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Lilygo TTGO T8 ESP32-S2 ST7789 How to boot in bootloader UF2
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Please be positive and constructive with your questions and comments.

Lilygo TTGO T8 ESP32-S2 ST7789 How to boot in bootloader UF2

by jumpzero on Mon Sep 20, 2021 11:40 am

Hello,

I have this Lilygo TTGO T8 ESP32-S2 ST7789 flashed with CircuitPython 7.0.0-rc.1 and cannot reset in bootloader mode.
I first flashed it with CircuitPython 6.3.0 stable (according the first flash method on this page https://circuitpython.org/board/lilygo_ ... s2_st7789/)
and had no success to reset in bootloader mode either by:
- pressing twice the reboot button
or
- running this command:
Code: Select all | TOGGLE FULL SIZE
  import microcontroller
  microcontroller.on_next_reset(microcontroller.RunMode.BOOTLOADER)
  microcontroller.reset()

Then I noticed this web page (mentioned above) has been updated with a procedure to:
Install, Repair, or Update UF2 Bootloader
I followed it, everything went fine. BTW congrats and thanks for the Adafruit Webserial Esptool: awesome!
At the end a boot drive appeared and I copied CircuitPython 7.0.0-rc.1 on it.
CircuitPython runs fine but I’m still not able to go to bootloader mode either by:
- pressing twice the reboot button
or
- running this command:
Code: Select all | TOGGLE FULL SIZE
  import microcontroller
  microcontroller.on_next_reset(microcontroller.RunMode.BOOTLOADER)
  microcontroller.reset()
At the end of this command the ESP just hangs and must be reset.

Do I have to manipulate the dip switch or anything else?
Thanks
--
Jmp0

jumpzero
 
Posts: 43
Joined: Thu Feb 21, 2013 8:32 pm

Re: Lilygo TTGO T8 ESP32-S2 ST7789 How to boot in bootloader

by franklin97355 on Mon Sep 20, 2021 11:56 am

Feel free to ask but we only support the products we make and we have little experience with this board. Maybe some user has a board and can give you help.

franklin97355
 
Posts: 22251
Joined: Mon Apr 21, 2008 2:33 pm
Location: Lacomb, OR.

Re: Lilygo TTGO T8 ESP32-S2 ST7789 How to boot in bootloader

by jumpzero on Wed Sep 22, 2021 12:58 pm

@franklin97355 thank you for your answer. Yes I understand that's fair enough.
I also use Adafruit genuine products and appreciate the support and understand that I cannot expect the same from Lilygo.
Unfortunately there is absolutely no support no doc with Lilygo...
But maybe some day somebody will see this post and...
maybe yes maybe no
:-)
Have a nice day everybody

jumpzero
 
Posts: 43
Joined: Thu Feb 21, 2013 8:32 pm

Please be positive and constructive with your questions and comments.