Hello every one , we are facing a problem in finding the firmware for the M66FB-03-std module. Could you please send me the firmware for this module?
Initially, we were using the m66fa-04-stdn, and everything was working fine. However, the supplier sent us the M66FB-03-std module, and when we soldered it in place of the m66fa-04-stdn, it didn’t work. We tested for a short circuit and found that in the M66FB-03-std, the antenna pin and ground are short-circuited. We suspect that this might be the issue, so we’ve tried various solutions without success.
Currently, we are attempting to upgrade the firmware for the M66FB-03-std module. While searching in the forum, we found the firmware for the m66fa-04-stdn. Any assistance would be appreciated. If the problem does not stem from the firmware, could it be a hardware issue? Are there any differences in the connection schematic between these two modules?
Thank you.