# XBP24BZ7UIT-004 vs. XPB24BUIT-004

**URL:** https://forums.digi.com/t/xbp24bz7uit-004-vs-xpb24buit-004/14428
**Category:** XBee - 802.15.4
**Tags:** replace, xbp24bz7uit-004, xpb24buit-004
**Created:** [February 25, 2015, 9:36am UTC](https://forums.digi.com/t/xbp24bz7uit-004-vs-xpb24buit-004/14428 "2015-02-25T09:36:06Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![texo](https://avatars.discourse-cdn.com/v4/letter/t/958977/32.png) [@texo](https://forums.digi.com/u/texo)
#### Post date: [February 25, 2015, 9:36am UTC](https://forums.digi.com/t/xbp24bz7uit-004-vs-xpb24buit-004/14428/1 "2015-02-25T09:36:06Z")

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Hi. We are using hundreds of XPB24BUIT-004 in different locations. However, it seems that it is difficult to buy more of them. Can we use XBP24BZ7UIT-004 in a network with XPB24BUIT-004 without changing firmware in the XPB24BUIT-004?

Is it possible to replace a XPB24BUIT-004 unit with the XBP24BZ7UIT-004?

We use firmware XBP24-B\_ZigBee\_1147.mxi and XBP24-B\_ZigBee\_1347.mxi.

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### Author: ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)
#### Post date: [February 25, 2015, 11:13am UTC](https://forums.digi.com/t/xbp24bz7uit-004-vs-xpb24buit-004/14428/2 "2015-02-25T11:13:38Z")

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No you can’t load the old discontinued znet 2.5 code on the S2B hardware. The code will not recognize the external power amplifier and low noise filter.