Unlock Sim for GSM How to

[elmy2424]

Hi, i bought 2 of these sprint g3. have tried the two methods but no luck first i tried remplacing the files but when i remplace the files and remove all sprint garbage i got full signal but when i try a call it says dialing but i dont hear anything and after +-30 secounds the dialer says "Out of service area" and ends the call.

So i flashed stock firmware over flashtool and changed SPR to OPEN and removed all sprint garbage. and the same i got full signal but when i try a call this time says Mobil network not suported.. and instead of com.android.phone has stopped. i got com.systemui has stopped.

and finally i checked the imeis on the phones and booom :crying::crying::crying: same imei on both = 350305260000004
which is a rare imei and when i checked for bad imei got this: http://www.imei.info/?imei=350305260000004.

i think are dummy phones.... just want that you confirm that s**t..

 

[rishidhar]

You won't get errors if you changed to ro.build.taget_operator to spr (spr should be in small letters)

Hi, i bought 2 of these sprint g3. have tried the two methods but no luck first i tried remplacing the files but when i remplace the files and remove all sprint garbage i got full signal but when i try a call it says dialing but i dont hear anything and after +-30 secounds the dialer says "Out of service area" and ends the call.

So i flashed stock firmware over flashtool and changed SPR to OPEN and removed all sprint garbage. and the same i got full signal but when i try a call this time says Mobil network not suported.. and instead of com.android.phone has stopped. i got com.systemui has stopped.

and finally i checked the imeis on the phones and booom :crying::crying::crying: same imei on both = 350305260000004
which is a rare imei and when i checked for bad imei got this: http://www.imei.info/?imei=350305260000004.

i think are dummy phones.... just want that you confirm that s**t..

 

[hatlesssandman]

Ok please try these settings on your phone exactly as displayed in the screen shots. This should give you correct signal bars on your phone and get rid of the dreaded gsm icon (i hate that icon with a passion) and should show H icon if you have 3g or E icon if you have 2g. I've attached a screen shot to display this as well. I'm using this internationally but this should theoretically work domestically as well since after these settings the phone becomes truly global and not the gimped Sprint version. Please provide feedback on this thread to let me know if this works (Im the same person the OP used the phone of as a guide to unlock his as i had mine unlocked from Sprint).
I suggest you use Rom tool box to edit your build prop as there's minimal chances of it going into bootloop then.
So change your ro.build.target_operator to GLOBAL as in screenshot (ALL CAPS just in case) and change ro.build.description as in the screen shot (first line of first screen shot)
Good luck!

Sent from my LGLS990 using XDA Free mobile app

 

[rishidhar]

This seems to work but I get system.ui has crashed errors after changing the settings. It does seem to unlock it but it doesn't let me use the phone at all. Constant system.ui crashes

Ok please try these settings on your phone exactly as displayed in the screen shots. This should give you correct signal bars on your phone and get rid of the dreaded gsm icon (i hate that icon with a passion) and should show H icon if you have 3g or E icon if you have 2g. I've attached a screen shot to display this as well. I'm using this internationally but this should theoretically work domestically as well since after these settings the phone becomes truly global and not the gimped Sprint version. Please provide feedback on this thread to let me know if this works (Im the same person the OP used the phone of as a guide to unlock his as i had mine unlocked from Sprint).
I suggest you use Rom tool box to edit your build prop as there's minimal chances of it going into bootloop then.
So change your ro.build.target_operator to GLOBAL as in screenshot (ALL CAPS just in case) and change ro.build.description as in the screen shot (first line of first screen shot)
Good luck!

Sent from my LGLS990 using XDA Free mobile app

---------- Post added at 12:54 AM ---------- Previous post was at 12:30 AM ----------

This was tried on domestic network and not internationally so that might be the difference. I can use GSM networks domestically if I change ro.build.target_operator to any of the following values without any crashes

spr
ATT
TMO
VZW

Each one changes the user interface in its own way but ATT, TMO, VZW show the correct bars and correct icons.

This seems to work but I get system.ui has crashed errors after changing the settings. It does seem to unlock it but it doesn't let me use the phone at all. Constant system.ui crashes

 

[nmccord]

working or not hmmm

so is the unlock working now? and do u get 4g speeds on us model just got my phone if so can u send me a detail setup of what to do?

This seems to work but I get system.ui has crashed errors after changing the settings. It does seem to unlock it but it doesn't let me use the phone at all. Constant system.ui crashes



---------- Post added at 12:54 AM ---------- Previous post was at 12:30 AM ----------

This was tried on domestic network and not internationally so that might be the difference. I can use GSM networks domestically if I change ro.build.target_operator to any of the following values without any crashes

spr
ATT
TMO
VZW

Each one changes the user interface in its own way but ATT, TMO, VZW show the correct bars and correct icons.

