# 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:** 2

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**Author:** ![AlphaElwedritsch](https://community.iode.tech/user_avatar/community.iode.tech/alphaelwedritsch/32/496_2.png) [@AlphaElwedritsch](https://community.iode.tech/u/AlphaElwedritsch)\
**Post date:** [19 March 2022 10:28 UTC](https://community.iode.tech/t/fp4-unable-to-relock-bootloader/416/2 "2022-03-19T10:28:18Z")

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Go back in bootloader  
Unlock it again  
Start from beginning with installation of recovery and iode  
Leaf bottlader open  
Start iode  
It works then also the updater

You have no other chance at the moment  
Problems with FP4 and relocking are known at the developers  
Trying to find a solution

Do not try to relock it at the moment!!!

And do nothing with lock\_critical or unlock\_critical  
This would brick it totally

At the moment you have a chance to unlock it again in boot mode

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