i9505 loses wifi connection again and again - Galaxy S 4 Q&A, Help & Troubleshooting

Hey guys,
I'm using a i9505 as a media device at home. As opposed to all my other devices this phone loses its connection often every few minutes and also often doenst reconnect itsself. Its super annoying. I cant stream nothing or make a internet call.
Has anyone any idea? Flash a modem?
I'm on LOS 16.1

slev!n said:
Has anyone any idea? Flash a modem?
Click to expand...
Click to collapse
Flashing a modem won't hurt. You should be on the last one for your device anyway.

Strephon Alkhalikoi said:
Flashing a modem won't hurt. You should be on the last one for your device anyway.
Click to expand...
Click to collapse
Does it really not matter whether I download the variant of my country (...HPK2) or the latest without my country code (... HQK1)?

slev!n said:
Does it really not matter whether I download the variant of my country (...HPK2) or the latest without my country code (... HQK1)?
Click to expand...
Click to collapse
Your carrier stopping at HPK2 simply means they didn't bother putting any work into what to them is a minor update. HQK1 will work on your device without a problem.

Hey again, I flashed the latest STOCK I could find on my i9505. But with STOCK i even cant enable wifi. I already did a factory resst but it doenst help.
Should I try flashing any modem? Or what option do I still have?

slev!n said:
Hey again, I flashed the latest STOCK I could find on my i9505. But with STOCK i even cant enable wifi. I already did a factory resst but it doenst help.
Should I try flashing any modem? Or what option do I still have?
Click to expand...
Click to collapse
If you unpack the ROM package I believe you will find a .bin file for the wifi you can flash in Odin.

