Stuck on flashing minimal build off tasmota on TECKIN SP22

I followed the guide on heise. I already got the device info:

====================================================== Getting Info from IoT-device VTRUST-FLASH 1.0 © VTRUST GMBH https://www.vtrust.de/35c3/

READ FLASH: http://10.42.42.42/get?read=HEX-ADDRESS ChipID: xxxxxx MAC: YY:YY:YY:XX:XX:XX SdkVersion: 1.5.3(aec24ac9) BootVersion: 4 BootMode: 1 FlashMode: 1M DOUT @ 40MHz FlashChipId: 144051 FlashChipRealSize: 1048576 FlashChipSize: 1048576 FlashChipMode: 3 system_upgrade_userbin_check: user2 0x81000

======================================================

After this I try to get tasmota:

curl http://10.42.42.42/flash3

And got the following response:

Device should flash http://10.42.42.1/files/user2.bin and restart

Tasmota never started. Instead I see a SSID named ESP_XXXXXX. Connecting to it gives me the IP 192.168.4.2 and a default gateway on 192.168.4.1. I can ping the device on that address, but it didn’t reply to http requests.

Because user2.bin is linked to esp8266-ota-flash-convert.ino-0x81000.bin: What is it? Why the command don’t install sonoff-minimal.bin?

Do anybody have some hints for me, what I did wrong or some advises how I can continue without opening the device? Maybe this is also connected to issue #2?!

[modellbobby]

Hi Guys,

i have lot of TECKIN EU SP22 and i followed the procedure. I come till the SonoffXXXX AP turns on and then I only can setup my WIFI credentials on that but cannot set the model. Is this by design? All my TECKINS dissapear afterwards and seem to not connect to the net and are not reachable.

Please help!

[HeinrichLohse]

@baxerus, thanks for motivating me to just plug it in again. Surprisingly the sonoff-xxxx network showed up immediately. Now everythink works as expected.