Do the same for the other file. Note here, only first 2 boxes need to be checked with CHMOD value as 0600.
Look at the files after changing their values, the permissions are now same as the existing ones
Now reboot the phone . Half of the work is done.
Now we’ll do some changes in Build.Prop file via Build.Prop editor. This same thing can be done via root explorer as well, but then we have to change permissions, otherwise phone may get stuck in boot loop. So build.prop editor is a safer option.
Select the 3 dot icon on the right bottom corner & select edit.
A new page will open with build.prop files.
Scroll down to the lower half of screen and look for ro.build.target_operator=SPR
You’ve to just change “SPR” from upper case to lower case i.e spr
Now to save changes click on the floppy icon on top right.
A popup may ask for root permission, grant it. A confirmation message Saved build.prop will flash for a second.
Now turn off the phone, insert GSM sim, and turn it on. SIM must be detected if everything is done correctly. If not open Build.Prop editor and once again check if the value is changed or not. If not change SPR to lower case once again, Save changes and reboot.
Before doing the build.prop changes If you’ll to Settings<More<Mobile Network and select Network mode you’ll see only 4 network modes. After doing the changes there are more network options than before.
In Mobile Network if you’ll go to APN Settings you’ll notice now there is an option to add/edit apn settings. Before doing the modifications this field was grayed out.
If you’re facing any issue, feel free to ask via the comment section below.
Now that your Tribute 5 is unlocked you may like to install Xposed to customize it in a better way.
If you own LG Tribute HD LS676 please follow this Tutorial – LG Tribute HD LS676 GSM Unlock