Related

[Q] i9505 - No reception, black screenfreeze, no sound

Hey all, i got this serious problem.
I've flashed most of the cutom roms right after buying the phone but at some moment i decided i wanted to return to stock again as the phone was behaving weird. I did, was a TNL 4.3 dutch stock rom. After some months i began to encounter no reception problems, it first started once a week for a whole day then it was 3 days problems 1 day reception. I then decided to flash a new 4.4 custom rom to see if it solves the issue but it didnt, i tried to flash a 4.3 rom and then the no sound/black screen/ phone dialer freezes started to occur. I flashed the 4.4 UFNA1 modem, it still persists, i flashed the nightly 4.4 rom and reflashed the UFNA1 modem twice (which was done correctly) and i still have no sound etc... What am i doing wrong here? I feel terrible as i also have no warranty left ofcourse.. Btw. I tried flashing to several stock roms by ODIN which coused the program to freeze and the phone went into a bootloop, which could be fixed by just flashing a custom recovery, and after that ofcourse a custom rom.. Very strange! Someone has an idea??
thanks
Can anyone help me?
kilkil said:
Can anyone help me?
Click to expand...
Click to collapse
Download and extract this file then flash the .Tar file via odin by selecting CP
Repulsa said:
Download and extract this file then flash the .Tar file via odin by selecting CP
Click to expand...
Click to collapse
It actually worked. Thanks!
There's only this thing, which i can't test atm, but the sim reception problem i talked about, will that be fixed too?? That's the biggest issue and iv've read a lot about it on the net, nobody could seem to fix it. Lots of em said it was an internal error which got fixed by their warranty (they say they got new phones, up till 3 times..) They tried replacing sim/sd bay which didn't solve a thing. Anyone else experiencing this problem and got it fixed??
thanks
kilkil said:
It actually worked. Thanks!
There's only this thing, which i can't test atm, but the sim reception problem i talked about, will that be fixed too?? That's the biggest issue and iv've read a lot about it on the net, nobody could seem to fix it. Lots of em said it was an internal error which got fixed by their warranty (they say they got new phones, up till 3 times..) They tried replacing sim/sd bay which didn't solve a thing. Anyone else experiencing this problem and got it fixed??
thanks
Click to expand...
Click to collapse
Try to change the modem ,base from your countryprovider mate , and feel free to check it from here which Modem you need .then Download the modem from here and try to Set your apn as well / and try to Change the network mode to GSM/WCDM or something . Lastly hit that thanks button for me
Repulsa said:
Try to change the modem ,base from your countryprovider mate , and feel free to check it from here which Modem you need .then Download the modem from here and try to Set your apn as well / and try to Change the network mode to GSM/WCDM or something . Lastly hit that thanks button for me
Click to expand...
Click to collapse
Hey, didn't i just flash a modem? Which fixed the sound/freeze bug etc? What if i reflash another (4.3) one and get that old problem again? (im on 4.4.2) I tried selected gsm/lte/wcdma settings manually, the phone was totally dead. My little brother who owns exactly the same phone and carrier (tmobile) have had 0 problems with his phone, he never touched it though and only recently upgraded to 4.3 by KIES. I tried switching out sim cards and my card worked on his phone, but his card didn't work on mine.
kilkil said:
Hey, didn't i just flash a modem? Which fixed the sound/freeze bug etc? What if i reflash another (4.3) one and get that old problem again? (im on 4.4.2) I tried selected gsm/lte/wcdma settings manually, the phone was totally dead. My little brother who owns exactly the same phone and carrier (tmobile) have had 0 problems with his phone, he never touched it though and only recently upgraded to 4.3 by KIES. I tried switching out sim cards and my card worked on his phone, but his card didn't work on mine.
Click to expand...
Click to collapse
You can Flash any GSM modem you like mate and The file i gave you Which solve your Sound issue was the one i repacked GSM+LTE combined packaged. and about the Network Mode , like i said choose one then reboot (Play with it). and make sure to setup your APN.
Repulsa said:
You can Flash any GSM modem you like mate and The file i gave you Which solve your Sound issue was the one i repacked GSM+LTE combined packaged. and about the Network Mode , like i said choose one then reboot (Play with it). and make sure to setup your APN.
Click to expand...
Click to collapse
I will look into this, thanks for your time!
kilkil said:
I will look into this, thanks for your time!
Click to expand...
Click to collapse
We already fixed the Sound problem and Im sure that signal Dropping issue can fix it easy just flashing a different modem/ or setup the right APN.
Hey all, the XXUFNA5 modem helped out great, untill today where i'm getting no reception at all again.. i'm on the Google Edition 4.4.2 rom prerooted for about 3 days. My speeds and reception were great before this and had no sound/freezing issues aswell. Anybody know what to do?? If i look in the REF modem topic, it's not showing any new modems? Am i missing something? Thanks in advance!!!
Edit* it seems in Holland they are using this modem -> I9505XXUFNC4
Cant find it anywhere though, any tips??
Thanks
kilkil said:
Hey all, the XXUFNA5 modem helped out great, untill today where i'm getting no reception at all again.. i'm on the Google Edition 4.4.2 rom prerooted for about 3 days. My speeds and reception were great before this and had no sound/freezing issues aswell. Anybody know what to do?? If i look in the REF modem topic, it's not showing any new modems? Am i missing something? Thanks in advance!!!
Edit* it seems in Holland they are using this modem -> I9505XXUFNC4
Cant find it anywhere though, any tips??
Thanks
Click to expand...
Click to collapse
Come on guys, not one reply? This is urgent, need some help!
I'm having this reception problem ever since I got this phone from my friend overseas I tried everything flash stock ROM ,change modems, flash custom roms and still no signal I tried different Sim cards also, I'm guessing maybe something is wrong with the main board? So I just gave up and started using it as a media phone alone

