Unlock Sim for GSM How to

[nmccord]

Anyone have step by step instructions and screen shots

 

[nmccord]

Anyone?

 

[Lussardi]

Anyone?

Follow the steps in the first post... its very easy to unlock....






PS: the icon is only show GSM, not H or 4G , but navigate to 4G speed.... estetic nothing more....

 

[nmccord]

Thanks any anyway to get 4g working on gsm networks after unlock

 

[iBowToAndroid]

Works! I get an error dialing out though. I have to add a "1" before the number to call out. Any workaround other than adding a 1?

Read the post 2 above yours

 

[nmccord]

I mean 4g speed on gsm

---------- Post added at 01:39 AM ---------- Previous post was at 01:38 AM ----------

O ok so no to the speed so do u think there will be a work around to get the ,gsm 4g speeds

 

[xxsanioutlawxx]

Read the post 2 above yours

Can you elaborate on the earlier post regarding the .db file?

 

[Ruben32]

Hey! I just went through with the unlock and while replacing the files didn't work for me, changing the setting spr worked just fine.

The only problem I have now that I am using the phone on Sprint is that Network is still grayed out (I suppose I must revert the setting to SPR) and now instead of Sprint as the carrier under the pull-down notifications it says "Roaming Indicator Off"

Once I put a T-Mobile Sim in the phone, it shows T-Mobile as the carrier and it actually shows signal bars (I get none at the time, but data, calls, and text work.

Would I have to revert everything as to make the phone show just Sprint with actual bars?

 

[iBowToAndroid]

Can you elaborate on the earlier post regarding the .db file?

Needing to dial a 1 first is called Assist Dial. You can use an SQ editor to change the Android settings database file to turn off the Assist Dial function

 

[rAndroid3]

works!

Thanks ! That's really works for me! But I only did until step 2 and that worked, I'm able to use Mobil data network, everything is ok. I'm not in USA.
Well, I have few questions...
1- does it only works on stock Rom?
2- with the release of the New "android L" will it works?

Thank u very much appreciate your work.

 

[jannmedia]

nmccord -

Yes unlock works. Speeds depend on which GSM carrier you are on since the G3 only supports HSPA+ speeds on AT&T and Edge on T-Mobile unless you are living in a refarmed T-Mobile area running on 1900Mhz. Otherwise you only get Edge on T-Mobile.

After a bunch of testing, I think I have the method that works properly and doesn't crash all the time. Let me put it together and I'll post it here.



---------- Post added at 04:01 AM ---------- Previous post was at 03:45 AM ----------

So here goes -

GSM Unlock for Sprint LG G3 (Works for US GSM Carriers & International Carriers)

1. Root the device using StumpRoot - Download here http://forum.xda-developers.com/lg-g3/orig-development/root-stump-root-lg-g3-sprint-verizon-t2850906

2. Install SuperSU & Root Explorer & 920 Text Editor (or you can use Rom Tool Box for build.prop editing)

3. Copy build.prop from /system/build.prop to /sdcard

4. Open /sdcard/build.prop in 920 Text Editor

5. Edit line 268 and change ro.build.target_operator=SPR to ro.build.target_operator=spr

6. Save the file

7. Go to root explorer and copy build.prop from /sdcard to /system/ - try and delete existing build.prop and then copying the one from /sdcard instead of overwriting the existing file. I've encountered bootloops when overwriting build.prop

8. change permissions on /system/build.prop file you just copied to "rw - r - r". This is very important - when you copy and paste build.prop it loses the correct permissions and incorrect permissions will result in bootloop

9. reboot the device

10. It should now be unlocked. You will be unable to change the Network mode under "Mobile Networks" which will be grayed out so use the app "Network" from the play store to change the modem to "GSM (auto PRL)

11. In a few seconds you should see a signal. If not reboot the device once again and it should work.

12. Download "Tweakker" from the play store to get to APN settings and configure required APN settings for your carrier. After you are done with this step, you should have 3G/HSPA+ or Edge connectivity.

Note: The icons for 3G, 4G will be what sprint provides and sprint considers everything that is not EVDO/LTE to be "GSM" so you will only see GSM even if you are connected to HSPA+

I haven't found a tweak to change this but this is mostly a cosmetic issue. The other way of fixing this is to change build.prop to "global" instead of "spr" but you will encounter repeated system.buildui errors until you change the network mode to GSM from CDMA. Anytime you change the mode back to CDMA the buildui errors will reappear. You can get through the errors by disabling the radio / going into Airplane mode by holding the power button and then use the "Network" app to change your mode to GSM (Auto prl)

Both have the same result but changing it to global gives you the worldphone icons which are the usual E, H+, etc.


