Network Signal Dropping after update to 6.0M (Poland) - G3 Q&A, Help & Troubleshooting

When i bought D855p it came with 4.4, then i updated to 5.1, all official. After this i installed Cyanogenmod 12.1 and everything were fine. But when i installed 6.0(poland) my network signal keeps droping the intire day, it changes to UMTS and HSPA. I cant use my phone as a phone. The only way to solve this is, every time that i turn off the cel or put in airplane mode, is enter in MOBILE NETWORKS > NETWORK OPERATORS > SEARCH NETWORKS and choose GSM. (but i need to do this EEEEEVERY TIME that my cel turns off/airplane mode).
6.0 is the only ROM that i can choose GSM and the signal keep ~stable~. At least i can use my phone as a phone !
I did a backup of my IMEI before installing cm12 as well.
Things that i already tried :
-Flash ALL modem (ALL) , including 21C.
-intall cm13 and after cm12. Using TWRP 2.8 and 3.0.
-stock 4.4 , 5.0 , 5.1 and again 6.0. Using LGFlashTools
-MANY factory resets and wipes !
anybody can help me ? :good:

Same issue. I am on stock 4.4 and mobile network signal keeps dropping on weak signal area. I set to gsm/edge mode to mobile network. But nothing goes fine.

http://forum.xda-developers.com/lg-g3/help/lg-g3-4g-network-drops-t3394408#post67304224
Try this. However in your case download the Polad specific .kdz files

engmia said:
http://forum.xda-developers.com/lg-g3/help/lg-g3-4g-network-drops-t3394408#post67304224
Try this. However in your case download the Polad specific .kdz files
Click to expand...
Click to collapse
i'll try ! thanks

engmia said:
http://forum.xda-developers.com/lg-g3/help/lg-g3-4g-network-drops-t3394408#post67304224
Try this. However in your case download the Polad specific .kdz files
Click to expand...
Click to collapse
Doesn't work , sadly :crying:
i also tried to put in Network mode : GSM/WCDMA ( worked ) but when i choose GSM/WCDMA/LTE auto , signal drops every time. It is a solution to do this, but i cant use my LTE, and it sucks ...

Disable VOLTE n go to ur models service menu (check google) for me it was
*#546368#*851# (my model = d851)
*#546368#*XXX# (ur model=D8XX) verizon sprint numbers are differently
go to field test >network mode>set GSM permanently (try different gsm 850,990,etc)
Back > RAT selection > select GSM
U cant have network problems now cuz ur permanently set to gsm dont use 3g or 4g use wifi
hit like it helps

tevims said:
Doesn't work , sadly :crying:
i also tried to put in Network mode : GSM/WCDMA ( worked ) but when i choose GSM/WCDMA/LTE auto , signal drops every time. It is a solution to do this, but i cant use my LTE, and it sucks ...
Click to expand...
Click to collapse
I'm sad to hear that. Try also flashing modem 21C. There are also other guides for restoring your signal around the forum, different things seem to work for different people.

Related

[Q] 3G advanced configuration (help me please)

Hello there, this is my problem...
I flashed my phone and now I can't make 3G work. I have tried all this:
- call to my phone company and enter the exact parameters in configuration (user, password, server, etc)
- flash with another custom ROM
- flash with the original stock of my country (Chile) (via Odin, from Doky73 firmwares)
- backup from another GT-S5360L and restore in my phone
- enter into the servicemode *#*#197328640#*#*
Nothing of this have worked.
PLEASE HELP ME!
¿DO YOU KNOW A 3G ADVANCED CONFIGURATION MENU?
¿IS POSSIBLE THAT 3G IS GONE FOREVER?
HMM...
Did you try changing ur network mode to WCDMA? If its on auto mode then change it.. if still u dont get 3g or the H sign near ur network then its the fault of ur service provider
nicofreeride said:
Hello there, this is my problem...
I flashed my phone and now I can't make 3G work. I have tried all this:
- call to my phone company and enter the exact parameters in configuration (user, password, server, etc)
- flash with another custom ROM
- flash with the original stock of my country (Chile) (via Odin, from Doky73 firmwares)
- backup from another GT-S5360L and restore in my phone
- enter into the servicemode *#*#197328640#*#*
Nothing of this have worked.
PLEASE HELP ME!
¿DO YOU KNOW A 3G ADVANCED CONFIGURATION MENU?
¿IS POSSIBLE THAT 3G IS GONE FOREVER?
Click to expand...
Click to collapse
did you check if your apns are correct?
zeusseuz said:
did you check if your apns are correct?
Click to expand...
Click to collapse
yes! but nothing...
NAMAN.ARORA11 said:
Did you try changing ur network mode to WCDMA? If its on auto mode then change it.. if still u dont get 3g or the H sign near ur network then its the fault of ur service provider
Click to expand...
Click to collapse
yes i tried changing to only WCDMA and I lost the signal.
I put the my SIM in another SGY and I changed to only WCDMA configuration and 3G is totally ok... =/
Maybe your current location doesn't have strong enough signal for your SIM card, try changing location
Sent from my GT-S5360 using XDA
It seems to be a really weird problem.. try asking your service provider for 3g setting FOR galaxy y. If it still doesnt work then ur 3G receptor is not working.
try turning on the packet data, and switch to WCDMA only.
if it does not work turn off packet data, then goto flight mode switch to GSM only and back to WCDMA and turn on packet data again. this also happens on my phone sometimes.

