Comments on: Actigraph GT3X Review http://www.vividomaha.com/blog/2009/10/25/actigraph-gt3x-review Research, Product Reviews, Free Advice Fri, 16 Dec 2011 17:35:43 +0000 hourly 1 http://wordpress.org/?v=3.1.2 By: Zoran http://www.vividomaha.com/blog/2009/10/25/actigraph-gt3x-review/comment-page-1#comment-4 Zoran Mon, 26 Oct 2009 18:43:04 +0000 http://www.vividomaha.com/blog/?p=23#comment-4 Greetings, Uh, I liked! So clear and positive. Thanks Zoran Greetings, Uh, I liked! So clear and positive.

Thanks
Zoran

]]> By: Judge Maygarden http://www.vividomaha.com/blog/2009/10/25/actigraph-gt3x-review/comment-page-1#comment-3 Judge Maygarden Mon, 26 Oct 2009 17:31:08 +0000 http://www.vividomaha.com/blog/?p=23#comment-3 I am a firmware engineer with ActiGraph, enjoyed the article and appreciate both the positive and negative feedback. Disconnecting the USB cable during a firmware update will NOT brick your GT3X. Firmware field updates can be tricky, but we have put a lot of effort into avoiding such problems. The device is only susceptible to "bricking" for a very short duration after the firmware upload completes, and such an event would require a battery interruption to occur. Also, download speeds are indeed limited by the low-power processor and serial connection. However, GT3X firmware version 2.2.0 and ActiLife software version 4.2.0 contained optimizations that allow increased throughput. This combination should reduce your worst-case download time from 6 minutes to 1 minute for 4 MB. I am a firmware engineer with ActiGraph, enjoyed the article and appreciate both the positive and negative feedback.

Disconnecting the USB cable during a firmware update will NOT brick your GT3X. Firmware field updates can be tricky, but we have put a lot of effort into avoiding such problems. The device is only susceptible to “bricking” for a very short duration after the firmware upload completes, and such an event would require a battery interruption to occur.

Also, download speeds are indeed limited by the low-power processor and serial connection. However, GT3X firmware version 2.2.0 and ActiLife software version 4.2.0 contained optimizations that allow increased throughput. This combination should reduce your worst-case download time from 6 minutes to 1 minute for 4 MB.

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