We develop firmware for the NUCLEO-WL55 development board, which features the STM32WL55CE microcontroller. For programming, use the NUCLEO-WL55 board which includes a built-in programmer. This method allows you to flash code onto the STM32WL55CE microcontroller.

We maintain a dedicated "Common Issues" page that documents frequently encountered problems and their solutions. This resource is regularly updated with new issues and troubleshooting steps as they arise.

To get help with your issue, you have three options:

1. fill out our contact form with details about your problem

2. send an email directly to support@mend0z0.com.

3. Join our Facebook group @ https://www.facebook.com/share/g/17NJ8czzTN/

4. Ask about it on LinkedIn @ https://www.linkedin.com/groups/10196055/

Thanks to AI and new technology, we can provide support in your native language even if you're not fluent in English.

Each initial MCU flash requires payment, and the MCU gets registered in our database. If your MCU gets cleared/erased, you can reprogram it for free since it's already registered. New firmware versions require full payment, but revisions within the same version are free of charge.

For our point of sale system, we accept credit cards, debit cards, and mobile payments through our Square partnership. Specifically:

• Credit Cards: Visa, MasterCard (including Visa Electron, MasterCard SecureCode, and Maestro cards)

• Debit Cards: All major debit cards

• Mobile Payments: Contactless payments, chip transactions, and magstripe

• Digital Wallets: Apple Pay, Google Pay

• Buy Now, Pay Later: Klarna, Afterpay

There are no refunds available. However, if bugs are discovered, you can update your firmware within the same version at no cost. If the firmware version has changed to a new version, you will need to purchase the new version.