[Q] No Audio

Hello, a few days ago, my brother rooted his galaxy S4 with Odin, then he decided to go back to the stock version without root permission. But during the installation of the firmware, the computer is turned off. So I decided to try again to install the firmware with Odin. The installation went fine, but the audio and the wi-fi didn't work. So I decided to install a recovery (jflte cwm 6.0.5.0) and install the latest nightly of CyanogenMod 11 Now the wi-fi works perfectly, but the audio doesn't work. I have done many tests reading on the forum, I also changed kernel but nothing.
Can anyone help me? Thanks in advance!
Costantinus said:
Hello, a few days ago, my brother rooted his galaxy S4 with Odin, then he decided to go back to the stock version without root permission. But during the installation of the firmware, the computer is turned off. So I decided to try again to install the firmware with Odin. The installation went fine, but the audio and the wi-fi didn't work. So I decided to install a recovery (jflte cwm 6.0.5.0) and install the latest nightly of CyanogenMod 11 Now the wi-fi works perfectly, but the audio doesn't work. I have done many tests reading on the forum, I also changed kernel but nothing.
Can anyone help me? Thanks in advance!
Click to expand...
Click to collapse
I am facing the same problem, I've been running CM 11 nightlies for a looong time though.
I hope that we somehow can get an easy fix for this.
All audio
For you guys, does all of your audio don't work, like you can't call, play YouTube or music?
Lakajadiwa said:
For you guys, does all of your audio don't work, like you can't call, play YouTube or music?
Click to expand...
Click to collapse
Yes, the dialer doesn't work, in the audio settings I can't hear the different ring tones. If I raise the volume up you I can't hear the classic " beep " .
So completely without audio.
Thank god, I thought I was the only one, no fix either as far as i know. Looked on the internet for one for an hour yesterday too
Costantinus said:
Yes, the dialer doesn't work, in the audio settings I can't hear the different ring tones. If I raise the volume up you I can't hear the classic " beep " .
So completely without audio.
Click to expand...
Click to collapse
Yea same here.. Hopefully we will find a fix soon.
My sound came back yesterday, but disappeared this morning again, sadly.
FOUND IT!
Neo3000x said:
Yea same here.. Hopefully we will find a fix soon.
My sound came back yesterday, but disappeared this morning again, sadly.
Click to expand...
Click to collapse
Its a modem file that is responsible for it,
http://forum.xda-developers.com/showthread.php?p=50786512#post50786512
If you cannot find your modem file just type in your model name with modem to goodle, install with ODIN good luck!
Lakajadiwa said:
Its a modem file that is responsible for it,
http://forum.xda-developers.com/showthread.php?p=50786512#post50786512
If you cannot find your modem file just type in your model name with modem to goodle, install with ODIN good luck!
Click to expand...
Click to collapse
Hmm I just installed the latest modem on my phone today, trying to fix it - But it didn't work.
I installed XXUGNH8 (latest) - Which one did you install?
Match
You need one to match your phone my was a sgh-i377m modem so an mvlufnc1
Lakajadiwa said:
You need one to match your phone my was a sgh-i377m modem so an mvlufnc1
Click to expand...
Click to collapse
Well, I just have the international GT-I9505, so I think I have the right one installed?
Neo3000x said:
Well, I just have the international GT-I9505, so I think I have the right one installed?
Click to expand...
Click to collapse
Well if it doesn't work it probably is the wrong one.
Lakajadiwa said:
Well if it doesn't work it probably is the wrong one.
Click to expand...
Click to collapse
As I have the international model, I am quite sure that it is the right one, and sammobile.com agrees with me.
PDA: I9505XXUFNB9
CSC: I9505NEEFNB2
MODEM: I9505XXUFNB9
Neo3000x said:
As I have the international model, I am quite sure that it is the right one, and sammobile.com agrees with me.
PDA: I9505XXUFNB9
CSC: I9505NEEFNB2
MODEM: I9505XXUFNB9
Click to expand...
Click to collapse
damn, maybe try different modems idk..... Cause I think that the modem is the problem, we'll at least for me it was.
I tried to flash different modem with Odin, but nothing.
I tried:
XXUGNG2
XXUGNE5
XXUBMF8
But no, the audio doesn't work!
Hi,
Yes the problem is related to modem! But to get it working again it's not necessary to go to the latest modem, actually it may not be the solution! Try installing the Galaxy Info app from Play Store ( https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo) and check your bootloader version, with it you'll have to flash the same version of modem as the bootloader you have.
If that doesn't solve the problem, you'll have to upgrade your modem, just change one version above and keep trying until it works. I know it's tedious, but that's the method I use and always worked .
~Lord
XxLordxX said:
Hi,
Yes the problem is related to modem! But to get it working again it's not necessary to go to the latest modem, actually it may not be the solution! Try installing the Galaxy Info app from Play Store and check your bootloader version, with it you'll have to flash the same version of modem as the bootloader you have.
If that doesn't solve the problem, you'll have to upgrade your modem, just change one version above and keep trying until it works. I know it's tedious, but that's the method I use and always worked .
~Lord
Click to expand...
Click to collapse
I've installed the Galaxy info app, and my bootloader was equal to XXUGNG2.
So, I've flashed with Odin the GNG2 modem first, then the 4 and the 8. But the audio still doesn't work.
So, I've flashed with the GNG8 modem his correlated bootloader, but the problem still persists. Any ideas?
Costantinus said:
I've installed the Galaxy info app, and my bootloader was equal to XXUGNG2.
So, I've flashed with Odin the GNG2 modem first, then the 4 and the 8. But the audio still doesn't work.
So, I've flashed with the GNG8 modem his correlated bootloader, but the problem still persists. Any ideas?
Click to expand...
Click to collapse
Hi,
Not many ideas here. But anyway, just in case you want to try I'm using XXUFNB8 bootloader with the XXUFNB8 modem. If you are running a bootloader newer than mine don't even consider changing your bootloader, but maybe the modem may help.
If you are sure you tried as many possible combinations of BL and MDM, then try flashing another zip, as this one may be corrupted...
~Lord
"Dream On! Dream Until Your Dreams Come True!" - Dream On (Aerosmith)
Sent from my GT-I9505
My sound still comes and goes as it pleases.. It seems like it is having its own life - Sometimes it stays for hours, then goes away for 10 minutes and sometimes it's the other way around.
Anyway, I've tried the phone-info app, and my bootloader (as expected) is: I9505XXUFNB9.
My Baseband version is also I9505XXUFNB9. PDA and CSC are both blank.
It still bugs me a lot I must say...
up, same problem here.
I've tried everything.. Any news?
So.. Just wanted to update you guys..
I've now been "with sound" for about 20 hours, which is a new record, and I think that it will stay.
What I did:
Wiped EVERYTHING - Internal SD, External SD, Data, etc.
Flashed EuroSkank 22-10-2014
Crossed my fingers
...
Payoff!

