[Q] Signal lost after screen goes dark - Galaxy S 4 Q&A, Help & Troubleshooting

I installed CM 12.1 with gapps on my S4, problem is when my screen goes dark(when pressing power button once or automaticly after 5mins) my signal is gone. When rebooting phone the signal is back or if I quicly do airplane mode on and then off again the signal is also back. So basicly I only have signal when the screen is on and not turned off at any point.
Tried flashing another rom but had same problem, any idea's what it could be?

Probably update your modem and bootloader.

Lennyz1988 said:
Probably update your modem and bootloader.
Click to expand...
Click to collapse
Do you know where to find the lollypop modem for NL? Ive checked and you're probably right, version now is XXUBMGA which is android 4.2.2

bobfakkel said:
Do you know where to find the lollypop modem for NL? Ive checked and you're probably right, version now is XXUBMGA which is android 4.2.2
Click to expand...
Click to collapse
Don't look at that. Just pick a lollipop modem. If you are no satisfied try another lollipop modem.

Lennyz1988 said:
Don't look at that. Just pick a lollipop modem. If you are no satisfied try another lollipop modem.
Click to expand...
Click to collapse
Oh, I looked at google for a NL file and found XXUHOB7 which I then downloaded here on XDA and flashed through Odin. Anyways the problem is solved! Got my signal back ) so thnx for the help

Related

Good modem for Philippines(Globe)

I'm running Golden eye rom. And my baseband is I9505DXUAMDM. The problem is, i'm having trouble with the network. When the phone gets idle, then i use it, it has no network and takes while to have it back in. Idk but when i bought this phone, it was only locked by Globe(sim) which i was using globe as well. So i believe it doesnt have anything to do with that carrier locked thingy. TIA.
nieohl said:
I'm running Golden eye rom. And my baseband is I9505DXUAMDM. The problem is, i'm having trouble with the network. When the phone gets idle, then i use it, it has no network and takes while to have it back in. Idk but when i bought this phone, it was only locked by Globe(sim) which i was using globe as well. So i believe it doesnt have anything to do with that carrier locked thingy. TIA.
Click to expand...
Click to collapse
You need to update the modem in order to fix the dropping issue. and The latest modem for your country is MKE mate. Have a nice day
nieohl said:
I'm running Golden eye rom. And my baseband is I9505DXUAMDM. The problem is, i'm having trouble with the network. When the phone gets idle, then i use it, it has no network and takes while to have it back in. Idk but when i bought this phone, it was only locked by Globe(sim) which i was using globe as well. So i believe it doesnt have anything to do with that carrier locked thingy. TIA.
Click to expand...
Click to collapse
I am using the MJ5 modem on most of the 4.3 and kitkat roms and I am not having any network drops.
Since the 4.3 update, old modems are getting network drops. So you need to update your baseband. Try MJ5.
Btw I'm locked to Globe as well.
Sent from my GT-I9505 using Tapatalk
Repulsa said:
You need to update the modem in order to fix the dropping issue. and The latest modem for your country is MKE mate. Have a nice day
Click to expand...
Click to collapse
Will gonna try. ty
chickentuna said:
I am using the MJ5 modem on most of the 4.3 and kitkat roms and I am not having any network drops.
Since the 4.3 update, old modems are getting network drops. So you need to update your baseband. Try MJ5.
Btw I'm locked to Globe as well.
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
Thanks! I'm still on the likes of staying to TouchWiz based roms for the s4 feel.
Gonna look for the s4 modems.
Click to expand...
Click to collapse
EDIT: Btw, is it ok just to flash the modem right now? No need to reinstall the roms, etc.?
nieohl said:
Will gonna try. ty
Thanks! I'm still on the likes of staying to TouchWiz based roms for the s4 feel.
Click to expand...
Click to collapse
Flash this via odin and this should fix your dropping issue and make sure to choose the right one. or go here and choose the modem you want http://forum.xda-developers.com/showthread.php?t=2192025
f you are having the old bootloader XXUB flash http://www.mediafire.com/download/48r0rgqv25s8968/GSM_Modem_XXUEMFK_and_LTE_Modem_XXUBMH1.rar file with odin by selecting phone.
If you are having the new bootloader XXUD flash http://www.mediafire.com/download/zriv6i5c01lqns6/GSM_Modem_XXUEMFK_and_LTE_Modem_XXUMFK.rar file with odin by selecting phone.
Repulsa said:
Flash this via odin and this should fix your dropping issue and make sure to choose the right one. or go here and choose the modem you want http://forum.xda-developers.com/showthread.php?t=2192025
f you are having the old bootloader XXUB flash http://www.mediafire.com/download/48r0rgqv25s8968/GSM_Modem_XXUEMFK_and_LTE_Modem_XXUBMH1.rar file with odin by selecting phone.
If you are having the new bootloader XXUD flash http://www.mediafire.com/download/zriv6i5c01lqns6/GSM_Modem_XXUEMFK_and_LTE_Modem_XXUMFK.rar file with odin by selecting phone.
Click to expand...
Click to collapse
Yep just download the MKE and MJ5 earlier on that thread.
So, just flash it then? No need to reinstall everything?
nieohl said:
Yep just download the MKE and MJ5 earlier on that thread.
So, just flash it then? No need to reinstall everything?
Click to expand...
Click to collapse
just flash it via odin , and make sure to turn off your phone manually before reaching download mode.

