wifi not connecting after 5.0.1 upgrade - Galaxy S 4 Q&A, Help & Troubleshooting

hi guys. i am using S4 E300L and recently flashed stock 5.0.1 from sammobile, Build no: E300LKLUGOJ2. after using it for few days without any problem, suddenly my wifi is not connecting. It tries connecting but fails. Tried resetting the password but not working. i have not faced this problem before. i have done a lot of research regarding this problem and found that many users have faced this problem. But other S4 users have the option to use custom rom but E300L has limited option.
Things i have tried:
1. Re-flashing the stock firmware, with wipe. ( wifi worked for a while then stopped working again)
2. Turned off wifi power save.
3. turned off smart network switch.
I have tried these steps but still not working.
Can anybody give me a fix for this problem. I have also tried looking for stable custom firmware for E300L but cannot find any. please help

Download again the firmware and reflash
Enviado do meu GT-I9505 através de Tapatalk

The problem still persists. anyone else facing similar problem? need a solution urgently

mohaimed said:
The problem still persists. anyone else facing similar problem? need a solution urgently
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Install this APP and add screenshots.

Joku1981 said:
Install this APP and add screenshots.
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Screenshots have been added

mohaimed said:
Screenshots have been added
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The product code being inactive and causing no network is somewhat related to EFS being corrupted even if the IMEI is still intact. Restore a EFS backup if you have it or get your device to repair.

Joku1981 said:
The product code being inactive and causing no network is somewhat related to EFS being corrupted even if the IMEI is still intact. Restore a EFS backup if you have it or get your device to repair.
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i dont know how to do that. but i have not faced this problem when i was using 4.4.2. is it a lollypop problem? how can i go back to 4.4.2 stock?

Related

[Q] WIFI issue my wifi and bluetooth not working

GT I9500 my wifi and bluetooth stopped working. i'm using the factory firmware for GT-I9500 i have tried all simple solution available.
please help!!!!
Thank you
ramskumr said:
GT I9500 my wifi and bluetooth stopped working. i'm using the factory firmware for GT-I9500 i have tried all simple solution available.
please help!!!!
Thank you
Click to expand...
Click to collapse
Dial *#1234# and tell me what appears pls.
*#1234#
Joku1981 said:
Dial *#1234# and tell me what appears pls.
Click to expand...
Click to collapse
AP : I9500XXUGNI1
CP : I9500DXUGNI1
CSC : OLBGNI1
arilucifer said:
AP : I9500XXUGNI1
CP : I9500DXUGNI1
CSC : OLBGNI1
Click to expand...
Click to collapse
Reflash same firmware: HERE.
i does it many time,,but nothing change..
Joku1981 said:
Reflash same firmware: HERE.
Click to expand...
Click to collapse
ramskumr said:
GT I9500 my wifi and bluetooth stopped working. i'm using the factory firmware for GT-I9500 i have tried all simple solution available.
please help!!!!
Thank you
Click to expand...
Click to collapse
why not just flash a different modem since its only the wifi and bluetooth. i had this problem and just flashed a different modem thorugh odin.
xDroidZz said:
why not just flash a different modem since its only the wifi and bluetooth. i had this problem and just flashed a different modem thorugh odin.
Click to expand...
Click to collapse
hey i have tried all possible methods every one mentioned in the forum right from flashing different factory rom to cm11 but couldn't find a way to solve this if u can help me pls suggest the potemtial fix thank you
ramskumr said:
hey i have tried all possible methods every one mentioned in the forum right from flashing different factory rom to cm11 but couldn't find a way to solve this if u can help me pls suggest the potemtial fix thank you
Click to expand...
Click to collapse
me too,,
i disassembly too like what i'm see on youtube,,but nothing change..
any advice please??
because my knox was void and service center can't help me too..
ramskumr said:
hey i have tried all possible methods every one mentioned in the forum right from flashing different factory rom to cm11 but couldn't find a way to solve this if u can help me pls suggest the potemtial fix thank you
Click to expand...
Click to collapse
the problem to that is actually only the modem of your phone. did your wifi and bluetooth worked earlier? when did you lost your wifi and bluetooth? did u lost your wifi and bluetooth after flashing another rom?
xDroidZz said:
the problem to that is actually only the modem of your phone. did your wifi and bluetooth worked earlier? when did you lost your wifi and bluetooth? did u lost your wifi and bluetooth after flashing another rom?
Click to expand...
Click to collapse
i was using cm11 but now i have factory rom past 4 months i have never faced any issue with the wifi or BT earlier. This crap has happened all of a sudden so pls help with it

