CrowPanel Advance 5 HMI ESP32 S3 Screen Tearing during OTA / WIFI

HorsepantsHorsepants
in Elecrow HMI Display

Hi,
I've got the advance 5 panel and I'm using the v1.0 "4.3_5.0_7.0_platfromIO" example
I've made no other changes except added ElegantOTA, and when I upload a new binary I get crazy horizontal screen distortions and tearing. The forum won't let me post a photo or I would

In a previous project I've tried all sorts of recommendations, changing timings, power, ram types, nothing has made any difference,

Does anyone have any ideas?

Thanks in advance

Tagged:

Comments

  • JennieJennie

    Dear Customer/Sender,

    Thank you for reaching out to us and for your continued support.

    We have received your messages, and our technical support team is reviewing the details. Please allow us some time to look into the matter. We will get back to you as soon as possible with an update.

    In the meantime, pls check if you have provided the following information. if not, pls send to us, so that we can fix your problems faster.

    pl tell us exactly which of our products you are using. We need to know the SKU No. . Or Please provide the purchase link for the product. so that we can continue to analyze the issue

    Also, please provide the order number, product purchase link(if applicable), along with the name of the retailer, store, platform, or website where you purchased the product?
    This allows us to work with the seller to provide you with better service.

    We apologize for any inconvenience this may cause and appreciate your patience and understanding.

    Best regards,

  • HorsepantsHorsepants
    edited November 2025

    Hi Jennie

    The Sku is DIS02050A-1
    The order number was from you guys: 251698
    The website won't let me post links or images, it always throws a 500, but this is part of the url on your site
    /crowpanel-advance-5-0-hmi-esp32-ai-display-800x480-ips-artificial-intelligent-touch-screen.html

    Thanks

  • JennieJennie

    Dear Horsepants,
    During WiFi OTA (Over-The-Air) updates, WiFi may: consume significant CPU resources, consume PSRAM bandwidth, enter a prolonged critical section, disable some interrupts (including those required for I80/RGB refresh), block LVGL's disp_flush, and cause DMA inter-frame refresh latency, resulting in screen tearing, horizontal distortion, jitter, and screen glitches.

    Recommended solution: Pause LVGL refresh during OTA updates.
    Thanks!
    Warm regards,

  • HorsepantsHorsepants

    Hi Jennie,
    Unfortunately, I've already tried that, it made no difference. I'm beginning to wonder if the screen is faulty, it's not just a little distortion it's quite extreme, and it seems to do it on wifi in general, even when not doing OTA, just basic wifi operations. I can't embed a photo for some reason, but I've attached one

    Cheers

  • HorsepantsHorsepants

    Hi Jennie,
    Any updates? Is this just expected behaviour that any wifi will distort the screen?

    Cheers

  • JennieJennie

    Dear Customer/Sender,

    Thank you for reaching out to us and for your continued support.

    We have received your messages, and our technical support team is reviewing the details. Please allow us some time to look into the matter. We will get back to you as soon as possible with an update.

    In the meantime, pls check if you have provided the following information. if not, pls send to us, so that we can fix your problems faster.

    pl tell us exactly which of our products you are using. We need to know the SKU No. . Or Please provide the purchase link for the product. so that we can continue to analyze the issue

    Also, please provide the order number, product purchase link(if applicable), along with the name of the retailer, store, platform, or website where you purchased the product?
    This allows us to work with the seller to provide you with better service.

    We apologize for any inconvenience this may cause and appreciate your patience and understanding.

    Best regards,

  • HorsepantsHorsepants

    @Horsepants said:
    Hi Jennie

    The Sku is DIS02050A-1
    The order number was from you guys: 251698
    The website won't let me post links or images, it always throws a 500, but this is part of the url on your site
    /crowpanel-advance-5-0-hmi-esp32-ai-display-800x480-ips-artificial-intelligent-touch-screen.html

    Thanks

    .

  • JennieJennie
    edited December 2025

    @Horsepants said:
    Hi Jennie,
    Unfortunately, I've already tried that, it made no difference. I'm beginning to wonder if the screen is faulty, it's not just a little distortion it's quite extreme, and it seems to do it on wifi in general, even when not doing OTA, just basic wifi operations. I can't embed a photo for some reason, but I've attached one

    Cheers

    Dear Marku,
    Sorry for the late reply .

    Please flash our factory firmware onto your device to check for screen hardware issues.

    https://github.com/Elecrow-RD/CrowPanel-Advance-5-HMI-ESP32-S3-AI-Powered-IPS-Touch-Screen-800x480/tree/master/factory_firmware

    You mentioned that the problem persists even when using only the screen and Wi-Fi. Please send us the program and a video recording. The video should include the complete operation/test process and the problem/fault phenomenon.

    If the video is too large, please upload it to a platform (like Google Drive) and send us the link.
    You may also contact us via email(techsupport3@elecrow.com) if the link cannot be pasted here.
    Thanks!
    Best regards,

Sign In or Register to comment.

© Elecrow Stone 2026