LG G8 AT&T unlock phone - LG G8 Questions & Answers

Hi All,
I have LG G8 unlock phone but not able to make or receive the calls whereas SMS and internet is working fine. I am using Airtel SIM card.
Any one can help me pl?

google a tutorial on how to put APN settings on your phone and put the Airtel APN settings

Andrive said:
google a tutorial on how to put APN settings on your phone and put the Airtel APN settings
Click to expand...
Click to collapse
BUT if APN had problem then we should not able to browse internet?

dial *#546368#*820# , go to band selection and select all bands

Andrive said:
dial *#546368#*820# , go to band selection and select all bands
Click to expand...
Click to collapse
now I have Device Test, ORT Test, SVC Menu and Field Test.. Which Option will give band selection?

him.007 said:
now I have Device Test, ORT Test, SVC Menu and Field Test.. Which Option will give band selection?
Click to expand...
Click to collapse
Under Field Test I have Modem Settings where I am getting Engineering Mode and PDP Settings

Pl help me

Related

SCH-530U US Cellular on Tmobile 4G LTE (HELP)

While messing with the setting in the hidden Menu.
I unlock the T-Mobile LTE Network on My US Cellular GS3
Internet: T-Mobile US LTE
Band: LTE:14
Data Speeds 20mbps down 3.6 mbps up
Mms: Works Flawless
Now My Problem. i cant make a phone call or receive a phone call
My Setting
Hidden Menu: *#22745927
enable hidden menu
*#197328640#
[1] UMTS > DEBUG SCREEN > PHONE CONTROL > NETWORK CONTROL > BAND SELECTION to set GSM Band preference
[2] CDMA > COMMON > NEXT PAGE > NEXT PAGE > PREF MODE SET to select GSM/WCDMA ONLY
SIM>TEST CSIM
WAIT 90 SECONDS THE REBOOT
VOILA! TMOBILE LTE.
Now i have succesfully unlock The Verison GS3 to Tmobile on Edge is there a way to port that radio. to get cell connectivity.
or if anyone want to try to tweak these settings to get more than just LTE connection. or get Voice over LTE working!
I do believe that you need the HSPA radio to make phone calls as T-Mobile does not yet support VoLTE.
http://support.t-mobile.com/docs/DOC-5627
What are you doing for apn setting? There are 3 for tmo-us that I know of. 1)gsm 2)lte 3)lte ipv6. You may have to down load an apn app. Apn manager pro worked well for me or offline sim apn database. Not sure what you use for network mode settings but use build prop editort open it up and find the settings telephony.lteoncdmadevice & telephony.lteongsmdevice use value 1 on both. Add lines if not there. This may open up more network types under setting/...network mode. Google build prop edit or tweaks to find more info. Good luck.
i535 radio/modem
Been thinking about you question to swap modems. Do not use the i535. The modem that would be ideal I believe is the r530m. That is metro PC variant. T-Mobile merged with the.... Do I need to explain more? Any how I can not say it will even work. I will say that T999L is no good. Found out first hand and still dead in the water with it. I would explore the APN settings and network selection modes with build prop mods before flashing. I am not even sure about the LTE bands and who has what and where. If I am able to revive my 530u I will see what I can find.
Where can I get the r530m modem? Can't find it anywhere.
mjstallion said:
Where can I get the r530m modem? Can't find it anywhere.
Click to expand...
Click to collapse
I'm also stuck, bumping an old thread but I need to figure this out
Testicopolicious said:
I'm also stuck, bumping an old thread but I need to figure this out
Click to expand...
Click to collapse
So, is it possible to flash the R530M modem????

Disable 2G (LTE/UMTS only) solution

Sometimes the phone jump to 2G (EDGE) for no reason while HSPA and LTE work perfectly.
Here is the solution (and it will stay after power cycle):
Dial *#*#4636#*#*
Phone Information
Scroll down to network mode and choose "LTE/WCDMA"
Reboot the phone immediately.
This method works for me.
Almost, its *#*#4636#*#*
Trying to do this on my D855 international G3, on lollipop, but can't get into the phone information .
*#*#4636#*#* works, but when I click on Phone Information, an error is given 'note this application does not work on this device' . I suspect a changed lollipop radio/Rom thing.
Any idea on how to achieve this another way?
jimbobmcginty said:
Trying to do this on my D855 international G3, on lollipop, but can't get into the phone information .
*#*#4636#*#* works, but when I click on Phone Information, an error is given 'note this application does not work on this device' . I suspect a changed lollipop radio/Rom thing.
Any idea on how to achieve this another way?
Click to expand...
Click to collapse
Did you manage to fix it?
is there a solution for this on asop (euphoria 7/06)?.... after a call it goes to 2g and it "never" switches back to lte
New method:
Dial 277634#*# and you can get in Hidden Menu -> RAT Selection.
Typing 3856#*855# into the dialer allowed be in, then choose LTE, then RAT options.
Using the G3 D850 (AT&T) for t-mobile but it rarely conects to 4G LTE, it's usually on 2G, tried doing the above, with the *#*#4636#*#* code came up a error that I can't access that app, and in the hidden menu I couldnt find where/how to set WCDMA or LTE only, any new way to do this?
Qwerty when in hidden menu choose LTE-ONLY > then >modem setting> then > rat selection works on my g3

