# Bricked Unit by Running out of Space?

**URL:** <https://forum.sierrawireless.com/t/bricked-unit-by-running-out-of-space/31636>\
**Category:** FX30\
**Created:** [February 21, 2024, 3:04pm UTC](https://forum.sierrawireless.com/t/bricked-unit-by-running-out-of-space/31636 "2024-02-21T15:04:13Z")\
**Posts on this page:** 1\
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**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:** [February 21, 2024, 5:55pm UTC](https://forum.sierrawireless.com/t/bricked-unit-by-running-out-of-space/31636/6 "2024-02-21T17:55:29Z")

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if you have the UART port, you can set AT!MAPUART=16,1, and then after reboot, there will be linux console terminal in this UART port.  
After that you can use the flash\_eraseall command to erase the userapp partition.

> [@Swiflash -r broken with release 12 on wp77xx?](https://forum.sierrawireless.com/t/swiflash-r-broken-with-release-12-on-wp77xx/20957/2):
>
> According to the release note of fw r12, QTI9X07-2870 is to fix userapp partition being erased which is security hole. You might also try the following without downgrading to older version: (Be careful of the mtd number, different FW might have different mtd number for userapp partition !!! ) root@swi-mdm9x28-wp:~# cat /proc/mtd|grep userapp -i mtd16: 08300000 00040000 "userapp" root@swi-mdm9x28-wp:~# pwd /home/root root@swi-mdm9x28-wp:~# ls UART\_Test1.wp77xx.update root@swi-mdm9x28-wp:~# fl…

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