# Xbee Pro S1  reprogrammed but now can't change

**URL:** https://forums.digi.com/t/xbee-pro-s1-reprogrammed-but-now-cant-change/1830
**Category:** XBee - 802.15.4
**Created:** [May 1, 2012, 8:20pm UTC](https://forums.digi.com/t/xbee-pro-s1-reprogrammed-but-now-cant-change/1830 "2012-05-01T20:20:18Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![richbay](https://avatars.discourse-cdn.com/v4/letter/r/a6a055/32.png) [@richbay](https://forums.digi.com/u/richbay)
#### Post date: [May 1, 2012, 8:20pm UTC](https://forums.digi.com/t/xbee-pro-s1-reprogrammed-but-now-cant-change/1830/1 "2012-05-01T20:20:18Z")

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Hi, I’ve just started on Xbee’s with 2 XBP24’s and a usb Explorer board.  
In my eagerness to play I have changed one of them from “XBEE PRO 802.15.4” Ver 10ED to “XBEE PRO 802.15.4 Digital IO Adaptor” Ver 17E8. I am unable to get back now and when I do a Test/Query it says communicating with modem then the Action screen comes up, if I do a reset with the button on the Explorer board it then reads back the firmware/serial number info.  
Any ideas how to get back to the original firmware and be able to do a test/query would be appreciated.  
I haven’t changed my second unit and that seems to respond to test/query ok.  
Oh, I have tried all the un-bricking and methods I can find to get it back.  
Thanks  
Richard

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### Author: ![kavya](https://avatars.discourse-cdn.com/v4/letter/k/e480ec/32.png) [@kavya](https://forums.digi.com/u/kavya)
#### Post date: [May 15, 2012, 6:09am UTC](https://forums.digi.com/t/xbee-pro-s1-reprogrammed-but-now-cant-change/1830/2 "2012-05-15T06:09:18Z")

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Hi,

You can reprogram the modules to the required Function Set using X-CTU.

You have not mentioned which un-bricking methods you have followed.

I can give few links, which worked successfully, give a try with these.  
[http://www.youtube.com/watch?v=fxOqQZD-oaM](http://www.youtube.com/watch?v=fxOqQZD-oaM)  
[http://www.jsjf.demon.co.uk/xbee/faq.pdf](http://www.jsjf.demon.co.uk/xbee/faq.pdf) , refer Q 11 and 12

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### Author: ![richbay](https://avatars.discourse-cdn.com/v4/letter/r/a6a055/32.png) [@richbay](https://forums.digi.com/u/richbay)
#### Post date: [May 18, 2012, 1:55pm UTC](https://forums.digi.com/t/xbee-pro-s1-reprogrammed-but-now-cant-change/1830/3 "2012-05-18T13:55:06Z")

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Hi,

Thanks for the reply. I was using X-CTU but everything I tried didn’t work (I was only using X-CTU).

In the end I contacted Digi and they suggested returning the unit to supplier (Farnell) which I have done and now have a working replacement.

I am waiting for a fault report and as soon as I get it I will post results.

Regards  
Richard