Repair, firmware, sale of ECU.

Repair of Electronic Control Units: ICE, SRS, automatic transmission, Body ECU and other controllers. - Repair of faulty units - Removal\disabling of the immobilizer - Removal/disabling of the oxygen sensor (lambda probe) - Replacing the ECU (refilling) - Removing Crash in SRS-Airbag units, etc. Please write on "WhatsApp" what car, year, volume (preferably a photo of a technical passport) and a task to complete. Please write in detail and clearly. Attach a diagnostic sheet with error codes (if any). Thanks for understanding!