My carrier signal lost after upgrading to marshmallow. - G4 Q&A, Help & Troubleshooting

Hi
I recently purchased lg g4 h815 imported to india and it was unlocked for indian carriers and had 10h lolipop.and then i updated to marshmallow 20h and evn hard reset my phone.Now i got in marshmallow but my indian carrier Airtel signal lost.
Weird thing is , its showing signal only near towers and not anywhere else.please help on this.how do my carrier work again?:crying::crying:

Hard_Rock83 said:
Hi
I recently purchased lg g4 h815 imported to india and it was unlocked for indian carriers and had 10h lolipop.and then i updated to marshmallow 20h and evn hard reset my phone.Now i got in marshmallow but my indian carrier Airtel signal lost.
Weird thing is , its showing signal only near towers and not anywhere else.please help on this.how do my carrier work again?:crying::crying:
Click to expand...
Click to collapse
Did you make sure your network settings where correct? Set to GSM/WCDMA/LTE ? And have you made sure that network selection is set to auto?
Also maybe perform a factory reset?
Sent from my iPhone using Tapatalk

hyelton said:
Did you make sure your network settings where correct? Set to GSM/WCDMA/LTE ? And have you made sure that network selection is set to auto?
Also maybe perform a factory reset?
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Yeah tried everything but signals not coming.it only shows signal when i am very close to tower.

Related

[Q] LG G3 D855 LTE issue problem in UK

Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun
lunlun99 said:
Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun
Click to expand...
Click to collapse
You probably have the wrong band version i maybe wrong
jaythenut said:
You probably have the wrong band version i maybe wrong
Click to expand...
Click to collapse
the box mention phone supporting LTE 700/800/900/1800/2100/2300/2600. it isn't wrong band version.
lunlun99 said:
the box mention phone supporting LTE 700/800/900/1800/2100/2300/2600. it isn't wrong band version.
Click to expand...
Click to collapse
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated
jaythenut said:
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated
Click to expand...
Click to collapse
what's activated mean ?
jaythenut said:
That's strange then maybe put this in the dialer 3845#*855# and see if it is activated
Click to expand...
Click to collapse
what's activated mean ? and it's show up Connection problem or invalid MMI code
lunlun99 said:
what's activated mean ?
Click to expand...
Click to collapse
If you have 4G it will say under band i think
And you do have 4G contract with your carrier
Yes. the SIM work my other phone in LTE network
jaythenut said:
If you have 4G it will say under band i think
And you do have 4G contract with your carrier
Click to expand...
Click to collapse
I'm having the same problem with Three UK, no 4G. Although 4G worked on my Lumia 1020 with the same SIM a few days ago.
If I go into the hidden menu under LTE you can set it to use LTE and it connects to 4G brefiely then goes back to 3G and it never shows GSM/ WCDMA / LTE auto in the mobile networks menu, just GSm / WCDMA auto.
I noticed on the demo unit in a Three store that the phones software version was V10a-EUR-XX whereas mine is V10g-HKG-XX.
lewisco said:
I'm having the same problem with Three UK, no 4G. Although 4G worked on my Lumia 1020 with the same SIM a few days ago.
If I go into the hidden menu under LTE you can set it to use LTE and it connects to 4G brefiely then goes back to 3G and it never shows GSM/ WCDMA / LTE auto in the mobile networks menu, just GSm / WCDMA auto.
I noticed on the demo unit in a Three store that the phones software version was V10a-EUR-XX whereas mine is V10g-HKG-XX.
Click to expand...
Click to collapse
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app
Lennyuk said:
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app
Click to expand...
Click to collapse
Is there anything that can be done without root? I've tried setting the LTE in the hidden services menu and it connects foe a few seconds and then goes back to HSDPA. If seeting to LTE only it stays on LTE but not sure how it will work if I leave 4G coverage? I've also enabled fast dormancy but that doesn't seem to help.
There was a discussion about this in the UK thread, some phones came with 4G deactivated (on the 800MHz band used by 3 and Vodafone) that had to be activated at every boot. Replacing it fixed the problem as its not supposed to happen. But since the phone is from Asia who knows. Im not sure if flashing the eur version of the rom would work?
lewisco said:
Is there anything that can be done without root? I've tried setting the LTE in the hidden services menu and it connects foe a few seconds and then goes back to HSDPA. If seeting to LTE only it stays on LTE but not sure how it will work if I leave 4G coverage? I've also enabled fast dormancy but that doesn't seem to help.
Click to expand...
Click to collapse
fast dormancy is a network dependant setting that has nothing to do with the generation of signal you are receiving.
The only other option you have is to try and flash another firmware version.
Lennyuk said:
fast dormancy is a network dependant setting that has nothing to do with the generation of signal you are receiving.
The only other option you have is to try and flash another firmware version.
Click to expand...
Click to collapse
Can you recommend which FW to use?
Same here d855 version 3gb ram from Hong Kong no lte in the settings
stinkypoo said:
Same here d855 version 3gb ram from Hong Kong no lte in the settings
Click to expand...
Click to collapse
LTE will work from the hidden menu, or download 4G switcher from the Play store which will take you to the menu also. Just change it to LTE/GSM/WCDMA and it will work on the 4G network (at least on 3 UK). LG UK support will not help as it came from HK. I still want to know if I can flash a Euro 32GB ROM to my phone to get it working natively.
make sure u have activate your LTE with your carrier,i you have done it,and still didnt have LTE, try the hidden menu,or try 4G switch frm playstore,rooting and deleting lteconfig from system/app would be your last option (i prefer this)
Lennyuk said:
if you have root you can try deleting (or renaming) LTE Config.apk from /system/app
Click to expand...
Click to collapse
thank you, this fixed my problem!
my lte/3g/2g settings was everytime reset to 2g/3g modus when i got back to settings. i deleted lte config.apk and the .odex file, rebooted and BAM! it keeps on lte/3g/2g
Solved
I had the same issue (no LTE option in Networks configuration menu), until today: My phone installed firmware V10i-HKG-XX, and now I have the "GSM/WCDMA/LTE auto" option in Preferred Network Mode.
Cheers
LG G3 Asian D855 no 4G
lunlun99 said:
Hello
I have just got a LG G3 D855 from Asia. and the item can't find the LTE network. only work on WCDMA & GSM. any one have that problem and how can fix it
Lun
Click to expand...
Click to collapse
Do the following -
1. From the dailer, type in 3845#*855#
2. Select LTE Only
3. Modem Setting
4. RAT Selection
5. GSM/WCDMA/LTE Auto
You should now receive 4G but everytime you reboot, you have to repeat this procedure

