I have an ESP8266 module that is 5v (both Power and Logics).
It was created to work on 5v by using an on board LDO + Level Converters.
I bought it on 2016, and it came with AT v0.40.0.0 + SDK v1.3.0, by Ai-Thinker:
I updated its Firmware yesterday, to a newer version: AT v188.8.131.52 + SDK v2.2.1, by Espressif
I did some testings on it, and while the module works and responds to AT Commands,
it seems that the RF abilities of the module are less good than what they were with the older Firmware version.
So to verify that, I would like to try again the original Firmware,
is it possible to download it?
Thank you very much