HELP! WiFi Issues

Sorry I'm a noon, don't do all those font sizes and colours and pictures aha but basically... I've been on CyanogenMod for about a year now and have never had WiFi issues. Been using cm12 nightlies for most of this year with no problem however, after updating my nightly the past two days I've been experiencing WiFi Drops happening every min and a half or so. So annoying. I've used Wifix apps etc, no luck. I've reverted to old night lies I used to run without any problems however the problem stays. I've consider flashing back to TouchWiz to see if that helps it but I really don't want to
Can someone please help me. My phone is on contract and my bill is overdue so I won't have mobile data until it's cleared (around June) so if I don't have WiFi, I'm screwed.
S4
tyrelldk_ said:
Sorry I'm a noon, don't do all those font sizes and colours and pictures aha but basically... I've been on CyanogenMod for about a year now and have never had WiFi issues. Been using cm12 nightlies for most of this year with no problem however, after updating my nightly the past two days I've been experiencing WiFi Drops happening every min and a half or so. So annoying. I've used Wifix apps etc, no luck. I've reverted to old night lies I used to run without any problems however the problem stays. I've consider flashing back to TouchWiz to see if that helps it but I really don't want to
Can someone please help me. My phone is on contract and my bill is overdue so I won't have mobile data until it's cleared (around June) so if I don't have WiFi, I'm screwed.
S4
Click to expand...
Click to collapse
Have you tried flashing a new modem? This generally fixes wifi (and sound issues if there are any)
I barely know what a modem is haha but if that's the case, I'll try today.
Here you have a list of modems. Read the topic as it also has some info and the flashing guide.
You need to go to sammobile firmware checker and input your phone model, country and carrier. Then it will show you the correct firmware for your country and carrier. Based on that, download the modem. Make sure you get the latest modem. If you can't find the latest modem on the linked thread, there was another thread with all the latest modems, but I can't seem to find it anymore.
GDReaper said:
Here you have a list of modems. Read the topic as it also has some info and the flashing guide.
You need to go to sammobile firmware checker and input your phone model, country and carrier. Then it will show you the correct firmware for your country and carrier. Based on that, download the modem. Make sure you get the latest modem. If you can't find the latest modem on the linked thread, there was another thread with all the latest modems, but I can't seem to find it anymore.
Click to expand...
Click to collapse
I'm on 5.02 CM12, I downloaded the latest modem for my GT-I9505 which matched the firmware code for a 4.4.2 S4 however still no luck ffs. This is really annoying, i don't know how my WiFi could jist shut off on me like that :/. Looks like I'm going to have to buy myself a new phone then. Can't use my mobile data for a couple months as my carrier has blocked me until I pay off my bill and now with my wifi disconnecting every 2 mins, I basically cannot use the internet. So frustrated.
I've flashed new nightlies, changed baseband versions, factory reset my phone and still no luck. What makes things worse is i cannot see any other threads with people in my postition so help is so minimal :/. Annoyed is an understatement.
tyrelldk_ said:
Sorry I'm a noon, don't do all those font sizes and colours and pictures aha but basically... I've been on CyanogenMod for about a year now and have never had WiFi issues. Been using cm12 nightlies for most of this year with no problem however, after updating my nightly the past two days I've been experiencing WiFi Drops happening every min and a half or so. So annoying. I've used Wifix apps etc, no luck. I've reverted to old night lies I used to run without any problems however the problem stays. I've consider flashing back to TouchWiz to see if that helps it but I really don't want to
Can someone please help me. My phone is on contract and my bill is overdue so I won't have mobile data until it's cleared (around June) so if I don't have WiFi, I'm screwed.
S4
Click to expand...
Click to collapse
GDReaper said:
Have you tried flashing a new modem? This generally fixes wifi (and sound issues if there are any)
Click to expand...
Click to collapse
Hi mate ,
Try flashing a new modem it never hurts but wifi is kernel control , see what kernel you had before when it was working good ,check if it was changed in the las upgrade... reflash old kernel again or try a different one
MAX 404 said:
Hi mate ,
Try flashing a new modem it never hurts but wifi is kernel control , see what kernel you had before when it was working good ,check if it was changed in the las upgrade... reflash old kernel again or try a different one
Click to expand...
Click to collapse
I really can't remember what date I was on when it was working fine
tyrelldk_ said:
I really can't remember what date I was on when it was working fine
Click to expand...
Click to collapse
Go back to stock firmware if you haven't updated the bootloader.
If it works fine on stock, then re-root your phone and try again with CM12.
GDReaper said:
Go back to stock firmware if you haven't updated the bootloader.
If it works fine on stock, then re-root your phone and try again with CM12.
Click to expand...
Click to collapse
Updated by bootloader earlier today :s was told I had to do that to flash a new modem... Can/should I still flash back to touchwiz and if so, how do I? And say I go back to touchwiz and it Stoll doesn't work, my phone is basically unusable isn't it?
tyrelldk_ said:
Updated by bootloader earlier today :s was told I had to do that to flash a new modem... Can/should I still flash back to touchwiz and if so, how do I? And say I go back to touchwiz and it Stoll doesn't work, my phone is basically unusable isn't it?
Click to expand...
Click to collapse
Hi ,
yes can still flash an stock rom....but why you do not try first
flash a different modem
flash a different kernel
