[QUESTION] Kernel flash - Redmi 9C Questions & Answers

I have my new redmi 9c 4/128 but i found out that it does not have the same hardware than other 9c's so every official custom recovery is not installing (not compatible), so i ported a twrp no i can install custom roms right ? no i can't because all the roms made for redmi 9c are not working on me because i have a different hardware i think.
I spent weeks searching for the solution and found this. My question is : Can i flash the kernel on my 9c ??? Is it safe ???? and if not, how can i install custom roms then ?
i tried like 5 garden custom roms compatible for my redmi 9c no one worked, i always get a black screen and a one frame green line on top (maybe the screen is different from other 9c ?)
i also tried to install the miui 12.0.10 and 12.0.8 i think both roms have a screen compatibility issue, (the brightness in the redmi logo is also really weak and fading to black, weird) they nearly broke my screen with lines that lasted hours even after returning to 12.0.21 .
After all my experiences, i really think that my phone have something different from others

Related

custom rom-bt drain-redmi 4a

i have a redmi 4A. after i started flashing custom roms i noticed reduced screen time. the stock rom (miui 10, nougat) gave me around 8-10 hrs of screen time. while custom roms give around 4.5-5 hours of screen time.
i didnt root my device , and dont intend to do on future and no custom kernels. i even used greenify(no root), i used have used aex pie, rr pie, and paranoid quartz 3 q, all of them give me same amount of 4-5 hours of screen time. is there a way to get more screen time byusing custom kernels ??(if so suggest a few for android q , since i cant find anything for my device) or any other way ??

Problems with MIUI 12.5.5

Hi Everyone
As a Redmi 9 user
I am really get bored of the bugs that appear on my phone in this version of MIUI 12.5.5
On Bluetooth devices it suddenly disconnects and then comes back
When i typing at moments writes the symbol (#) many times
And the ghost touches of the multitasking and back button
In the previous version they were still present but not the one with the ghost touches
As a beginner of this, I am urgent to find solutions without the need to reach a Custom ROM
What do you recommend me to do?
I also feel some things the same, maybe you can downgrade MIUI version or patiently wait until MIUI 13 comes out for Redmi 9. Hope Xiaomi fix this problem soon

Question Redmi 9T Differences

Hello,
I have a Redmi 9T (lime) device. But unfortunately no ROM has been made for lime. What happens if I install ROMs for Juice or Chime?
For example, it is stated as lime in this, but when I want to download it, chime appears. Is it okay?
Project Elixir
projectelixiros.com
Up.
Up.
There is no major differences.
1. For Poco - 1 camera less, may lead to instability of stock camera, not more, gcam anyway.
2. For any - no nfc/nfc, no problem on hardware without nfc, but won't work at all on roms built without nfc support.
Ok so I hardened my heart and installed elixer on my Redmi 9T(Lime) and it went pretty bad (luckily my phone survived).
1. The unofficial recoveries are not stable enough and I had a lot of trouble due to encryption
2. After messing around I was able to install the rom (have to try 2-3 different recoveries)
3. After successful installation the phone was stuck in a bootloop
4. I gave up at that time and just flashed the stock rom
So conclusion is that there might not be major difference on the surface but I think at firmware level there are difference
Ok forget about my previous comment I was an idiot..
So the bootloop was because of encryption and today I was able to flash elixer on my redmi 9T (LIME)
So back to your question whats the difference and that is none, I will explain why:
1. The phones Poco M3, Redmi power, redmi 9t lime, lemon, 4G, etc are same and are given a unified code name Juice or Chime depending on the firmware vendor used by the developer of the custom rom.
2. Chime codename custom roms are using OSS vendor which is opensource and is supported for a longer period of time but is not stable yet
3. Juice codename custom roms are using MIUI Stoch vendor firmware which is obviously developed by xiaomi and is very stable
you can flash any chime or juice rom in your phone as long as you follow the developers guide properly because there are very high chances that you will run into encryption issues because recoveries dont support androind 11 or up decryption.
mohsinmumtazm said:
Ok forget about my previous comment I was an idiot..
So the bootloop was because of encryption and today I was able to flash elixer on my redmi 9T (LIME)
So back to your question whats the difference and that is none, I will explain why:
1. The phones Poco M3, Redmi power, redmi 9t lime, lemon, 4G, etc are same and are given a unified code name Juice or Chime depending on the firmware vendor used by the developer of the custom rom.
2. Chime codename custom roms are using OSS vendor which is opensource and is supported for a longer period of time but is not stable yet
3. Juice codename custom roms are using MIUI Stoch vendor firmware which is obviously developed by xiaomi and is very stable
you can flash any chime or juice rom in your phone as long as you follow the developers guide properly because there are very high chances that you will run into encryption issues because recoveries dont support androind 11 or up decryption.
Click to expand...
Click to collapse
So does anyone know how long its going to take for chime to become stable?
Labib235 said:
So does anyone know how long its going to take for chime to become stable?
Click to expand...
Click to collapse
I am using Elixer OS 3.3 and its quite stable, you can try, the only issue I found is with recoveries and once the Elixer rom is booted its pretty stable for daily use
mohsinmumtazm said:
I am using Elixer OS 3.3 and its quite stable, you can try, the only issue I found is with recoveries and once the Elixer rom is booted its pretty stable for daily use
Click to expand...
Click to collapse
When I tried Project Elixr, the phone was stuck on Mi, so I will try android 11 rom today or tomorrow, any suggestions? I will try PixelOS accordingly.
#GengKapak - Browse /ROM/juice at SourceForge.net
sourceforge.net
mohsinmumtazm said:
there are very high chances that you will run into encryption issues because recoveries dont support androind 11 or up decryption
Click to expand...
Click to collapse
How did you solve the issue with decryption ?
Hydent said:
How did you solve the issue with decryption ?
Click to expand...
Click to collapse
Flash latest stock miui using miflash tool, but be very careful while selecting flash option, only select "wipe all and flash" do not in any case lock the bootloader again
mohsinmumtazm said:
Flash latest stock miui using miflash tool, but be very careful while selecting flash option, only select "wipe all and flash" do not in any case lock the bootloader again
Click to expand...
Click to collapse
If you accidentally lock the bootloader then chances are you will brick the device
mohsinmumtazm said:
If you accidentally lock the bootloader then chances are you will brick the device
Click to expand...
Click to collapse
If I have encryption problems, I will not be able to install a custom rom ? and that's the only way to brick the device ?
Hydent said:
If I have encryption problems, I will not be able to install a custom rom ? and that's the only way to brick the device ?
Click to expand...
Click to collapse
As long as you dont lock the bootloader you can recover from most of the situations, you can still install the rom, encryption issue occurs when you dont follow the rom maintainers instructions while installing the rom, flashing the stock firmware will reset the process and you have to start again from step 1
I have an ignorant question. Been thinking about this since yesterday.
I know the NFC equipped R9T are region dependant, but just recently Google Wallet is now available in my region and also supporting NFC contactless payments with select banks. The R9T in my region are being sold without NFC. A global variant Redmi 9T for Malaysian market.
My silly question is, is it possible for us to obtain the NFC hardware or get it from a donor R9T phone that has it, and then install it in the phone and make it working? Like plug and play?
I assume it's very, very impossible... But assuming it cannot, why tho? Is there a permanent restriction hard-coded into the phone due to region dependant?

