[BUG] Waiting for Content/Flash not possible

[Kleinheribert]

PROBLEM DESCRIPTION

A clear and concise description of what the problem is. Nextion flash not possible with Tasmota error Message in Console: Something has gone wrong flashing display firmware

REQUESTED INFORMATION

Make sure your have performed every step and checked the applicable boxes before submitting your issue. Thank you!

• [x] Provide your apps.yaml (or your config):

  
  apps.yaml here:
  nspanel-1: #Bad
  module: nspanel-lovelace-ui
  class: NsPanelLovelaceUIManager
  config:
  panelRecvTopic: "tele/NSBad/RESULT"
  panelSendTopic: "cmnd/NSBad/CustomSend"
  sleepTimeout: 20
  sleepBrightness:
    - time: "5:30:00"
      value: 0
    - time: "21:30:00"
      value: 0
  sleepOverride:
    entity: switch.on_off_plug_in_unit_11
    brightness: 50
  locale: "de_DE"
  screensaver:
    entity: weather.home
    theme:
      autoWeather: true
    alternativeLayout: true
    doubleTapToUnlock: true
    weatherUnit: celsius
  
  cards:
    - type: cardThermo
      title: Temperatur Bad
      entity: climate.bad
  
    - type: cardEntities
      title: Wohnung 1/2
      entities:
        - entity: navigate.cardGrid_Bad
        - entity: navigate.cardGrid_Kueche
        - entity: navigate.cardGrid_Wohnzimmer
        - entity: navigate.cardGrid_Buero
  
    - type: cardEntities
      title: Wohnung 2/2
      entities:
        - entity: navigate.cardGrid_Schlafzimmer
        - entity: navigate.cardGrid_Waschraum
        - entity: navigate.cardGrid_Abstellkammer
        - entity: navigate.cardGrid_Keller
  
    - type: cardMedia
      entity: media_player.spotify_alex
      title: Spotify
  
  hiddenCards:
    - type: cardGrid
      title: Kueche
      entities:
        - entity: light.color_temperature_light_17
          name: Licht Küche
        - entity: switch.espressomaschine
          name: Kaffeemaschine
          icon: mdi:coffee
        - entity: cover.rollokueche_cover_1
          name: Küche
          icon: mdi:window-shutter
      key: Kueche
  
    - type: cardGrid
      title: Wohnzimmer
      entities:
        - entity: cover.rollobalkonfenster_cover_1
          name: Balkonfenster
        - entity: cover.rollobalkontuer_cover_1
          name: Balkontür
        - entity: cover.rollowohnzimmer_cover_1
          name: Wohnzimmer
        - entity: light.color_temperature_light_16
          name: Couch
          icon: mdi:floor-lamp
      key: Wohnzimmer
  
    - type: cardGrid
      title: Büro
      entities:
        - entity: cover.rollobuero_cover_1
          name: Büro
      key: Buero
  
    - type: cardGrid
      title: Schlafzimmer
      entities:
        - entity: cover.rollo_schlafzimmer_klein_cover_1
          name: Rollo klein
        - entity: cover.rollo_schlafzimmer_gros_cover_1
          name: Rollo groß
      key: Schlafzimmer
  
    - type: cardGrid
      title: Bad
      entities:
        - entity: switch.on_off_plug_in_unit_11
          name: Licht Spiegel
          icon: mdi:mirror-rectangle
        - entity: switch.on_off_plug_in_unit_12
          name: Heizung Spiegel
          icon: mdi:heat-wave
        - entity: switch.lufter_bad
          name: Lüfter Bad
          icon: mdi:fan
        - entity: sensor.temperature_4
          name: Temperatur
        - entity: sensor.multisensor_bad
          name: Luftfeuchtigkeit
        - entity: cover.rollobad_cover_1
          name: Rollo
      key: Bad
  
    - type: cardGrid
      title: Waschraum
      entities:
        - entity: switch.on_off_light_1
          name: Licht
          icon: mdi:lightbulb
        - entity: switch.licht_lufter_waschraum
          name: Lüfter
          icon: mdi:fan
        - entity: sensor.temperature_2
          name: Temperatur
        - entity: sensor.multisensor_waschraum
          name: Luftfeuchtigkeit
      key: Waschraum
  