[Q] Weird WiFi issues

I could really use some help/advice on this one.. I have been searching xda and google for ages trying every "trick" there is but nothing works. My phone is the Note 3 Sm-N900(exynos)
My problem is that my wifi simply won't start:/ Now let me give you the history of this problem
I was on KitKat and my wifi wasn't working and I was pretty sure it is a hardware problem. I wanted to factory reset it and get it fixed somewhere.
I saw android lollipop and thought oh well if I am resetting everything I might as well flash android 5.0 (russian version)
I did that and baam, WiFi was back! That led me to think that it was just some software issue after all and I was damn happy.
I instantly rooted and installed trwp (made a backup) as I always do.
On the next day, wifi stopped working again, I restored the backup and everything back to normal with working wifi.
Then I decided to install the new cyanogenmod alpha version. Wifi still working fine only sd card wasn't recognized for which I downloaded the fix which is available in the cyanogen thread.
After installing the fix wifi was gone again.
I restored my backup I had made after upgrading to lollipop but now WiFi still isn't working. Is it a hardware problem after all?
That's about it. If you need any logs or any additional information please let me know.
Thanks very much in advance!
letrero said:
That's about it. If you need any logs or any additional information please let me know.
Thanks very much in advance!
Click to expand...
Click to collapse
Dial *#1234# in STOCK Lollipop.
Joku1981 said:
Dial *#1234# in STOCK Lollipop.
Click to expand...
Click to collapse
Did that and I got this:
AP: N900XXUEBOA6
CP: N900XXUEBNL6
CSC: N900SEREBOA6
I did a google search on that code and if I understood right the problem is that MODEM is missing. I tried flashing a few different MODEM files (all for sm-n900 and starting with XX which I believe is my country code).
Result was no connection at all, sim card not being recognized and missing IMEI. Now I am back on stock lollipop (rooted and with trwp) so back to normal besides the WiFi issue.
Wifi is from kernel not the modem .
JJEgan said:
Wifi is from kernel not the modem .
Click to expand...
Click to collapse
oh ok thanks. I am not experienced in that area. I read about kernels too somewhere but didn't really find anyone and also don't know much about it so if you could give some advice I'd highly appreciate it.
So 2 more specific questions on this...
1. Do you think flashing a new kernel might solve this problem?
2. What should I look out for when finding the right kernel?
Again I only have experience rooting and flashing stuff so sorry if I am a little noobish on the subject
Flashing a non stock kernel will trip knox .
If already Knox 0x1 then try the Civato kernel posted in this thread .
http://forum.xda-developers.com/gal...t/rom-civz-flexlollipop-rev1-2-aroma-t2987732
Your problem reads as hardware as you have changed kernel via firmware flashes .
JJEgan said:
Flashing a non stock kernel will trip knox .
If already Knox 0x1 then try the Civato kernel posted in this thread .
http://forum.xda-developers.com/gal...t/rom-civz-flexlollipop-rev1-2-aroma-t2987732
Your problem reads as hardware as you have changed kernel via firmware flashes .
Click to expand...
Click to collapse
Thanks I am super careful on this matters so just to clarify..
install just the kernel or the rom?
It says that it is for the SM-N9005 so will it be compatible since I have the SM-N900?
Thanks again and I can't wait to give it a try
Sorry it is my fault did not realize it was not a 9005 .
So don't flash a 9005 kernel .
Have a look here .
http://forum.xda-developers.com/galaxy-note-3/galaxy-note-3-exynos-android-development
JJEgan said:
Sorry it is my fault did not realize it was not a 9005 .
So don't flash a 9005 kernel .
Have a look here .
http://forum.xda-developers.com/galaxy-note-3/galaxy-note-3-exynos-android-development
Click to expand...
Click to collapse
I already had a look earlier but was mainly looking for roms. Now I believe I found a good kernel which I will try once it's downloaded (slow internet atm:/)
If you don't mind it would be very nice if you could have a quick look at it and tell if I am right or wrong in thinking this one is ok
(http://forum.xda-developers.com/gal...il-6-2015-kernel-n900lollipop-pekaka-t3073666)
EDIT: Flashed that kernel but still no wifi
So I tried flashing various kernels without result. If nobody else has any ideas I guess I will have to take it to a shop and see if I can get it fixed.
Is there anyway to make sure myself if it is hardware or software related?

