WiFi Lora 32 Touch Screen v4 dont update flashweb

#1

Hello Folks! I just bought 2 v4 to flash meshtastic… the first is just normal version i could flash perfectly, but i bought one of them Wifi LORA 32 with touch screen and I cant flash it from flasher.meshtastic… very strange when i can do it with other board… any clue?

tahnks

#2

Hi,

  1. simple but happens: 2nd board = new COM no.
  2. download the update as file and then make the choice from you comupter iso online.
  3. with the V4 Expansion version I had to choose the “.tft.” update version.
    It helped me but perhaps does not meet your problem. Anyway, give it a try!
    Good luck
    Helge
1 Like
#3

step 1. Visit web flash tools = https://esptool.spacehuhn.com/
step 2. Download firmware with keywords tft and factory . example = firmware-heltec-v4-tft-2.7.17.a5f975abe.factory.bin

enjoy

1 Like
#4

Hi, I am having a similar issue.
I used the esp tool to flash but the screen will not display.
The version online is 2.7.15. Where to find .17?
It came with 2.7.16 and that works. Can I get a link to that version and compare?

#5

https://resource.heltec.cn/download/WiFi_LoRa_32_V4/firmware/Touch

alternatively you may check the nightly build from meshtastic

https://nightly.link/meshtastic/firmware/workflows/main_matrix/master

#6

Funny, I have been looking at those two pages daily waiting.
There is no TFT version on the nightlys yet.

#7

I see there is a bug in the github saying TFT builds for V4 are not working yet. I’ll have to wait.
Maybe when I did the ‘erase’ from the web flasher I removed something important?

#8

the tft version for V4 is now on nightly builds. I’ll try that
https://nightly.link/meshtastic/firmware/workflows/main_matrix/master/firmware-esp32s3-heltec-v4-tft-2.7.19.e9d4485

EDIT
It did not work for me. The screen still did not work with this new nightly build.

#9

This worked great first time. Heltec and other tools failed every time. I thought I had bricked my V4 Touch.

Smiles

#10

Actually it works, if you still have the file, look for the xxxtftxxxxfactory.bin

#11

When you use the linked flashing web site, what number did you put in the 0x box?

#12

I found the good video
https://www.youtube.com/watch?v=NNXZOnf5NNk

The TFT is in the esp32-S3 release on the meshtastic github! included on 2.7.14 and above.

The problem with my unit is it starts a reboot loop when I install the firmware. I can tell because the device is detected over and over in the device manager and I hear the tone of device connect.
This is without a battery.

EDIT: I did get the flash to work and it does not bootloop. I can connect with bluetooth so I believe the firmware is good but still no display. the screen is on, from the glow but the UI, old or new, does not display.

EDIT SOLUTION:
The meshcore flash removed the littlefs. To get it working again I first flashed the littlefs file, then the factory file and selected Erase First. Using the meshtastic web flasher worked.

#13

here some guide.

  1. log on https://esptool.spacehuhn.com
  2. connect to usb and put esp32 device to bootloader mode
  3. delete all from the flash file check box
  4. load the v4 TFT firmware
    example = firmware-heltec-v4-tft-2.7.18.fb3bf78.factory.bin
    ** unzip the zip file that you downloaded from nightly build. locate the file v4-tft with factory.bin ! not the normal v4-tft.bin !!
  5. the click flash.
    enjoy

place to download the firmware

  1. [Release Meshtastic Firmware 2.7.18.fb3bf78 Alpha · meshtastic/firmware · GitHub] https:// github. com/ meshtastic/ firmware/releases /tag/v2.7.18.fb3bf78

  2. scroll down, download firmware-esp32s3-2.7.18.fb3bf78.zip

  3. unzip the download file name with heltech-v4-tft-xxxxx.factory.bin
    example picture below

    image
    image.png724×292 17.6 KB

1 Like
#14

To get the screen to work again I had to also flash the littlefs.bin file.