Original file

Opel Sintra 0261203956 / 90505779

An original (stock) flash read of the unknown control unit control unit, fitted in Opel Sintra, hardware number 0261203956 and software number 90505779, 128.00 KB. The file is supplied exactly as it was read from the unit, byte for byte; nothing is changed in it.

Technical data

Vehicle
BrandOpel
Car modelSintra
Engine3.0
Displacement3.0
Control unit
Control unitunknown control unit
ECU makerBosch
Hardware number0261203956
Software number90505779
File
File typeOriginal flash read
File size128.00 KB
File keye0731adcae6b36da
Price€15

About this file

Typical uses: restoring a control unit to its factory software after a failed flash or a corrupt memory, a clean base before any change, comparing a read of your own with the original. The checksum is the one of the read; your programmer or the CARTESIAN app corrects it after a change.

In CARTESIAN this original file is the base for the solutions it supports, such as DPF off, EGR off, lambda off and DTC off, each saved with a correct checksum, and for returning a modified unit to stock.

How to use this file

  1. Order with your e-mail address; the download link comes right after the payment and is valid for 30 days.
  2. Open the file in your programmer, compare its numbers with your unit and check the checksum.
  3. Write it only to a unknown control unit whose label carries the same hardware and software numbers.

Before you write Compare the numbers on your control unit with this file, hardware number 0261203956 and software number 90505779. A file written to a unit with other numbers can damage it. Not sure? Give your own read to the search above: it is compared by content.

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unknown control unit original files