big Wi-fi problem

Hello everyone.
I have a big wifi problem with my I9505.
I can't turn the wifi on, when I was on AICP the wifi setting screen was stuck with a message "Activating WiFi'
I don't think thait it is a hardware problem because time to time, after a reboot it randomly work until the next reboot.
I've tried to update to the next stock rom with a full wipe and it didn't solved the problem.
Thanks you all for your help and excuse me for my poor english.
maxander said:
Hello everyone.
I have a big wifi problem with my I9505.
I can't turn the wifi on, when I was on AICP the wifi setting screen was stuck with a message "Activating WiFi'
I don't think thait it is a hardware problem because time to time, after a reboot it randomly work until the next reboot.
I've tried to update to the next stock rom with a full wipe and it didn't solved the problem.
Thanks you all for your help and excuse me for my poor english.
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Install this APP and add screenshots.
I have attached five screenshots.
Thanks for your help.
maxander said:
I have attached five screenshots.
Thanks for your help.
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1. Well, you have wrong firmware installed. You will have to flash via ODIN this ONE.
2. Try the WIFI now when finish the boot process.
3. Dial *#1234# when finish the flashing process and tell me what appears if you still without WIFI.
Joku1981 said:
1. Well, you have wrong firmware installed. You will have to flash via ODIN this ONE.
Click to expand...
Click to collapse
Thanks, but the firmware I have installed is more recent, I have downloaded it from here There is no risk to downgrade firmware?
Thanks you.
maxander said:
Thanks, but the firmware I have installed is more recent, I have downloaded it from here There is no risk to downgrade firmware?
Thanks you.
Click to expand...
Click to collapse
Lollipop doesn't work like android KitKat. Everyday people tell me exactly this and "Recent" no means that will work in your device. Downgrade isn't a problem atm coz you are on Lollipop and you want flash Lollipop too.
Thanks you for you help.
I have flashed the firmware you gave me.
Unfortunatly it didn't solved the problem but the wifi worked at the first boot and then after a reboot I can't switch it back on.
I really don't understant what's the problem with my phone.
[EDIT] I have attached screenshots from phone info.
Thanks a gain for your help.
maxander said:
Thanks you for you help.
I have flashed the firmware you gave me.
Unfortunatly it didn't solved the problem but the wifi worked at the first boot and then after a reboot I can't switch it back on.
I really don't understant what's the problem with my phone.
[EDIT] I have attached screenshots from phone info.
Thanks a gain for your help.
Click to expand...
Click to collapse
It's hardware. You can try to clean the wifi/bluetooth chip in your device. Or you have to find someone who can replace the chip for you.
Lennyz1988 said:
It's hardware. You can try to clean the wifi/bluetooth chip in your device. Or you have to find someone who can replace the chip for you.
Click to expand...
Click to collapse
To clean?
If it's a hardware problem, how it is possible that sometimes it works?
maxander said:
To clean?
If it's a hardware problem, how it is possible that sometimes it works?
Click to expand...
Click to collapse
Because if you are lucky, the antenna is dirty or the contact points are dirty.
Damn, thanks a lot for your help all.
How can I reset the flash counter? Triangle Away can't reset the counter on my phone. (5.0.1)
Do I need to downgrade to kitkat?
i have same issue here, i try custom roms, downgrade an other methods but issue persist, sometimes when reboot wifi turn on and connect, maybe not a hardware problem.
I have sent my S4 to samsung.
joaoks said:
i have same issue here, i try custom roms, downgrade an other methods but issue persist, sometimes when reboot wifi turn on and connect, maybe not a hardware problem.
Click to expand...
Click to collapse
100% hardware.
Can the heat damage the wifi/bluetooth module?
maxander said:
Damn, thanks a lot for your help all.
How can I reset the flash counter? Triangle Away can't reset the counter on my phone. (5.0.1)
Do I need to downgrade to kitkat?
Click to expand...
Click to collapse
No flash counter on Android 4.4.2 and later, so no use for Triangle Away. The big concern now would be tripping the Knox security flag. As long as you haven't attempted to modify the firmware you'll be ok.

