[ESP8266] Reboot fails after firmware change from dev to release

[GallusMax]

Platform

ESP8266

Model name

ESP8266

nRF24L01+ Module

nRF24L01+ plus

Antenna

external antenna

Power Stabilization

~100uF Elko

Connection diagram

Connection diagram I used:

nRF24L01+ Pin	ESP8266 GPIO
Pin 1 GND [*]	GND
Pin 2 +3.3V	+3.3V
Pin 3 CE	GPIO2 CE D4
Pin 4 CSN	GPIO15 CS D8
Pin 5 SCK	GPIO14 SCLK D5
Pin 6 MOSI	GPIO13 MOSI D7
Pin 7 MISO	GPIO12 MISO D6
Pin 8 IRQ	GPIO0 IRQ D3

nRF24L01+ Pin	ESP32 GPIO
Pin 1 GND [*]	GND
Pin 2 +3.3V	+3.3V
Pin 3 CE	GPIO4 CE D4
Pin 4 CSN	GPIO5 CS D5
Pin 5 SCK	GPIO18 SCLK D18
Pin 6 MOSI	GPIO23 MOSI D23
Pin 7 MISO	GPIO19 MISO D19
Pin 8 IRQ	GPIO0 IRQ D0

Note: [*] GND Pin 1 has a square mark on the nRF24L01+ module

Connection picture

• I will attach/upload an Image of my wiring

Version

0.5.104

Github Hash

25695fc

Build & Flash Method

Platform IO (build & flash)

Desktop

Linux

Setup

Its about booting into another firmware only.

• Reboot device after successful save: [x]
• SAVE

Debug Serial Log output

No response

Error description

Running DTU Version: 0.5.104 (development branch with improved stability, but broken API)
Upgrade was flawless from 0.5.66 with 230319_ahoy_0.5.104_25695fc_esp8266.bin

Because of the broken/changed API I planned a downgrade to latest Release 0.5.66

1. Go to http://ahoy-dtu/update
2. upload 221230_ahoy_0.5.66_esp8266_f8fe044.bin
3. Reboot
4. and down we went 8-)
5. I expected the DTU to reappear after firmware change

[Argafal]

If I was you I'd try to erase the flash, and then flash 0.5.66 from scratch. Then re-configure.

The settings have changed in later dev versions, so I don't think you can downgrade from 0.5.104 to 0.5.66 without starting over.

Curious to hear what you mean saying that the API is broken. Maybe you can open a separate issue for that? Fixing that surely must be a better solution than downgrading to 0.5.66, given that something like 0.5.105 will soon become the next release. ;) Edit: Found issue #799

[GallusMax]

If I was you I'd try to erase the flash, and then flash 0.5.66 from scratch. Then re-configure.

The settings have changed in later dev versions, so I don't think you can downgrade from 0.5.104 to 0.5.66 without starting over.

Thanks for the hint, flashing from scratch is left over as last resort.
BUT: uploading a firmware and rebooting into it should always work.
Ok - maybe it worked, but dropped the configured Wifi, showing up with an access point? At least its nasty from abroad. ;-)