# EM9191 AT!DAFTMACT returns +CME ERROR: operation not supported

**URL:** https://forum.sierrawireless.com/t/em9191-at-daftmact-returns-cme-error-operation-not-supported/28311
**Category:** IoT Modules
**Tags:** fw-upgrade
**Created:** [November 8, 2022, 8:50pm UTC](https://forum.sierrawireless.com/t/em9191-at-daftmact-returns-cme-error-operation-not-supported/28311 "2022-11-08T20:50:21Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![jolene.kozak](https://avatars.discourse-cdn.com/v4/letter/j/ec9cab/32.png) [@jolene.kozak](https://forum.sierrawireless.com/u/jolene.kozak)
#### Post date: [November 8, 2022, 8:50pm UTC](https://forum.sierrawireless.com/t/em9191-at-daftmact-returns-cme-error-operation-not-supported/28311/1 "2022-11-08T20:50:21Z")

</div>

I have an EM9191 that had firmware SWIX55C\_01.07.19.00 originally on it. I was able to get it to enter the factory test mode with the below commands.  
AT!ENTERCND=“A710”  
AT!DAFTMACT

I have update the firmware to SWIX55C\_03.09.14.00, but when running the the **AT!DAFTMACT** command it returns “+CME ERROR: operation not supported”. Any idea why?  
 ![image](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/b/b64519ddbffdc77ef1be3a9898033371d9ea778d.jpeg)

---

<div class="post-metadata">

### Author: ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)
#### Post date: [November 9, 2022, 12:00am UTC](https://forum.sierrawireless.com/t/em9191-at-daftmact-returns-cme-error-operation-not-supported/28311/2 "2022-11-09T00:00:25Z")

</div>

I don’t see such problem on FW 03.09.11.00, maybe you can try the same:

```auto

at+cfun?
+CFUN: 1

OK
ati3
Manufacturer: Sierra Wireless, Incorporated
Model: EM9191
Revision: SWIX55C_03.09.11.00 7bf975 jenkins 2022/06/10 20:36:01
IMEI: 355890340121234
IMEI SV: 22
FSN: 78214751101234
+GCAP: +CGSM

OK
at!entercnd="A710"
OK
at!daftmact
290300

OK
at!daftmdeact
290400

OK
at+cpin?
+CPIN: READY

OK

```