# XBee SMT module : how to unlock brick module

**URL:** <https://forums.digi.com/t/xbee-smt-module-how-to-unlock-brick-module/825>\
**Category:** XBee - Zigbee\
**Created:** [January 23, 2012, 10:24am UTC](https://forums.digi.com/t/xbee-smt-module-how-to-unlock-brick-module/825 "2012-01-23T10:24:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Guz](https://avatars.discourse-cdn.com/v4/letter/g/41988e/32.png) [@Guz](https://forums.digi.com/u/Guz)\
**Post date:** [January 23, 2012, 10:24am UTC](https://forums.digi.com/t/xbee-smt-module-how-to-unlock-brick-module/825/1 "2012-01-23T10:24:24Z")

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Hello,

I’m suing SMT version of module.

I update them on the air (firmware upgrade and settings).

Sometimes, firmware upload failed, so the module doesn’t respond anymore.

I already unlocked non-SMT module with X-CTU and reset.

But with SMT I’m stuck.

Is there any way to reset to factory defaults the module ?

Please help me to unlock these.

I’m not afraid of an hardware solution.

Regards.

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**Author:** ![lynnl](https://avatars.discourse-cdn.com/v4/letter/l/22d042/32.png) [@lynnl](https://forums.digi.com/u/lynnl)\
**Post date:** [March 1, 2012, 8:44pm UTC](https://forums.digi.com/t/xbee-smt-module-how-to-unlock-brick-module/825/2 "2012-03-01T20:44:18Z")

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Digi does sell SMT versions of the XBIB board - if your SMT module is not soldered down.

Are you designing your own hardware?

I have designed a few XBee carriers, which all use some form of ‘selector’ (like 74x157 or 251) so that the RX/TX pins can be accessed via an FTDI ‘USB to 3.3v’ cable, which allows running XCTU against the XBee while in place on the board.