not rooted and I don't want it to be rooted at all.
Thanks in advance

aToS88 said:
Hi,
My dad has a Galaxy S Advance and we can not use its GPS receiver at all. I tried the GPSTest application, it doesn't show any satellites, whilst my old I9000 Galaxy S - which has a very weak receiver - can find 7-8 satellites. Does anybody have any suggestions?
Phone was running on I9070XXLPY (the very first 4.1.2), I thought it may be a SW issue so I have just flashed the latest German I9070XXLQE firmware via Odin but the issue still exists. Phone functionality and Bluetooth are working fine, so Modem binary is working and /efs is not lost. Phone is not rooted and I don't want it to be rooted at all.
Thanks in advance
Click to expand...
Click to collapse
One thing I want to ask you. You tried it outside, or in building?
Sent from Galaxy S Advance I9070

shut_down said:
One thing I want to ask you. You tried it outside, or in building?
Sent from Galaxy S Advance I9070
Click to expand...
Click to collapse
I have tried it both in and outside but as I've written, my SGS 1 was near the SGSA and it found plenty of satellites :-\
Edit: one thing, it has found one satellite once outside but none anymore
Sent from my GT-I9000 using xda app-developers app

aToS88 said:
I have tried it both in and outside but as I've written, my SGS 1 was near the SGSA and it found plenty of satellites :-\
Edit: one thing, it has found one satellite once outside but none anymore
Sent from my GT-I9000 using xda app-developers app
Click to expand...
Click to collapse
You never had it working good on JB except that one time? Factory reset, from recovery. Backup all what you need before that.
Sent from Galaxy S Advance I9070

shut_down said:
You never had it working good on JB except that one time? Factory reset, from recovery. Backup all what you need before that.
Sent from Galaxy S Advance I9070
Click to expand...
Click to collapse
I can't really say it was working that time but yes, it's right. Next time when I go home I'll try the factory reset, if no other suggestion comes. Thank you for the help! :good:

After factory reset the phone can find ~3 satellites only, no more
Sent from my GT-I9000 using xda app-developers app

I have the same problem with my Galaxy S Advance
Tried hard reset S Advance factory reset
http://www.hard-reset.com/samsung-galaxy-s-advance-i9070-hard-reset.html
In winter i thought it is very slow because of the weather conditions, clouds etc. but in summer it is the same. Sooo slow, not getting position, it takes 10 min. to see satellites.
Is it a common problem? Is it hardware problem?
Did someone solved somhow?

palika said:
I have the same problem with my Galaxy S Advance
Tried hard reset S Advance factory reset
http://www.hard-reset.com/samsung-galaxy-s-advance-i9070-hard-reset.html
In winter i thought it is very slow because of the weather conditions, clouds etc. but in summer it is the same. Sooo slow, not getting position, it takes 10 min. to see satellites.
Is it a common problem? Is it hardware problem?
Did someone solved somhow?
Click to expand...
Click to collapse
For me if fix satelites for about 10-30 seconds... Try to have internet on.

palika said:
Originally Posted by palika View Post
I have the same problem with my Galaxy S Advance
Tried hard reset S Advance factory reset
http://www.hard-reset.com/samsung-ga...ard-reset.html
In winter i thought it is very slow because of the weather conditions, clouds etc. but in summer it is the same. Sooo slow, not getting position, it takes 10 min. to see satellites.
Is it a common problem? Is it hardware problem?
Did someone solved somhow?
Click to expand...
Click to collapse
shut_down said:
For me if fix satelites for about 10-30 seconds... Try to have internet on. For me if fix satelites for about 10-30 seconds... Try to have internet on.
Click to expand...
Click to collapse
If Internet enabled, it is the same. I know that if you download GPS data it should find GPS signal much sooner, but it shouldn't.
Thanks

Root and set gps.config to your country. Search for ntp servers. (Almighty Google). By default for my phone it was set to North America, and I am in Serbia. It was taking 3-5 mins to get gps fix, after changing it to my (rs.ntp.blah, blah) it takes 10-30 seconds.
Послато са GT-I9070 користећи Тапаталк 4

install Status GPS - Test & Fix from Play
open app
first reset GPS then Load Xtra data

How can i change gps config. to Serbia?

danijelp said:
How can i change gps config. to Serbia?
Click to expand...
Click to collapse
Perhaps you need to download this application, mate, on playstore. https://play.google.com/store/apps/details?id=net.serbiamap.android
Sourch : http://www.serbiamap.net/en/android.html
Maybe you should also read the thread here. But I'm not sure if it worked. But you can try. http://forum.xda-developers.com/showthread.php?t=1200089
or here : http://forum.xda-developers.com/showthread.php?t=2388552

This thread is old, but I like to share extra info. This Google play app "Install GPS - test & Fix" works great!
I installed an original firmware for my GT-I9070, everything is working except GPS. This is fixed by this app! Awesome!:good:
pawelarc said:
install Status GPS - Test & Fix from Play
open app
first reset GPS then Load Xtra data
Click to expand...
Click to collapse