Android 4.4.x

Hi,
I've got an sgs4 lte international version. I've tried to install every single android 4.4.x and all goes fine but after some time I cant recieve call, sms not working, phone reboots etc.
Everytime I did an installation I've made a full wipe.
Am I doing something wrong or are you guys facing the same?
\\Hexch
Note: Omnirom working good but the only issue I am facing is that is eating my battery.
Try Echoe Kit Kat v.2.1
http://forum.xda-developers.com/showthread.php?p=48142489
working good for me
or perhaps a newer modem is necessary
franklin202 said:
Try Echoe Kit Kat v.2.1
http://forum.xda-developers.com/showthread.php?p=48142489
working good for me
or perhaps a newer modem is necessary
Click to expand...
Click to collapse
I am running the newest modem for my device xxxMKF
hexch said:
I am running the newest modem for my device xxxMKF
Click to expand...
Click to collapse
Are you in newest bootloader by any chance?
Sent from my Phone.
Repulsa said:
Are you in newest bootloader by any chance?
Sent from my Phone.
Click to expand...
Click to collapse
I am running: I9505XXUEMKF, this is the newest I've got from samfirmware.
hexch said:
I am running: I9505XXUEMKF, this is the newest I've got from samfirmware.
Click to expand...
Click to collapse
Hi there mate , can you please flash this file with odin by selecting phone.and Make sure you Turn Off your Phone Manually and wait for few sec and press Power+volume down to reach Download mode and flash away.
http://www.mediafire.com/download/zriv6i5c01lqns6/GSM_Modem_XXUEMFK_and_LTE_Modem_XXUMFK.rar
I'm using broodplanks aosp and it's amazing, no reboots no problems.

[Q] 4.4.2 no signal ?

Hi,
if i'm going to flash a 4.4.2 rom no matter which one i don't get a signal.. so i go into system settings - mobile network settings - network operators and choose my provider... then it works... for a few minutes or until i reboot my phone and the signal is gone again.
i'm coming from 4.2.2 and my modem or whatever this is called is: XXUBMF8
on 4.2.2 everything works fine no problems at all...
hope someone can help me
Metera said:
Hi,
if i'm going to flash a 4.4.2 rom no matter which one i don't get a signal.. so i go into system settings - mobile network settings - network operators and choose my provider... then it works... for a few minutes or until i reboot my phone and the signal is gone again.
i'm coming from 4.2.2 and my modem or whatever this is called is: XXUBMF8
on 4.2.2 everything works fine no problems at all...
hope someone can help me
Click to expand...
Click to collapse
The rom could require an updated modem flash through odin. are you flash the stock official rom or customized?
haven't flashed any modem yet so it is the stock modem i guess
Metera said:
haven't flashed any modem yet so it is the stock modem i guess
Click to expand...
Click to collapse
You need to flash either mkf mke or ml1 as long its 4.3 modem inorder to fix dropping issue . which can be found here http://forum.xda-developers.com/showthread.php?t=2192025Have a nice day
Sent from my Phone.
Repulsa said:
You need to flash either mkf mke or ml1 as long its 4.3 modem inorder to fix dropping issue . which can be found here http://forum.xda-developers.com/showthread.php?t=2192025Have a nice day
Sent from my Phone.
Click to expand...
Click to collapse
thanks now it works

