Wifi Disconnecting and Connecting issue - Galaxy S 4 Q&A, Help & Troubleshooting

Hi All..
My friend is using S4 i9500 model..
Before We flashed a chinese Lolipop firmware to it including Pit..
And now we flashed official Firmware of my Country including pit file i found it on Internet..
Its Freezing and not running well on Official Rom and wifi is continuously Disconnecting and reconnecting to my modem..
I decided to flash another Rom
So i picked and flashed alot of roms based on 5.1.1 and 5.0.2 to s4..
I'm running Tyagi rom its quite fast but same wifi connect and disconnect issue..
I want help to solve this...
Please tell me what i do.?

Did the phone work properly before flashing? Is it possible to flash back to the phone's original ROM?

audit13 said:
Did the phone work properly before flashing? Is it possible to flash back to the phone's original ROM?
Click to expand...
Click to collapse
Its works perfectly before official Firmware i flashed..
Not there Is no way to go back

Any Solution.?

Related

[Q] [I9500] Have generic IMEI and not able to connect to network

Hi,
I had installed the CyanogenMod 10.2 available in the original android development section on my I9500. I flashed it in the morning. everything was working fine except camera till afternoon. Suddenly on afternoon i observe that my phone has entered into emergency signals mode and was not connected to my mobile network. First i thought it was signal problem but upon reading found out that it is IMEI getting changed problem. I have installed Stock ROM again to try if it solves the problem but sadly it doesnt .
Anyone out there faced the same issue and can help me?
Thanks
parvezthepop said:
Hi,
I had installed the CyanogenMod 10.2 available in the original android development section on my I9500. I flashed it in the morning. everything was working fine except camera till afternoon. Suddenly on afternoon i observe that my phone has entered into emergency signals mode and was not connected to my mobile network. First i thought it was signal problem but upon reading found out that it is IMEI getting changed problem. I have installed Stock ROM again to try if it solves the problem but sadly it doesnt .
Anyone out there faced the same issue and can help me?
Thanks
Click to expand...
Click to collapse
What is the firmware you are using before flashing cm rom?
Sent from my GT-I9500 using xda app-developers app
parvezthepop said:
Hi,
I had installed the CyanogenMod 10.2 available in the original android development section on my I9500. I flashed it in the morning. everything was working fine except camera till afternoon. Suddenly on afternoon i observe that my phone has entered into emergency signals mode and was not connected to my mobile network. First i thought it was signal problem but upon reading found out that it is IMEI getting changed problem. I have installed Stock ROM again to try if it solves the problem but sadly it doesnt .
Anyone out there faced the same issue and can help me?
Thanks
Click to expand...
Click to collapse
Hi,
Have you tried flashing a previous modem?
List is HERE
Choose the correct version for your phone.
malybru said:
Hi,
Have you tried flashing a previous modem?
List is HERE
Choose the correct version for your phone.
Click to expand...
Click to collapse
I have an Indian model I9500 . I tried flashing Omega Rom before trying CM. For Omega ROM i flashed XXUBMG9. After that i flashed back the Stock firmware I9500XXUAMDE_I9500ODDAMDC_INU. Then i flashed CM. CM worked fine for half a day. Then it failed connecting to my network.
With the method you are telling i flashed my stock firmware modem first, but it didnt work. Now i flashed XXUBMG9 and it worked.
Can't i go back to my stock firmware modem now? Am I stuck with this modem ?
same
parvezthepop said:
I have an Indian model I9500 . I tried flashing Omega Rom before trying CM. For Omega ROM i flashed XXUBMG9. After that i flashed back the Stock firmware I9500XXUAMDE_I9500ODDAMDC_INU. Then i flashed CM. CM worked fine for half a day. Then it failed connecting to my network.
With the method you are telling i flashed my stock firmware modem first, but it didnt work. Now i flashed XXUBMG9 and it worked.
Can't i go back to my stock firmware modem now? Am I stuck with this modem ?
Click to expand...
Click to collapse
same here I am also having same problem phone works fine on xxubmg9 modem but not on stock modem as it gives generic imei,