    - type: cardGrid
      title: Abstellkammer
      entities:
        - entity: sensor.temperature_15
          name: Temperatur
        - entity: sensor.multisensor_abstellkammer
          name: Luftfeuchtigkeit
  
      key: Abstellkammer
  
    - type: cardGrid
      title: Keller
      entities:
        - entity: light.licht_licht_keller
          name: Licht
          icon: mdi:lightbulb
        - entity: switch.steckdose_keller_1
          name: Steckdose -1-
          icon: mdi:water-remove-outline
        - entity: switch.steckdose_keller_2
          name: Steckdose -2-
          icon: mdi:power-socket-de
        - entity: sensor.multisensor_keller
          name: Temperatur
        - entity: sensor.multisensor_keller_2
          name: Luftfeuchtigkeit
  
      key: Keller

- [x] Go to Settings>Add-ons>AppDaemon>Log (or the output of your TS script) and then, provide the output of the log during your issue/bug occurs:

Log output here: 2023-01-08 19:36:02.604475 INFO nspanel-1: Received Message from Screen: event,startup,48,eu 2023-01-08 19:36:02.615994 INFO nspanel-1: Sending MQTT Message: X 2023-01-08 19:36:02.623940 INFO nspanel-1: Update Pre-Check failed Tasmota Driver Version: None Panel Version: 48 2023-01-08 19:36:02.626738 INFO nspanel-5: Startup Event 2023-01-08 19:36:02.655266 INFO nspanel-1: Sending MQTT Message: time~19:36~ 2023-01-08 19:36:02.691224 INFO nspanel-1: Sending MQTT Message: date~Sonntag, 8. Januar 2023 2023-01-08 19:36:02.697793 INFO nspanel-1: Sending MQTT Message: timeout~20 2023-01-08 19:36:02.708142 INFO nspanel-1: Sending MQTT Message: dimmode~0~100~6371 2023-01-08 19:36:02.715879 INFO nspanel-5: Started rendering of page None with type screensaver 2023-01-08 19:36:02.720584 INFO nspanel-1: Sending MQTT Message: pageType~screensaver 2023-01-08 19:36:02.762392 INFO nspanel-1: Sending MQTT Message: weatherUpdate~���~2.9��C~Mo.~���~6.5��C~Di.~���~5.0��C~Mi.~���~10.0��C~Do.~���~4.3��C~���~91 % 2023-01-08 19:36:02.770359 INFO nspanel-1: Sending MQTT Message: color~0~65535~65535~65535~31728~65535~65535~65535~65535~65535~31728~35957~33759~33759~65535~65535~65535~65535~65535~65535~65535~65535 2023-01-08 19:36:02.798355 INFO nspanel-1: MQTT callback for: {'topic': 'tele/NSBad/RESULT', 'wildcard': None, 'payload': '{"nlui_driver_version":"8"}'} 2023-01-08 19:36:02.800290 INFO nspanel-1: Update Pre-Check sucessful Tasmota Driver Version: 8 Panel Version: 48 2023-01-08 19:36:08.786377 INFO nspanel-1: MQTT callback for: {'topic': 'tele/NSBad/RESULT', 'wildcard': None, 'payload': '{"CustomRecv":"event,startup,48,eu"}'} 2023-01-08 19:36:08.791841 INFO nspanel-1: Received Message from Screen: event,startup,48,eu 2023-01-08 19:36:08.795642 INFO nspanel-1: Sending MQTT Message: X 2023-01-08 19:36:08.807752 INFO nspanel-1: Update Pre-Check failed Tasmota Driver Version: None Panel Version: 48 2023-01-08 19:36:08.815047 INFO nspanel-5: Startup Event 2023-01-08 19:36:08.853416 INFO nspanel-1: Sending MQTT Message: time~19:36~ 2023-01-08 19:36:08.883093 INFO nspanel-1: Sending MQTT Message: date~Sonntag, 8. Januar 2023 2023-01-08 19:36:08.889878 INFO nspanel-1: Sending MQTT Message: timeout~20 2023-01-08 19:36:08.900953 INFO nspanel-1: Sending MQTT Message: dimmode~0~100~6371 2023-01-08 19:36:08.907888 INFO nspanel-5: Started rendering of page None with type screensaver 2023-01-08 19:36:08.911452 INFO nspanel-1: Sending MQTT Message: pageType~screensaver 2023-01-08 19:36:08.958389 INFO nspanel-1: Sending MQTT Message: weatherUpdate~���~2.9��C~Mo.~���~6.5��C~Di.~���~5.0��C~Mi.~���~10.0��C~Do.~���~4.3��C~���~91 % 2023-01-08 19:36:08.967329 INFO nspanel-1: Sending MQTT Message: color~0~65535~65535~65535~31728~65535~65535~65535~65535~65535~31728~35957~33759~33759~65535~65535~65535~65535~65535~65535~65535~65535 2023-01-08 19:36:09.001054 INFO nspanel-1: MQTT callback for: {'topic': 'tele/NSBad/RESULT', 'wildcard': None, 'payload': '{"nlui_driver_version":"8"}'} 2023-01-08 19:36:09.003812 INFO nspanel-1: Update Pre-Check sucessful Tasmota Driver Version: 8 Panel Version: 48 2023-01-08 19:36:14.891425 INFO nspanel-1: MQTT callback for: {'topic': 'tele/NSBad/RESULT', 'wildcard': None, 'payload': '{"CustomRecv":"event,startup,48,eu"}'} 2023-01-08 19:36:14.900397 INFO nspanel-1: Received Message from Screen: event,startup,48,eu 2023-01-08 19:36:14.911897 INFO nspanel-1: Sending MQTT Message: X 2023-01-08 19:36:14.925068 INFO nspanel-1: Update Pre-Check failed Tasmota Driver Version: None