Help with stuff related to installing Custom ROMS - Redmi 9 / Poco M2 Questions & Answers

Hi, I'm pretty new to installing ROMS. Infact I don't even know what unlocking bootloader means and how to do all this stuff but I would like to learn how.
I heard that rooting/installing roms is specific to each device and brand and since I use a Redmi 9 ,here I am.
I would like to get help on the following topics:
-How do I unlock my bootloader? Does it void warranty? Can I lock my bootloader again at the time of selling?
-How do I install a Custom ROM and Custom recovery? This might be a noob question but I seriously dont want to brick my device or anything.
-Do I need to root my phone to install a Custom ROM?
Any links to these topics would be greatly appreciated.
Thanks for the help.

You'll probably be better off if you go to Google and YouTube and do some research on your own. About the bootloader its possible to relock it but the status may change to relocked.

Related

Questions From a Would be Owner

Hello guys,
Just a few questions so I know what I am getting into
1) The phone can be rooted. However, if i want to run on a custom ROM or use mods such as the music mod, I would have to unlock the bootloader, yes?
2) Once the bootloader is unlocked, I would lose the 'Bravia Engine' feature of the phone. What else will I lose? For those who have lost it, is the trade off, of being able to run Custom ROMs and mods while losing the 'Bravia Engine' feature worth it?
3) If I have to send the phone for warranty, I could just re-lock the bootloader and send it back for warranty. Is there a chance somehow that they'll reject the phone if they detected that the phone's bootloader was tempered with?
arvin2212 said:
Hello guys,
Just a few questions so I know what I am getting into
1) The phone can be rooted. However, if i want to run on a custom ROM or use mods such as the music mod, I would have to unlock the bootloader, yes?
Click to expand...
Click to collapse
no
arvin2212 said:
Hello guys,
Just a few questions so I know what I am getting into
2) Once the bootloader is unlocked, I would lose the 'Bravia Engine' feature of the phone. What else will I lose? For those who have lost it, is the trade off, of being able to run Custom ROMs and mods while losing the 'Bravia Engine' feature worth it?
Click to expand...
Click to collapse
No clue since mine isn't/can't be unlocked. The only reason for me to unlock the BL (Even though it can't be done) would be, to flash a custom kernel, beside that I don't see any other reasons why I should unlock it.
arvin2212 said:
Hello guys,
Just a few questions so I know what I am getting into
3) If I have to send the phone for warranty, I could just re-lock the bootloader and send it back for warranty. Is there a chance somehow that they'll reject the phone if they detected that the phone's bootloader was tempered with?
Click to expand...
Click to collapse
Once it's unlocked there is no way back.
So if you want to root your phone, use custom roms (without custom kernels) you don't need to unlock the bootloader.
Dsteppa said:
no
No clue since mine isn't/can't be unlocked. The only reason for me to unlock the BL (Even though it can't be done) would be, to flash a custom kernel, beside that I don't see any other reasons why I should unlock it.
Once it's unlocked there is no way back.
So if you want to root your phone, use custom roms (without custom kernels) you don't need to unlock the bootloader.
Click to expand...
Click to collapse
Thank you very much for the reply.
I assumed as such from reading some posts initially, but then I went to the ROM section (If i am not mistaken) and there is a post on how to unlock the bootloader and then there is the Why section where it says that you could then use custom ROMs and mods which then confused me.
If i can use custom roms and mods without unlocking the bootloader, then I'll definitely be getting this phone.
I'll take advantage of this thread to ask one simple question: once we rooted the XZ and flash the Mods we find useful, we no longer get updates from the official Sony firmware in the future, right?
labroste said:
I'll take advantage of this thread to ask one simple question: once we rooted the XZ and flash the Mods we find useful, we no longer get updates from the official Sony firmware in the future, right?
Click to expand...
Click to collapse
First backup your firmware with http://forum.xda-developers.com/showthread.php?t=2188129
You can go back at any time to your original firmware and you can have the updates via pcc or sus.
Sent from my C6602 using xda premium

Total noob - unlocking, kernels, roms....

