# AT!IMPREF Returns Error on EM7565 **URL:** \ **Category:** MC/EM Series\ **Created:** [June 25, 2021, 1:18am UTC](https://forum.sierrawireless.com/t/at-impref-returns-error-on-em7565/24090 "2021-06-25T01:18:03Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![otto](https://avatars.discourse-cdn.com/v4/letter/o/bbe5ce/32.png) [@otto](https://forum.sierrawireless.com/u/otto)\ **Post date:** [June 25, 2021, 1:18am UTC](https://forum.sierrawireless.com/t/at-impref-returns-error-on-em7565/24090/1 "2021-06-25T01:18:03Z")
Hi There ! For some reason I cant get the impref command to work at all ati Manufacturer: Sierra Wireless, Incorporated Model: EM7565 Revision: SWI9X50C\_01.14.02.00 2e210b jenkins 2020/08/19 14:18:39 IMEI: 353533100690406 IMEI SV: 12 FSN: UF946688770315 +GCAP: +CGSM,+DS,+ES at!priid? PRI Part Number: 9908685 Revision: 002.004 Customer: Generic-M2M Carrier PRI: 9999999\_9907257\_SWI9X50C\_01.14.02.00\_00\_VERIZON\_002.039\_000 Carrier PRI: 9999999\_9907258\_SWI9X50C\_01.14.02.00\_00\_ATT\_002.047\_000 Carrier PRI: 9999999\_9908609\_SWI9X50C\_01.09.04.00\_00\_DOCOMO\_002.015\_000 Carrier PRI: 9999999\_9907259\_SWI9X50C\_01.08.04.00\_00\_GENERIC\_002.011\_000 Carrier PRI: 9999999\_9908789\_SWI9X50C\_01.08.04.00\_00\_SIERRA\_002.001\_000 Carrier PRI: 9999999\_9908607\_SWI9X50C\_01.09.04.00\_00\_SOFTBANK\_002.017\_000 Carrier PRI: 9999999\_9909446\_SWI9X50C\_01.08.04.00\_00\_SPRINT\_000.001\_001 Carrier PRI: 9999999\_9909335\_SWI9X50C\_01.07.02.00\_00\_TELUS\_001.000\_000 OK at!image? TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID FW 1 GOOD 2 0 0 ?_? 01.08.04.00_? FW 2 GOOD 1 0 0 ?_? 01.07.02.00_? FW 3 GOOD 1 0 0 ?_? 01.09.04.00_? FW 4 GOOD 3 0 0 ?_? 01.14.02.00_? Max FW images: 4 Active FW image is at slot 4 TYPE SLOT STATUS LRU FAILURES UNIQUE\_ID BUILD\_ID PRI FF GOOD 0 0 0 002.047\_000 01.14.02.00\_ATT PRI FF GOOD 0 0 0 002.015\_000 01.09.04.00\_DOCOMO PRI FF GOOD 0 0 0 002.011\_000 01.08.04.00\_GENERIC PRI FF GOOD 0 0 0 002.001\_000 01.08.04.00\_SIERRA PRI FF GOOD 0 0 0 002.017\_000 01.09.04.00\_SOFTBANK PRI FF GOOD 0 0 0 000.001\_001 01.08.04.00\_SPRINT PRI FF GOOD 0 0 0 001.000\_000 01.07.02.00\_TELUS PRI FF GOOD 0 0 0 002.039\_000 01.14.02.00\_VERIZON Max PRI images: 50 AT!IMPREF=”AUTO-SIM” ERROR AT!IMPREF=”VERIZON” ERROR Any ideas on what I’m doing wrong ? Thanks in advance, /Otto ---
**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:** [June 25, 2021, 7:13am UTC](https://forum.sierrawireless.com/t/at-impref-returns-error-on-em7565/24090/2 "2021-06-25T07:13:55Z")
Did you enter AT!ENTERCND=“A710” ---
**Author:** ![jerdung](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@jerdung](https://forum.sierrawireless.com/u/jerdung)\ **Post date:** [June 25, 2021, 8:36am UTC](https://forum.sierrawireless.com/t/at-impref-returns-error-on-em7565/24090/3 "2021-06-25T08:36:02Z")
Hi otto, Could you reflash the firmware and try again? Thanks, ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [June 25, 2021, 12:51pm UTC](https://forum.sierrawireless.com/t/at-impref-returns-error-on-em7565/24090/4 "2021-06-25T12:51:23Z")
Also check to see if the unit is in LPM for some reason (at!pcinfo?). Regards Matt ---
**Author:** ![otto](https://avatars.discourse-cdn.com/v4/letter/o/bbe5ce/32.png) [@otto](https://forum.sierrawireless.com/u/otto)\ **Post date:** [June 28, 2021, 9:33pm UTC](https://forum.sierrawireless.com/t/at-impref-returns-error-on-em7565/24090/5 "2021-06-28T21:33:18Z")
Hi Matt ! Mystery solved. The EM75xx AT Command reference has the command listed as AT!IMPREF=”AUTO-SIM” The correct command is AT!IMPREF=“AUTO-SIM” Notice the difference ? Took me a while hehe Would be handy if the AT command processor would treat both quote types the same, anyway no big deal Thanks for your help! /Otto