Custom code upgrade

About this service

Custom code upgrade is a separate service for an existing unlock. Tell the team what has already been done to the ECU and what upgrade you are requesting. Eligibility and the scope of the work need to be confirmed before you choose this service.

Supported ECUs and vehicles

The catalogue identifies this as an upgrade service. The existing unlock must be reviewed for eligibility; the name does not establish which code or functions are included.

What you need before ordering

• Vehicle details and VIN.
• ECU part number and software version, where available.
• The number of units and a description of the requested work.
• Contact and delivery details; company and VAT information for business enquiries.

Provide these details through your order enquiry. If you need help identifying a unit, ask the team before arranging shipment.

How it works

1. Confirm the application. Send the vehicle and ECU information for a compatibility check.
2. Review your quote. Agree the scope, completion time, applicable VAT and shipping total.
3. Follow the invoice. ECU orders are paid by bank transfer using the instructions in the orders portal.
4. Arrange the agreed shipment. Where an ECU is to be sent, follow your order instructions and use DHL Express to the office address provided.
5. Processing and return. The agreed work and return arrangements follow your confirmed order.

The full order process → · DHL Express shipping instructions → · Pricing, VAT and payment →

Turnaround

Ask FEMTO to confirm the processing time for your exact request before accepting the order. Carrier transit time is separate from service processing time.