Pololu Dual G2 High-Power Motor Driver 18v18 for Raspberry Pi/ motor problem

hello
i have a exam tomorrow and the input mA1 ,ma2 don’t work but the mB1 and mB2 work
help please.

bonjour
je passe mon bac demain et je me sert de la carte pololu , se matin j’arrivais a piloter les deux jeux de roues avec mon controlleur , et sans comprendre pourquoi les ports mA1 ,ma2 ne fonctionne plus . besoin de solution merci.

Hello.

Your post does not have enough information for me to help troubleshoot your motor driver. Reading through our support page should give you a good idea of the kind of information that would be helpful in troubleshooting.

-Patrick