Do ROMS for Merlinx devices also work on Merlin devices?

Hello community,
I have problems finding a lightweight and working custom rom with good performance for my Xiaomi Redmi Note 9 (Merlin) device. The model name is M2003J15SS. First of all one question. Should ROMs for devices with codename "Merlinx" also run on my "Merlin" device?
I first flashed (without recognizing it) Pixel Experience for "Merlinx". The phone was working at first, but started lagging after a short time. Therefore I decided to try another ROM because I could not find a fix. The second one was PixelPlusUI. This time i used a correct ROM for "Merlin" but my device wont boot now! I have already unbricked it few weeks ago so I was able to stop the bootloop again. Now I really need some help before I have to do this again...
Does someone have an advice? Would be nice if it is an official ROM.
Thanks and greetings.
Merlin and merlinx is same devices and you can use there ROMs
I recommend you to first flash a global fastboot ROM than custom ROMs
It's can be helpful to reduce lag
Also you can turn off sync , debloat unwanted apps , use mods and etc..

Full guide on how to install custom recovery plus custom rom

Hello there, i am using redmi note 9/10x 4g currently on miui 13 Android 12 and I wanted to install a custom rom in it.. so anyone could please give me a full guide on start to end.. i have already unlocked my bootloader and k want to install a custom recovery and after that a custom rom.. so please someone give me a full guide for this miui version..
Thanks in advance..
First of all, it depends on what ROM you would like to use. I use Project Elixir which is based on Pixel Experience. The maintainer is no longer active so you rely on yourself. The newest 3.4 version requires MIUI 12.5.4 Global (or EEA if you end up with a soft brick) as it's based on the R vendor rather than the S vendor. You can find all other information either on the GitHub or Telegram group. (Yes, feels weird to use Telegram) Here's the quick guide https://github.com/ProjectElixir-Devices/Wiki/blob/tiramisu/merlinx.md
Redmi Note 9 has a codename merlinx in this case as there's already a Motorola phone with a codename merlin and many people were fooled and got their phones hard bricked. Since this is a MediaTek chipset, you don't have any A/B partitions. If you don't follow the guide or flash the required firmware, you will end up with a beautiful error, maybe even a permanent one. The easiest way for me to flash the ROM from the crdroid recovery was the ADB Sideload method as my SD Card wasn't picked up by the recovery. Make sure you have a reliable USB connection that won't get interrupted during the update. You may find a lot of missing stuff and glitches in the ROM like purple battery indicator when in landscape mode, random freezes, a stock battery widget is broken (Android 13 build issue in general) and so more. There's no custom battery indicator when charging on a full shutdown. You will have a default MIUI one.

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