SGH-i337M WiFi issues after ODIN firmware update URGENT!! - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I was running a modified ROM on my device and I decided I'd rather go back to stock touchwiz.
I did some searching and found a link to a lollipop 5.0.1 release.
I then flashed the file though odin, did a complete factory reset after and booted my device.
It booted fine and everything worked until I decided I'd connect my device to the wifi. The issue I'm having is, the wifi on the phone wont turn on. The switch flicks, but goes back to the off position in less than a second.
I'm wondering what could be the issue here. I still haven't found a right modem to flash as I believe thats the issue.
model: SGH i337M
baseband: i337MVLUEMK6
build: LRX22C.I337MVLUGOC4
urgent help needed.
Thanks in advance.

Did you flash the latest firmware from here: http://www.sammobile.com/firmwares/database/SGH-I337M/
Your wifi probably doesn't work because the baseband doesn't match the bootloader.

audit13 said:
Did you flash the latest firmware from here: http://www.sammobile.com/firmwares/database/SGH-I337M/
Your wifi probably doesn't work because the baseband doesn't match the bootloader.
Click to expand...
Click to collapse
Thanks man! Reflashed the firmware and it's as good as new.

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

Samsung S4 Modem Help

Hi, i need help choosing a good modem. I am currently using my samsung s4 on the o2 uk network. I dont know much about the right modem.
But how can i find the latest modem that is designed to operate on a uk network?
any help is much appreciated.
What's wrong with the modem firmware that is currently on your S4?
Under ordinary circumstances the modem firmware is only changed when the ROM itself is changed. For example, an OTA update to go from Android 4.4.2 to Android 5.0.1 would include a new modem designed for Android 5.0.1. The only time the modem firmware may need to be changed outside of an OTA update is if the device is rooted and the user is installing a custom Android 5.x ROM. This is because custom ROMs do not include updated modem firmware or bootloaders. In that case the modem would be updated manually using the Odin software.
Strephon Alkhalikoi said:
What's wrong with the modem firmware that is currently on your S4?
Under ordinary circumstances the modem firmware is only changed when the ROM itself is changed. For example, an OTA update to go from Android 4.4.2 to Android 5.0.1 would include a new modem designed for Android 5.0.1. The only time the modem firmware may need to be changed outside of an OTA update is if the device is rooted and the user is installing a custom Android 5.x ROM. This is because custom ROMs do not include updated modem firmware or bootloaders. In that case the modem would be updated manually using the Odin software.
Click to expand...
Click to collapse
thanks for responding,
Before i flashed my phone to a custom rom the signal i received was very good. however, since i have flashed a few roms along with their matching baseband i have noticed that the signal is not as good as it was before the phone was flashed.
i can only assume that i have changed a baseband to one of which is not suited to the uk networks, if that is a possibilty. i was wondering which baseband would be best suited for a uk network?
that is if not using the correct baseband can cause signal issues?
The correct baseband for your device should be I9505XXUHOB7. If that isn't what you're running you can download it from the baseband thread in S4 General and flash it through Odin. If you're running something later than that though, I wouldn't bother changing it. For example, my I9505 was originally on O2 before being unlocked, and it's using a later baseband, I9505XXUHOF2, which happens to be from the unbranded German ROM. I'm having no issues using it on Straight Talk here in the United States.
While updating the baseband can help, you might also want to investigate whether the ROM itself might actually be the source of your signal woes.
Strephon Alkhalikoi said:
The correct baseband for your device should be I9505XXUHOB7. If that isn't what you're running you can download it from the baseband thread in S4 General and flash it through Odin. If you're running something later than that though, I wouldn't bother changing it. For example, my I9505 was originally on O2 before being unlocked, and it's using a later baseband, I9505XXUHOF2, which happens to be from the unbranded German ROM. I'm having no issues using it on Straight Talk here in the United States.
While updating the baseband can help, you might also want to investigate whether the ROM itself might actually be the source of your signal woes.
Click to expand...
Click to collapse
Im currently running the 4.4.2 XXUGNK4 goldeneye rom. would it still be ok if i went ahead and flashed the I9505XXUHOB7 along with it considering that is a lollipop version of the baseband?
In that case you'd want to get the latest Android 4.4.2 baseband possible from the aforementioned thread and install that. You'd cause more problems if you tried using the HOB7 baseband while still using an Android 4.4.2 bootloader.
Strephon Alkhalikoi said:
In that case you'd want to get the latest Android 4.4.2 baseband possible from the aforementioned thread and install that. You'd cause more problems if you tried using the HOB7 baseband while still using an Android 4.4.2 bootloader.
Click to expand...
Click to collapse
thanks , ill try that now.
a little of topic is it possible to flash a lollipop bootloader and then revert back to a bootloader designed for the 4.4.2 kitkat roms?
You'd have to try it and find out. I do believe it's possible since Knox is in both bootloaders, but I haven't had a reason to test it.

