Unlike the majority of smartphones on Xiaomi’s portfolio, the Xiaomi Mi A3 runs a close-to-stock version of Android, thanks to its Android One branding. The Google-flavored Android UX also ensures that the device is eligible to get 3 years of monthly security updates. Matter of fact, Xiaomi has pushed a new security update for the global variant of the Mi A3 earlier today that does bring in the July 2020 Android security patches. But there’s a major problem: The latest update (V11.0.3.0.QFQMXTC) reportedly breaks the dual-SIM functionality of the phone, introduces a carrier-specific logo in the boot animation out of the blue, and commits a bunch of unexpected changes.
Why does this happen?
As it turns out, today’s update carries an entirely different identifier (QFQMXTC) than the global firmware (QFQMIXM). The “XTC” tag is actually meant for Mexican telecom operator Telcel – the name which is visible in the altered boot animation.
@MiIndiaSupport help! This is really serious. Can’t make or receive calls. @manukumarjain @s_anuj @geekyranjit @beebomco please see the above tweet! They gave some other regions update to #mia3 pic.twitter.com/YZkuPSJz7L
— Dakshit Shah (@DakshitShah) July 13, 2020
Although the Mi A3 is an Android One phone, Xiaomi maintains a couple of regional firmware channels for this device. Apart from the global and European software builds that you can find on respective unlocked units of the Mi A3, there exist some variants of the phone sold through carriers that run carrier-customized firmware packages. Those builds often come with pre-installed network configurations, brandings, and apps corresponding to the particular carrier, just like the one rolled out a while ago.
Only this time, Xiaomi somehow mixed up the targets. Telcel’s firmware basically disables the second SIM slot of the global (as well as Indian) Mi A3 models, virtually making it a single-SIM phone. It also comes with a handful of carrier “bloatware” apps.
What can be done about it?
If you’ve already installed the update, there is no easy way to revert back. Given that the bootloader of your Mi A3 is unlocked, then only you can manually flash the June 2020 global firmware (software version V11.0.16.0.QFQMIXM) on your phone using Mi Flash and regain the dual-SIM functionality.
There is now a post on the Mi Community, suggesting users not to install the rogue update. The OTA in question is about 1.40GB in size, which is much larger than typical security updates. Users are thus advised to take a look at the update size and skip it for the time being. This is a crucial bug that needs to be fixed by Xiaomi as soon as possible.
Source: XDA Forums (1, 2), Mi Community
Thanks to Mi Community member BOTROBOTMOD and Twitter user Kaushik Raman for the screenshots!
The post PSA: Xiaomi Mi A3’s latest update accidentally breaks dual-SIM functionality appeared first on xda-developers.
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