[Q] {10-25-2012}{Rom}{ICS} Official Global CM9

* Unfortunately, I'm having the same problems with this ROM on HSDPA that I was having on aeroevan's ROM. GSM is found immediately on boot, however, HSDPA is very flakey. It will succeed in connecting every now and again, but then randomly drops the signal and won't reconnect. I thought maybe I just had a weak 3G signal where I was testing, but I have a BB Bold for work as well and that can easily maintain a 3G connection on the same network. I also had no problem way back in the day with CM7.2, but that ship has sailed .
Also, when the phone is in WCDMA preferred mode, after a while the phone will lose all connections (usually after a reboot but not always), including to GSM and when I go to reselect my network operator I get the message "Error while searching for networks". No matter how many times I reboot the phone or switch to "GSM Only" or "GSM/WCDMA auto" it never lets me again select my network provider.
As I said, I ran into the same problems with aero's port, so its not specific to this ROM.
* Situation are me after uproom (http://forum.xda-developers.com/showthread.php?t=1932573), spent two days lost wave, down to the original room (fullwipe finished down about 2.3.4). So lose the 3G network always in global mode (global), 3G users they will never be, but 2G ok (you spend vina sim and have installed APV vina). The physician who has experience helping hand factories. Thank a lot.
I don't known?
I do not understand.Specific guidance for me? please!
nabin229 said:
I do not understand.Specific guidance for me? please!
Click to expand...
Click to collapse
Aeroevan's rom? CM9, CM10? Is your radio outdated? What carrier are you on? More info = more help.
nabin229 said:
Situation are me after uproom (http://forum.xda-developers.com/show....php?t=1932573), spent two days lost wave, down to the original room (fullwipe finished down about 2.3.4). So lose the 3G network always in global mode (global), 3G users they will never be, but 2G ok (you spend vina sim and have installed APV vina). The physician who has experience helping hand factories. Thank a lot.
Click to expand...
Click to collapse
BTW, I don't understand this part.
I would suggest reading through the entire thread of Aeroevan's rom that you were describing as well as the Global CM9 thread. During your reading you may find and answer in there. I have found more answers that way than waiting on someone to direct me there anyway. That is all the advice I can provide with my limited knowledge.
Help me
ThePhantom97 said:
Aeroevan's rom? CM9, CM10? Is your radio outdated? What carrier are you on? More info = more help.
BTW, I don't understand this part.
I would suggest reading through the entire thread of Aeroevan's rom that you were describing as well as the Global CM9 thread. During your reading you may find and answer in there. I have found more answers that way than waiting on someone to direct me there anyway. That is all the advice I can provide with my limited knowledge.
Click to expand...
Click to collapse
I installed your room ( {Rom}{ICS} Official Global CM9), after 2 days my phone is not network. I reinstall the original room 2.3.4 but only use 2G when I used dataroaming; completely unusable 3G & network global mode always (I fullwipe data before reinstalling room 2.3.4 & APN properly installed).I then set your room again, but as I said above condition.Please help me how to be able to use 3G
because my phone is example:
Unfortunately, I'm having the same problems with this ROM on HSDPA that I was having on aeroevan's ROM. GSM is found immediately on boot, however, HSDPA is very flakey. It will succeed in connecting every now and again, but then randomly drops the signal and won't reconnect. I thought maybe I just had a weak 3G signal where I was testing, but I have a BB Bold for work as well and that can easily maintain a 3G connection on the same network. I also had no problem way back in the day with CM7.2, but that ship has sailed .
Also, when the phone is in WCDMA preferred mode, after a while the phone will lose all connections (usually after a reboot but not always), including to GSM and when I go to reselect my network operator I get the message "Error while searching for networks". No matter how many times I reboot the phone or switch to "GSM Only" or "GSM/WCDMA auto" it never lets me again select my network provider.