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.

How can I return to stock firmware from CM 12.1 (Android 5.1)

Hi,
My Device is:
SM-N9005 LTE (32GB)
It was running 4.4. Kitkat and I tried to flash Android 5.0 via Odin. Everything went fine except wifi which did not turn on at all. While searching I found out that many users faced this and there isn't a best fix available yet. Probably I flashed a wrong firmware which may have caused some csc mismatch or kernel issue. I definitely needed the wifi back so i went on to try and experiment more on the device which brought me to CM 12.1 and I flashed it via TWRP. It brought back my wifi but now i miss some of my staple apps on this device especially S Pen Stylus & S health. I tried the simple method - downloading a firmware from sammobile and flashing it through Odin but it failed in Odin. Is there any way I can go back to to Stock firmware? My knox is at 0x1 but it doesn't matter much.
Thanks a lot in advance.
Redmax! said:
Hi,
My Device is:
SM-N9005 LTE (32GB)
It was running 4.4. Kitkat and I tried to flash Android 5.0 via Odin. Everything went fine except wifi which did not turn on at all. While searching I found out that many users faced this and there isn't a best fix available yet. Probably I flashed a wrong firmware which may have caused some csc mismatch or kernel issue. I definitely needed the wifi back so i went on to try and experiment more on the device which brought me to CM 12.1 and I flashed it via TWRP. It brought back my wifi but now i miss some of my staple apps on this device especially S Pen Stylus & S health. I tried the simple method - downloading a firmware from sammobile and flashing it through Odin but it failed in Odin. Is there any way I can go back to to Stock firmware? My knox is at 0x1 but it doesn't matter much.
Thanks a lot in advance.
Click to expand...
Click to collapse
yes, download smartswitch from samsung and use the emergency feature ...you need your model # and SN # for it
djlilyazi said:
yes, download smartswitch from samsung and use the emergency feature ...you need your model # and SN # for it
Click to expand...
Click to collapse
Hi,
I already tried that but it gives this error.
Maybe you have updated your bootloader that's why you can't downgrade. Try lollipop roms. Or try a tw based custom rom with twrp.
What is the baseband and bootloader on your phone?
Match the last 4 characters to firmware here: http://www.sammobile.com/firmwares/database/SM-N9005/
I'm sorry for hijacking this post, but something fairly similar happened to me.
I've got an SM-N900, decided to update to Lollipop but despite all my efforts I've been getting awful battery life so I'd like to go back to KK.
Right now I'm using
Bootloader & PDA: N900UBUEBOF1
CSC: N900PGUEBOF2
Baseband: N900UBUEBOC3
and would like to go back to
PDA: N900UBUDND1
CSC: N900UWADND3
I've been reading and found that you need to flash this if your bootloader is on Lollipop, this is where my doubts begin. How do I know if my bootloader has been updated to Lollipop? If my BL is on Lollipop and I flash that file, can I install any KK rom?
Thank you for reading this, and I apologize for hijacking this thread.

Needing some help - Custom ROM back to Stock and now can't enable WIFI

Hello,
I have an I337 - Fido - Galaxy S4.
I was using an I9505 ROM.
I just flashed stock Fido ROM using Odin.
Everything seems to be working except for my WIFI.
When I try to turn the WIFI on the switch doesn't stay on...Just switches back to off.
I have done battery pull, and factory reset.
Can't seem to find a solution.
Some help would be great. Thanks.
You got the stock rom from sammobile.com?
Modem and bootloader match? Is imei correct?
audit13 said:
You got the stock rom from sammobile.com?
Modem and bootloader match? Is imei correct?
Click to expand...
Click to collapse
Used the stock rom from sammobile.com - Fido - Seemed to install Bell bloatware though.
Carrier reads Fido.
Not sure how to check modem, bootloader and IMEI...
Doesn't really matter which carrier firmware you flash as all Canadian carriers use the same firmware with a bit of customization.
Did you flash stock 4.4.2 or 5.01?
audit13 said:
Doesn't really matter which carrier firmware you flash as all Canadian carriers use the same firmware with a bit of customization.
Did you flash stock 4.4.2 or 5.01?
Click to expand...
Click to collapse
I just reflashed the rom and seems like we are in business.
Thanks anyways!
I guess someone can close this.

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