Develop Bugs

[Q] AOKP (JellyBean) ROM LTE issue

Hi:
I installed the AOKP (Jellybean) ROM from http://forum.xda-developers.com/showthread.php?t=1766684
on my Telus (Canada) S3 SGH-I747M and I could not get the LTE/4G like I always got at home.
If I flash back the stock ROM then 4G/LTE came back. I checked the APN settings after installing the AOKP and it looks the same as the APN settings in the stock ROM. Please advise me how to get 4G/LTE on this rom or is there any Jellybean rom out there that I can get 4G on my Telus S3 ?
Other issue that I didn't like is that at times I had to press multiple times on the HOME button on my phone to wake up the phone, none of this issue happens on the stock rom.
Thanks

roccoking said:
Hi:
I installed the AOKP (Jellybean) ROM from http://forum.xda-developers.com/showthread.php?t=1766684
on my Telus (Canada) S3 SGH-I747M and I could not get the LTE/4G like I always got at home.
If I flash back the stock ROM then 4G/LTE came back. I checked the APN settings after installing the AOKP and it looks the same as the APN settings in the stock ROM. Please advise me how to get 4G/LTE on this rom or is there any Jellybean rom out there that I can get 4G on my Telus S3 ?
Other issue that I didn't like is that at times I had to press multiple times on the HOME button on my phone to wake up the phone, none of this issue happens on the stock rom.
Thanks
Click to expand...
Click to collapse
The only workaround I have found is to dial *#*#4636#*#* in the phone dialer and then going to phone information and selecting LTE only. For some reason it defaults to WCDMA.
I am currently researching some other info on this issue.

If you select LTE only you will not be able to make or receive calls. LTE is data only. You should choose GSM/LTE. The problem is in AOKP this setting resets after a reboot, so you have to do it every time you reboot your phone. The home button is a known issue, they're working on it.

ph3n1x said:
The only workaround I have found is to dial *#*#4636#*#* in the phone dialer and then going to phone information and selecting LTE only. For some reason it defaults to WCDMA.
I am currently researching some other info on this issue.
Click to expand...
Click to collapse
I also have this issue but when i enter that in phone dialer it said "unfortunately the function has stopped"

[Q] G3 / 20F No LTE?

Im using a D855 LG G3 running the bumped v20F stock firmware (see the android dev thread) with no issues except this one...
Im currently in singapore using a SIM card that supports 4G on a network that has good 4G coverage (M1) but i simply cannot get LTE/4G to work at all.
Ive tried the WCDMA/LTE/GSM/Auto in mobile settings and it always without fail sticks on "H". Via the hidden menu i select "LTE Only" and i get no data connection icon (or data) at all.
Searching the mobile networks ive tried manually selecting the M1 advertising as LTE on the list but the same thing - it defaults to "H" and wont shift off there.
The APN im using is the one advertised by M1 for 3G and 4G coverage.
I dont think this is a ROM problem hence posting it here but ive got no idea how to solve it. Anyone got any ideas what else i can do/change or check ?
Other than rooted, the stock ROM is not modified or customised in any way - it was a factory reset, clean install.

Similar issue in Argentina, with 20b on my D855. Tried using the 3845#855# code, selecting even the LTE only thing, but nothing, no LTE. SIM card and service is working right (tested on a Nexus 5).
Any thoughts would be appreciated.

alex_herrero said:
Similar issue in Argentina, with 20b on my D855. Tried using the 3845#855# code, selecting even the LTE only thing, but nothing, no LTE. SIM card and service is working right (tested on a Nexus 5).
Any thoughts would be appreciated.
Click to expand...
Click to collapse
Try reinstalling LTEConfigs.apk under system/app

Unfortunately, I can't root or flash anything on this phone until I know it can use our LTE bands, or should I return it. Any other way?

[Q] LG G3 4G Not supported

Hi all ,
Im experiencing strange problem in connecting my phone to 4g LTE.
I brought LG G3 International version(D855) with 5.0 recently, where Im unable to get the 4g connection, right now I'm able to see only 'H'. I also see that there is no option of 4g in network mode, moreover i tried all the hidden settings (*#*#4636 ,... and some other codes like 3845#*855# but doesn't work)
I have gsm/wcdma option only !!
Could anyone help me ?!!

hi
I went to Hidden Menu by typing 3845#*855# ---> LTE-Only ---> Modem Settings ---> RAT Selection ---> GSM/WCDMA/LTE auto, and it worked for me. i can see 4g on my data connection.

ansari.srm said:
hi
I went to Hidden Menu by typing 3845#*855# ---> LTE-Only ---> Modem Settings ---> RAT Selection ---> GSM/WCDMA/LTE auto, and it worked for me. i can see 4g on my data connection.
Click to expand...
Click to collapse
I tried this but in the network mode it doesn't appear "GSM/WCDMA/LTE auto"

I have updated the android 5.0 and have that option in my network mode.
I don't have further information to help.

ansari.srm said:
I have updated the android 5.0 and have that option in my network mode.
I don't have further information to help.
Click to expand...
Click to collapse
thanks

Lolipop problem with 4G LTE

Hello
After reboot phone setup wcdma/gsm network priority. There is also problem with changing to lte/wcdma/gms , you cannot click it directly, need first click like gsm and then lte to make it active.
Using official lolipop , IL customization
Anyone noticed 4G/LTE problem on Lolipop ?