If every thing else fails flash a stock rom, what model S4 do you have I9505?
there are a few kernels around like
http://forum.xda-developers.com/showthread.php?t=2590246
and modems check here
http://forum.xda-developers.com/showpost.php?p=50965837&postcount=2627
Back up first most important EFS folder
http://forum.xda-developers.com/android/apps-games/app-samsung-efs-imei-partition-backup-t2955110
MAX 404 said:
Hi ,
yes can still flash an stock rom....but why you do not try first
flash a different modem
flash a different kernel
If every thing else fails flash a stock rom, what model S4 do you have I9505?
there are a few kernels around like
http://forum.xda-developers.com/showthread.php?t=2590246
and modems check here
http://forum.xda-developers.com/showpost.php?p=50965837&postcount=2627
Back up first most important EFS folder
http://forum.xda-developers.com/android/apps-games/app-samsung-efs-imei-partition-backup-t2955110
Click to expand...
Click to collapse
I flashed a modem *read above* and nothing's happened... I even tried flashing WiFi fixes and it hasn't done anything
I didn't know kernels could fix a WiFi problem, I might try that.
tyrelldk_ said:
I flashed a modem *read above* and nothing's happened... I even tried flashing WiFi fixes and it hasn't done anything
I didn't know kernels could fix a WiFi problem, I might try that.
Click to expand...
Click to collapse
WIFI is kernel controlled...
MAX 404 said:
WIFI is kernel controlled...
Click to expand...
Click to collapse
Hi, I flashed that kernel and the same problem is occuring D'you have any other ideas? Sorry if i'm being annoying
tyrelldk_ said:
Hi, I flashed that kernel and the same problem is occuring D'you have any other ideas? Sorry if i'm being annoying
Click to expand...
Click to collapse
Check and see i if power save is on , if so switch it off
Dial *#0011#
This will take you into the Service Mode
Press the left bottom key new menu will show
Select Wifi... Once in the Wifi settings , turn it off...
Do you have to refresh the password? just in case check this
Go to /system
Open the built.prop
search for ro.securestorage.support
If it says true , change to false
Save and reboot
Also if you are skill check the antenna cable inside the phone..maybe is just loose
MAX 404 said:
Check and see i if power save is on , if so switch it off
Dial *#0011#
This will take you into the Service Mode
Press the left bottom key new menu will show
Select Wifi... Once in the Wifi settings , turn it off...
Do you have to refresh the password? just in case check this
Go to /system
Open the built.prop
search for ro.securestorage.support
If it says true , change to false
Save and reboot
Also if you are skill check the antenna cable inside the phone..maybe is just loose
Click to expand...
Click to collapse
Grrr... Power save is off
When I dial that code, the phone does nothing...does the fact that I cannot turn on my mobile data stop me from dialing this code? Also, does the fact that I'm on cm12 and not on touchwiz stop me from using this?
& I have no password on my phone and there was no ro.securestorage.support ... I found this "ro.wifi.channels=" if that helps?
tyrelldk_ said:
Grrr... Power save is off
When I dial that code, the phone does nothing...does the fact that I cannot turn on my mobile data stop me from dialing this code? Also, does the fact that I'm on cm12 and not on touchwiz stop me from using this?
& I have no password on my phone and there was no ro.securestorage.support ... I found this "ro.wifi.channels=" if that helps?
Click to expand...
Click to collapse
The code should work maybe is because CM , well last option would be to flash a stock rom and see how it goes........how you know power save is off?
BTW in your wifi setting there is no proxy ? did you try to delete settings and do a new one?
MAX 404 said:
The code should work maybe is because CM , well last option would be to flash a stock rom and see how it goes........how you know power save is off?
BTW in your wifi setting there is no proxy ? did you try to delete settings and do a new one?
Click to expand...
Click to collapse
Damn really didn't want it to get to this, will I lose root access too?
Isn't power save automatically off in the settings? It gives you the option to use it in low battery
& I don't know how to check if there is or isn't proxy. What do you mean by deleting settings?
tyrelldk_ said:
Updated by bootloader earlier today :s was told I had to do that to flash a new modem... Can/should I still flash back to touchwiz and if so, how do I? And say I go back to touchwiz and it Stoll doesn't work, my phone is basically unusable isn't it?
Click to expand...
Click to collapse
If you updated bootloader then you can't go back to kitkat roms. Only the 5.0 lollipop roms. But Samsung hasn't released the official update in all countries.
If it still doesn't work, even with official firmware, then it might be hardware related. Maybe even your wifi router.
MAX 404 said:
Hi ,
yes can still flash an stock rom....but why you do not try first
flash a different modem
flash a different kernel
If every thing else fails flash a stock rom, what model S4 do you have I9505?
there are a few kernels around like
http://forum.xda-developers.com/showthread.php?t=2590246
and modems check here
http://forum.xda-developers.com/showpost.php?p=50965837&postcount=2627
Back up first most important EFS folder
http://forum.xda-developers.com/android/apps-games/app-samsung-efs-imei-partition-backup-t2955110
Click to expand...
Click to collapse
He said he tried other modems.
GDReaper said:
If you updated bootloader then you can't go back to kitkat roms. Only the 5.0 lollipop roms. But Samsung hasn't released the official update in all countries.
If it still doesn't work, even with official firmware, then it might be hardware related. Maybe even your wifi router.
Click to expand...
Click to collapse
Hi, i'm going to flash lollipop touchwiz onto my phone using this http://www.ibtimes.co.uk/android-5-...-s4-lte-how-manually-install-via-odin-1492230.
Anything i should know/do before doing this?
Did you flash an alternate kernel?
Wifi issues are often kernel related. Not always...but often.

