Here is what I’ve done to manually update the PRL on my new G2. I don’t want to debate the reasons for this. But here’s one way to do it without rooting.
NOTE: This method, to obtain your MSL, only works on the the ZV8 and ZCA software versions. They changed something in ZVC and later versions.
Note: The easiest way to get MSL/SPC code is to just dial ##443336772# on your dial pad and you don't even have to be rooted.
Note: SPC is your MSL. They are the same things.
Note: All this was done on Windows 7-64 bit.
Part 1, Connecting the phone in diagnostics mode:
Part III, Update your PRL:
A. Click the “Send SPC” button. The dialog will show “Device Unlocked”.
B. Click the “Provision” button. The dialog will show that the MDN, MIN and SID have been written and the phone will reset.
C. On the phone, go to Settings > About Phone > Status and see if it shows you new PRL number.
D. On thee phone dial ##3424# and disable the DIAG mode.
I was also able to connect the phone to DFS (after getting my MSL with Basic Flasher). But didn’t have success writing the PRL in DFS. I used this 16 digit password EBB4EDB0B8B8C2BD in DFS. It reported “Device Unlocked” but if I tried to write anything in DFS the com port would lock up. Not sure what the issue there is, perhaps it would work if rooted.
NOTE: This method, to obtain your MSL, only works on the the ZV8 and ZCA software versions. They changed something in ZVC and later versions.
Note: The easiest way to get MSL/SPC code is to just dial ##443336772# on your dial pad and you don't even have to be rooted.
Note: SPC is your MSL. They are the same things.
Note: All this was done on Windows 7-64 bit.
Part 1, Connecting the phone in diagnostics mode:
- Install USB drivers. http://www.lg.com/us/support-mobile/lg-LGD801BK. Use the Tmobile D801 USB drivers since it is the same as the AT&T drivers and the LS980 page only had directions to update drivers via the LG Mobile Tools.
- On the phone, enable USB debugging in developer options (tap the build # in Settings > About Phone > Software Information, 7 times to enable developer options).
- Dial ##Diag# (##3424#) enable diagnostics mode.
- Connect phone, select "charge only"
- Check windows device manager to see if you have a com port. It should be listed as “LGE AndroidNet USB Serial Port (COMxx) (xx=port #).
- Get Basic Flasher http://forum.xda-developers.com/showthread.php?t=2394499. (Great tool! Please thank the poster "bigfdaddy2” and make a donation at tiny.cc/oriax123donate if you like it.)
- Open Basic Flasher, password is oriax123.
- In Basic Flasher:
A. Click the “Scan” button.
B. Select the “LGE AndroidNet USB Serial Port (COMxx)” and ensure the COM port on the drop down menu next to the "Scan" button matches the COM port listed in the display section (see attached screen shot). If it does not, manually select the correct COM port in the drop down menu that matches the LGE device.
C. Click the "Connect" button.
D. Click the “Read Device” button. The screen should populate with you MDN, MIN and SID.
E. Under Method, select "LG"
F. Click “Read SPC”. The SPC field should populate with your SPC.
Note: Stop here and disable the DIAG mode (dial ##3424# and select disabled) if all you want is your SPC/MSL.B. Select the “LGE AndroidNet USB Serial Port (COMxx)” and ensure the COM port on the drop down menu next to the "Scan" button matches the COM port listed in the display section (see attached screen shot). If it does not, manually select the correct COM port in the drop down menu that matches the LGE device.
C. Click the "Connect" button.
D. Click the “Read Device” button. The screen should populate with you MDN, MIN and SID.
E. Under Method, select "LG"
F. Click “Read SPC”. The SPC field should populate with your SPC.
Part III, Update your PRL:
- Click the “…” next to the PRL field and browse to the file location of the PRL you want to load, select the PRL. In Basic Flasher:
A. Click the “Send SPC” button. The dialog will show “Device Unlocked”.
B. Click the “Provision” button. The dialog will show that the MDN, MIN and SID have been written and the phone will reset.
C. On the phone, go to Settings > About Phone > Status and see if it shows you new PRL number.
D. On thee phone dial ##3424# and disable the DIAG mode.
I was also able to connect the phone to DFS (after getting my MSL with Basic Flasher). But didn’t have success writing the PRL in DFS. I used this 16 digit password EBB4EDB0B8B8C2BD in DFS. It reported “Device Unlocked” but if I tried to write anything in DFS the com port would lock up. Not sure what the issue there is, perhaps it would work if rooted.
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