[Q] Help! my GSM is connected to wifi but no network

im using NEW EXPERIENCE ROM but when i connect to wifi it connected but no network connection anyone can help me how to fix this problem? thank you so much!:crying:

_followers_ said:
im using NEW EXPERIENCE ROM but when i connect to wifi it connected but no network connection anyone can help me how to fix this problem? thank you so much!:crying:
Click to expand...
Click to collapse
First restart your router and also assured that your internet is in working state.
and if it is phone prob then try some app from market like wifi fix, etc.
And last thing you could try is flashing the rom again.
Sent from my GT-S5570 using xda premium

This is a common prolem in new experience...it's the main reason why i switched to another rom. The problem is not in your router. It's in ROM's kernel.
A possible fix is to connect to desired wifi connection then restart your phone, it should connect automaticlly. And you have to do this every time you connect to a wifi apn...
You can try flashing another kernel.
---------- Post added at 05:40 PM ---------- Previous post was at 05:39 PM ----------
aakashasaj said:
First restart your router and also assured that your internet is in working state.
and if it is phone prob then try some app from market like wifi fix, etc.
And last thing you could try is flashing the rom again.
Sent from my GT-S5570 using xda premium
Click to expand...
Click to collapse
so called wifi fixer apps from google play are fake...

Thank you so much for your answer....ok i will try what you say...thank so much again

I'm using New experience too.. i don't have that problem.. I used to face similar issue when i was in stock.. wifi kept getting disconnected.. i read somewhere that the router settings was not appropriate for few phones.. didn't make sense at first.. went ahead and changed the "Lease time" settings under "LAN settings" in the router page to "two weeks" from "forever" (not necessarily "two weeks".. any option except "forever" will do) . Never had that issue again..

vipinbp said:
I'm using New experience too.. i don't have that problem.. I used to face similar issue when i was in stock.. wifi kept getting disconnected.. i read somewhere that the router settings was not appropriate for few phones.. didn't make sense at first.. went ahead and changed the "Lease time" settings under "LAN settings" in the router page to "two weeks" from "forever" (not necessarily "two weeks".. any option except "forever" will do) . Never had that issue again..
Click to expand...
Click to collapse
thank you i will try to configured my router...im installing back the NEW EXPERIENCE, this rom is stable and fast thats y use dis since autoradio release. again thank you for the info.

HELP for 20a and CM users !!

Hey guyz, my wlan_rx_wake wakelock is driving me insane.
Please do a little test so i can determine what is causing this, it is really simple!!!!
stock 20a/b/c user and CM users (specially stock!):
set your wifi to never sleep on advance wifi menu
write your ip number
leave the phone alone for 5 minutes
now ping it (cmd -> ping "your ip" -t) and post result !!
Obs: i just want to know if the ping answer will come immediately or just after a while when the phone wakes up. it shouldnt answer immediately like on 10f/h firmware, but it answers immediately on CM meaning wifi is not sleeping well.
Please post result!!! this is driving me insane

profyler said:
Hey guyz, my wlan_rx_wake wakelock is driving me insane.
Please do a little test so i can determine what is causing this, it is really simple!!!!
stock 20a/b/c user and CM users (specially stock!):
set your wifi to never sleep on advance wifi menu
write your ip number
leave the phone alone for 5 minutes
now ping it (cmd -> ping "your ip" -t) and post result !!
Obs: i just want to know if the ping answer will come immediately or just after a while when the phone wakes up. it shouldnt answer immediately like on 10f/h firmware, but it answers immediately on CM meaning wifi is not sleeping well.
Please post result!!! this is driving me insane
Click to expand...
Click to collapse
give your device static IP on the router. This is from google.

Life'sGood said:
give your device static IP on the router. This is from google.
Click to expand...
Click to collapse
i didnt have to do this when i was on ICS one day ago, so i dont think it will change putting static IP.
Could you please post your ping results since u have 20b??

maybe in jellybean something is changed that affects how your router treats your device now. Ping wouldn't change, with this issue or not. This problem is probably due to the DHCP of your router, checking if the IP is released and ready to be used on another device, which your phone will wake up and respond 'no'.
this happened to me too after changing to jellybean but giving static fixed it.

Life'sGood said:
maybe in jellybean something is changed that affects how your router treats your device now. Ping wouldn't change, with this issue or not. This problem is probably due to the DHCP of your router, checking if the IP is released and ready to be used on another device, which your phone will wake up and respond 'no'.
this happened to me too after changing to jellybean but giving static fixed it.
Click to expand...
Click to collapse
yeah, thats why i asked for someone (with 20a/b) to ping the phone and post results after leaving it standing for a while. I want to know if this fix that first appear on 10f firmware is also on 20a,
I saw my router logs and didnt find anything unusual as i imagined. Puting static IP would only be effective in my home (even not knowing if it would actualy fix that issue) and useless everywhere else.
As is said nothing has change on my network router & devices. Until one day ago i was on ics and ping request would not give me an imediately response because it was sleeping, but after flashing CM, ping request are answering imediately, just like before stock 10f firmware. Im pretty sure its something in the rom/kernel.
Plus, my dad galaxy s2 and my mom L7 works like it should; answering ping requests like the second image.