Panel Version: 48 2023-01-08 19:36:14.928333 INFO nspanel-5: Startup Event 2023-01-08 19:36:14.956751 INFO nspanel-1: Sending MQTT Message: time~19:36~ 2023-01-08 19:36:14.987247 INFO nspanel-1: Sending MQTT Message: date~Sonntag, 8. Januar 2023 2023-01-08 19:36:14.994970 INFO nspanel-1: Sending MQTT Message: timeout~20 2023-01-08 19:36:15.008960 INFO nspanel-1: Sending MQTT Message: dimmode~0~100~6371 2023-01-08 19:36:15.016391 INFO nspanel-5: Started rendering of page None with type screensaver 2023-01-08 19:36:15.024070 INFO nspanel-1: Sending MQTT Message: pageType~screensaver 2023-01-08 19:36:15.086400 INFO nspanel-1: Sending MQTT Message: weatherUpdate~���~2.9��C~Mo.~���~6.5��C~Di.~���~5.0��C~Mi.~���~10.0��C~Do.~���~4.3��C~���~91 % 2023-01-08 19:36:15.093913 INFO nspanel-1: Sending MQTT Message: color~0~65535~65535~65535~31728~65535~65535~65535~65535~65535~31728~35957~33759~33759~65535~65535~65535~65535~65535~65535~65535~65535 2023-01-08 19:36:15.124640 INFO nspanel-1: MQTT callback for: {'topic': 'tele/NSBad/RESULT', 'wildcard': None, 'payload': '{"nlui_driver_version":"8"}'} 2023-01-08 19:36:15.127379 INFO nspanel-1: Update Pre-Check sucessful Tasmota Driver Version: 8 Panel Version: 48 2023-01-08 19:36:20.578592 INFO nspanel-1: MQTT callback for: {'topic': 'tele/NSBad/RESULT', 'wildcard': None, 'payload': '{"CustomRecv":"event,startup,48,eu"}'} 2023-01-08 19:36:20.585878 INFO nspanel-1: Received Message from Screen: event,startup,48,eu 2023-01-08 19:36:20.600861 INFO nspanel-1: Sending MQTT Message: X 2023-01-08 19:36:20.614021 INFO nspanel-1: Update Pre-Check failed Tasmota Driver Version: None Panel Version: 48 2023-01-08 19:36:20.625810 INFO nspanel-5: Startup Event 2023-01-08 19:36:20.651763 INFO nspanel-1: Sending MQTT Message: time~19:36~ 2023-01-08 19:36:20.687924 INFO nspanel-1: Sending MQTT Message: date~Sonntag, 8. Januar 2023 2023-01-08 19:36:20.696223 INFO nspanel-1: Sending MQTT Message: timeout~20 2023-01-08 19:36:20.704986 INFO nspanel-1: Sending MQTT Message: dimmode~0~100~6371 2023-01-08 19:36:20.710842 INFO nspanel-5: Started rendering of page None with type screensaver 2023-01-08 19:36:20.713686 INFO nspanel-1: Sending MQTT Message: pageType~screensaver 2023-01-08 19:36:20.753702 INFO nspanel-1: Sending MQTT Message: weatherUpdate~���~2.9��C~Mo.~���~6.5��C~Di.~���~5.0��C~Mi.~���~10.0��C~Do.~���~4.3��C~���~91 % 2023-01-08 19:36:20.761671 INFO nspanel-1: Sending MQTT Message: color~0~65535~65535~65535~31728~65535~65535~65535~65535~65535~31728~35957~33759~33759~65535~65535~65535~65535~65535~65535~65535~65535 2023-01-08 19:36:20.791410 INFO nspanel-1: MQTT callback for: {'topic': 'tele/NSBad/RESULT', 'wildcard': None, 'payload': '{"nlui_driver_version":"8"}'} 2023-01-08 19:36:20.794351 INFO nspanel-1: Update Pre-Check sucessful Tasmota Driver Version: 8 Panel Version: 48 2023-01-08 19:36:26.597212 INFO nspanel-1: MQTT callback for: {'topic': 'tele/NSBad/RESULT', 'wildcard': None, 'payload': '{"CustomRecv":"event,startup,48,eu"}'} 2023-01-08 19:36:26.600807 INFO nspanel-1: Received Message from Screen: event,startup,48,eu 2023-01-08 19:36:26.602766 INFO nspanel-1: Sending MQTT Message: X 2023-01-08 19:36:26.609305 INFO nspanel-1: Update Pre-Check failed Tasmota Driver Version: None Panel Version: 48 2023-01-08 19:36:26.611846 INFO nspanel-5: Startup Event 2023-01-08 19:36:26.638969 INFO nspanel-1: Sending MQTT Message: time~19:36~ 2023-01-08 19:36:26.667188 INFO nspanel-1: Sending MQTT Message: date~Sonntag, 8. Januar 2023 2023-01-08 19:36:26.675979 INFO nspanel-1: Sending MQTT Message: timeout~20 2023-01-08 19:36:26.686050 INFO nspanel-1: Sending MQTT Message: dimmode~0~100~6371 2023-01-08 19:36:26.694034 INFO nspanel-5: Started rendering of page None with type screensaver 2023-01-08 19:36:26.697871 INFO nspanel-1: Sending MQTT Message: pageType~screensaver 2023-01-08 19:36:26.737913 INFO nspanel-1: Sending MQTT Message: weatherUpdate~���~2.9��C~Mo.~���~6.5��C~Di.~���~5.0��C~Mi.~���~10.0��C~Do.~���~4.3��C~���~91 % 2023-01-08 19:36:26.746413 INFO nspanel-1: Sending MQTT Message: color~0~65535~65535~65535~31728~65535~65535~65535~65535~65535~31728~35957~33759~33759~65535~65535~65535~65535~65535~65535~65535~65535 2023-01-08 19:36:27.449887 INFO nspanel-1: MQTT callback for: {'topic': 'tele/NSBad/RESULT', 'wildcard': None, 'payload': '{"nlui_driver_version":"8"}'} 2023-01-08 19:36:27.452961 INFO nspanel-1: Update Pre-Check sucessful Tasmota Driver Version: 8 Panel Version: 48

