liberar lg ls775

Has probado con Octopus? https://octoplusbox.com/en/download/software/

Captura:
https://i.ibb.co/Lg5KR02/ls775-unlock.png

Log de Octopus:

Código:

Welcome to Octoplus/Octopus Box LG Software version 2.9.2 -------------------------------------------------------------------------------- Checking data...OK Platform: LG Qualcomm Selected port: COM3 Selected model: LS775 Reading info... Initializing ADB...OK Waiting for phone... Please, reconnect phone, enable USB debugging, and try again. To enable USB debugging, please perform the following steps: 1. Disconnect cable 2. Install LG Android ADB drivers 3. Go to "Settings" -> "About phone" -> "Software information" 4. Click on Build number 5 times 5. Enable "Settings" -> "Developer options" -> "USB debugging" option 6. Connect the cable and check, whether ADB interface has appeared in PC Device Manager.OK Model ID: LGLS775 Phone firmware version: LGLS775AT-00-VB-SPR-US-SEP-13-2017-ARB01+03 Short firmware version: VB Kernel version: 3.10.49-g09680f4-00004-g35c9c266 (lgmobile@LGEACI6R5) (gcc version 4.8 (GCC) ) #1 SMP PREEMPT Wed Sep 13 16:12:45 KST 201 Android version: 7.0 Hardware: Qualcomm Technologies, Inc MSM8916 0 Please, type ##3424# to get SPC / MSL / Service Code...OK Input , go to "Diag" menu and select "Enable" option. Found model LS775ZVB:ÿd at port COM70 Reading info... Model ID: LGLS775 IMEI: 356304-07-176562-8 Android version: 7.0 Battery level: 30% Mode: Normal Firmware compiled date: Aug 01 2017 Firmware compiled time: 03:00:00 Firmware released date: Sep 13 2017 Firmware released time: 16:19:07 SW Version: MPSS.DPM.2.0.c11-00069-M8936FAAAANUZM-1.109817.1 IMEI: 356304-07-176562-8 SPC: 824230 MEID: 35630407453169 Mobile ESN: 80942080 SSD_A: 0000000000000000 SSD_B: 0000000000000000 OTKSL: 906551 NAM Name: Sprint User Lock Code: 4627 Switching to Download mode...OK Initializing flash...OK Reading partitions...OK Detecting writing method... LAF Error: 80000121. Trying second method...OK Reading Carrier...OK Unlocking...OK Writing Carrier...OK Phone successfully unlocked! Performed by 2.9.2 Software version.