is there any way to revert back to stock rom completely?
naanireddy said:
same here I am also having same problem phone works fine on xxubmg9 modem but not on stock modem as it gives generic imei,
is there any way to revert back to stock rom completely?
Click to expand...
Click to collapse
parvezthepop said:
I have an Indian model I9500 . I tried flashing Omega Rom before trying CM. For Omega ROM i flashed XXUBMG9. After that i flashed back the Stock firmware I9500XXUAMDE_I9500ODDAMDC_INU. Then i flashed CM. CM worked fine for half a day. Then it failed connecting to my network.
With the method you are telling i flashed my stock firmware modem first, but it didnt work. Now i flashed XXUBMG9 and it worked.
Can't i go back to my stock firmware modem now? Am I stuck with this modem ?
Click to expand...
Click to collapse
you still on the first old firmware for India (MDE).
you can take ota update and then the modem will be replaced. or flash latest Indian firmware (MG5) and you will be on full stock.
PS. i guess that modem does not affect warranty.
state
samersh72 said:
you still on the first old firmware for India (MDE).
you can take ota update and then the modem will be replaced. or flash latest Indian firmware (MG5) and you will be on full stock.
PS. i guess that modem does not affect warranty.
Click to expand...
Click to collapse
thanks for the suggestion but I am doing the same I hope...I am trying to flash I9500XWUBMG5_I9500ODDBMG5_I9500DDUBMF8_HOME.tar firmware but I am getting generic imei when I do this then I have to flash xxubmg9 modem to get my imei and I don't have any back up of efs folder.
naanireddy said:
thanks for the suggestion but I am doing the same I hope...I am trying to flash I9500XWUBMG5_I9500ODDBMG5_I9500DDUBMF8_HOME.tar firmware but I am getting generic imei when I do this then I have to flash xxubmg9 modem to get my imei and I don't have any back up of efs folder.
Click to expand...
Click to collapse
flash old indian firmware, and see if it can take ota update.
or flash MF8 modem alone twice on MG5 firmware and see if it will work
flash old firmware
samersh72 said:
flash old indian firmware, and see if it can take ota update.
or flash MF8 modem alone twice on MG5 firmware and see if it will work
Click to expand...
Click to collapse
I tried by flashing I9500XXUBMEA_I9500ODDBMEA_INS and I got same generic imei and I count get connected to server to get OTA update as it say connection failed and I have same problem is there any older firmware available other than that.
naanireddy said:
I tried by flashing I9500XXUBMEA_I9500ODDBMEA_INS and I got same generic imei and I count get connected to server to get OTA update as it say connection failed and I have same problem is there any older firmware available other than that.
Click to expand...
Click to collapse
MEA firmware came with DDUBMEA modem. try to flash this modem alone as "phone" twice http://d-h.st/c9i
any way these are all INS firmwares http://www.sammobile.com/firmwares/1/?model=GT-I9500&pcode=INS#firmware
I tried flashing MEA modem twice all other Indian Modems twice and nothing worked. It is only working on XXUBMG9 modem. I am really stuck on this modem.
Does anyone has a theory of why this is happening? Omega ROMv14 wanted flashing this modem as a prerequisite. I had flashed this modem before flashing Omega. Then i went back to my stock and flashed CM over my stock ROM. CM wasworking fine till sometime , then it started to drop the signals and later i realized i lost my imei. If i flash back the MG9 modem the i get the proper my phones imei and network connects. But for all other modem of india it just shows the generic imei and doesnt connect to network.
Can anyone help me postmortem this case and tell what went wrong where?
all failed
samersh72 said:
MEA firmware came with DDUBMEA modem. try to flash this modem alone as "phone" twice http://d-h.st/c9i
any way these are all INS firmwares http://www.sammobile.com/firmwares/1/?model=GT-I9500&pcode=INS#firmware
Click to expand...
Click to collapse
two modems failed samaresh I think probably only mg9 modems and higher only might work.
wat if I flash stock ware and again flash it with stock ware, while doing that I shall interrupt the flashing and take it to service center then is there any possibility of them recovering my imei in stock ware

