CU720 unlocked done w/usb drivers...
PROBLEM
network lock
TOOLS TO BE USED
z3x lg
usb cable
LG USB DRIVERS
LG DRIVERS
PROCEDURE
open z3x lg shell /double click cu720/search phone/then press unlock/ wait till finish...

Code:
LG 2-3G Tool v2.2 build 0048 supported models: 468 Mode: Normal Model: CU720 Build version: Mar 26 200812:40:01Oct 03 200723:00:00CU720 SW Version: CU720-MSM4090201C-V10l-MAR-26-2008-ATT-US IMEI: 01178300187482-3 BlueTooth Address: 00:21:FB:F4:A9:1B Phone Code: default Flash Name: toshiba_tya000bc00dogg Flash Info: 0696/0040/0800 Elapsed: 0 secs. --> (v2.2 build 0048) Mode: Normal Model: CU720 Build version: Mar 26 200812:40:01Oct 03 200723:00:00CU720 SW Version: CU720-MSM4090201C-V10l-MAR-26-2008-ATT-US IMEI: 01178300187482-3 BlueTooth Address: 00:21:FB:F4:A9:1B Phone Code: default Flash Name: toshiba_tya000bc00dogg Flash Info: 0696/0040/0800 Elapsed: 1 secs. --> (v2.2 build 0048) Send loader... Loader startup Ok! Init NAND Ok! Security backup saved to: C:\Program Files\Z3X\LG\LGTool\Backup\CU720_011783001874823_22082011_121213.sec Erase sec. zone... Write data to Phone.. Phone rebooted! Elapsed: 22 secs. --> (v2.2 build 0048)

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