All this should be redundant once the bootloader unlock comes along and we can flash different roms that don't have sprint's restrictions.

--------------
I did all steps above 4 times, after reboot, the screen steel black!
Any solution ?

 

[rishidhar]

Not sure what you mean but usually if you get a black screen after rebooting then you did not have the correct permissions on the build.prop file before rebooting. Make sure it is rw-r-r

--------------
I did all steps above 4 times, after reboot, the screen steel black!
Any solution ?

 

[jannmedia]

Not sure what you mean but usually if you get a black screen after rebooting then you did not have the correct permissions on the build.prop file before rebooting. Make sure it is rw-r-r

I do have writing permission, and succeed to delete the Build prop from System and past the modified one.!
But after I reboot the phone, just see a black screen with a blue blinking bulb over the screen!

 

[rishidhar]

I'm assuming you have the correct phone. This is only tested on Sprint LG G3's.

Black screen = bad build.prop. Try doing it again. After you paste the modified build.prop - set the correct permissions (check this again)

Make sure it is rw- r-- r--

I do have writing permission, and succeed to delete the Build prop from System and past the modified one.!
But after I reboot the phone, just see a black screen with a blue blinking bulb over the screen!

 

[jannmedia]

I'm assuming you have the correct phone. This is only tested on Sprint LG G3's.

Black screen = bad build.prop. Try doing it again. After you paste the modified build.prop - set the correct permissions (check this again)

Make sure it is rw- r-- r--

Tried again, same result!
If you have the Build prop for Sprint LG G3 then I can try it?

http://s14.postimg.org/5i74xfvkh/0920141932.jpg

 

[rishidhar]

This is my build.prop with the changes made.

I use "Root Browser" app from the play store (it's free). I would delete your existing build.prop and then copy and paste this one and then make sure you change permission on the file to rw-r-r from root browser before rebooting.

https://drive.google.com/file/d/0B7I4uDeLvLxYS3pTS2tGSXAtQ0k/edit?usp=sharing

Tried again, same result!
If you have the Build prop for Sprint LG G3 then I can try it?

http://s14.postimg.org/5i74xfvkh/0920141932.jpg

---------- Post added at 01:00 AM ---------- Previous post was at 12:56 AM ----------

Permissions should look exactly like this

https://drive.google.com/file/d/0B7I4uDeLvLxYTXpLNV9TRDlWWEU/edit?usp=sharing

Tried again, same result!
If you have the Build prop for Sprint LG G3 then I can try it?

http://s14.postimg.org/5i74xfvkh/0920141932.jpg

 

[jannmedia]

This is my build.prop with the changes made.

I use "Root Browser" app from the play store (it's free). I would delete your existing build.prop and then copy and paste this one and then make sure you change permission on the file to rw-r-r from root browser before rebooting.

https://drive.google.com/file/d/0B7I4uDeLvLxYS3pTS2tGSXAtQ0k/edit?usp=sharing




---------- Post added at 01:00 AM ---------- Previous post was at 12:56 AM ----------

Permissions should look exactly like this

https://drive.google.com/file/d/0B7I4uDeLvLxYTXpLNV9TRDlWWEU/edit?usp=sharing

OK I will try it and capture pictures for steps.
by the way, the Build prop file you add has this line: ro.build.target_operator=SPR
Which is not spr ?

 

[rishidhar]

Sorry must have sent you the non edited build.prop.

Change it to spr and then copy to system

OK I will try it and capture pictures for steps.
by the way, the Build prop file you add has this line: ro.build.target_operator=SPR
Which is not spr ?

 

[jannmedia]

Sorry must have sent you the non edited build.prop.

Change it to spr and then copy to system

Replaced and the phone started, but I got this message:
" Unfortunately the process com.android.systemui has stopped "

http://s13.postimg.org/wbhk1jkyv/0920142131.jpg

 

[rishidhar]

Keep the power button pressed and quickly select "Turn on Airplane Mode" - This should stop the error messages and let you interact with the phone.

Use the "Network" App from the Play Store to change your phone into GSM mode. It will keep giving you an error until you get from CDMA - > GSM mode.

You can also try resetting the phone completely using recovery mode - that helps sometimes get rid of the message. Resetting the phone will not reset build.prop.

Replaced and the phone started, but I got this message:
" Unfortunately the process com.android.systemui has stopped "

http://s13.postimg.org/wbhk1jkyv/0920142131.jpg