32g sm-n9005 baseband unknown/imei null/sound and camera not working

After flashing the sm-n9005 to N9005DXUENE4 the phone is not function at all. Though I can still boot into the system it becomes very laggy, baseband unknown, imei null sound and camera not working. Did try to flash Sweetrom V7 still the same. Anyway if there's a way I can bring it back to life?
Try to flash back stock rom..or restore thru kies 3 will be much better..
Sent from my GT-S7500 using XDA Free mobile app
Did try the stock rom already, still the same.
at217 said:
Did try the stock rom already, still the same.
Click to expand...
Click to collapse
IMEI NULL/NULL is modem or hardware problem
My guess is that it is due to a modem/firmware mismatch. Start flashing a modem for same fw version.
did that already, one more thing the phone keyboard and the swipe to unlock is not responsive at all.repair.
did you find any solution and fixed your phone ?
ohayyam said:
did you find any solution and fixed your phone ?
Click to expand...
Click to collapse
that's a modem problem
flash ir with odin
rayman95 said:
that's a modem problem
flash ir with odin
Click to expand...
Click to collapse
I tried different stock rom and different modem files for LTE but still same... what is correct combination to fix this problem.
my CSC EUR, it was XSI changed due to custom rom ???
I have 6 LTE modem from indie omega rom and fount on xda 2 more MJI6 and MI6 ... I tried all with FNF2 , latest and older xsi stock roms and some combination of rom and modem. but could not fixed yet.
i tried your rom too )
i tried mirek190 methods but could not find a mmsblk0P11 file or edit mine on phone to write imei ...
still nothing ...
ohayyam said:
I tried different stock rom and different modem files for LTE but still same... what is correct combination to fix this problem.
my CSC EUR, it was XSI changed due to custom rom ???
I have 6 LTE modem from indie omega rom and fount on xda 2 more MJI6 and MI6 ... I tried all with FNF2 , latest and older xsi stock roms and some combination of rom and modem. but could not fixed yet.
i tried your rom too )
i tried mirek190 methods but could not find a mmsblk0P11 file or edit mine on phone to write imei ...
still nothing ...
Click to expand...
Click to collapse
When arrive the problem and which rom and modem do you have before?
You need to go back on this... you Don t have efs backup?????
Otherwise try to put NF2 modem with NF4 rom. Bootloader is not important.
But check if modem well installed because odin says PASS but still on old modem
Try to flash latest NG2 firmware after whipe cache and factory reset. It did the job for me.
rayman95 said:
When arrive the problem and which rom and modem do you have before?
You need to go back on this... you Don t have efs backup?????
Otherwise try to put NF2 modem with NF4 rom. Bootloader is not important.
But check if modem well installed because odin says PASS but still on old modem
Click to expand...
Click to collapse
how can i check the modem with baseband unknown imei null phone ? Even phone info samsung application shows nothing !!!
try khizar method to flash NF2 or NG2 modem
Thank you
rayman95 said:
try khizar method to flash NF2 or NG2 modem
Click to expand...
Click to collapse
I have been already try KHIZAR'S METHOD*to install different LTE Modems on my phone with different stock roms. No matter finally i gave my phone to local repair shop. Samsung Official repair center's do not care about my phone due to it is N9005 and it is not for my country selling phone.
And another question my first N9005 slept in water during almost whole night. When i wake up in the morning i found my phone in water since many hours. I give it repair shop to check also but seems to main board needs to be replaced. Connection sockets damaged badly like melted half of them. is it possible to only change the connection sockets instead of whole mainboard ? Any idea ? and Where can i get only the connection sockets ? from samy ? ))
And i am starting the googled to find N9005 mainboard sockets
You re the terminator of N9005.? ....... no idea about motherboard or connector sorry....
I am having the same issue,
I'm new to the site been cool so far learned a lot and done a lot with my Note 3 since being here.
I recently rooted and install a custom rom (N900_NF3_INU_Dr.Ketan Custom ROM K11) that works great, I tried flashing back to stock but encountered a major problem. after flashing to stock my IMEI is unknown and also my base-band from reading it seem as if my EFS got corrupted tried a ton of different thing and still I cant get this to work on stock. Only way my IMEI and base-band comes back is whenever I reinstall the custom rom (N900_NF3_INU_Dr.Ketan Custom ROM K11) and restore the EFS that was backed up during the first installation of this rom
Thanks in advance all help is greatly appreciated. :good::good:
juniorbb2201 said:
I am having the same issue,
I'm new to the site been cool so far learned a lot and done a lot with my Note 3 since being here.
I recently rooted and install a custom rom (N900_NF3_INU_Dr.Ketan Custom ROM K11) that works great, I tried flashing back to stock but encountered a major problem. after flashing to stock my IMEI is unknown and also my base-band from reading it seem as if my EFS got corrupted tried a ton of different thing and still I cant get this to work on stock. Only way my IMEI and base-band comes back is whenever I reinstall the custom rom (N900_NF3_INU_Dr.Ketan Custom ROM K11) and restore the EFS that was backed up during the first installation of this rom
Thanks in advance all help is greatly appreciated. :good::good:
Click to expand...
Click to collapse
So you are lucky , you can use your phone with custom ROM. I tried many custom and stock and different modems ..Still imei null and unkown basband (
Hopefully Samsung will fix this .ucking useless problem with 4.4.3 ROM...
sign: N9005 Terminator )
ohayyam said:
I tried different stock rom and different modem files for LTE but still same... what is correct combination to fix this problem.
my CSC EUR, it was XSI changed due to custom rom ???
I have 6 LTE modem from indie omega rom and fount on xda 2 more MJI6 and MI6 ... I tried all with FNF2 , latest and older xsi stock roms and some combination of rom and modem. but could not fixed yet.
i tried your rom too )
i tried mirek190 methods but could not find a mmsblk0P11 file or edit mine on phone to write imei ...
still nothing ...
Click to expand...
Click to collapse
Here mmsblk0P11
worked for me
goodoane said:
Try to flash latest NG2 firmware after whipe cache and factory reset. It did the job for me.
Click to expand...
Click to collapse
You are a gent. My phone is alive and well again thanks to your advice. Much appreciated
UNCNOWN IMEI,
I ALSO HAVE BEFORE
AND I INSTAL
Phronesis N7 v7.0.zip
AND IMEI IS OK,
BUT I THINK MY NOTE3
PROBLEM HARDWARE,
IT WORK ONLY WHEN
NETWORK GSM,
AND IT NO WORK IF
LTE/3G/2G AUTO,
IT NOTIFY "NO REGISTERED
InUNCNOWN IMEI,
I ALSO HAVE BEFORE
AND I INSTAL
Phronesis N7 v7.0.zip
AND IMEI IS OK,
BUT I THINK MY NOTE3
PROBLEM HARDWARE,
IT WORK ONLY WHEN
NETWORK GSM,
AND IT NO WORK IF
LTE/3G/2G AUTO,
IT NOTIFY "NO REGISTERED
IN NETWORK"
*
I THINK MAYBE NEED UPDATE MODEM WITH Odin, I UPDATE
MODEM NORDIC,
IT NOT HELP,
I UPDATE ANOTHER, AGAIN AND AGAIN, EVEN
I UPDATE OFFICIAL FIRMWARE,
ONE FILE AND FOUR WITH PIT
AND NOTHING BETTER THAN
Phronesis N7 v7.0.
I TRY INSTAL
ANOTHER FEW VERSIONS OF Phronesis
BUT IT BRICKS
AND ONLY v7.0
NO BRICKS.
Difficult understand your post .
Suggest flashing latest stock rom for your model and test .Check IMEI correct . Back up EFS .