[Q] Signal Problem with S5 G900F (i'm goin crazy)

Hi guys I have a problem with my S5 G900F. I can use it only in wifi mode. When i turn it off the network doesn't work. Also i can make call but after that i lose the signal and can't do anything. The only solution (that sometimes work) is to turn on/off the airplane mode to get back the signal or reboot the phone but the network doesn't work in any case.
I already tried about 4 different rom (and flashed also new bootloader and new modem) but nothing worked. Please help me because i'm goin crazy with this !!
Thanks a lot
Did this also happen to your original modem?
Or when did this happen the first time?
sp3d00 said:
Did this also happen to your original modem?
Or when did this happen the first time?
Click to expand...
Click to collapse
I tried to put back the original modem and the original ROM but no changes after all..
Update: i've installed PacMan rom (AOSP) and i can use LTE mode. still got the problem after call: i can't do another call before i reboot or turn on/off airplane mode
R u on Lollipop?
sp3d00 said:
R u on Lollipop?
Click to expand...
Click to collapse
Yes but the problem started also with a kitkat rom...
I tried also to install a rom from Sammobile and also installing another rom from kies. Same situation...
Going back to KitKat and back to Lollipop again doenst fix it?
Bad connection, will answer in a few hours again.
Send from my G900F @ Ressurection Remix using Tapatalk.
sp3d00 said:
Going back to KitKat and back to Lollipop again doenst fix it?
Bad connection, will answer in a few hours again.
Send from my G900F @ Ressurection Remix using Tapatalk.
Click to expand...
Click to collapse
Thx i will try
Please let me know if this helped you with the signal problems.
Send from my G900F @ Ressurection Remix using Tapatalk.
sp3d00 said:
Please let me know if this helped you with the signal problems.
Send from my G900F @ Ressurection Remix using Tapatalk.
Click to expand...
Click to collapse
i've got some trouble going back to kitkat. I've got ext4 error on Odin. can you give me a link with a kitkat rom and a Pit file?
Edit: Found a pit file for me. Installed kitkat rom and tried to use it but same old problem. After a call signal go out.
Holy. I'm out of ideas!
Send from my G900F @ Ressurection Remix using Tapatalk.
coco91 said:
i've got some trouble going back to kitkat. I've got ext4 error on Odin. can you give me a link with a kitkat rom and a Pit file?
Edit: Found a pit file for me. Installed kitkat rom and tried to use it but same old problem. After a call signal go out.
Click to expand...
Click to collapse
Contacted your carrier? Tried a different SIM card?
*Detection* said:
Contacted your carrier? Tried a different SIM card?
Click to expand...
Click to collapse
Tried a different SIM and same problem... don't know what to do..
hi! Have you try to enter manually the parametrs of your network providers?
darksimo said:
hi! Have you try to enter manually the parametrs of your network providers?
Click to expand...
Click to collapse
Right now my problem isn't the network ! I only lose signal (for call and sms but not LTE) when i make or answer a call !
okay! i said that because i have the same problem with my phone and flashing modem/ bootlader and the correct csc ,after i enter manually parametrs of my network,solve the problem. I FORGOT TO MENTION one thing before doing all this, when i disable the lte everything go on ,but it was temporary solution
darksimo said:
okay! i said that because i have the same problem with my phone and flashing modem/ bootlader and the correct csc ,after i enter manually parametrs of my network,solve the problem. I FORGOT TO MENTION one thing before doing all this, when i disable the lte everything go on ,but it was temporary solution
Click to expand...
Click to collapse
Thanks but unfortunately it's not my case
Any new help for me ?
uff nothin new here..
Hi some news of my situation. I found a little fix for this: Mobile Networks -> Check "WCDMA/GSM" . Now i can do some call but sometimes it drop signal anyway.. Help !
hi i founded the problem.. my carrier blocked my IMEI because the first owner of the phone didn't ended to pay the s5...
i know that it's not legal.. but do you know any way to change my IMEI ?

[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

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