downgrade to v10 using LGUP and kdz and than do any operation you need - personally tested solution
Code:
LG 2-3G Tool v9.59
supported models: 1568
Start flashing.
Start reset FRP...
Laf Protocol: 01000005
Model name: LG-M250n
Software verion: M25012q
Android verion: 7.0
Target operator: GLOBAL
Target country: COM
Chipset: mt6750
IMEI1: 35xxxxxxxxxxxxx
IMEI2: 35xxxxxxxxxxxxx
Detecting write method...
Init write method...
fail
Init misc method...
fail
Init sign method...
Execute sign method...
done
Checking sign method...
done
Init EXT4 ...
rc1: 00000000,00000001,00000000,00000001,00000800
rc1: 00000001,00000001,00000000,00000001,00000800
rc1: 000000F9,00000001,00000000,00000001,00000800
rc1: 000000FA,00000001,00000000,00000001,00000800
rc1: 000000FB,000001F9,00000000,00000003,00000800
rc1: 000080F9,00000001,00000080,00000081,00000800
rc1: 000080FA,00000001,00000080,00000081,00000800
rc1: 000080FB,000001F9,00000080,00000083,00000800
rc1: 00010000,00000001,00000100,00000101,00000800
rc1: 00010001,00000001,00000100,00000101,00000800
rc1: 00010002,000001F9,00000100,00000102,00000800
rc1: 000180F9,00000001,00000180,00000181,00000800
rc1: 000180FA,00000001,00000180,00000181,00000800
rc1: 000180FB,000001F9,00000180,00000183,00000800
rc1: 00020000,00000001,00000200,00000201,00000800
rc1: 00020001,00000001,00000200,00000201,00000800
rc1: 00020002,000001F9,00000200,00000202,00000800
rc1: 000280F9,00000001,00000280,00000281,00000800
rc1: 000280FA,00000001,00000280,00000281,00000800
rc1: 000280FB,000001F9,00000280,00000283,00000800
rc1: 00030000,00000001,00000300,00000301,00000800
rc1: 00030001,00000001,00000300,00000301,00000800
rc1: 00030002,000001F9,00000300,00000302,00000800
rc1: 000380F9,00000001,00000380,00000381,00000800
rc1: 000380FA,00000001,00000380,00000381,00000800
rc1: 000380FB,000001F9,00000380,00000383,00000800
rc1: 00040000,00000001,00000400,00000401,00000800
rc1: 00040001,00000001,00000400,00000401,00000800
rc1: 00040002,000001F9,00000400,00000402,00000800
rc1: 000480F9,00000001,00000480,00000481,00000800
rc1: 000480FA,00000001,00000480,00000481,00000800
rc1: 000480FB,000001F9,00000480,00000483,00000800
rc1: 00050000,00000001,00000500,00000501,00000800
rc1: 00050001,00000001,00000500,00000501,00000800
rc1: 00050002,000001F9,00000500,00000502,00000800
rc1: 00058000,00000001,00000580,00000581,00000800
rc1: 00058001,00000001,00000580,00000581,00000800
rc1: 00058002,000001F9,00000580,00000582,00000800
rc1: 00060000,00000001,00000600,00000601,00000800
rc1: 00060001,00000001,00000600,00000601,00000800
rc1: 00060002,000001F9,00000600,00000602,00000800
rc1: 00068000,00000001,00000680,00000681,00000800
rc1: 00068001,00000001,00000680,00000681,00000800
rc1: 00068002,000001F9,00000680,00000682,00000800
rc1: 00070000,00000001,00000700,00000701,00000800
rc1: 00070001,00000001,00000700,00000701,00000800
rc1: 00070002,000001F9,00000700,00000702,00000800
rc1: 00078000,00000001,00000780,00000781,00000800
rc1: 00078001,00000001,00000780,00000781,00000800
rc1: 00078002,000001F9,00000780,00000782,00000800
rc1: 00080000,00000001,00000800,00000801,00000800
rc1: 00080001,00000001,00000800,00000801,00000800
rc1: 00080002,000001F9,00000800,00000802,00000800
rc1: 00088000,00000001,00000880,00000881,00000800
rc1: 00088001,00000001,00000880,00000881,00000800
rc1: 00088002,000001F9,00000880,00000882,00000800
rc1: 00090000,00000001,00000900,00000901,00000800
rc1: 00090001,00000001,00000900,00000901,00000800
rc1: 00090002,000001F9,00000900,00000902,00000800
rc1: 00098000,00000001,00000980,00000981,00000800
rc1: 00098001,00000001,00000980,00000981,00000800
rc1: 00098002,000001F9,00000980,00000982,00000800
rc1: 000A0000,00000001,00000A00,00000A01,00000800
rc1: 000A0001,00000001,00000A00,00000A01,00000800
rc1: 000A0002,000001F9,00000A00,00000A02,00000800
rc1: 000A8000,00000001,00000A80,00000A81,00000800
rc1: 000A8001,00000001,00000A80,00000A81,00000800
rc1: 000A8002,000001F9,00000A80,00000A82,00000800
rc1: 000B0000,00000001,00000B00,00000B01,00000800
rc1: 000B0001,00000001,00000B00,00000B01,00000800
rc1: 000B0002,000001F9,00000B00,00000B02,00000800
rc1: 000B8000,00000001,00000B80,00000B81,00000800
rc1: 000B8001,00000001,00000B80,00000B81,00000800
rc1: 000B8002,000001F9,00000B80,00000B82,00000800
rc1: 000C0000,00000001,00000C00,00000C01,00000800
rc1: 000C0001,00000001,00000C00,00000C01,00000800
rc1: 000C0002,000001F9,00000C00,00000C02,00000800
rc1: 000C80F9,00000001,00000C80,00000C81,00000800
rc1: 000C80FA,00000001,00000C80,00000C81,00000800
rc1: 000C80FB,000001F9,00000C80,00000C83,00000800
rc1: 000D0000,00000001,00000D00,00000D01,00000800
rc1: 000D0001,00000001,00000D00,00000D01,00000800
rc1: 000D0002,000001F9,00000D00,00000D02,00000800
rc1: 000D80F9,00000001,00000D80,00000D81,00000800
rc1: 000D80FA,00000001,00000D80,00000D81,00000800
rc1: 000D80FB,000001F9,00000D80,00000D83,00000800
rc1: 000E0000,00000001,00000E00,00000E01,00000800
rc1: 000E0001,00000001,00000E00,00000E01,00000800
rc1: 000E0002,000001F9,00000E00,00000E02,00000800
rc1: 000E8000,00000001,00000E80,00000E81,00000800
rc1: 000E8001,00000001,00000E80,00000E81,00000800
rc1: 000E8002,000001F9,00000E80,00000E82,00000800
done
Resetting frp...
rdb: 0000002E,000F3F04,00000001,00001000
rc1: 000F3F04,00000001,00000F3F,00000F40,00000800
rdb: 0000002E,000CFFAA,00000002,00001000
rc1: 000CFFAA,00000002,00000CFF,00000D00,00000800
FRP Reset done!
Done.
Elapsed: 101 secs. --> (v9.59)