LG G4 not showing LTE or 4g icon

I've got this issue where the icon of 4g and LTE not showing on my H818P (G4 dual sim) only got H, H+, 3G and E
I've doubled check the LTE bands and it's compatible here in Saudi Arabia
I tried to enter the code *#*#4636#*#* and open the phone information menu but I get "This Application does not work on this device"
I tried some apps from the market but with no luck .
does anyone got an idea or a fix for that, I really like the phone and I hate to return it since it's crucial feature to me
i got the same problem, im here in abu dhabi and i cant see the 4g icon or h+
I also do not get 4g LTE even though my model is supposed to support the band's of LTE my network uses. It's a shame but them again he speeds I get on HSPA+ are really not that bad. I think I will learn to live with it. Hopefully someone can come up with a way to enable more bands or unlock something that is blocking 4g. When I do connect to 4g LTE I can't send text messages so that's a no go.
Sent from my VS986
ElShe7s said:
I've got this issue where the icon of 4g and LTE not showing on my H818P (G4 dual sim) only got H, H+, 3G and E
I've doubled check the LTE bands and it's compatible here in Saudi Arabia
I tried to enter the code *#*#4636#*#* and open the phone information menu but I get "This Application does not work on this device"
I tried some apps from the market but with no luck .
does anyone got an idea or a fix for that, I really like the phone and I hate to return it since it's crucial feature to me
Click to expand...
Click to collapse
jakemadz said:
i got the same problem, im here in abu dhabi and i cant see the 4g icon or h+
Click to expand...
Click to collapse
The code is 277634#*#
Make sure you got the obvious set - network mode set to edge/wcdma/lte
Make sure provider data plan allows 4g, some plans/packages are restricted to 3g.
Sent from my LG-H818 using XDA Free mobile app
Well, I've tried everything.
At the end I've changed my sim card to a new one. It didn't work in the beginning but in a day or so it got LTE.
Hope it helps
Hi All,
I updated my LG G4 yesterday and i have a similar issue. the difference is i cannot connect to the 4G network. After i enable mobile data, nothing happens and i dont see the 4G sign. How did you get past this, did you factory reset or is there another way?
I tried to enter the code *#*#4636#*#* and open the phone information menu but I get "This Application does not work on this device"
Ideas?
happened to me, flashed v10g and now I have 3g+, h+, and 4g off course
edit : ok, I just figured this out, only software version v 10g OPT2 -H and v20e OPT2 -HQ have 3g+ and h+
Software version
NeoDJW said:
happened to me, flashed v10g and now I have 3g+, h+, and 4g off course
edit : ok, I just figured this out, only software version v 10g OPT2 -H and v20e OPT2 -HQ have 3g+ and h+
Click to expand...
Click to collapse
How did you flash it? Do you have instructions i can follow?
Android version is 6.0, Kernel Version 3.10.84, software version US991120c.
dabdul said:
How did you flash it? Do you have instructions i can follow?
Android version is 6.0, Kernel Version 3.10.84, software version US991120c.
Click to expand...
Click to collapse
http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
for acer z530 how to show the icon 4g?
ElShe7s said:
I've got this issue where the icon of 4g and LTE not showing on my H818P (G4 dual sim) only got H, H+, 3G and E
I've doubled check the LTE bands and it's compatible here in Saudi Arabia
I tried to enter the code *#*#4636#*#* and open the phone information menu but I get "This Application does not work on this device"
I tried some apps from the market but with no luck .
does anyone got an idea or a fix for that, I really like the phone and I hate to return it since it's crucial feature to me
Click to expand...
Click to collapse
Mine did the same. Go to "settings", then "networks", then "more", then scroll down to "mobile networks", then "system select". I switched from 'Global" to "LTE/CDMA" My lg g4 now says 4g lte
Pls help me fix my LG G3 issue. I can send messages and calls but cannot connect to the internet. No H+ or 4G sign on the network icon even I'm on internet settings. The issue even I changed my sim card.

