devo 10 update

hi, have a devo 10 I updated to v4.0.1. no thing works as I want and therefore wonders if there is a possibility that I can downgrade, do not remember the original version was, think it was v0.8, but it has never been updated bow now, can anyone help me with this

hey, thanks for the information. Do you think you could help me a little bit more detail

hello, thank you very much, I downloaded the v0.4 but the menus and the image when you turn off was wrong. Home screen and startup screen was there to completely normal and my models was restored. zip file, I could not download

hey found the 0.8 version here. walkera-fans.de/downloads/ and downloaded it and my devo 10 is now fully restored as it was with those models and settings that I had, but you should use the A or B version

This is from the .txt file within the zip:
DEVO-10 Fw v0.8A.dfu, 100mW Sendeleistung, USA Version
DEVO-10 Fw v0.8B.dfu, 10mW Sendeleistung, EU Version

The difference is the max signal output. If you have legal restrictions in your country, use version B otherwise version A.

I can get longer control range if I use the (B version)

Ver 0.8A came with my DEVO 10 from Gearbest so looks like they are shipping out with the "latest" version so no need to update the stock firmware... but when I went to Walkera's website to see what the latest version is the DEVO 10 and 7E was not even listed as a past product. What's up with that? Did Walkera stop making the DEVO 10 and 7E?

one may wonder if Walkera's website, they had really a lot of files and information about devo. installed the first version A on my devo 10 then I could just set up to +10 dBm of Power Amplifier, tested late version B and can now set +20 dBm, which I had from the beginning, but if I use higher dBm strength, I can then get longer control range?

+10 dBm = 10 mW
+20 dBm = 100 mW

You may be mixed-up about the different versions:
v0.8A is the 100 mW version (+20 dBm)
v0.8B is the 10 mW version (+10 dBm)

So, yes, much farther range when using v0.8A firmware. But, be aware that you could possibly get into some trouble if you are caught using it in a countries that limit transmitter output power to 10 mW.

do not know where the rules are here in Sweden, has used a Devo 7 transmitter in 1-1.5 years, believe that I then have been running at full power and no one has said anything

You are good-to-go with 100mW on your DEVO in Sweden, as per www.fai.org/ciam-our-sport/frequencies .

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Sweden:
....snip....
2,4 GHz Band
2,4000 – 2,4835 GHz
Max 100 mWeirp if spread spectrum technology is used, otherwise 10 mW/MHz eirp.
....snip....
*********

Thanks for the information, i did not know there were rules about this