Похожая ситуация. Заменил UEM на 6610. Вместо имея ???
Лог UFS
Reading Info from Mobile ...
Init Local Mode Failed
Warning, Cannot Read Info from Mobile !
RPL File Info:
IMEI: 350894301556480
CHCK: 26749
IMEI: 350894301556480
PROD: 0509512
ASIC: Type 2
1st Boot Ok, DCT4, UPP: 1120
FlId Aliasing with: 00EC22F0
Fl0: 0x01000000-0x017FFFFF,00EC22F2,Sam K5U64418TM
Algorithm: u_amd.fia, Ver: 4.52.0
UEM Writing Failed: Wr_UEM Wuem 10
UEM Write Failed

Лог JAF
MCU ID: 0x1120
Sending algo...
Algo is ready...
P-key nokia module version 01.00
Reading...
UEM ESN HEX: 00000000, ESN PLAIN: 0/0

Inspecting...
IMEI: 350894301556480
Booting phone...

MCU ID: 0x1120
Sending algo...
Algo is ready...
Writting UEM...
UEM Write OK.
Setting local mode...
Reading imei...
IMEI/ESN: ???????????????
Reseting warranty data...
Reseting LifeTimer...
Lifetime data not found!!!

MCU ID: 0x1120
Sending algo...
Algo is ready...
P-key nokia module version 01.00
Reading...
UEM ESN HEX: 00000000, ESN PLAIN: 0/0
Получается что ни UFS ни JAF не могут прописать UEM.