NISSAN MARCH ISSUES

[Black Alien]

Hello.,
need help here https://cartechnology.co.uk/images/smilies/sweating.gif. Got this Nissan March 2010 with smart key. It got a huge spark to the extent that ECU and BCM got hardware faults beyond repair. I then imported BCM and ECU from japan..they got the parts from a 2010 nissan March . the only difference was BCM part number..it had a slight difference. I tried to program the key using x 100 pro but it says "program failure" i then read RL76 in the BCM to precode the key direct in the BCM using Tango. After writing the file back, the immo security light stays ON without blinking when the car is powered ON. it cranks but the engine cannot start.

newECU and BCM part numbers:
ECU: A56-E39
T1M 0X13

BCM: 284BB11HH2A
LOT NO: 1509
E11 116RI - 000182



old ECU and BCM part numbers:
ECU: A56-E39
T5X 1805

BCM:284B11HJ2A
LOT NO: 1727
E11 116R1 - 000182

ECU eeproms: 95640
BCM eeproms: RL76

my head is now empty on what to do next https://cartechnology.co.uk/images/smilies/tears.gif
how do i deal with this

Regards.