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By Ribeiro Santos
#12665 Hi,
I received my ESP-12 (and another ESP-201) connected with a USB To TTL adapter and power with 3.3v selected (power just from the usb adapater).

Typing AT+GMR returns 0018000902

After uploading with the newest firmware and restart , serial output shows several errors and reboots again, again, ... and again...

If I select 5v power, in USB adapter, it works without any problem. It happens both ESP.
How can I restore to the original firmware, or where can I find it?

I want to check if it could be some problem originated by the firmware.

Thanks,
Ribeiro Santos