Is it possible to upgrade software for POS-systems/terminals of retail and wholesale stores bypassing the service company?

Question

JavaScript

Interested in the general possibility of finalizing the software (leading software) for POS-systems / POS-terminals for automation of retail and wholesale stores, bypassing the service company (They are dumb and do not burn with the desire to modify their software for us).

I am sure that Habré has competent specialists in this matter. Respond plz!

Answer 1

It is possible, but if they notice, they will remove it from service and / or demand money, you need to look at the contract, talk with lawyers.

Answer 2

On the technical side, there are two problems:

1. Some devices may be blocked from modification / third-party firmware. Unlocking is certainly possible, but it's time and money.
2. If we talk specifically about refinement, we need the sources of the current software, which is a problem for the compiled software, if not Open source of course.

Based on the budget and needs, it is worth considering the option of developing from scratch, perhaps this will be more effective.