[Q] Help Wifi Stuck turning on

Guys i having trouble with my note 3 wifi
i can tell that is stuck because it cant turn on
here is the problem
lately i was in flashing stockrom based NC1 from VN rom v14 because i was trying to
reset knox counter to 0 it did work , no problem at all even the knox is work perfectly. the problem start from auto
update software the samsung given, after update software the based change to NF1 so on NG1
there said to update again some security certificate.
arter that, buffff my phone cant turn on wifi
Please help i need to use wifi for my entire connection
stevensunshine said:
Guys i having trouble with my note 3 wifi
i can tell that is stuck because it cant turn on
here is the problem
lately i was in flashing stockrom based NC1 from VN rom v14 because i was trying to
reset knox counter to 0 it did work , no problem at all even the knox is work perfectly. the problem start from auto
update software the samsung given, after update software the based change to NF1 so on NG1
there said to update again some security certificate.
arter that, buffff my phone cant turn on wifi
Please help i need to use wifi for my entire connection
Click to expand...
Click to collapse
Wifi well get stuck or well refuse to turn on if you have the wrong radio installed. You'll need a firmware and baseband that works with each other for wifi/data/cellular to work. I would reflash the Baseband
Dizy801 said:
Wifi well get stuck or well refuse to turn on if you have the wrong radio installed. You'll need a firmware and baseband that works with each other for wifi/data/cellular to work. I would reflash the Baseband
Click to expand...
Click to collapse
hey thanks a lot for the answer, did you midn to teach me in tutorial please
Flash a fresh firmware using ODIN or Flash a rom of your choice in recovery. It should update your baseband. Make sure its region free or made for your region. I myself have never flashed it on my Note 3. But wifi being stuck has happened to me on countless different phones and it all points the the baseband/radio installed.
stevensunshine said:
Guys i having trouble with my note 3 wifi
i can tell that is stuck because it cant turn on
here is the problem
lately i was in flashing stockrom based NC1 from VN rom v14 because i was trying to
reset knox counter to 0 it did work , no problem at all even the knox is work perfectly. the problem start from auto
update software the samsung given, after update software the based change to NF1 so on NG1
there said to update again some security certificate.
arter that, buffff my phone cant turn on wifi
Please help i need to use wifi for my entire connection
Click to expand...
Click to collapse
Ah..Are you on vn rom v14? And then flashed stock rom?And which note3 do you have?
Sent from my SM-N900 using Tapatalk
Dizy801 said:
Flash a fresh firmware using ODIN or Flash a rom of your choice in recovery. It should update your baseband. Make sure its region free or made for your region. I myself have never flashed it on my Note 3. But wifi being stuck has happened to me on countless different phones and it all points the the baseband/radio installed.
Click to expand...
Click to collapse
i've done it, didnt work, any other ideas?
meetpatel said:
Ah..Are you on vn rom v14? And then flashed stock rom?And which note3 do you have?
Sent from my SM-N900 using Tapatalk
Click to expand...
Click to collapse
my note is sm-n900, indonesian region, did you have similar problem?
pls tell me how to fix it T.T
i've flashed the latest modem file, also didnt work
reflash with .pit file also didnt work
the last thing i wanna try is flashing JB rom and hope it fixed everything
stevensunshine said:
my note is sm-n900, indonesian region, did you have similar problem?
pls tell me how to fix it T.T
i've flashed the latest modem file, also didnt work
reflash with .pit file also didnt work
the last thing i wanna try is flashing JB rom and hope it fixed everything
Click to expand...
Click to collapse
Just flash N900_XXUENE1 modem file. 99% it will fix your problem. If you need that modem pm me.
Don't forget to hit tnx![emoji4]
Sent from my SM-N900 using Tapatalk
stevensunshine said:
my note is sm-n900, indonesian region, did you have similar problem?
pls tell me how to fix it T.T
i've flashed the latest modem file, also didnt work
reflash with .pit file also didnt work
the last thing i wanna try is flashing JB rom and hope it fixed everything
Click to expand...
Click to collapse
You can also flash your country's latest firmware.first try flashing latest firmware and if problem is still there then try flashing modem.
Sent from my SM-N900 using Tapatalk
my note 3 wifi and bluetooth is stuck on turning on
this afternoon i noticed that my wifi and bluetooth is stuck on turning on , i tried resetting it , doing a battery pull but the problem still happens , please can someone help me ? i am also trying to flash my phone to 5.0 firmware incase this is a bug but odin givens me an error saying NAND .write faied

