bmw cas3+ flash file

anteater5386 said:

Hi,
i ve read cas3+ by R270 programmer and i put it in the car there is no ignition and found the flash is corrupted. Could i get flash bin
thanks

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Hello. You would have been able to get it if you hadn’t broken the forum rules—specifically, creating multiple accounts to bypass the download timer.

Do any one has CAS3+ bin file (Eprrom + Flash) file please......

abdo2u said:

Do any one has CAS3+ bin file (Eprrom + Flash) file please......

Click to expand...

This thread is about CAS3+ flash files, so let me address the technical side:

Important: A CAS3+ flash file is not universal — it is tied to the specific hardware and software version of your module. Simply flashing someone else's bin will likely result in a non-functional CAS.

To get proper help, please provide:

• CAS3+ part number (printed on the module, e.g., 9XXXXXx)
• Hardware version (HW) and Software version (SW)
• The IC type on the CAS (e.g., 0L01Y, 0L15Y, 1L15Y — this determines the flash chip)
• Vehicle model, year, engine
• Did you read both EEPROM and Flash before the corruption, or only one?
• What exactly happened — did R270 fail mid-write, or did you flash a wrong file?

General guidance:

• The EEPROM (D80 or similar) contains the ISN, key data, VIN, mileage — this is vehicle-specific and cannot be replaced with a generic file.
• The Flash (external flash IC) contains the CAS firmware/program code — this can sometimes be sourced from another CAS3+ with the same HW/SW version, but the EEPROM must still match your car.
• If your EEPROM is intact and only the flash is corrupted, there is a chance to recover by finding a matching flash dump. But if both are corrupted, recovery is much more complex (you'd need ISN from DME, key sync, etc.).

Post the details above and someone may be able to help with a matching flash file or point you in the right direction.

Hi Gemini...
Really, thanks for your help...
Actually, the label on the case it's totaly wiped and can't be read...
about the HW and the SW really I dont know ..
But I do have a copy of the EEPROM and the Flash data, please see the attachment ..
The chip IC type is 0L15Y,
The vehicle is a BMW E70 2010 N62 8 CLY..
The car cranks and runs, but when turning off the engine, for a while can't be start, it's can crank but won't run or the engine runs, just cranks..

what fault codes are present ?

al70 said:

what fault codes are present ?

Click to expand...

here is the code. sorry for late...

From the ISTA screenshot I can see the vehicle details and fault codes:

Vehicle: E70 X5 4.8i / N62B48O1 / AUTO / ECE / L1 / 2007/04
VIN: LZ74424 (matches your EEPROM dump)

You've marked 00A0B1 — CAS: Input, selector-lever position, implausible with the red arrow, and it's existent (yes) — meaning currently active.

Looking at your symptom — car starts and runs, but after turning off it won't restart for a while (cranks but won't fire) — the more relevant faults may actually be these:

• 006F57 — No message (engine control, 0xAC), receiver DSC, transmitter DME-DI
• 00A3AD — No message (engine data, 0x1D0), receiver KOMBI, transmitter DME
• 00A3AE — No message (engine speed, 0x0AA), receiver KOMBI, transmitter DME

These three indicate DME dropping off the bus, which on the N62 E70 is a classic pattern for either:

1. CAS-DME ISN synchronization issue — after shutdown the CAS doesn't release the start enable on the next attempt.
2. Selector-lever position fault (00A0B1) — on auto transmission E70, if the CAS intermittently doesn't see a valid P/N signal, it can block the start enable. This one is active and could be your culprit.
3. DME relay / power supply issue — DME loses power momentarily on hot restart.

Before blaming the CAS flash, check the following:

• When the no-start happens, does ISTA show the CAS in "start released" or "start blocked" under vehicle management?
• Can you read the ISN from the DME and verify it matches the CAS ISN?
• Check the gear selector switch and its wiring — the 00A0B1 being permanently active is suspicious.

Regarding your flash dump — the 512KB file with entropy of 7.00 bits/byte looks like valid programmed flash content, not corrupted. A corrupted or erased flash would show large blocks of 0xFF. So the flash itself may not be your actual problem.

Can you scroll down in the fault list and show the remaining codes? You have 45 total faults — there may be more CAS-specific codes further down that would help narrow this down.

here so,e details of the CAS....

Good, now we have the full picture from ISTA:

• BMW Part Number: 9389116
• Coding Index: 9
• Diagnosis Index: 1696
• Function Software: 2.8.1
• Hardware Number: C4
• Operating Software: 3.3.0
• Supplier: Siemens
• Variant Index: 21313
• Production Date: 02.08.2007
• Flash IC: 0L15Y

Key observation: ECU state says "ECU responding properly". This means your CAS3+ flash is not corrupted. If the flash were damaged, the CAS would not identify itself on K-CAN with valid part number, SW versions, and proper diagnostic communication.

This changes the diagnosis completely. Your intermittent no-start issue is not a flash problem. Going back to your symptoms (starts and runs, but after shutdown won't restart for a while — cranks but no fire), combined with the active fault 00A0B1 — CAS: selector-lever position, implausible:

Most likely causes:

1. Gear selector switch (start enable path) — The CAS needs a valid P/N signal to release start authorization. If this signal is intermittent, the CAS will block fuel injection on restart. Check the selector lever position sensor and its wiring.
2. ELV (steering lock) — On E70 CAS3+, a sticky or failing ELV can intermittently block start release.
3. DME relay / hot-soak issue — The N62 is known for DME relay problems causing hot-restart failures. The DME communication faults (006F57, 00A3AD, 00A3AE) support this.

Next steps:

• When the no-start happens, check in ISTA → CAS → Component triggering → whether "Start released" shows Yes or No
• Clear all faults, drive the car, reproduce the no-start, then immediately read faults again — see which ones return as "existent"
• Check the DME main relay (K6300)

You do not need a replacement flash file — your CAS firmware is intact and working.

OK, let me check all steps and let you know ...