OnePlus 6 (enchilada)
DOS build divested-18.1-20210814-dos-enchilada
bootloader locking
this is pretty easy to support/enable, you just have to integrate the following into your builds
If it’s pretty easy - why is’t not applied by ROM deveolopers on the devices where it is practically possible?
That since DivestOS build divested-18.1-20210814-dos-enchilada does not boot properly, accordingly cannot be set up, the relocking bootloder also cannot be verified and validated. However, it would be a special unique selling point - for the device and the developer.
There are a number of CustomROMs for the OnePlus 6 that work at least on the basis of Android 10, but mostly on the basis of Android 11. Functioning means here: The system boots and can be set up. With none of the ROMs the bootloader could be re-locked. The relocking only leads to a bootloop in the best case, but also caused a fatal system crash. This tutorial describes the effort for a re-lock bootloader on a OnePlus 8T with LineageOS 18.1.
All ROMs listed below and installed by me, such as AICP (Android Ice Cold Project), ArrowOS, CarbonROM, /e/OS-Q (beta), Havoc-OS, LineageOS-for-microG also work with microG, are at least ‘signature spoofing’ ready and can thus be equipped with the unique MinMicroG NoGoolag Edition - with the three exceptions:
/e/OS-Q (beta) and LineageOS-for-microG, whose ROMs are exclusively delivered with preinstalled and specially adapted microG, as well as LineageOS 18.1 from ‘The LineageOS Project’, which is strictly against microG, but ‘tolerates’ the GApps. But for that there is the fork LineageOS-for-microg by team Marvin Wißfeld.
All ROMs install their ‘own’ custom recovery without being asked, whose code base is the Lineage recovery. So I was allowed to install the SHRP SkyHawk and TWRP Recovery, which are equipped with a larger range of functions, several times.
With none of the ROMs the bootloader could be re-locked. This tutorial describes the effort for a re-lock bootloader on a OnePlus 8T with LineageOS 18.1. Nevertheless, OnePlus 6 fans can be happy, because the choice for a custom ROM has never been bigger and everyone should find his ROM according to his taste and demands. Goodbye Oxygen OS (OOS).