profyler said:
yeah, thats why i asked for someone (with 20a/b) to ping the phone and post results after leaving it standing for a while. I want to know if this fix that first appear on 10f firmware is also on 20a,
I saw my router logs and didnt find anything unusual as i imagined. Puting static IP would only be effective in my home (even not knowing if it would actualy fix that issue) and useless everywhere else.
As is said nothing has change on my network router & devices. Until one day ago i was on ics and ping request would not give me an imediately response because it was sleeping, but after flashing CM, ping request are answering imediately, just like before stock 10f firmware. Im pretty sure its something in the rom/kernel.
Plus, my dad galaxy s2 and my mom L7 works like it should; answering ping requests like the second image.
Click to expand...
Click to collapse
sound like you've something positive to work on. Here you go, hope this helps.
*i reckon you don't need my IP right? i've blacken them out :laugh:

@profyler
you might want to do a little research on wifi.supplicant_scan_interval parameter in build.prop on V20
i do know tweaking it can help with battery when we have wifi on, but do not have any connection.

Life'sGood said:
sound like you've something positive to work on. Here you go, hope this helps.
*i reckon you don't need my IP right? i've blacken them out :laugh:
Click to expand...
Click to collapse
thanks, that is what i was looking for! did you do this ping test after leaving the phone sleeping for a while?

Life'sGood said:
@profyler
you might want to do a little research on wifi.supplicant_scan_interval parameter in build.prop on V20
i do know tweaking it can help with battery when we have wifi on, but do not have any connection.
Click to expand...
Click to collapse
Thank you men, the weird thing is that i dont have wifi.supplicant_scan_interval , not any other wifi parameters on build.prop. i will manually add them and see what happens
may be CM doesnt use this.
Can you post your build.prop so io can copy stuff? or may be just copy the wifi parameters.
Edit: i see those parameters on zaiben ROM wich is similiar to stock 20a.
can you confirm those parameters on your build.pro?
wlan.chip.vendor=brcm
wlan.chip.version=bcm4330x
wifi.supplicant_scan_interval=200
wifi.lge.patch=true
wifi.interface=wlan0
wifi.lge.hanglessid=true
wifi.lge.offdelay=false
dhcp.dlna.using=false
wifi.lge.cc.table=true
wifi.lge.supportp2p5g=no

profyler said:
thanks, that is what i was looking for! did you do this ping test after leaving the phone sleeping for a while?
Click to expand...
Click to collapse
when i took the screenshots no. but today after leaving it to charge overnight the first thing i did was do the ping. yep. quite same result averaging 180 to 250ms
profyler said:
Thank you men, the weird thing is that i dont have wifi.supplicant_scan_interval , not any other wifi parameters on build.prop. i will manually add them and see what happens
may be CM doesnt use this.
Can you post your build.prop so io can copy stuff? or may be just copy the wifi parameters.
Edit: i see those parameters on zaiben ROM wich is similiar to stock 20a.
can you confirm those parameters on your build.pro?
wlan.chip.vendor=brcm
wlan.chip.version=bcm4330x
wifi.supplicant_scan_interval=200
wifi.lge.patch=true
wifi.interface=wlan0
wifi.lge.hanglessid=true
wifi.lge.offdelay=false
dhcp.dlna.using=false
wifi.lge.cc.table=true
wifi.lge.supportp2p5g=no
Click to expand...
Click to collapse
yes same parameters. but for wifi.supplicant_scan_interval the default on V20B is 20. This one here is tweaked.

Life'sGood said:
when i took the screenshots no. but today after leaving it to charge overnight the first thing i did was do the ping. yep. quite same result averaging 180 to 250ms
yes same parameters. but for wifi.supplicant_scan_interval the default on V20B is 20. This one here is tweaked.
Click to expand...
Click to collapse
thanks, but when on charging , wifi doesnt sleep.... the ping request needed to be executed without charger, after leaving the phone for 5 minutes alone (locked)
can you please do this? sorry to bother you so much

no problem, here's the one with more than 5 min of screen off

Life'sGood said:
no problem, here's the one with more than 5 min of screen off
Click to expand...
Click to collapse
thanks, seem that wifi 20v is not optimized like 10v, but thanks anyway, will check that later

profyler said:
thanks, seem that wifi 20v is not optimized like 10v, but thanks anyway, will check that later
Click to expand...
Click to collapse
hey, did you try setting the wifi.supplicant_scan_interval?
After setting it to 300 i think im really getting ALOT more juice but im not sure if its a placebo effect, and i've eco mode on through terminal.

Life'sGood said:
hey, did you try setting the wifi.supplicant_scan_interval?
After setting it to 300 i think im really getting ALOT more juice but im not sure if its a placebo effect, and i've eco mode on through terminal.
Click to expand...
Click to collapse
i actually tested once having 200 as wifi.supplicant, but didnt seee any improvement. it shouldnt also, because that parameter means that it look for your saved wifi but when they are not in range, so you would only maybe see an affect when not conected to wifi..