WiFi issue (stuck on turning on)

Hi guys. I'm having a problem with my WiFi. It will often be stuck in trying to turn itself on and when it does switch on, it can't connect to any WiFi. I've tried rebooting my phone, flashing stock Samsung rom, re-rooting and flashing different custom roms but none of it seem to work at all. I'm currently on temasek v15.6 and using N9005.
Anyone has any idea about what may be wrong? I read somewhere online that it may be hardware issue since the radio chip houses both the WiFi and Bluetooth. I am able to use my Bluetooth without any problem so I am quite sure it isn't the radio chip problem.
What 'stock samsung rom' did you flash?
Did the bootloader and modem update?
As a last resort i'd try it with a pit file to repartition your phone.
Sent from my SM-N9005 using Tapatalk
I went to use the latest Samsung lollipop from sammobile. It changed my baseband to that version of lollipop though. What's a pit file and how is it done? BTW, I flashed to stock using odin.
This is the stock I was using. The PDA version is N9005DXUGBOF1 and the CSC version is N9005OLBGBOF1. Lollipop 5.0 (Singapore).
I've tried the method that was being recommended but still having no luck at all with my WiFi.. Thanks anyway.

S4 i9505 lollipop 5.0.1 wifi wont turn on.

I Have samsung galaxy s4 i9505. i have recently updated it using I9505XXUHOB7_I9505YXYHOB5_BTU firmware with Odin. My Wifi Wont Turn On. I Have Tried Wifi Fix Modems But I Cant Solved My Problem. Can Any One Help Me?? Thankx In Advance.
Did your phone come with btu firmware? If not, try flashing the stock rom that came with your phone. If it works with the original firmware, then you know it is a software issue.
audit13 said:
Did your phone come with btu firmware? If not, try flashing the stock rom that came with your phone. If it works with the original firmware, then you know it is a software issue.
Click to expand...
Click to collapse
Is It Possible That Phone Contain Wifi Adapter Of i9500 in i9505???
I don't know but I do know that the 9500 is based on an Exynos processor and the 9505 has a Qualcomm.
kamran845 said:
I Have samsung galaxy s4 i9505. i have recently updated it using I9505XXUHOB7_I9505YXYHOB5_BTU firmware with Odin. My Wifi Wont Turn On. I Have Tried Wifi Fix Modems But I Cant Solved My Problem. Can Any One Help Me?? Thankx In Advance.
Click to expand...
Click to collapse
Install this APP and add screenshots (IMEI not necessary atm).
I read on another forum that installing cm roms (based on aosp) the WiFi works
no option for attaching image file

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