Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - Printable Version +- CarTechnoloGY (https://cartechnology.co.uk) +-- Forum: All About IMMO/ECU , ChiPTuninG , Dashboard , Locksmith , AirbaG , Carradio (https://cartechnology.co.uk/forumdisplay.php?fid=3) +--- Forum: IMMO & LOCKSMITH (https://cartechnology.co.uk/forumdisplay.php?fid=9) +--- Thread: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH (/showthread.php?tid=85962) |
Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - JagM - 26-11-2023 Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH I copied the whole content of SPC5746, SPC5747, and 95128 eeprom, from a faulty donnor BCM [1] to a second-hand BCM [2], but after fitting BCM [2] to the car, there is no ignition, and the Pathfinder can't communicate with the car. The BCM [1] is still working in the car (despite its other fault). I restored the original content of the BCM [2] (I did a backup), but now it doesn't communicate with Pathfinder as it did before. I also noticed that the BCM [2] (now not working) keeps modifying the content of the SPC5748 SM-FLASH (original or copied from Donnor). It deletes a number of VIN records and changes some other data. So my question is: Is copying the whole content of the SPC5746, SPC5747, and 95128 eeprom not enough to make a workable clone? Is there something else on the BCM PCB that needs to be modified? RE: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - sixcode - 26-11-2023 what tool you did use for reading mcu's? and what did you read in these? RE: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - JagM - 26-11-2023 (26-11-2023, 13:41 PM)sixcode Wrote: what tool you did use for reading mcu's? IIv'e used VVDI PROG for MCU's, and XGecu T56 for eeprom. MCU content:
RE: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - sixcode - 27-11-2023 what is the GMW folder? did you buy exact same donor bcm? RE: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - JagM - 27-11-2023 The JLR BCM units from ~2016 contain both BCM (Body Control) and GWM (Gateway) modules in a single box. The SPC5748 takes on GWM functions, and the SPC5746 is a BCM. The source and donnor modules differ in the last letter (G/H), but in the JLR, this is the indicator of the FW version loaded into brand new modules and is owerwritten by SDD/Pathfinder during module replacement/fitment anyway. RE: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - sixcode - 27-11-2023 for bcm and GMW your missing UTEST (Small Hardware Security Module Code Block 16KB), BAF is OTP so no writing for that one RE: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - JagM - 27-11-2023 I get an error when I try to read the UTEST memory (on working and non-working devices). Also, it looks like the UTEST is OTP memory (according to NXP). It seems that the UTEST flash read protection is set. RE: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - sixcode - 28-11-2023 BAF is otp, UTEST not, try xprog ori RE: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - JagM - 28-11-2023 That is confusing then. The MCU User manual states: Code: 4.2 UTEST flash memory If the UTEST can only be "over programmed" (can't be erased), then a direct copy from a different MCU is obviously not possible. Also, the description for the xprog software auth, says: Code: Supported devices: So, no UTEST modification for xPC5746C / xPC5748C devices... The question is, is the UTEST modification necessary during clonning ? RE: Clonning issue - Jaguar / Land Rover BCM HPLA-14F041-BH - diag06 - 26-01-2024 ............... |