Korean Mobile Issue

Hi
I was using my F180L. I went into global roaming section and searched for networks I was clearly seeing networks 2g/3g NETWORK NAME
Then I made sum changes in settings which I dont remember and tried telenor sim.It didnot recognize telenors sim However it works on 2g Warid Sim.But now when I search for networks It only show 2g Network name.Please help
Regards
Noaman Ahmed
noamanahmed said:
Hi
I was using my F180L. I went into global roaming section and searched for networks I was clearly seeing networks 2g/3g NETWORK NAME
Then I made sum changes in settings which I dont remember and tried telenor sim.It didnot recognize telenors sim However it works on 2g Warid Sim.But now when I search for networks It only show 2g Network name.Please help
Regards
Noaman Ahmed
Click to expand...
Click to collapse
it is happened to users who using wcdma or other non-cdma users.
Go to Settings -> Network -> choose CDMA subscription -> check RUIM
then open dialer,type *#*#4636#*#*,phone information,choose Select prefered network type to WCDMA prefered, reboot
now you should get signal on your phone,if not,check if network type is LTE,then switch it to 3G or 2G,then it should have signal now.
press the thanks button if that helps you
rais.asif786 said:
it is happened to users who using wcdma or other non-cdma users.
Go to Settings -> Network -> choose CDMA subscription -> check RUIM
then open dialer,type *#*#4636#*#*,phone information,choose Select prefered network type to WCDMA prefered, reboot
now you should get signal on your phone,if not,check if network type is LTE,then switch it to 3G or 2G,then it should have signal now.
press the thanks button if that helps you
Click to expand...
Click to collapse
Hi
It seems I got the issue resloved by running into another issue. First of all there is no such settings in my menu and second off all all the codes I try and when I press the last corrector the whole code disappears and nothing happens.Even *#06#
doesnot work
Also there seems to be a signal dropping issue. btw I am using F180L which is similar to E975
Also Thanx so much for trying
noamanahmed said:
Hi
It seems I got the issue resloved by running into another issue. First of all there is no such settings in my menu and second off all all the codes I try and when I press the last corrector the whole code disappears and nothing happens.Even *#06#
doesnot work
Also there seems to be a signal dropping issue. btw I am using F180L which is similar to E975
Also Thanx so much for trying
Click to expand...
Click to collapse
try to flash kdz again in your device./.. best of luck

LTE

Hi i have just purchased the z1 compact second hand from ebay and i cannot find any setting forLTE in mobile networks i can only select wcdma only/gsm only/ and wcdma prefred. My sim card is on the UK 3 network and previously was working on LTE.
Well is fine here.factory reset?
no LTE
zlata said:
Well is fine here.factory reset?
Click to expand...
Click to collapse
No good look this is mine.
sam0056 said:
No good look this is mine.
Click to expand...
Click to collapse
What about SERVICE menu?
Dial *#*#7378423#*#* and go to Service Info>Configuration. You should get something like the first attachment.
Also, You can check under *#*#4636#*#* and then check the set preferred network type like attachment 2.
fixed Lte
Mirhawk said:
What about SERVICE menu?
Dial *#*#7378423#*#* and go to Service Info>Configuration. You should get something like the first attachment.
Also, You can check under *#*#4636#*#* and then check the set preferred network type like attachment 2.
Click to expand...
Click to collapse
OK i managed to fix it by flashing a stock Kitkat rom from Central Europe. After flashing the stock rom LTE is now showing up and working guess ill just stick with KitKat for now

Accessing service menu

I was recently in Korea for work, so I picked up the G4 to bring back to the US. I bought it from SK Telecom, they told me phone should work globally. Now being back in the US, i popped in my Verizon Sim card and no mobile network is available. Phone is reading my sim and has the correct APNs, but still no connection. Does anyone know how to access the service menu to change bands?
bmpolska said:
I was recently in Korea for work, so I picked up the G4 to bring back to the US. I bought it from SK Telecom, they told me phone should work globally. Now being back in the US, i popped in my Verizon Sim card and no mobile network is available. Phone is reading my sim and has the correct APNs, but still no connection. Does anyone know how to access the service menu to change bands?
Click to expand...
Click to collapse
Verizon is cdma. Korea and most of the world is gsm. Like t mobile
xantanion said:
Verizon is cdma. Korea and most of the world is gsm. Like t mobile
Click to expand...
Click to collapse
I figured, but does anyone know how to access the hidden menu to view all the bands available?
5457#*500#
That should do however I can't access the main hidden menu to disable the throttling.
Thanks for the info 3rd degree.
I tried that on my H815 G4 but it didn't work (invalid code).
I also tried 5457#*815# but that didn't work either.
Unfortunately the 3845#*modelnumber# that always worked previously doesn't now. eg 3845#*815# just gives the invalid code error.
*Edit* the answer is in this thread:
http://forum.xda-developers.com/g4/help/how-to-enter-g4-hidden-menu-t3122373
the code that works for me is 277634#*#
bmpolska said:
I was recently in Korea for work, so I picked up the G4 to bring back to the US. I bought it from SK Telecom, they told me phone should work globally. Now being back in the US, i popped in my Verizon Sim card and no mobile network is available. Phone is reading my sim and has the correct APNs, but still no connection. Does anyone know how to access the service menu to change bands?
Click to expand...
Click to collapse
If you call 277634#*# it wil open the menu and Go into Field Test > Modem Settings and will let you change it
Rehok said:
If you call 277634#*# it wil open the menu and Go into Field Test > Modem Settings and will let you change it
Click to expand...
Click to collapse
For some reason, field test isn't an option on my Tmo variant. Any ideas? (i'm trying to see what LTE bands are enabled)
anyone knows the marshmallow code?

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