3G connectivity on LG G3 D51 T-Mobile

I bought a refurbished LG G3 D851 T-Mobile from eBay. The phone is GSM and Unlocked, as the seller mentioned.
I tried to switch to 3G network mode, but couldn't. If I select WCDMA Only in network settings then I find no network signal at all. In our country we only have 3G connectivity and that's the only choice we have.
What should I do to get 3G connectivity? Any help?
Android version: 5.0.1
Build number: LRX21Y
Software version: D85120e
Kernel version 3.4.0
Try and call customer Support..........
Not like that...
willdiddy said:
Try and call customer Support..........
Click to expand...
Click to collapse
Thanks for your kind information. But living in another country using other network I can't just call T-Mobile customer support for help. I thought of flashing my LG G3 D851 ROM to D855 European general version ROM--so that I can active 3G connectivity. I want to know the process.
mehedihasan said:
Thanks for your kind information. But living in another country using other network I can't just call T-Mobile customer support for help. I thought of flashing my LG G3 D851 ROM to D855 European general version ROM--so that I can active 3G connectivity. I want to know the process.
Click to expand...
Click to collapse
Hardware inside (radio, bluetooth, WiFi) are different. 855 firmware or rom will not work.
mitbit2k3 said:
Hardware inside (radio, bluetooth, WiFi) are different. 855 firmware or rom will not work.
Click to expand...
Click to collapse
Thank you for your reply. Then how can I activate 3G in my smartphone?
Try Advance Signal Status app in the Play Store. If you are rooted, the advanced screen lets you change signal options.

Lg g4 mobile data connection problems

my g4 can't seem to achieve H+ connection even if it is available in my area.
my phone could only connect with H.
is this normal or is there something wrong with my phone or its settings?
Do you live in Philippines? I am having the same issue, not most of the time. There was some circumstances that my mobile data is not working even when subscribed to a data promos.
yes, i'm from the philippines
Hey, how was your phone now? Are you on marshmallow?
still can't connect with H+
i'm using marshmallow
pipeysh said:
still can't connect with H+
i'm using marshmallow
Click to expand...
Click to collapse
go to *#546368#*815#
then field test
then modem settings
then rat selection
then select wcdma only.try once.
how did you guys fix this problem where did you buy your phones?