Can't get signal

Hi there,
So, suddenly, my Samsung Galaxy S4 (i9500) stopped getting signal.
It shows my gsm carrier, but do not get any signal.
When I tried to use RegionLock Away, it shows me this error:
"Could not locate csc data you could try flashing a csc package to correct this."
And when I try to make a call, it shows: Mobile network not available.
And solution for this?
fucore said:
Hi there,
So, suddenly, my Samsung Galaxy S4 (i9500) stopped getting signal.
It shows my gsm carrier, but do not get any signal.
When I tried to use RegionLock Away, it shows me this error:
"Could not locate csc data you could try flashing a csc package to correct this."
And when I try to make a call, it shows: Mobile network not available.
And solution for this?
Click to expand...
Click to collapse
Are u using STOCK rom? Install this APP and add some screenshots pls.
Joku1981 said:
Are u using STOCK rom? Install this APP and add some screenshots pls.
Click to expand...
Click to collapse
No. I got Lollipop and than started to get the error.
I'm downloading one stock here, but I don't know if it is the right one. I got this phone from a friend.
After I flash stock, I'm gonna come here and edit this post.
Thank you dude, cuz I'm going crazy.
Where'd you get Lollipop, OTA, or did you flash it? It sounds like you probably flashed an incorrect modem.
Morningstar said:
Where'd you get Lollipop, OTA, or did you flash it? It sounds like you probably flashed an incorrect modem.
Click to expand...
Click to collapse
I flash the one that the author post on the topic.
Well, I flashed the stock and now it doesnt even recognize my carrier and IMEI is null.
There is any way to find out where the phone came from so I could download the stock?
@edit
Just flash one stock rom called: GT-I9500 imei fix.
Show an IMEI that isnt mine, I'm able to see that I have voice mail, but can't get signal.
Anything?
Sorry for the up topic, but anyone?
You shouldn't ever be messing with anything involving IMEI repair unless you are sure that you need it, and you know exactly what you're doing.
If the problem appeared without you doing anything then you got an hardware failure.
Replace the emmc chip if it's an imei problem.