[I9505] Wi-fi issue with HOH2 baseband

Hello guys, I have flashed custom ROM based on HOH2 and I also have modem of same firmware, my wi-fi was working fine and it suddenly stopped working during use, Wi-Fi networks are detecting okay, but it doesn't connect with it at all, it does connect sometimes, and provides internet for sometimes, but after a while internet stops working, when I turn off and on again, it just doesn't connect with the wifi network. Is it known issue with HOH2 base & I will need to flash a modem fix or something? Or you are sensing hardware issue?
P.S I always used my phone with care, don't know what happened to the wifi while I was browsing, I hope it's not hardware fault and known issue with this base. Also this issue is on CM ROM as well as I checked, so only doubt is Hardware issue or baseband related?
Does anyone have the solution or I have to repair it?
Alipk52 said:
Does anyone have the solution or I have to repair it?
Click to expand...
Click to collapse
Do a wipe data/factory reset from recovery.
Baseband doesn't affect wifi (Wifi relies on Kernel). Baseband is used by RIL. Have you tried Uzair40's suggestion ?
I downgraded completely to GN2 KitKat firmware through a tutorial and edited firmware posted here, and WiFi is working fine with it, i then upgraded to lollipop again and the problem reappeared (OH2 baseband/Kernel/Bootloader), so i switched back to GN2 again. Guess what, i think my device don't want me to upgrade anymore :/
Uzair40 said:
Do a wipe data/factory reset from recovery.
Click to expand...
Click to collapse
Yes, i always do that when any such issue comes out, but it didn't fixed the WiFi..
Alipk52 said:
Yes, i always do that when any such issue comes out, but it didn't fixed the WiFi..
Click to expand...
Click to collapse
what i would do now is :
- flash HOH2 without auto-reboot in ODIN
- reboot manualy in download mode
- flash HOH2 again with auto-reboot in ODIN
- let the rom completely boot
- reboot in recovery and do the factory reset
if you have the time, try this. If it dosen't work, try flashing another Kernel (Kushan, Hulk, or another TW compatible one..)
I have tried all of the mentioned kernels and most importantly
Do you have this problem in any rom?
Alipk52 said:
I have tried all of the mentioned kernels and most importantly
Click to expand...
Click to collapse
Can you post the link of the tuturial you followed to downgrade please
Alipk52 said:
I downgraded completely to GN2 KitKat firmware through a tutorial and edited firmware posted here, and WiFi is working fine with it, i then upgraded to lollipop again and the problem reappeared (OH2 baseband/Kernel/Bootloader), so i switched back to GN2 again. Guess what, i think my device don't want me to upgrade anymore :/
Click to expand...
Click to collapse
My wifi didn't work on some Lollipop firmware. Did you try different Lollipop modems?
Lennyz1988 said:
My wifi didn't work on some Lollipop firmware. Did you try different Lollipop modems?
Click to expand...
Click to collapse
Nope Because i don't wanted to test other Modems based on Lollipop, but can you recommend me the latest working Lollipop modems that has no WiFi & LTE issues?
JuanParce said:
Do you have this problem in any rom?
Click to expand...
Click to collapse
Yes it appeared in every lollipop ROM including CM/GE etc as well as TW, but since i downgraded to KitKat, the issue disappeared
gttt4 said:
Can you post the link of the tuturial you followed to downgrade please
Click to expand...
Click to collapse
Yes sure here is the link:
http://forum.xda-developers.com/galaxy-s4/general/i9505-downgrade-5-0-lollipop-to-4-4-2-t3052472

