# Touch screen 'custom' flash upgrade trouble

**URL:** <https://forum.sovol3d.com/t/touch-screen-custom-flash-upgrade-trouble/2865>\
**Category:** Sovol SV04 IDEX\
**Tags:** firmware\
**Created:** [June 15, 2023, 10:08pm UTC](https://forum.sovol3d.com/t/touch-screen-custom-flash-upgrade-trouble/2865 "2023-06-15T22:08:36Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Bjoern](https://avatars.discourse-cdn.com/v4/letter/b/46a35a/32.png) [@Bjoern](https://forum.sovol3d.com/u/Bjoern)\
**Post date:** [June 16, 2023, 5:38am UTC](https://forum.sovol3d.com/t/touch-screen-custom-flash-upgrade-trouble/2865/2 "2023-06-16T05:38:12Z")

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Hi zebul73,  
assuming that you tried flashing your display via the MicroSD port of your dismantled display unit you may want to ensure that your MicroSD card:

- is formatted FAT32 (max. 4 GByte / 512 Byte sector size)
- contains the extracted “DWIN\_SET” folder in the root directory
- has all 14 files in the “DWIN\_SET” folder:  
 ![DWIN_SET](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/8/8fc4a21ebbfcd60a46c0379d795909e2f26f5685.jpeg)

If that does not work on your DWIN display, I suggest trying it the same way using an other MicroSD card.

Good luck  
Björn

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