[GH-ISSUE #304] Solum 5.85 ESL #2937

Open
opened 2026-03-20 22:05:55 +01:00 by sascha_hemi · 12 comments
Owner

Originally created by @vaughnlfisher on GitHub (Apr 22, 2024).
Original GitHub issue: https://github.com/OpenEPaperLink/OpenEPaperLink/issues/304

Not sure if this is a bug or feature request?
I have 2 versions and neither can read or write via the OEPL flasher script. I keep getting permission errors!

I can confirm that I have been successful in re flashing m3 2.9.

Attached are pictures of both.

image

image

image

image

Originally created by @vaughnlfisher on GitHub (Apr 22, 2024). Original GitHub issue: https://github.com/OpenEPaperLink/OpenEPaperLink/issues/304 Not sure if this is a bug or feature request? I have 2 versions and neither can read or write via the OEPL flasher script. I keep getting permission errors! I can confirm that I have been successful in re flashing m3 2.9. Attached are pictures of both. ![image](https://github.com/jjwbruijn/OpenEPaperLink/assets/45875201/6b718299-bb3c-47cf-a627-955f2ad417e9) ![image](https://github.com/jjwbruijn/OpenEPaperLink/assets/45875201/c90708ac-22b0-4e61-8154-da68eaa12219) ![image](https://github.com/jjwbruijn/OpenEPaperLink/assets/45875201/7921e1e6-4ea4-498e-b76e-d52122267dc5) ![image](https://github.com/jjwbruijn/OpenEPaperLink/assets/45875201/a8d85331-cf91-4ecc-b40f-e4e9b4ad4fef)
sascha_hemi added the enhancementtag fw labels 2026-03-20 22:05:55 +01:00
Author
Owner

@jjwbruijn commented on GitHub (Apr 22, 2024):

Doubt this is a bug :) what’s the date on the label?

<!-- gh-comment-id:2070376623 --> @jjwbruijn commented on GitHub (Apr 22, 2024): Doubt this is a bug :) what’s the date on the label?
Author
Owner

@vaughnlfisher commented on GitHub (Apr 22, 2024):

Hi

I thought as much 😃 .
Aug 2022 and October 2022.

<!-- gh-comment-id:2070436444 --> @vaughnlfisher commented on GitHub (Apr 22, 2024): Hi I thought as much 😃 . Aug 2022 and October 2022.
Author
Owner

@jjwbruijn commented on GitHub (Apr 23, 2024):

The reason I asked is that tags of a more recent vintage can be locked, October 2022 probably shouldn't be an issue. In any case, a permission error is probably something else, related to your OS. There's no scenario where the flasher script itself would produce an error like that. I'd try re-plugging the flasher a couple of times, see if that helps. Since you've already opened your tags, you could also try and disconnect the EPD before flashing, maybe it's draining a little too much power

<!-- gh-comment-id:2071628407 --> @jjwbruijn commented on GitHub (Apr 23, 2024): The reason I asked is that tags of a more recent vintage can be locked, October 2022 probably shouldn't be an issue. In any case, a permission error is probably something else, related to your OS. There's no scenario where the flasher script itself would produce an error like that. I'd try re-plugging the flasher a couple of times, see if that helps. Since you've already opened your tags, you could also try and disconnect the EPD before flashing, maybe it's draining a little too much power
Author
Owner

@ferrexevi commented on GitHub (May 4, 2024):

WhatsApp Image 2024-05-04 at 11 16 40 PM

It is very similar to this one, this one but it is from 2023, newer does it mean that it is more complicated to write on it? Is it really feasible that something comes out to read and write on these things? What sense does it make that they take the trouble to protect it so much? ?, it would be interesting to be able to play with them in a more open way.

Great job for making this possible, even though you have to wait a while

<!-- gh-comment-id:2094400735 --> @ferrexevi commented on GitHub (May 4, 2024): ![WhatsApp Image 2024-05-04 at 11 16 40 PM](https://github.com/jjwbruijn/OpenEPaperLink/assets/31113439/2e519508-89fc-4352-baf9-f64857037700) It is very similar to this one, this one but it is from 2023, newer does it mean that it is more complicated to write on it? Is it really feasible that something comes out to read and write on these things? What sense does it make that they take the trouble to protect it so much? ?, it would be interesting to be able to play with them in a more open way. Great job for making this possible, even though you have to wait a while
Author
Owner

@vaughnlfisher commented on GitHub (Jun 10, 2024):

Hi again

After a lot of messing around, I uploaded the following bin from another post, m3 4.2 Firmware. https://github.com/jjwbruijn/OpenEPaperLink/files/14625655/varuicrdump-4.2-ssd-experimental.zip
It has worked on a portion of the screen, and its upsdie down. But very positive.
Could you explain why this worked an none of the other FW bins I uploaded. Attached my dump
working_infopage.zip
IMG_2268

