I am so done.... - Xiaomi Mi A3 Questions & Answers

I just want to finally try and install a custom rom into my Mi A3 which I rooted a while ago. I know I need this tool called TWRP, after encountering a myriad of errors trying to follow this guide step-by-step, I finally got to the point when I need to type "fastboot boot twrp.img" to boot into TWRP temporarily. But alas that couldn't be so easy now could it... Now I get this thing
{
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"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
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}
and it's 11:41 PM and I'm about to burst a vein. I made an account solely to make this post because I can't seem to get an actual answer anywhere else... Any ideas before I give up?

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is the bootloader unlocked ?
i think i got same message and it was because i forgot this.

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I think there are better guides. Not sure what state your system is in. I would re-install the stock rom and start afresh. Unlock your bootloader, check which slot 'a' or 'b' is the current slot, and then follow the instruction of the Custom ROM you are trying to install. It might need TWRP but Lineage Recovery is equally as good.

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#1jonna said:
is the bootloader unlocked ?
i think i got same message and it was because i forgot this.
Click to expand...
Click to collapse
Yes sir it very much is, don't think it'd have been possible to get this far otherwise

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bjlabuk said:
I think there are better guides. Not sure what state your system is in. I would re-install the stock rom and start afresh. Unlock your bootloader, check which slot 'a' or 'b' is the current slot, and then follow the instruction of the Custom ROM you are trying to install. It might need TWRP but Lineage Recovery is equally as good.
Click to expand...
Click to collapse
how do I do this?
2. does Lineage Recovery even work on Mi A3s? I don't find anything about this device on their website

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Follow the guide in the thread 'Slot A is destroyed'.

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bjlabuk said:
Follow the guide in the thread 'Slot A is destroyed'.
Click to expand...
Click to collapse
I assume this means I can just go back to magisk and hit restore images, then return to fastboot and switch to slot b and install twrp there?

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ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ said:
View attachment 5554333
I assume this means I can just go back to magisk and hit restore images, then return to fastboot and switch to slot b and install twrp there?
Click to expand...
Click to collapse
As I said, as I am not sure what state your system is in I would suggest 're-installing' the stock rom from your PC, rather than 'restoring' an image from your phone. If you have backed up your data etc (eg on Google Drive) you can restore it after you have re-installed the stock rom. You can then start again from scratch.
The latest stock rom fastboot images can be found here
https://xiaomifirmwareupdater.com/miui/laurel/
Tbh I haven't restored an image from magisk myself so I can't confirm what you are proposing, though yes I switched to slot b and installed TWRP.
You might also want to read this article on A/B partitions
https://www.xda-developers.com/how-...ess-updates-affect-custom-development-on-xda/

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Try this
https://play.google.com/store/apps/details?id=com.smartpack.smartflasher
Flash TWRP installer through the app

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Just a few tips when you do get to TWRP:
Disable dm-verity
Format data and wipe cache after you flash the new rom before first boot
Use a patched boot method instead of flashing magisk in TWRP on custom ROMs. High chance of soft brick.
DM me if you need help.