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Hey Mi Fans!
Today we are going to look at the difference between the different types of ROMs that exist in Xiaomi and the meaning of their nomenclature. Since there are so many variants of ROMs, we will try to explain each variant so that we can all understand which MIUI version we have installed.
As we all know, Xiaomi supports a very extensive catalog of Mi Phones, and it is not only all the models but the variants of ROMs that each model supports.
As a general rule, this is the procedure for updates by Xiaomi. This process extends to an average of 3 years of updates.
MI range : 2 Android version uploads, 3 MIUI version uploads.
Redmi range : 1 Android version upload, 3 MIUI version uploads.
Well, knowing this, now we are going to look at the official ROM variants that exist in this world from our favorite brand, Xiaomi.
China Beta ROM:
This ROM is the most advanced of all, where the latest MIUI news is implemented, which then reaches the stable ones. This ROM is not available for all Mi Phones models, it is only English and Chinese language and does not have Google services . The nomenclature of this ROM is different from the stable ones, it is characterized by the fact that their numbers indicate the date of compilation of the ROM. They usually release the ROM on the same build day, although it can sometimes be delayed for various reasons.
As you can see, the first figure indicates the year (2019) , the second the month and the third the day . This ROM is updated weekly.
China Stable ROM :
After the new features have been released in the China Beta ROM, they are implemented in this ROM . This variant is more advanced than the global ones, but less than the beta. Like the China Beta ROM, it only has English and Chinese language and does not have Google services. The nomenclature is similar to the global ones except for one detail.
As we can see, the letters CN indicate that it is a China ROM . This ROM is usually updated in 2 to 3 months on average.
Global Stable ROM:
This is the ROM that the vast majority of us have and is the one that is installed on our Mi Phones when buying them. Once all the new features in the previous variants have been tested, they reach the stable global version. The nomenclature is similar to the China Stable ROM except for one detail.
As we can see, the letters MI or EU appear, it depends on the variant. The 2 are Global Stable ROMs.
Now, within the Global Stable ROM, there are a few variants, depending on the territory for which the Mi Phones are intended.
EU : Europe
TR : Turkey
RU : Russia
IN : India
ID : Indonesia
All are global, with multilanguage, but adapted to the laws of each territory. These ROMs used to update an average of 2 to 3 months, although lately they are taking between 4 and 5 months.
To all this, which is no small thing, are added the famous and dreaded operator ROMs. These ROMs are known for their little development, hence they update so infrequently.
Now let's see what the nomenclature of the ROMs means:
In this image we have 2 versions of ROM of the same model, a Mi 10, with China ROM.
The first letter we see indicates the Android version . R = Android 11. Q = Android 10.
The next 2 letters , is to recognize the model internally by Xiaomi, JB .
The next 2 letters indicate the ROM variant. CN = China ROM.
The last 2 s indicate the recipient of the ROM. XM = Xiaomi.
Let's look at other examples of Global ROM:
Here we can see 3 different ROM variants, with independent developments , correspond to the Redmi Note 9 Pro.
First letter , Q = Android 10
Next 2 , JZ, Mi Phone model.
Next 2, TR (Turkey), MI (Global), EU (European).
Last 2 , XM = Xiaomi
Let's now look at an example of an operator ROM:
We see all the letters as the examples from before, except for one detail, the last 2 letters are not XM , Xiaomi, but they are VF = Vodafone
It should be noted, since it is seen a lot by My Community, that when downloading a ROM for our device, we must pay close attention to the nomenclature of our MIUI version and the one we want to install . The vast majority use the native updater to switch between ROM versions but it is very limited. You cannot change the Android version using the updater, nor can you change between variants, for example: go from global MI to global EU, or from operator ROM to official ROM.
Note: The screenshots are taken from the Downmiwebsite , (with the permission of its maintainer @Samuel Rodríguez) where we can download our official ROMs.
Well, I hope it is useful to you and thus be able to know what variant of ROM you have on your Mi Phone.
And that, Mi friends, is about it for today.
Which ROM are you using?
Do you prefer one ROM over another?
Please let us know in the comments below.
Adapted from an original thread by our great friend Franelche83
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