Moto g5 no 3g and no 2g- no calls. Only 4g HELP!

hello, friends. Specially those who are worried about the so many problems with signal moto g5 users face. Im here asking for help. i have a moto g5 (cedric) i was working almost fine with oreo stock. i say almost because some times when i lost signal it didnt recover like any other phone woud, i had to reboot. now from almost a week ago i had lost signal and now i only have 4g. no 3G and no 2G, so no voice calls going out nor incoming ones. i ve done hard resets, flashing stock 7.0 and going back to stock 8.1 and nothing. on saw 3g for a little moment coming back to oreo. i also flashed carbon rom wich is android 9.0 to see if a custom rom helped but it didnt. i only have internet now and sms. and this is very frustrating. ive checked persist folder and everything is correct there. i have my imei right, this phone is like new but not being able to call is like not having a phone at all. also why i have to reboot to recover missing signal? is just a pain. this moto phones are really problematic when it comes to Signal management.
things to consider too: im currently on stock oreo, just rooted to be able to check if persist folder was correct and to backup efs folder. also my operator uses 900mhz band as 2g and 3g wich is an european frecuency not common in latin america. maybe that has something to do with problems im facing. the rom has cedric_latam_cust as the baseband. can anyone help me find one frome europe? im wondering if flashing one from there could help. the weird thing is that it was working before with that baseband.
so many people losing 4g, i could be glad if that was my case and had 2g and 3g only with full internet and calling capabilities.
im sorry i know it is a little bit too much information. but i really need the help
ajmdve said:
hello, friends. Specially those who are worried about the so many problems with signal moto g5 users face. Im here asking for help. i have a moto g5 (cedric) i was working almost fine with oreo stock. i say almost because some times when i lost signal it didnt recover like any other phone woud, i had to reboot. now from almost a week ago i had lost signal and now i only have 4g. no 3G and no 2G, so no voice calls going out nor incoming ones. i ve done hard resets, flashing stock 7.0 and going back to stock 8.1 and nothing. on saw 3g for a little moment coming back to oreo. i also flashed carbon rom wich is android 9.0 to see if a custom rom helped but it didnt. i only have internet now and sms. and this is very frustrating. ive checked persist folder and everything is correct there. i have my imei right, this phone is like new but not being able to call is like not having a phone at all. also why i have to reboot to recover missing signal? is just a pain. this moto phones are really problematic when it comes to Signal management.
things to consider too: im currently on stock oreo, just rooted to be able to check if persist folder was correct and to backup efs folder. also my operator uses 900mhz band as 2g and 3g wich is an european frecuency not common in latin america. maybe that has something to do with problems im facing. the rom has cedric_latam_cust as the baseband. can anyone help me find one frome europe? im wondering if flashing one from there could help. the weird thing is that it was working before with that baseband.
so many people losing 4g, i could be glad if that was my case and had 2g and 3g only with full internet and calling capabilities.
im sorry i know it is a little bit too much information. but i really need the help
Click to expand...
Click to collapse
You could get your country firmware from here.
https://mirrors.lolinet.com/firmware/moto/cedric/official/
And don't flash older version firmwares as it will brick your device.and you should try a different sim card in your device to know if there is a problem in sim card or the device.
riyan65 said:
You could get your country firmware from here.
https://mirrors.lolinet.com/firmware/moto/cedric/official/
And don't flash older version firmwares as it will brick your device.and you should try a different sim card in your device to know if there is a problem in sim card or the device.
Click to expand...
Click to collapse
Thank you friend. I was able to download and flash an euro rom. Just to find that the baseband was not changed after flashing it. I even tried erasing modem and reloading non_hlos but I still have latam baseband on settings.
ajmdve said:
Thank you friend. I was able to download and flash an euro rom. Just to find that the baseband was not changed after flashing it. I even tried erasing modem and reloading non_hlos but I still have latam baseband on settings.
Click to expand...
Click to collapse
So after flashing the firmware did you get your calls back???
riyan65 said:
So after flashing the firmware did you get your calls back???
Click to expand...
Click to collapse
Not at all. I'm still having 4g only. As I mentioned before, in status it is still showing the same baseband that was in first place. One from Latin America. But I was trying to get it changed to an Europe one by fishing a new rom from O2. But it didn't change.
ajmdve said:
Not at all. I'm still having 4g only. As I mentioned before, in status it is still showing the same baseband that was in first place. One from Latin America. But I was trying to get it changed to an Europe one by fishing a new rom from O2. But it didn't change.
