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2026-01-23 FAQ Corner

How to Update SL220 Firmware via PC

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Please click the picture for more details!

 

 

 

Managing firmware updates across multiple SL220 devices in production or service environments?

Updating SL220 via PC provides a more stable, scalable, and traceable approach to support batch deployment scenarios.✨

 

Q: Why update via PC?

✔ Higher stability — wired transmission minimizes risks from wireless interference.

✔ Optimized for batch deployment — ideal for repair centers, production lines, or SIs managing multiple units.

✔ Better maintenance control — IT admins can validate versions, logs, and consistency during operation.

 

Q: How does it work?

✔ Enter firmware update mode directly on SL220

✔ Establish a serial connection via ExtraPuTTY or Tera Term

✔ Send the firmware file via Ymodem and complete the update

 

 

Full step-by-step guide available in our FAQ Corner!
 

Learn more about SL220: https://www.ute.com/en/products/detail/SL220

For more helpful FAQs, visit our FAQ Corner: https://www.ute.com/en/news/articles/46

 

 

Improve Your Device's Management with Unitech Supported Solutions!

 

- iOS Solutions -

 

 

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