Simple inquiry about WiFi when screen's off

Hi there, fellow enthusiasts!
My phone doesn't connect to WiFi when the screen is off. As soon as I turn it on, it's good to go; connects within 2 seconds or so which is great. I'm just wondering why it doesn't connect to WiFi when the screen is off. I've tried every option possible and for well over a year now it just doesn't go thru with screen off automatically. I've switched ROMs, done stock, you name it.
It's annoying to have to take the phone out of my pocket, wake it up, and then check my notifications; it should be doing this automatically. I know it does this with data fine but I don't use my phone like that, I'm a WiFi only kinda guy.
Help me troubleshoot. Any help would be of so much help. Thanks!
totbl said:
Hi there, fellow enthusiasts!
My phone doesn't connect to WiFi when the screen is off. As soon as I turn it on, it's good to go; connects within 2 seconds or so which is great. I'm just wondering why it doesn't connect to WiFi when the screen is off. I've tried every option possible and for well over a year now it just doesn't go thru with screen off automatically. I've switched ROMs, done stock, you name it.
It's annoying to have to take the phone out of my pocket, wake it up, and then check my notifications; it should be doing this automatically. I know it does this with data fine but I don't use my phone like that, I'm a WiFi only kinda guy.
Help me troubleshoot. Any help would be of so much help. Thanks!
Click to expand...
Click to collapse
Install this app and post the screenshots.
https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo
Lennyz1988 said:
Install this app and post the screenshots.
https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo
Click to expand...
Click to collapse
What info are you looking for? Thanks for the quick response.
Also, I found this.
http://forum.xda-developers.com/google-nexus-5/help/wifi-issue-t3059452
Seems to be common enough.
totbl said:
What info are you looking for? Thanks for the quick response.
Also, I found this.
http://forum.xda-developers.com/google-nexus-5/help/wifi-issue-t3059452
Seems to be common enough.
Click to expand...
Click to collapse
I am looking for you modem in combination with your rom and bootloader.
Lennyz1988 said:
I am looking for you modem in combination with your rom and bootloader.
Click to expand...
Click to collapse
Modem: MDM9615M
Bootloader: L720VPUAMF9
ROM: CyanogenMod 12.1-20151012 jfltespr
From what I can gather the WiFi needs to poll more when the screen is off. Once in a blue it'll connect with screen off (may take up to 2 hours) to a known SSID. I'm not concerned about battery life with more polling, honestly. It'd be way more convenient to not have to turn my phone on to connect to an SSID.
I believe it used to work on 4.4 but I can't be sure. That thread I linked to said the behavior started on 5.1 if that's helpful.
totbl said:
Modem: MDM9615M
Bootloader: L720VPUAMF9
ROM: CyanogenMod 12.1-20151012 jfltespr
Click to expand...
Click to collapse
Modem: MDM9615M
This is not your modem. This is the chip inside your phone. I need the modem.
Lennyz1988 said:
Modem: MDM9615M
This is not your modem. This is the chip inside your phone. I need the modem.
Click to expand...
Click to collapse
Oh, sorry about that. I'm guessing you meant the baseband: L720VPUAMDC
totbl said:
Oh, sorry about that. I'm guessing you meant the baseband: L720VPUAMDC
Click to expand...
Click to collapse
Ok
The issue you are having was a common issue, but no one has that issue anymore. If I remember correctly that issue happens when you are running an old modem on new firmware. The wifi disconnects when you turn the screen off.
You are using a 4.2.2. bootloader and a 4.2.2. modem with a Lollipop rom. Why haven't you upgraded to a Lollipop bootloader and modem?
Lennyz1988 said:
Ok
The issue you are having was a common issue, but no one has that issue anymore. If I remember correctly that issue happens when you are running an old modem on new firmware. The wifi disconnects when you turn the screen off.
You are using a 4.2.2. bootloader and a 4.2.2. modem with a Lollipop rom. Why haven't you upgraded to a Lollipop bootloader and modem?
Click to expand...
Click to collapse
haha I honestly don't know. Like I said, I only use my phone with WiFi (Hangouts and Optimum Online = no monthly bill.) I didn't think I needed to upgrade. Which modem do you recommend I upgrade to? I'll report back as soon as I upgrade.