### TO REPRODUCE
_Steps to reproduce the behavior:_

### EXPECTED BEHAVIOUR
_A clear and concise description of what you expected to happen._
Flash Nextion Screen, Use the Panel as before.

### SCREENSHOTS
_If applicable, add screenshots/pictures to help explain your problem._

### ADDITIONAL CONTEXT
_Add any other context about the problem here._
_Please note here in case you are using ioBroker_
Homeassistant. I tried to flash my nextion with another Firmware and bricked it. So I just tried to reflash it using your .HMI and Nextion Editor. In your actual HMI File Nextion found 2 issues in the QR Code Card and refuses to flash the Display. So I used your HMI file to flash my Nextion Screen (and uncommented the 2 Lines in QR Code Page). 
After that I tried to reflash it via Tasmota Console using your Setup procedure. But the Flash of the Screen fails at any time. I've tried 3 historic Versions of the HMI file/the .tft file, but always I got the error Message:

19:45:17.518 FLH: Something has gone wrong flashing display firmware [bytes('55BB13006576656E742C737461727475702C34382C6575686C')]

No Changes to apps.yaml or other things done. Panel worked before my flash of Nextion Screen.
### PANEL / FIRMWARE VERION
_Please add the Panel/Firmware Version you are using (EU, US-L or US-P)_
EU, Tasmota 12.2.0

[Kleinheribert]

Issue can be closed: I've flashed the Nextion Screen directly via the Solder Pins after I bricked the Nextion Firmware. And now I tried flashing via Tasmota/ESP32 and left the two pins attached to my TTL converter. Disconnected and now the flash via Tasmota is working...shame on me :( This took me 3 hours of my lovely life....