FNIRSI Firmware Upgrade, Review & Instructions

Опубликовано: 23 Апрель 2026
на канале: Project 326
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This is a 3rd party firmware upgrade for the FNIRSI GC-01 Geiger counter from Gissio. This makes the GC-01 counter a lot more useful. Please watch this video all the way through before undertaking this upgrade.

Also watch my review of this counter as well, there is a description of how I performed a hardware upgrade (the the GM tube) on the product.
   • FNIRSI GC-01 [IMPORTANT PRODUCT UPDATE]  ☢️  

All firmware upgrades are at your own risk!
Here are the download links:

FNIRSI Firmware (get V1.5):

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https://github.com/Gissio/radpro/tree...
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RadPro 2.0beta23 (click the arrow where is says ASSETS, then choose the version with this tag
"radpro-fnirsi-gc01-ch32f103r8-2.0beta23-install.bin" , it should be 48 Kb in size:

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https://github.com/Gissio/radpro/rele...
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00:00 Introduction
00:51 Installing it
02:40 Intermission
04:42 The good, the bad and the ugly
08:00 Close-out