Xiaomi has accidentally pushed in Mexican carrier Telcel firmware to the MI A3 global variants. The latest update (V126.96.36.199.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. The “XTX” tag is actually meant for Mexican telecom operator Telcel.
@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
What to do now?
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 V188.8.131.52.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.
“We are aware of the software update issue on a few Mi A3 devices. On further investigation, we have identified it to be a technical issue due to which a software update not meant for Indian users, was shared inadvertently. This issue has been fixed already from our side and our technical teams are working on a recovery solution that will be rolled out soon.” – Xiaomi