Click to expand...
Click to collapse
Maybe you could try changing the radio band in phone app.
Dial *#*#4636#*#* then phone info then select radio band which give you calls.
riyan65 said:
Maybe you could try changing the radio band in phone app.
Dial *#*#4636#*#* then phone info then select radio band which give you calls.
Click to expand...
Click to collapse
There I only have 2 options, automatic and United States. I have chosen automatic but still the same
ajmdve said:
There I only have 2 options, automatic and United States. I have chosen automatic but still the same
Click to expand...
Click to collapse
Maybe you should try pixel experience ROM(pie) or retin firmware as I was on retin and I got many choices such as Europe, United States, some frequency. Maybe you should try pixel experience first as it going fix network problem many times, then you can try retin firmware.
riyan65 said:
Maybe you should try pixel experience ROM(pie) or retin firmware as I was on retin and I got many choices such as Europe, United States, some frequency. Maybe you should try pixel experience first as it going fix network problem many times, then you can try retin firmware.
Click to expand...
Click to collapse
I've tried pixel Xperience But it didn't help. I'm going to look about retin. At this point I even changed imei just to see if it helped. But it didn't. I'm thinking it might be a hardware problem
ajmdve said:
I've tried pixel Xperience But it didn't help. I'm going to look about retin. At this point I even changed imei just to see if it helped. But it didn't. I'm thinking it might be a hardware problem
Click to expand...
Click to collapse
If you are not able to get signal only, then how are you able to 4g???
Can you post some screenshots of the problem and the sim status(available in about phone (settings))
riyan65 said:
If you are not able to get signal only, then how are you able to 4g???
Can you post some screenshots of the problem and the sim status(available in about phone (settings))
Click to expand...
Click to collapse
In my country we have 3 mobile operators. Movistar won't work (don't know why), the other works perfect on my phone. Mine from a week ago only work 4g. This afternoon it worked 3g but when I rebooted it stopped. Only 4g again. So no calls.
The first screenshot is with 3g and no signal
The other 2 is when rebooted having activated 4g
ajmdve said:
In my country we have 3 mobile operators. Movistar won't work (don't know why), the other works perfect on my phone. Mine from a week ago only work 4g. This afternoon it worked 3g but when I rebooted it stopped. Only 4g again. So no calls.
The first screenshot is with 3g and no signal
The other 2 is when rebooted having activated 4g
Click to expand...
Click to collapse
Did you try the sim card in other device???
riyan65 said:
Did you try the sim card in other device???
Click to expand...
Click to collapse
I came from a couple of phonesin last 2 months, htc one, Galaxy S3, Galaxy j2 pro, and iPhone 5s just right before this moto and neverb had any problem. Right now I used my sim card with my wife's iPhone 4s and my mom's 5c, even an old Galaxy spica and all worked with it. I'm frustrated
This g5 worked for a week with 3g and 2g normally. But a week ago started this nightmare
ajmdve said:
I came from a couple of phonesin last 2 months, htc one, Galaxy S3, Galaxy j2 pro, and iPhone 5s just right before this moto and neverb had any problem. Right now I used my sim card with my wife's iPhone 4s and my mom's 5c, even an old Galaxy spica and all worked with it. I'm frustrated
Click to expand...
Click to collapse
It seems the problem is API as you are getting 4g but no calls then it could probably API only, try editing the API or creating a new one. You can get the API configuration from the internet or the device which you get calls.
riyan65 said:
It seems the problem is API as you are getting 4g but no calls then it could probably API only, try editing the API or creating a new one. You can get the API configuration from the internet or the device which you get calls.
Click to expand...
Click to collapse
Do you mean APN?
ajmdve said:
Do you mean APN?
Click to expand...
Click to collapse
Yeah
riyan65 said:
Yeah
Click to expand...
Click to collapse
Changed APN and nothing improved.
ajmdve said:
Changed APN and nothing improved.
Click to expand...
Click to collapse
Did you try a different sim card in the device, does it working??? And does your service provider support LTE over call??? If it doesn't then change the preferred network type to LTE/CDMA/UMTS auto(prl). And switch your sim card to sim slot 2.
riyan65 said:
Did you try a different sim card in the device, does it working??? And does your service provider support LTE over call??? If it doesn't then change the preferred network type to LTE/CDMA/UMTS auto(prl). And switch your sim card to sim slot 2.
Click to expand...
Click to collapse
I haven't tried another from my company. But from other it does work well. Mine doesn't have lte over call. So when I try to call it switches to 3g and right there loses signal at all. I have to restart the phone to get 4g again

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