Golempl said:
Hello
After reboot phone setup wcdma/gsm network priority. There is also problem with changing to lte/wcdma/gms , you cannot click it directly, need first click like gsm and then lte to make it active.
Using official lolipop , IL customization
Anyone noticed 4G/LTE problem on Lolipop ?
Click to expand...
Click to collapse
I'm having the same problems, but I finally get LTE working

Same for me. But I don't have LTE yet. So didn't bother too much.

maybe you can try this:
FIX 4G PROBLEMS
edit build.prop
- look for 'telephony.lteOnCdmaDevice=0' and change it to 'telephony.lteOnCdmaDevice=1'
look for 'ro.semc.version.fs=GLOBAL-HSPA' and change it to 'ro.semc.version.fs=GLOBAL-LTE'
reboot your phone
type *#*#4636#*#*
Select phone informations (first menu)
turn off radio
in network prefered I've selected TD-SCDMA, LTE, CDMA, EvDO GSM/WCDMA
turn on radio again
exit
type *#*#4636#*#* again and look in network prefered, it will be on LTE/GSM auto (PRL) and 4G should be there

LTE/4G issue after hard reset
Hi to all,
and thank you for the tips doenen.
I have the same issue since i hard-reset the phone.
Just to be clear, if we want to edit the build.prop file, we have to be rooted ?

cmartinez said:
Hi to all,
and thank you for the tips doenen.
I have the same issue since i hard-reset the phone.
Just to be clear, if we want to edit the build.prop file, we have to be rooted ?
Click to expand...
Click to collapse
Yup, since it is located in system partition.

4G/LTE issue Fixed.
Thank you Mirhawk,
Everything got back in order.
Cmartinez.

doenen said:
maybe you can try this:
FIX 4G PROBLEMS
edit build.prop
- look for 'telephony.lteOnCdmaDevice=0' and change it to 'telephony.lteOnCdmaDevice=1'
look for 'ro.semc.version.fs=GLOBAL-HSPA' and change it to 'ro.semc.version.fs=GLOBAL-LTE'
reboot your phone
type *#*#4636#*#*
Select phone informations (first menu)
turn off radio
in network prefered I've selected TD-SCDMA, LTE, CDMA, EvDO GSM/WCDMA
turn on radio again
exit
type *#*#4636#*#* again and look in network prefered, it will be on LTE/GSM auto (PRL) and 4G should be there
Click to expand...
Click to collapse
Thank you.. Works for me too!! Previously i had to restore my phone to get my lte back.. :good::good::good::good:

doenen said:
maybe you can try this:
FIX 4G PROBLEMS
edit build.prop
- look for 'telephony.lteOnCdmaDevice=0' and change it to 'telephony.lteOnCdmaDevice=1'
look for 'ro.semc.version.fs=GLOBAL-HSPA' and change it to 'ro.semc.version.fs=GLOBAL-LTE'
reboot your phone
type *#*#4636#*#*
Select phone informations (first menu)
turn off radio
in network prefered I've selected TD-SCDMA, LTE, CDMA, EvDO GSM/WCDMA
turn on radio again
exit
type *#*#4636#*#* again and look in network prefered, it will be on LTE/GSM auto (PRL) and 4G should be there
Click to expand...
Click to collapse
Rauno
Hi, I did all the steps except the ro.semc one, because there is no such setting in my build.prop. However I still wasn't able to get 4g working, it just keeps switching back to the old settings.. Any ideas? Running cm12.1 android 5.1.1

Re issue with LTE/4G
Hello,
i got my phone back from SONY's technical services, cause i had a bunch of issue (i sent it twice in a month).
For now, the battery drain isseu seems to be fixed, but i do not have 4G/LTE.
I already encounter this issue, and after the service menu manipulation, everything got back in order.
I tried to do the same manipulations, but i can't turn off radio. It's like it was locked.
Any ideas ?
Thanks for helping.
Regards

doenen said:
maybe you can try this:
FIX 4G PROBLEMS
edit build.prop
- look for 'telephony.lteOnCdmaDevice=0' and change it to 'telephony.lteOnCdmaDevice=1'
look for 'ro.semc.version.fs=GLOBAL-HSPA' and change it to 'ro.semc.version.fs=GLOBAL-LTE'
reboot your phone
type *#*#4636#*#*
Select phone informations (first menu)
turn off radio
in network prefered I've selected TD-SCDMA, LTE, CDMA, EvDO GSM/WCDMA
turn on radio again
exit
type *#*#4636#*#* again and look in network prefered, it will be on LTE/GSM auto (PRL) and 4G should be there
Click to expand...
Click to collapse
Worked for me,cheers.

Network Signal Dropping 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:

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.