SSL connection with Sim800l and hotspot

I am working on sim800l nowadays , I want ask several question ,
I did , http get method and several https get method (with AT+HTTPSSL=1)

but i can not connection with aws (AT+HTTPACTION=0 606 error) , this problem is probably about TLS version ,

Another topic , Can i do mobil access point with nodemcu , or hotspot . I want dont use wifi connection , just need mobil ,

Or do I need to use another module

Thank you

Hello and welcome!

Probably, since the default TLS version is 1.0 (a pretty old and unsecured version). For what I’ve read on the forum, there is a firmware update that might update the TLS protocol. You can check @RaviPujar tutorials on how to update the firmware, but you’ll have to look around for the proper firmware you need.

You can make a very limited “access point” / “router” with the nodemcu; but as far as I know, you can’t use it to access the internet transparently like you do for example with the wifi hotspot functionality of a smartphone.

Hi,

I connected sim800l with ttl convertor .
TTL RX - TX SIM800L
TTL TX - RX SIM800L
TTL GND - GND SIM800L
SIM800 VCC - 4V

Than after connected, VCC connect to GND SIM800L 1-2 second ,
Red filling is OK %100 , after i took error like photo


Can you help me about upgrade ?

I benefited down link
https: // www.raviyp .com/learn-how-to-update-the-firmware-of-your-sim800-modules/