when we issue this command
at+kcertstore?
below is the response, no OK at the end and module just hangs, no response to AT commands after that, similar behavior while writing certificates.
I don’t see such problem on dev kit:
ati3
HL7800-M.4.6.9.4
OK
at+kcertstore?
CONNECT
root_cert,0,0
root_cert,1,0
root_cert,2,0
root_cert,3,0
local_cert,0,0
local_cert,1,0
local_cert,2,0
OK
Are you testing on dev kit?
Firmware version is BHL7800-M.3.7.2.3.20191030
it seems like a faulty module, not every module we have behave like this.
Maybe you can upgrade to new fw and see if there is improvement
already tried, firmware upgrade fails as well, seems like memory corruption or some firmware triggered glitch.
How many modules are seeing this issue?
Is it ok to download a certificate to it?