 

[rishidhar]

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.

so is the unlock working now? and do u get 4g speeds on us model just got my phone if so can u send me a detail setup of what to do?

---------- 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.

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.

 

[xxsanioutlawxx]

F*ckin legit! Will try executing on my Sprint G3 to see if it'll work on ATT. Thanks and cheers!

 

[haixingau]

what's wrong

I've tried exactly what you mentioned but couldn't get data to work. I even tried changeing SPR
to OPEN....TMO....GLOBAL...tmo...and still could not get data to work...help plz...

 

[rishidhar]

Did you add the proper apn for your carrier?

I've tried exactly what you mentioned but couldn't get data to work. I even tried changeing SPR
to OPEN....TMO....GLOBAL...tmo...and still could not get data to work...help plz...

 

[weijoin]

like u said all strict by sprint, i think the apk lg systemUI provider in /system/pri-app/ maybe write something or check something than found not sprint's info then display the systemUI error message.

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.

 

[12manytimes]

Pull build.prop change SPR to spr and replace and change permissions...don't use OPEN..that's when I first tried it but its easier to change to spr..if u Dont dial 1 and then the number u get error but other than that its pretty straight forward

 

[sgnets]

not able to unlock pls help

tried changing ro.build.target_operator to spr, global, GLOBAL but i get service disabled or no service. using the phone in india AIRTEL carrier. please help. Thank you.

 

[iBowToAndroid]

Pull build.prop change SPR to spr and replace and change permissions...don't use OPEN..that's when I first tried it but its easier to change to spr..if u Dont dial 1 and then the number u get error but other than that its pretty straight forward

That can probably be fixed by using an SQ editor to edit the .db to remove the Assist Dial functions - that's how to solve it on the G2 and I'm assuming this is the same scenario

 

[rishidhar]

It should work when you change it to spr. Have you tried restarting the phone and making sure you have changed the network mode to GSM (auto) using the "Network" app that is available on the play store?

tried changing ro.build.target_operator to spr, global, GLOBAL but i get service disabled or no service. using the phone in india AIRTEL carrier. please help. Thank you.

 

[xxsanioutlawxx]

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?

 

[deron37129]

Theres alot of bouncing round in this thread could some possibly post a filtered version of what actually works for the sprint g3

Sent from my LGLS990 using XDA Free mobile app

 

[sgnets]

It should work when you change it to spr. Have you tried restarting the phone and making sure you have changed the network mode to GSM (auto) using the "Network" app that is available on the play store?

I tried changing in the Network app to GSM (auto) but i get no service. is it possible it is not working for my carrier?
My phone was not activated on sprint network, might that be a reason?

 

[overheadsmash50]

Can't change apn's

So far, i've gotten to the APN menu but I can't edit or add any apns. It only gives me an option to click on the sprint apn

EDIT: I figured it out!!!

1. BuidProp Editor to change my ro.build.target_operator from SPR to spr
2. Change Network mode to GSM/UMTS (Settings>Tethering & networks>Mobile networks>Network mode)
3. Reboot
4. Install Tweaker
5. Choose the APNs
DONE! If you try to change APNs before rebooting, you'll get the APN screen with no other options except cinet.spcs.

Thanks everyone

 

[nmccord]

So do u get 4g data speeds on gsm networks

So far, i've gotten to the APN menu but I can't edit or add any apns. It only gives me an option to click on the sprint apn

EDIT: I figured it out!!!

1. BuidProp Editor to change my ro.build.target_operator from SPR to spr
2. Change Network mode to GSM/UMTS (Settings>Tethering & networks>Mobile networks>Network mode)
3. Reboot
4. Install Tweaker
5. Choose the APNs
DONE! If you try to change APNs before rebooting, you'll get the APN screen with no other options except cinet.spcs.

Thanks everyone

 

[guillermo1014]

Hi, i bought 2 of these sprint g3. have tried the two methods but no luck first i tried remplacing the files but when i remplace the files and remove all sprint garbage i got full signal but when i try a call it says dialing but i dont hear anything and after +-30 secounds the dialer says "Out of service area" and ends the call.

So i flashed stock firmware over flashtool and changed SPR to OPEN and removed all sprint garbage. and the same i got full signal but when i try a call this time says Mobil network not suported.. and instead of com.android.phone has stopped. i got com.systemui has stopped.



i think are dummy phones.... just want that you confirm that s**t..

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