[Q] Change operating frequency - LG Optimus L9 P760, P765, P768, P769

Hi all
I have a little problem here. I was using telcel jb rom but 3g didnt worked for me and now i know why.
Mexico operators doesnt work with 3g on 2100 Mhz (my operator works in this frequency), and they've disabled it somehow for mexico.
In ZAF (south africa) JB 3g works fine for me, but doesn't have my language and i can't figure out a way to "translate" it. I tried modifying the apps puting inside them in the values folder the folder for pt-BR, but the apps doesn't work after re-compiling.
I really upset with this all. Somebody could help me on this?
I ask 2 things:
- Is there anyway to change the system network's operating frequency? how can i do it?
- Is there anyway to put my language inside ZAF jb apps? they have values for pt-PT but not for pt-BR. The files for pt-BR i take from the mexico jb apps (decompile with dependencies, lg-res.apk, recompile after put the values folder from mexico in zaf apps)

---

shucrut said:
Hi all
I have a little problem here. I was using telcel jb rom but 3g didnt worked for me and now i know why.
Mexico operators doesnt work with 3g on 2100 Mhz (my operator works in this frequency), and they've disabled it somehow for mexico.
In ZAF (south africa) JB 3g works fine for me, but doesn't have my language and i can't figure out a way to "translate" it. I tried modifying the apps puting inside them in the values folder the folder for pt-BR, but the apps doesn't work after re-compiling.
I really upset with this all. Somebody could help me on this?
I ask 2 things:
- Is there anyway to change the system network's operating frequency? how can i do it?
- Is there anyway to put my language inside ZAF jb apps? they have values for pt-PT but not for pt-BR. The files for pt-BR i take from the mexico jb apps (decompile with dependencies, lg-res.apk, recompile after put the values folder from mexico in zaf apps)
Click to expand...
Click to collapse
I can help you about how to add languages to apk. I guess you got compile error while rebuild apk back right? That because some string format in strings.xml are incorrect. I think it apktool bug. The problem is percent (%) character. It's used to format number. If you want % character in the text, you must use %% to escape it and it give you % in output text.
You must correct all error that display in apktool output while rebuild it back. And to make it works you should edit following apk
- LGSystemSetting.apk
- LGSystemUI.apk
- LGHome3.apk
- and what ever apps that you want to add your language to.
So... It's easier to just replace that apk from Mexico rom into ZAF rom.

---

Thanks for replying artit. I got some errors rebuilding the apks, but I installed lg-res framework with apktool and after this, i got them to compiling.
But i pushed them to my phone and the system became messed up. The status bar didnt show up (i edited LGsystemUI.apk), home didnt show up, settings, lockscreen, nothing, just the lockscreen wallpaper. I edited them, add my language but just this.
I tried replacing the apps from mexico but the phone don't boot when i replace some apps like installservice apk
One question: Do i have to be on a deodexed ROM to edited apps work? if yes, i found my problem, cause i take the apps from my stock rom odexed

---

shucrut said:
Hi all
I have a little problem here. I was using telcel jb rom but 3g didnt worked for me and now i know why.
Mexico operators doesnt work with 3g on 2100 Mhz (my operator works in this frequency), and they've disabled it somehow for mexico.
In ZAF (south africa) JB 3g works fine for me, but doesn't have my language and i can't figure out a way to "translate" it. I tried modifying the apps puting inside them in the values folder the folder for pt-BR, but the apps doesn't work after re-compiling.
I really upset with this all. Somebody could help me on this?
I ask 2 things:
- Is there anyway to change the system network's operating frequency? how can i do it?
- Is there anyway to put my language inside ZAF jb apps? they have values for pt-PT but not for pt-BR. The files for pt-BR i take from the mexico jb apps (decompile with dependencies, lg-res.apk, recompile after put the values folder from mexico in zaf apps)
Click to expand...
Click to collapse
You can do following http://forum.xda-developers.com/showthread.php?t=2230966

---

I didn't really read your post but if you can't access the 4g of one company because it's on another frequency then sorry you cannot change it as the chip is set to run at specific frequencies... Very sorry
Sent from my LG-P769 using xda app-developers app

---

shucrut said:
Thanks for replying artit. I got some errors rebuilding the apks, but I installed lg-res framework with apktool and after this, i got them to compiling.
But i pushed them to my phone and the system became messed up. The status bar didnt show up (i edited LGsystemUI.apk), home didnt show up, settings, lockscreen, nothing, just the lockscreen wallpaper. I edited them, add my language but just this.
I tried replacing the apps from mexico but the phone don't boot when i replace some apps like installservice apk
One question: Do i have to be on a deodexed ROM to edited apps work? if yes, i found my problem, cause i take the apps from my stock rom odexed
Click to expand...
Click to collapse
You can try Lelus method, it much easier than rebuild apk ,
For odexed file, I think you need to deodex apk first. But to make new apk work you must copy
- META-INF folder
- AndroidManifest.xml
from original apk to new apk. And for LG stock rom apk, you cannot modify AndroidManifest.xml file. If you modify it, that apk will not work. You should zipalign apk after rebuilt but it not necessary.
Maybe you can use apk from Jelly Cream rom, it's deodexed and has pt-BR, I add all language from Mexico & Thailand rom to Europe V20H. But I modified some framework and some config in apk. If you're still not success with this I'll reverse all changes and rebuild that apk for you. I plan to add new language to Jelly cream rom this weekend.
MoonMaster345 said:
I didn't really read your post but if you can't access the 4g of one company because it's on another frequency then sorry you cannot change it as the chip is set to run at specific frequencies... Very sorry
Sent from my LG-P769 using xda app-developers app
Click to expand...
Click to collapse
I don't think so. You can flash new baseband to alter usable frequency. And you can change phone frequency for 2G/3G in hidden menu.

---

artit said:
You can try Lelus method, it much easier than rebuild apk ,
For odexed file, I think you need to deodex apk first. But to make new apk work you must copy
- META-INF folder
- AndroidManifest.xml
from original apk to new apk. And for LG stock rom apk, you cannot modify AndroidManifest.xml file. If you modify it, that apk will not work. You should zipalign apk after rebuilt but it not necessary.
Maybe you can use apk from Jelly Cream rom, it's deodexed and has pt-BR, I add all language from Mexico & Thailand rom to Europe V20H. But I modified some framework and some config in apk. If you're still not success with this I'll reverse all changes and rebuild that apk for you. I plan to add new language to Jelly cream rom this weekend.
I don't think so. You can flash new baseband to alter usable frequency. And you can change phone frequency for 2G/3G in hidden menu.
Click to expand...
Click to collapse
Thanks again artit. I tried lelus method, didnt work, so im trying decompile/recompile apks, bot not much luck
I deodexed all apks and framework and pushed to my phone after removing the .odex files
Im stucked at lgsettings.apk, i can decompile it by installing lg-res.apk into apkmultitools, but goterrorwhen trying to recompile it. If you want to i post the error log
I also tried using jellycream apps, but my only try was replacing all apps so got bootloop. I will try replacing just the necessary ones - lgsettings, systemui, lghome, camera, installservice