Vivitar 3700 module for canon does not work

[danh]

i just recently recieved a vivitar 3700 in mint condition, and the module for it, but the module does not seem to work. i ordered it from ebay and there are some signs of use. am i not using it correctly or is there a problem that can be fixed. thank you.

 

[compur]

The manual is here.

If the seller said it works and it doesn't, ask the seller for a return/refund.