answer: Successfully Unlocked / Flashed Phones By hwk
1680c b successfully unlock and convert to 1680c
steps:
flash 1680c
write pm
unlock
change filter
done
1st Boot: Ok, DCT4, UPP: 3162 [Rm-394] [2.0.9.0]
2nd Boot: u3_2nd.fia, Ver: 4.79.0
Fl0: 0x01000000-0x02FFFFFF,0001317E,Amd 29NS256P
Algorithm: u3_amd.fia, Ver: 4.79.0
Algorithm Ok, MSID: 8431D833A9FE9F737AA2E32882
Decoded MSID: 2C40BAE9-00CB38B5-AA000000
Encoded FAID: 494F8D7F-A556BA14-2059566C
IMAGE: rm394__05.61.mcusw
Area1: 0x01000000-0x0101FFFF Erased, Time: 00:00
Area2: 0x01020000-0x01C3FFFF Erased, Time: 01:21
MCU Flashing Completed, Time: 03:20
Chip SECTOR_SIZE: 128k, File FAT_SECTOR_SIZE: 128k
IMAGE: rm394__05.61.image_el
Area1: 0x02000000-0x02DBFFFF Erased, Time: 01:33
Area2: 0x02DC0000-0x02F9FFFF Erased, Time: 00:13
CNT Flashing Completed, Time: 01:19
Running: Nokia File Server
Contents Package Extracting Ok, Time: 00:07
1st Boot: Ok, DCT4, UPP: 3162 [Rm-394] [2.0.9.0]
2nd Boot: u3_2nd.fia, Ver: 4.79.0
Fl0: 0x01000000-0x02FFFFFF,0001317E,Amd 29NS256P
Algorithm: u3_amd.fia, Ver: 4.79.0
Algorithm Ok, MSID: 84FFFDF89E7EC051C025E4168D
Decoded MSID: 3E4EBAE9-00CB38B5-AA000000
Encoded FAID: F7C39F5F-FAB56E93-CBFA8B6B
IMAGE: rm394__05.61.ppm_el
Area1: 0x01C40000-0x01FFFFFF Erased, Time: 00:26
PPM Flashing Completed, Time: 00:50
Flashing Completed, Rebooting Mobile
PM File: 1680C RM-394.pm
Group Id: [1] Rec: 0 Len: 120 .... Ok 2
Group Id: [1] Rec: 2 Len: 90 ..... Ok 1
Group Id: [1] Rec: 4 Len: 110 .... Ok 2
Group Id: [1] Rec: 6 Len: 90 ..... Ok 1
Group Id: [1] Rec: 11 Len: 2 ...... Ok 1
Group Id: [1] Rec: 12 Len: 2 ...... Ok 1
Group Id: [2] Rec: 0 Len: 432 .... Ok 4
Group Id: [3] Rec: 0 Len: 2 ...... Ok 1
Group Id: [4] Rec: 1 Len: 800 .... Ok 7
Group Id: [4] Rec: 3 Len: 10 ..... Ok 1
Group Id: [4] Rec: 4 Len: 8 ...... Ok 1
Group Id: [4] Rec: 5 Len: 8 ...... Ok 1
Group Id: [4] Rec: 6 Len: 8 ...... Ok 1
Group Id: [4] Rec: 9 Len: 5 ...... Ok 1
Group Id: [4] Rec: 16 Len: 4 ...... Ok 1
Group Id: [4] Rec: 18 Len: 80 ..... Ok 1
Group Id: [4] Rec: 19 Len: 4 ...... Ok 1
Group Id: [4] Rec: 28 Len: 2 ...... Ok 1
Group Id: [7] Rec: 0 Len: 4 ...... Ok 1
Group Id: [7] Rec: 1 Len: 32 ..... Ok 1
Group Id: [7] Rec: 2 Len: 4 ...... Ok 1
Group Id: [8] Rec: 0 Len: 12 ..... Ok 1
Group Id: [8] Rec: 1 Len: 12 ..... Ok 1
Group Id: [8] Rec: 2 Len: 128 .... Ok 2
Group Id: [8] Rec: 3 Len: 128 .... Ok 2
Group Id: [8] Rec: 6 Len: 4 ...... Ok 1
Group Id: [8] Rec: 7 Len: 8 ...... Ok 1
Group Id: [8] Rec: 8 Len: 8 ...... Ok 1
Group Id: [8] Rec: 9 Len: 24 ..... Ok 1
Group Id:[120] Rec: 0 Len: 944 .... Ok 8
Group Id:[120] Rec: 1 Len: 160 .... Ok 2
Group Id:[120] Rec: 2 Len: 130 .... Ok 2
Group Id:[120] Rec: 3 Len: 112 .... Ok 2
Write PM Done, Time: 00:08
IMEI: 011681-00-023548-5, ASIC: 11
Simlocks Initialization Aborted
IMEI: 011681-00-023548-5, ASIC: 11
00000000: FA E6 9C 7F ...
FILE : rm394__05.61.mcusw
1st Boot: Ok, DCT4, UPP: 3162 [Rm-394] [2.0.9.0]
2nd Boot: u3_2nd.fia, Ver: 4.79.0
Fl0: 0x01000000-0x02FFFFFF,0001317E,Amd 29NS256P
Algorithm: u3_amd.fia, Ver: 4.79.0
Algorithm Ok, MSID: 8431D833A9FE9F737AA2E32882
Decoded MSID: 2C40BAE9-00CB38B5-AA000000
Encoded FAID: 494F8D7F-A556BA14-2059566C
Area1: 0x01080000-0x0109FFFF Erased, Time: 00:00
PAT Flashing Completed, Time: 00:02
IMEI: 011681-00-023548-5, ASIC: 11
SimLocks Initialized (Patch Ok), Time: 00:00
FILE: rm394__05.61.mcusw
1st Boot: Ok, DCT4, UPP: 3162 [Rm-394] [2.0.9.0]
2nd Boot: u3_2nd.fia, Ver: 4.79.0
Fl0: 0x01000000-0x02FFFFFF,0001317E,Amd 29NS256P
Algorithm: u3_amd.fia, Ver: 4.79.0
Algorithm Ok, MSID: 8431D833A9FE9F737AA2E32882
Decoded MSID: 2C40BAE9-00CB38B5-AA000000
Encoded FAID: 494F8D7F-A556BA14-2059566C
Area1: 0x01000000-0x0101FFFF Erased, Time: 00:00
Area2: 0x01080000-0x0109FFFF Erased, Time: 00:00
UNP Flashing Completed, Time: 00:05
SimLocks Initialized, Time: 00:58