New reTerminal, powers up with blank screen

Hello @ScottCLT,

Do you mean when you use the seeed-python-reterminal library?

Did you first test with “evtest” tool?

Also, please attach the output of “i2cdetect -y 1”. It will help me to check the issue further.

Best Regards,
Lakshantha

Thanks for the reply. Yes, I am trying to use the seeed-python-reterminal library.

I was unfamiliar with evtest, but I installed it and this is the output:

No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0:	Riitek Micro Keyboard Mouse
/dev/input/event1:	Riitek Micro Keyboard
/dev/input/event2:	seeed-tp
/dev/input/event3:	Riitek Micro Keyboard Consumer Control
/dev/input/event4:	vc4
/dev/input/event5:	ST LIS3LV02DL Accelerometer
/dev/input/event6:	vc4
Select the device event number [0-6]:

I did not see the device to test, so I did not proceed.

I also ran i2cdetect -y 1. Here is the output of that:

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- 38 -- -- -- -- -- -- -- 
40: -- -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --                         

Sorry, I have no idea what I’m looking at in those results! :slight_smile:

Hello @ScottCLT,

Let me make it clear for you about the debugging.

From the i2cdetect command, we can check whether the drivers for the inbuilt hardware has been properly loaded:

i2cdetect -y 1

  • 0x19 - accelerometer
  • 0x29 - light sensor
  • 0x38 - IO-extender - buzzer, LEDs and buttons
  • 0x45 - LCD

i2cdetect -y 3

  • 0x51 - RTC
  • 0x60 - Encryption processor

However, if the drivers are loaded, you should see UU instead of the I2C address.

But in your output above, 0x38 is not loaded which means the drivers for buzzer, LEDs and buttons are not loaded. This is quite unusual.

Could you please reflash with the below image and try again?

Try the 32-bit at first.

Best Regards,
Lakshantha

1 Like

I bought one in November 2021 and it still has this problem.
Unfortunately the wiki instructions don’t work for me due to rpiboot issue: https://forums.raspberrypi.com/viewtopic.php?t=273995

Not sure where to go from here. Love the design. When can I safely buy one that works?

Hello @Paulware,

Can I know which operating system are you using on your computing to run the rpiboot tool?

Came here to say I’ve had the same experience:
Was working fine (didn’t let it do the updates during setup), I had setup SSH keys, connected to WiFi etc.
Decided to do the old “apt update && apt upgrade”, next time I rebooted (which was a while later so I didn’t realized that was the cause at first) the screen stayed blank and the SYS light stayed on.

Using the instructions linked above fixed the issue but I don’t expect to have to reinstall the display drivers every time I do an update. Definitely a disappointing user experience.

Hello @ollytheninja,

If you have flashed the 2021-09-14-Raspbian(modified) RPi OS, you don’t have to reinstall the display drivers after future updates. We have fixed it.

Why am I having this problem with the WIO Terminal (3 units no usable screen in the Arduino IDE but usable screen with circuit python). Is there a fix for this? I don’t want to convert my programs from C to CP.

See my earlier posts.
tomfitzphilly

Hello @tomfitzphilly,

This thread is about reTerminal. Please ask your question in a new thread,

Thank you.

It all works now, I just needed to run rpiboot then rpiImager.
I did need to load the seeedstudio .img https://files.seeedstudio.com/wiki/ReTerminal/RPiOS_Images/2021-06-02-Raspbian-reTerminal/image_2021-06-02-Raspbian-reTerminal.zip, and avoid any official update.

Does seeedstudio have a more recent .img available after 2021-06-02?

Hello @Paulware,

Please use our latest images (2021-09-14):

https://wiki.seeedstudio.com/reTerminal-FAQ/#q2-how-can-i-flash-raspberry-pi-os-which-is-originally-shipped-with-reterminal

Best Regards,
Lakshantha