Wifi greyed-out after lollipop update on SM-9005

Hi guys
I have run into little problem that I'm hoping learned members here can help me with.
I have a Note 3 SM-9005 that was running Kitkat 4.4.2 and I got it updated to 5.0 from a mobile repair guy. Everything looked smooth until I got home and noticed that now the WiFi does not work anymore. It always stays greyed out and never turns on.
I have tried turning on download booster, smartswitch, nothing helps. I have wiped cache, wipe data / factory reset but that's of no help.
Can you please help me get my WiFi working again.
Many thanks.
Cheers
Boot into download to confirm that the model # is sm-n9005. Is the phone running the latest bootloader and modem?
gr8leo87 said:
Hi guys
I have run into little problem that I'm hoping learned members here can help me with.
I have a Note 3 SM-9005 that was running Kitkat 4.4.2 and I got it updated to 5.0 from a mobile repair guy. Everything looked smooth until I got home and noticed that now the WiFi does not work anymore. It always stays greyed out and never turns on.
I have tried turning on download booster, smartswitch, nothing helps. I have wiped cache, wipe data / factory reset but that's of no help.
Can you please help me get my WiFi working again.
Many thanks.
Cheers
Click to expand...
Click to collapse
If you know how to reflash a firmware via Odin it's the way on it.
Yumiko87 said:
If you know how to reflash a firmware via Odin it's the way on it.
Click to expand...
Click to collapse
Should a reinstall be enough? Can you guide me which file should I flash in case the phone was flashed with a wrong firmware previously?
Wondering if following screenshots are of any help figuring out what's up with the firmware update mishap?
Screenshot showing latest firmware available from Phone Info app.
Try look at this at Sam mobile:
N9005DXUGBOK3
It's the usual update firmware of lollipop.
Sent from my SM-N930F using Tapatalk
audit13 said:
Boot into download to confirm that the model # is sm-n9005. Is the phone running the latest bootloader and modem?
Click to expand...
Click to collapse
I can confirm the model is indeed SM9005 however I'm unsure about the other two things. Can you please point me to where I should be looking for that information?
Thanks
Yumiko87 said:
Try look at this at Sam mobile:
N9005DXUGBOK3
It's the usual update firmware of lollipop.
Sent from my SM-N930F using Tapatalk
Click to expand...
Click to collapse
That's the UK version isn't it? Should I just grab that file and use Odin to flash right?
Would it be compatible with my phone which has a UAE version installed currently?
Ok just checked. It looks to be the Phillipines/Singapore/Malaysia/Thailand version. With some of them branded. Not sure which one I should be picking up?
The stock ROM may be slightly different for each country but you can try the latest Singapore version.
http://www.sammobile.com/firmwares/database/SM-N9005/
Yumiko87 said:
Try look at this at Sam mobile:
N9005DXUGBOK3
It's the usual update firmware of lollipop.
Sent from my SM-N930F using Tapatalk
Click to expand...
Click to collapse
audit13 said:
The stock ROM may be slightly different for each country but you can try the latest Singapore version.
http://www.sammobile.com/firmwares/database/SM-N9005/
Click to expand...
Click to collapse
Thanks
Will it trip Knox? As I would be putting a SIN firmware on a XSI (UAE) handset?
Flashing a stock rom will not trip Knox.
Personally, unless there is warranty left on the phone, I wouldn't worry about tripping the Knox counter.
audit13 said:
Flashing a stock rom will not trip Knox.
Personally, unless there is warranty left on the phone, I wouldn't worry about tripping the Knox counter.
Click to expand...
Click to collapse
Thanks for your reply.
I have also just noticed that the WiFi hotspot (tethering) doesn't work either.
I downloaded the latest XSI (UAE) firmware and installed it using Odin. But the problem still persists.
Should I try downloading and installing a Singapore firmware?
Is there a possibility that this phone is actually a carrier branded phone and was later debranded and that's why it's having this problem?
Please help life is difficult without Wifi
Does Bluetooth work? It's possible that the phone has a defective wifi chip. I have two galaxy s4 phones that have dead wifi chips but everything else works.
You can try flashinga another country's firmware but not sure if that will help.
Do you have a backup of the efs folder?
audit13 said:
Does Bluetooth work? It's possible that the phone has a defective wifi chip. I have two galaxy s4 phones that have dead wifi chips but everything else works.
You can try flashinga another country's firmware but not sure if that will help.
Do you have a backup of the efs folder?
Click to expand...
Click to collapse
Yes the bluetooth works.
The phone's WiFi was working fine before being updated to Lollipop.
No I got it updated from a phone repair guy before I got my hands dirty and put the new firmware my self. So no efs folder backup, unfortunately.
Hmm without knowing what the repair person did to the phone or how the update was performed, it's possible something went wrong during the flash process. Does the phone show the correct imei and MAC address?
audit13 said:
Hmm without knowing what the repair person did to the phone or how the update was performed, it's possible something went wrong during the flash process. Does the phone show the correct imei and MAC address?
Click to expand...
Click to collapse
He did it in front of me and from memory I can tell that he took a firmware file and used a software (probably Odin) to flash it in download mode.
The phone does show the correct IMEI as written under the battery spot and in device info does show a WiFi mac addresd however I'm unsure how to verify if that may be the correct one.
I have browsed Google and found few other people's posts on different forums who have this exact same problem. Someone suggested that I should reflash the firmware with bootloader checked using Odin.
Do you think it may be of help?
I have just discovered that the serial number on the back of the phone under battery is different from what is reported by the device.
Does this give any hint to what may be the issue?

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