# AT+WOPEN respons

**URL:** <https://forum.sierrawireless.com/t/at-wopen-respons/5350>\
**Category:** Legacy AirPrime modules\
**Created:** [November 25, 2011, 6:19am UTC](https://forum.sierrawireless.com/t/at-wopen-respons/5350 "2011-11-25T06:19:57Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![openat](https://avatars.discourse-cdn.com/v4/letter/o/85f322/32.png) [@openat](https://forum.sierrawireless.com/u/openat)\
**Post date:** [November 25, 2011, 6:19am UTC](https://forum.sierrawireless.com/t/at-wopen-respons/5350/1 "2011-11-25T06:19:57Z")

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Hi,  
I tried to erase my app from flash using AT+WOPEN. It worked when I use AT+WOPEN=4,

```auto
AT+WOPEN=4
OK
```

The problem is when I send AT+WOPEN=3

```auto
AT+WOPEN=3
+CME ERROR: 532
```

What went wrong? Is there any other solution to completely erase app from flash?

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<div class="post-metadata">

**Author:** ![tomridl](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/tomridl/32/2704_2.png) [@tomridl](https://forum.sierrawireless.com/u/tomridl)\
**Post date:** [November 25, 2011, 7:03am UTC](https://forum.sierrawireless.com/t/at-wopen-respons/5350/2 "2011-11-25T07:03:29Z")

</div>

AT+WOPEN=3 erases object memory (objects that you store using the Flash API). If the flash has already been erased using this command, you will receive the error that you did.

AT+WOPEN=4 on the other hand erases application flash memory (i.e the Open-AT application that you downloaded onto the module). Once you send this command, the application is completely removed.

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<div class="post-metadata">

**Author:** ![openat](https://avatars.discourse-cdn.com/v4/letter/o/85f322/32.png) [@openat](https://forum.sierrawireless.com/u/openat)\
**Post date:** [November 26, 2011, 2:07am UTC](https://forum.sierrawireless.com/t/at-wopen-respons/5350/3 "2011-11-26T02:07:03Z")

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Thank tomridl,  
I’m a newbie in openat stuff, so thank for informed me this little thing.  
Best Regards.

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<div class="post-metadata">

**Author:** ![jchait](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jchait](https://forum.sierrawireless.com/u/jchait)\
**Post date:** [December 27, 2011, 8:46pm UTC](https://forum.sierrawireless.com/t/at-wopen-respons/5350/4 "2011-12-27T20:46:06Z")

</div>

I did the same thing (WOPEN = 3 & WOPEN=4) and now I can’t get WIPCFG=1 to work (I get ERROR).  
How can I restore the default settings?. I did installed the Hello World program and it runs. Also with AT+WOPEN=2  
I get +WOPEN: 2,“AT v06.20”,“AT v06.30” but WIPCFG=1 keeps giving errors.

Thanks in advance

Jaime

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<div class="post-metadata">

**Author:** ![Rex\_alex](https://avatars.discourse-cdn.com/v4/letter/r/73ab20/32.png) [@Rex\_alex](https://forum.sierrawireless.com/u/Rex_alex)\
**Post date:** [December 28, 2011, 11:08am UTC](https://forum.sierrawireless.com/t/at-wopen-respons/5350/5 "2011-12-28T11:08:09Z")

</div>

Hi,

First you need to download WIPSoft.dwl(you will find this inside the WIP folder, under the software suite installations) file on the modem, then issue AT+WOPEN=1, then try to issue AT+WIPCFG command.

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<div class="post-metadata">

**Author:** ![jchait](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jchait](https://forum.sierrawireless.com/u/jchait)\
**Post date:** [December 29, 2011, 8:05pm UTC](https://forum.sierrawireless.com/t/at-wopen-respons/5350/6 "2011-12-29T20:05:34Z")

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Thanks a lot Rex\_alex, that did it.

Jaime