# FP4 - Unable to relock bootloader

**URL:** <https://community.iode.tech/t/fp4-unable-to-relock-bootloader/416>\
**Category:** System and Apps\
**Tags:** Fairphone4\
**Created:** [19 March 2022 09:12 UTC](https://community.iode.tech/t/fp4-unable-to-relock-bootloader/416 "2022-03-19T09:12:00Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![Dominic](https://community.iode.tech/letter_avatar_proxy/v4/letter/d/13edae/32.png) [@Dominic](https://community.iode.tech/u/Dominic)\
**Post date:** [27 March 2022 05:30 UTC](https://community.iode.tech/t/fp4-unable-to-relock-bootloader/416/20 "2022-03-27T05:30:03Z")

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Hallo,

the bootloader is unlocked becouse when I locked the bootloader with 2.3, I get the error that my Fairphone is corrupt and the phone will not boot.

So, I left the bootloader unlocked and the Fairphone will boot.

I have installed Iode OS 2.4 Beta desciped here  
[iodéOS 2.4 beta available](https://community.iode.tech/t/iodeos-2-4-beta-available/412) (I have used the UpdaterIodeBetaAndroid11ToAndroid11V2.apk)

With Iode OS 2.4 Beta I can lock the bootloader and the Fairphone boots.  
I have tested to unlock and lock the bootloader again and it worked.

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_[View the full topic](https://community.iode.tech/t/fp4-unable-to-relock-bootloader/416)._