Ok, I don't know if anyone else is having the same problem as you. I hope I don't offend you but I am going to take a guess and say that english is not your first language as some of that is difficult for me to read and completely understand. From what I am gathering is you can connect to your carriers network but only on a temporary basis. Here are the steps I followed to connect to Verizon's network using {10-25-2012}{Rom}{ICS} Official Global CM9 - After a full wipe and clean install and after initial setup I went to (doing this from memory as I don't have it installed at the moment) Settings --> More --> Mobile Networks --> chose CDMA w/EVDO --> Exit out of settings and rebooted. When the phone booted up it recognized the Verizon network and all service and data was all working, I didn't have to change the APN settings at all. If you are still having trouble staying connected I suggest you check the version of radio you are using and consider updating it. Here is the radio thread: http://forum.xda-developers.com/showthread.php?t=1134451 I don't think I am the best person to assist you but just telling you what I would do if I were in your situation.
3G disconnect, only use 2G (GSM). Help me!
ThePhantom97 said:
Ok, I don't know if anyone else is having the same problem as you. I hope I don't offend you but I am going to take a guess and say that english is not your first language as some of that is difficult for me to read and completely understand. From what I am gathering is you can connect to your carriers network but only on a temporary basis. Here are the steps I followed to connect to Verizon's network using {10-25-2012}{Rom}{ICS} Official Global CM9 - After a full wipe and clean install and after initial setup I went to (doing this from memory as I don't have it installed at the moment) Settings --> More --> Mobile Networks --> chose CDMA w/EVDO --> Exit out of settings and rebooted. When the phone booted up it recognized the Verizon network and all service and data was all working, I didn't have to change the APN settings at all. If you are still having trouble staying connected I suggest you check the version of radio you are using and consider updating it. Here is the radio thread: http://forum.xda-developers.com/showthread.php?t=1134451 I don't think I am the best person to assist you but just telling you what I would do if I were in your situation.
Click to expand...
Click to collapse
my phone 3G is disconnect, only use 2G (GSM) , rom 2.3.4 Verizon, radio 1.09.01.0312. *I'm from Vietnam, I speak English not good, sorry.
nabin229 said:
my phone 3G is disconnect, only use 2G (GSM) , rom 2.3.4 Verizon, radio 1.09.01.0312. *I'm from Vietnam, I speak English not good, sorry.
Click to expand...
Click to collapse
No need to apologize m8. Hopefully someone more advanced than myself can assist you with your issue. I am sorry that I couldn't be of more assistance.
Trouble with wifi/3G
ThePhantom97 said:
Ok, I don't know if anyone else is having the same problem as you. I hope I don't offend you but I am going to take a guess and say that english is not your first language as some of that is difficult for me to read and completely understand. From what I am gathering is you can connect to your carriers network but only on a temporary basis. Here are the steps I followed to connect to Verizon's network using {10-25-2012}{Rom}{ICS} Official Global CM9 - After a full wipe and clean install and after initial setup I went to (doing this from memory as I don't have it installed at the moment) Settings --> More --> Mobile Networks --> chose CDMA w/EVDO --> Exit out of settings and rebooted. When the phone booted up it recognized the Verizon network and all service and data was all working, I didn't have to change the APN settings at all. If you are still having trouble staying connected I suggest you check the version of radio you are using and consider updating it. Here is the radio thread: http://forum.xda-developers.com/showthread.php?t=1134451 I don't think I am the best person to assist you but just telling you what I would do if I were in your situation.
Click to expand...
Click to collapse
I have been having the same problem. Flashed CM10 after full wipe, mobile network (for verizon) is CDMA w/EVDO, tried rebooting and switching and wiping and re-flashing but I have no wifi and bad 3G. When I revert to stock everything is fine. How can I fine the latest radio for CM10, I didn't see any JB in the thread link.
SS823 said:
I have been having the same problem. Flashed CM10 after full wipe, mobile network (for verizon) is CDMA w/EVDO, tried rebooting and switching and wiping and re-flashing but I have no wifi and bad 3G. When I revert to stock everything is fine. How can I fine the latest radio for CM10, I didn't see any JB in the thread link.
Click to expand...
Click to collapse
The latest is the ICS radio .320 it will work on JB roms as well.
Have you guys flashed the new ics firmware?
I'm so fresh you can suck my nits...