Hello everyone!
I got my HTC one M7 and it's my first smartfone ever so I'm a total noob at these things.
I know there are many threads for beginners but could someone just answer a couple of question really quick and simple, or at least point me to the appropriate threads
1) is there a way to SIM unlock it for free? It's carrier locked to VIP Croatia
2) which method is the easiest to unlock the bootloader?
3) I plan to install that kernel which gives you the option to use HTC logo as a power on/off button, will I have to install that kernel before or after a custom ROM?
Thx
MP_7 said:
Hello everyone!
I got my HTC one M7 and it's my first smartfone ever so I'm a total noob at these things.
I know there are many threads for beginners but could someone just answer a couple of question really quick and simple, or at least point me to the appropriate threads
1) is there a way to SIM unlock it for free? It's carrier locked to VIP Croatia
2) which method is the easiest to unlock the bootloader?
3) I plan to install that kernel which gives you the option to use HTC logo as a power on/off button, will I have to install that kernel before or after a custom ROM?
Thx
Click to expand...
Click to collapse
Your expensive device can become useless pretty quick if you don't know what you're doing.
Check this out as a general guide: http://forum.xda-developers.com/showpost.php?p=45432325&postcount=2
To answer your questions, I don't know about sim unlock. Always had unlocked devices. Maybe just pay the $10 on eBay and get someone to provide a code?
Easiest way to unlock bootloader is through htcdev - official hTC site for unlocking etc.
Last one, don't know of a kernel for our devices which allows power on/off by hitting the logo.
With kernels, you need to flash after the custom rom as the custom rom will have it's own kernel which will overwrite your custom kernel if you flash it first.
Good luck.
First of all thx a lot for your reply cr1960
Yes I know it's pretty risky, that's why I'm here, I have to admit though I had some little experience only in changing rom-s, once turned a korean S2 into international version, and recently installed cyanogenmod on my old man's S3 mini, but of course I consider myself a total noobie.
I've been searching yesterday on ebay yes, but I hope it will work as I've been reading some ppl complaining I didn't work for their carrier and stuff like that, hopefully they offer refunds
Thx for the good luck, I'm gonna need it

Newb needs some direction

Hiya I got a tmobile l90 d415 Its software is on d41520c 5.0.2 an so far its rooted but i think i need to unlock the bootloader an maybe install a custom rom. Im just not sure about which process to unlock my bootloader. Thank you everyone on xda for supporting this cool phone!
Your bootloader I unlocked so no need for that, proceed to installing custom recovery, TWRP is obvious choice for many reasons.
Look a bit around forum and you will find all you need just go easy and good luck !!!

Need simple Help with directions on proceeding to root and flash rom

Okay, so I may ask quite a dumb question, because I do not want to proceed to soft/hard brick my device
but I am not too dumb, So far I have rooted and flash many sony devices and one Asus + Mi device
I did research on HTC, learned about S-off, will be glad to google futher or watch youtube vid that is not in english to follow/learn the correct way
So just that It won't be hard to explain me
Just that, I have HTC Desire 626s T-Mobile device,
and it is sim locked, But bootloader unlocked,
What I want end result is, I prefer having a custom rom, with google play compatibility and without bloatware, so maybe CM roms are best, with root functionality, and I do not care much about Security, but keeping it off seems better,
There are just soo many tools out there, to unlock boot loader, flash twrp, and ROMs
So I'm confused, as some threads have title like for AT&T, Sprint, I don't know if those will work for me, if I flash/follow Sprint's instruction for T-Mobile device that I own, I may end up bricking a device which is not much in development right now
So is there any proper way/thread/method/video/guide I may follow from start to end with either custom or stock(with bloatwares removed) ROM with SIm Unlocked, S-off, and Root

Questions about Rooting Xiaomi MI 8

So, I have a Global MI 8, with stock rom, on MIUI 10.2.3, locked bootloader.
I was contemplating rooting, since i always have rooted phones.
Was looking into some tutorials, and i have a couple of questions, that are still the things that are preventing me to move on with this.
1) In some tutorials, as part of the process to Flash Magisk, it is mentioned a flashing of a script that removes encryption, but some others tutorials don't. So... question would be... is it alwasys necessary? Or just if you encrypted your phone or something?
2) Since unlocking your bootloader makes some thigns not working (like the Find my device thing and other banking things...) i was wondering if the bootloader can be re-locked. I plan to stay with the stock Android, but i assume i have to drop the root? So...maybe re flashing stock rom/recovery/bootloader and re-lock after? I'm not clear with this part, so if anyone can shed some light on it, it's very appreciated.
Thanks

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