19/12/2016 — The latest Firmware Information is Updated now . And Please download the file on Facebook Offers ( For Free of course ) . You could Like and follow our Facebook Page to Get more Retevis services and special offers . Now let’s see how to download and update the latest Firmware below —
Firmware Update Contents
1.Add side key to transmit 1750.
2.Fix machine crashes of some new radio LCD screens more stably .
Firmware Update preparations
1.Know your vocoder versions . And that’s why your radio kept repetitive starting when you choose the unmatched version .See how to check about it below :
Open your radio ,Click “Utilities”–”Radio Infor”–”Versions”. Then it will show the vocoder version Infor of this radio . And just take a RT3 as an example :
2. After you download the Firmware on Facebook , please read the note before updating firstly , It will help you choose the suited vocoder versions .
Still take this RT3 as an example ,see attached pictures below:
1.Open the Firmware file ,click the red part “Upgrade”.
2.Then it will show a box
3.Connect your radio to the computer via programming cable . And hold PTT and the key which is upon the PTT together ,meanwhile open the radio power , the light near the knob will light up with green and red , then you can leave your hands off to start next step.
4.Find the only one “bin” file ,put it somewhere you could easily check about .Cause next we will click “Open Update File” to make the “bin” file into that green part .Then choose the “Download Update File” .
5.Finished the process with showing a success prompt by computer . Restart the radio is ok.
And by the way ,the problems you got when Updating such as system halted or kept rebooting ,all because they were installed with unmatched firmware version. So just re-download the suited one to update again it’ll be fine.