I cannot make PCBs for MSOP devices so I bought some modules through Ali Baba. Several suppliers offer the same module. It works correctly with 1:1 compression but not with any other resistor value from Pin 8 to Vcc+ (3 V). It stays in 1:1 mode. For 10:1, I am using 180k. In view of the wide availability of these modules, I wonder if anyone else has made them work or found the problem and cured it. What can I do in the way of probing the module to try to find what is wrong.