totbl said:
haha I honestly don't know. Like I said, I only use my phone with WiFi (Hangouts and Optimum Online = no monthly bill.) I didn't think I needed to upgrade. Which modem do you recommend I upgrade to? I'll report back as soon as I upgrade.
Click to expand...
Click to collapse
I don't know which modem since this is the section for the i9505. It's a different model. You can also just flash the latest stock rom.
You have to check here, but at least you know what to look for.
http://forum.xda-developers.com/galaxy-s4-sprint
Lennyz1988 said:
Ok
The issue you are having was a common issue, but no one has that issue anymore. If I remember correctly that issue happens when you are running an old modem on new firmware. The wifi disconnects when you turn the screen off.
You are using a 4.2.2. bootloader and a 4.2.2. modem with a Lollipop rom. Why haven't you upgraded to a Lollipop bootloader and modem?
Click to expand...
Click to collapse
I assume I should use the latest: MF9FirmwareAIO and Odin. I'll be right back.
Lennyz1988 said:
I don't know which modem since this is the section for the i9505. It's a different model. You can also just flash the latest stock rom.
You have to check here, but at least you know what to look for.
http://forum.xda-developers.com/galaxy-s4-sprint
Click to expand...
Click to collapse
Same result. Firmware upgraded to latest.
It's not that my WiFi turns off when the phone is asleep. It'll stay on whatever WiFi I'm connected to, but as soon as I am out of range from it, it obviously will disconnect BUT then it doesn't connect to any other WiFi in range unless I turn the screen on first. That thread I linked you to lists the same exact problem.
I appreciate the help.
totbl said:
Same result. Firmware upgraded to latest.
It's not that my WiFi turns off when the phone is asleep. It'll stay on whatever WiFi I'm connected to, but as soon as I am out of range from it, it obviously will disconnect BUT then it doesn't connect to any other WiFi in range unless I turn the screen on first. That thread I linked you to lists the same exact problem.
I appreciate the help.
Click to expand...
Click to collapse
Can you tell me again what your modem is using the app?
lennyz1988 said:
can you tell me again what your modem is using the app?
Click to expand...
Click to collapse
l720vpuamf9
totbl said:
l720vpuamf9
Click to expand...
Click to collapse
Your modem didn't update. Try reflashing the firmware you just flashed. Only this time do it twice. So flash it, reboot phone, flash it again.
Lennyz1988 said:
Your modem didn't update. Try reflashing the firmware you just flashed. Only this time do it twice. So flash it, reboot phone, flash it again.
Click to expand...
Click to collapse
I was on L720VPUAMDC when I made this thread, then after Odin it's on L720VPUAMF9. That's the latest, no? What do you mean it didn't update? Anway, I'll try again twice.
Lennyz1988 said:
Your modem didn't update. Try reflashing the firmware you just flashed. Only this time do it twice. So flash it, reboot phone, flash it again.
Click to expand...
Click to collapse
It's the same as it was before, kind sir.
totbl said:
I was on L720VPUAMDC when I made this thread, then after Odin it's on L720VPUAMF9. That's the latest, no? What do you mean it didn't update? Anway, I'll try again twice.
Click to expand...
Click to collapse
L720VPUAMF9 = Jelly Bean 4.2.2
So not, it's still a very old modem.
http://forum.xda-developers.com/galaxy-s4-sprint/development/rom-stock-od2-odin-flashable-t3133661
Oh *slaps self* I see. I upgraded the modem to NG2. Still the same issue unfortunately. I really thought we had it this time. What else could it be?
Lennyz1988 said:
L720VPUAMF9 = Jelly Bean 4.2.2
So not, it's still a very old modem.
http://forum.xda-developers.com/galaxy-s4-sprint/development/rom-stock-od2-odin-flashable-t3133661
Click to expand...
Click to collapse
*edit* Actually...IT WORKS! It connects to a known WiFi network when the screen is off in exactly 4 minutes. Much better than before where it was not at all or hours. You've been completely helpful, dude. Thank you. I just have one more question, is there anyway for it to poll faster with the screen off? As in, can I get it to connect to an open WiFi network under 4 minutes or instantly?

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