<!-- gh-comment-id:2158264892 --> @vaughnlfisher commented on GitHub (Jun 10, 2024): Hi again After a lot of messing around, I uploaded the following bin from another post, m3 4.2 Firmware. https://github.com/jjwbruijn/OpenEPaperLink/files/14625655/varuicrdump-4.2-ssd-experimental.zip It has worked on a portion of the screen, and its upsdie down. But very positive. Could you explain why this worked an none of the other FW bins I uploaded. Attached my dump [working_infopage.zip](https://github.com/user-attachments/files/15766377/working_infopage.zip) ![IMG_2268](https://github.com/OpenEPaperLink/OpenEPaperLink/assets/45875201/9d9f4be8-d3a2-488c-bd19-428aaf8bbeb0)
Author
Owner

@vaughnlfisher commented on GitHub (Jun 16, 2024):

Hi did someone see this?

<!-- gh-comment-id:2171891507 --> @vaughnlfisher commented on GitHub (Jun 16, 2024): Hi did someone see this?
Author
Owner

@Misiu commented on GitHub (Sep 9, 2024):

This looks like LIDL ESL (https://www.reddit.com/r/eink/comments/157iycd/seemingly_affordable_3color_eink_display_seen_at/).
Fingers crossed that these will finally be fully supported :)

<!-- gh-comment-id:2337266460 --> @Misiu commented on GitHub (Sep 9, 2024): This looks like LIDL ESL (https://www.reddit.com/r/eink/comments/157iycd/seemingly_affordable_3color_eink_display_seen_at/). Fingers crossed that these will finally be fully supported :)
Author
Owner

@germil commented on GitHub (Mar 12, 2025):

Hello, is there anything new regarding the programming of these ESLs? I also have a few of them, specifically with the RTL8762ESL processor. How and with which firmware can I reprogram them?

👌😊

<!-- gh-comment-id:2718509390 --> @germil commented on GitHub (Mar 12, 2025): Hello, is there anything new regarding the programming of these ESLs? I also have a few of them, specifically with the RTL8762ESL processor. How and with which firmware can I reprogram them? 👌😊
Author
Owner

@diegozalez commented on GitHub (Aug 24, 2025):

I'm in the same situation if anyone finds a way it will be awesome, or at least a way to connect the display to a esp

<!-- gh-comment-id:3217514444 --> @diegozalez commented on GitHub (Aug 24, 2025): I'm in the same situation if anyone finds a way it will be awesome, or at least a way to connect the display to a esp
Author
Owner

@rootik commented on GitHub (Jan 28, 2026):

RTL8762ESL based Solum tag is eFuse security locked.
SWD is disabled. You can build and upload a firmware through UART port (I did with SDK and Keil/GCC) but it won't run anything not signed with proprietary key.
It seems Waveshare ESP32 e-paper board is the only option to use the e-ink display at least.

<!-- gh-comment-id:3814253325 --> @rootik commented on GitHub (Jan 28, 2026): RTL8762ESL based Solum tag is eFuse security locked. SWD is disabled. You can build and upload a firmware through UART port (I did with SDK and Keil/GCC) but it won't run anything not signed with proprietary key. It seems Waveshare ESP32 e-paper board is the only option to use the e-ink display at least.
Author
Owner

@jonasniesner commented on GitHub (Jan 29, 2026):

Well, I hoped this would not happen but it was kinda inevitable. The waveshare board is not the only option though. Seeed also makes some great driver boards like the EN04 and EE04 and we could try to add the screen to the OpenDisplay Firmware.

<!-- gh-comment-id:3815665545 --> @jonasniesner commented on GitHub (Jan 29, 2026): Well, I hoped this would not happen but it was kinda inevitable. The waveshare board is not the only option though. Seeed also makes some great driver boards like the EN04 and EE04 and we could try to add the screen to the OpenDisplay Firmware.
Author
Owner

@diegozalez commented on GitHub (Feb 2, 2026):

RTL8762ESL based Solum tag is eFuse security locked. SWD is disabled. You can build and upload a firmware through UART port (I did with SDK and Keil/GCC) but it won't run anything not signed with proprietary key. It seems Waveshare ESP32 e-paper board is the only option to use the e-ink display at least.

Do you know if it is pin compatible? is there any guide that covers this?

Thanks for the research!!

<!-- gh-comment-id:3833825008 --> @diegozalez commented on GitHub (Feb 2, 2026): > RTL8762ESL based Solum tag is eFuse security locked. SWD is disabled. You can build and upload a firmware through UART port (I did with SDK and Keil/GCC) but it won't run anything not signed with proprietary key. It seems Waveshare ESP32 e-paper board is the only option to use the e-ink display at least. Do you know if it is pin compatible? is there any guide that covers this? Thanks for the research!!
Sign in to join this conversation.
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: starred/OpenEPaperLink#2937