# Seeed Technology Co., Ltd 109990525 Touchscreen / Double Clicking Issue

**URL:** <https://forum.digikey.com/t/seeed-technology-co-ltd-109990525-touchscreen-double-clicking-issue/69631>\
**Category:** Test and Measurement\
**Tags:** test-equipment, seeed-technology-co-ltd, faqs\
**Created:** [June 10, 2026, 11:31pm UTC](https://forum.digikey.com/t/seeed-technology-co-ltd-109990525-touchscreen-double-clicking-issue/69631 "2026-06-10T23:31:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jeff\_2258](https://avatars.discourse-cdn.com/v4/letter/j/ecb155/32.png) [@Jeff\_2258](https://forum.digikey.com/u/Jeff_2258)\
**Post date:** [June 10, 2026, 11:31pm UTC](https://forum.digikey.com/t/seeed-technology-co-ltd-109990525-touchscreen-double-clicking-issue/69631/1 "2026-06-10T23:31:09Z")

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Touchscreen and double-clicking issues with Seeed 109990525 are known behavior, typically caused by outdated firmware on the device, which affects the touchscreen calibration and sensitivity. Head over to the official firmware page, [Chelegance SV6301A Firmware Updates & Features](https://chelegance.com/archives/sv6301a-firmware-updates-features/), and download the most recent firmware release.

If updating the firmware doesn’t solve the issue, then the display might be damaged.

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[![Image](https://global.discourse-cdn.com/digikey/original/3X/5/1/5175469b65f7062c7caa242e2a196e202ce1ca7f.jpeg)](https://www.digikey.com/en/products/detail/seeed-technology-co-ltd/109990525/21526017)

| MFR PART # | 109990525 |
| --- | --- |
| DIGIKEY PART # | [1597-109990525-ND](https://www.digikey.com/en/products/detail/seeed-technology-co-ltd/109990525/21526017) |
| MANUFACTURER | Seeed Technology Co., Ltd |
| DESCRIPTION | 1MHz ~ 6.3GHz Handheld Vector Network Analyzer (VNA) -40dBm ~ -10dBm USB Port AC Adapter, Battery, Cable, Case, Software |
| DATASHEET | [Click Here](https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/8932/109990525.pdf) |

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