Alleged MIUI 12 Phase 2, Phase 3, and Phase 4 roadmap raises further questions on update timelines; here's a list of all purported Xiaomi and Redmi devices under each phase

It is well known by now that Xiaomi is rolling out MIUI 12 in phased manner to cover as many phones as possible. Previously, we had reported that Xiaomi has started accepting applications for Phase 2 beta testing of MIUI 12 in several countries. Now, we are getting to know that Xiaomi would be rolling out MIUI 12 in a total of four phases, at least in China.

Here's a list of devices included in each phase:

Phase 2

We have previously indicated that Phase 2 beta testing for the Global ROM includes devices such as the Redmi Note 7, Redmi Note 8 Pro, and the Poco F1. Other devices grouped under Phase 2 include:

1. Mi MIX 3
2. Mi MIX 2S
3. Mi 8/Mi 8 Pro
4. Redmi Note 7, Note 7 Pro
5. Mi CC9
6. Mi CC9 Pro
7. Mi 9 SE

Phase 3

1. Mi Mix 2
2. Mi 6X
3. Redmi 8/Redmi 8A
4. Redmi 7/Redmi 7A
5. Mi CC9E
6. Mi Note 3
7. Mi Max 3
8. Mi 8 Youth Edition
9. Mi 8 SE
10. Redmi S2
11. Redmi Note 8
12. Redmi 6/Redmi 6A/Redmi 6 Pro
13. Redmi Note 5

Phase 4

1. Redmi Y3
2. Redmi Note 7S
3. Redmi Note 6 Pro
4. Redmi 4X
5. Redmi Note 4X
6. Redmi Note 9 Pro
7. Redmi Note 9 Pro Max

Now, here's the catch. Do remember that above grouping pertains to probable phases for the MIUI 12 Chinese ROM rollout. That being said, it does indicate that the update for global devices will follow soon — just that we do not know when. According to a previous official post by a Mi Moderator, the devices destined to receive MIUI 12 are segregated into only two phases. However, if this unofficial schedule for the Chinese ROM is true, we may actually see an even more staggered rollout for the global ROM as well. 

We are already seeing the MIUI 12 global update being put on hold for devices such as the Redmi Note 7, Redmi Note 8 and Redmi Note 9, which means they may be pushed to a later date in another phase. It may be noted that devices such as the Redmi K30 Pro, Redmi K30 4G, and Mi 10 Lite Zoom have already received the stable MIUI 12 bits. 

Also, note that there is no mention of the Poco F1 in this list as this is an update schedule for China and the device isn't sold there. It is also interesting to see the inclusion of old devices such as the Redmi 4X and Redmi Note 4X in this list. It is very possible that Xiaomi will just update the MIUI skin and leave the base OS as such for these devices.

So, while the MIUI 12 Beta can be accessed with limited enrolment slots at the moment, it looks like it may take some more time before stable bits hit the plethora of Xiaomi devices globally. There is no tentative schedule available for these updates as plans keep changing, so we can only rely on forum posts for any indications of devices receiving them.