Only GSM no 3G/4G

Hey buddies!!
Have an issue after updated to eazy Kat KK 4.4.2, everything is running just fine, but can't be able to use
3g network only GSM /edge, can't force it un mobile network options and not even on *#*#4636#*#*, when I was on stock
JB 4.2.2 it worked just fine BUT now it doesn't :s.
bump
i m also facing this problem ,my set is e980 with kitkat, different 3g,4g network toggle software also didn't work.
finally i find solution with help of this thread " http://forum.xda-developers.com/optimus-g-pro/help/network-modes-t2848902 ".
try this.
Killerin said:
Hey buddies!!
Have an issue after updated to eazy Kat KK 4.4.2, everything is running just fine, but can't be able to use
3g network only GSM /edge, can't force it un mobile network options and not even on *#*#4636#*#*, when I was on stock
JB 4.2.2 it worked just fine BUT now it doesn't :s.
Click to expand...
Click to collapse
try 5457#*@@@* note: @@@ replaced by ur handset model 980 or 240 or 220
select bandwith. if u want edge alone select gsm bandwith
Thanks to both of you !! i've moved to g3 rom because this problem, now seems is working fine but now that you gave me the solution i am moving back to eazy eazykat! thanks again!
Solution for 3g/4g Problem After Update
Killerin said:
Hey buddies!!
Have an issue after updated to eazy Kat KK 4.4.2, everything is running just fine, but can't be able to use
3g network only GSM /edge, can't force it un mobile network options and not even on *#*#4636#*#*, when I was on stock
JB 4.2.2 it worked just fine BUT now it doesn't :s.
Click to expand...
Click to collapse
1st Method​Enter into service mode
By Dialing 5457#*988#
Change network mode to lte+global
or
wcdma only for 3G
lte for 4g
2ndMethod If 1st Method Does Not Work​Enter into service mode
By Dialing 5457#*988#
select wcdma service menu
Select wcdma/gsm band and select automatic
if does not work then try by ticking all frequencies

Cm 13 nİghtly 3g problem

Hi all.
i flashed last nightly version of CM 13 to my d855.
I have two problems.
1- Mobile networks choosen at LTE (recomended). I cant change it. 2G or 3G option is looks like selectable but nothing happened when i select it. Phone always staying just 2G (edge) mode.
2- After the phone call there is a message appear on screen: Invalid number (with bleeping)
if you have any idea for the fix this problem please write.
Thanks.
musluzut said:
Hi all.
i flashed last nightly version of CM 13 to my d855.
I have two problems.
1- Mobile networks choosen at LTE (recomended). I cant change it. 2G or 3G option is looks like selectable but nothing happened when i select it. Phone always staying just 2G (edge) mode.
2- After the phone call there is a message appear on screen: Invalid number (with bleeping)
if you have any idea for the fix this problem please write.
Thanks.
Click to expand...
Click to collapse
I had the same as your Nº 1 Problem, i tried to go to *#*#4636#*#* and force the phone to change to 3g but it didn't work either.
So i went back to my previous rom (XenonHD 5.1.1) y enter the menu on *#*#4636#*#* and select wcdma prefered (and i dis change).
I flash again CM 13, and the phone got 3g, but i can`t change the network mode, so i only got 3g or 2g.
i think that the rom doesn`t actually have the right permissions to change that now, hope it gets solved.
Hope you find this helpfull. And sorry if i misspelled some word, english is not my home language.
Thanks i got clearly. Not my home language too
1. As for your signal problem, depends on your carrier as CM is trying to be universally available to all carriers.
2. And as for the "invalid number" error, it is a very well known CM 13 issue according to CM moderators and developers and has been pushed to get fixed in upcoming nightly releases.
Source: http://forum.cyanogenmod.org/topic/118917-lg-d855-invalid-phone-number-error/
Have the same number 1 problem. Htc one m8 dual.

Network Signal Dropping every time after update to 6.0M (Poland)

When i bought D855p it came with 4.4, then i updated to 5.1, all official. After this i installed Cyanogenmod 12.1 and everything were fine. But when i installed 6.0(poland) my network signal keeps droping the intire day, it changes to UMTS and HSPA. I cant use my phone as a phone. The only way to solve this is, every time that i turn off the cel or put in airplane mode, is enter in MOBILE NETWORKS > NETWORK OPERATORS > SEARCH NETWORKS and choose GSM. (but i need to do this EEEEEVERY TIME that my cel turns off/airplane mode).
6.0 is the only ROM that i can choose GSM and the signal keep ~stable~. At least i can use my phone as a phone !
I did a backup of my IMEI before installing cm12 as well.
Things that i already tried :
-Flash ALL modem (ALL) , including 21C.
-intall cm13 and after cm12. Using TWRP 2.8 and 3.0.
-stock 4.4 , 5.0 , 5.1 and again 6.0. Using LGFlashTools
-MANY factory resets and wipes !
anybody can help me ? :good:

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