29 Mi Band 2 Firmware Update
Andreas Shimokawa edited this page 4 years ago


This feature has the potential to brick your Mi Band 2! That said, this has never happened to any of the developers, but remember you're doing this at your own risk.

Getting the firmware

Since we may not distribute the firmware, you have to do a little work. You need to find and download a Mi Fit APK file. There is an APK Mirror Web site that might help you find Mi Fit. Extract the downloaded .apk file with "unzip", and you will find an assets/ directory containing *.fw files, among others.

Choosing the right firmware version for your Model

Device Name HW Revisions *.fw file
Mi Band 2 V0.1.3.2 V0.1.3.3 V0.1.3.4 Mili_pro.fw
Mi Band 2 V0.9.3.3 V0.9.3.4 Mili_pro_tph.fw
Mi Band 2 V0.16.2.2 Mili_pro_tph_as7000.fw
Mi Band 2 ? Mili_pro_tph_indian.fw
Mi Band HRX ? Mili_pro_i.fw

Installing the firmware

Copy the desired Mi Band firmware as a *.fw file to your Android device and open it from any file manager on that device. The Gadgetbridge firmware update activity should then be started and guide you through the installation process.

Important: Mi Band 2 upgrades from 1.0.0.* firmware versions to newer versions (>1.0.1.* ) require to upgrade to an intermediate firmware version first. This intermediate version is and is included in all Mi Fit APKs that supply such newer firmware. Besides the Mili_pro.fw file there will also be the file Mili_pro_53.fw. Install the latter before installing the Mili_pro.fw file.

Note 1: Both upgrade and downgrade of firmware versions is possible.

Starting with Firmware version the Mi Band 2 supports text and special icon notifications. In order to get it working you need to have Gadgetbridge version >=0.18.0 and install the font files after installing the corresponding firmware file. These font files are located in the same directory as the firmware files and named Mili_pro.ft* (currently Mili_pro.ft and Mili_pro.ft.en). The installation process is the same as with the firmware file.

Note 2: Text and special icon support is still under development and has currently limited functionality.

Note 3: After flashing some firmware versions the first time coming from prior versions you have to remove the pairing in Android Bluetooth settings, then press the + button in Gadgetbridge to pair again. Do this if you have problems connecting after a firmware update, you wont lose any data.

Mi Band 2 (original version) firmwares

0.0.0 series

fw ver MiFit ver tested known issues fw-md5 2.0.0 no ? 67e54bc888373b45a6867c7b49bb7d8c 2.0.5 no ? f5dd9cb05b17a2031e3d0578416d4cd9 2.0.10 no ? bb763022f82b4528b465e76eb61860ec

1.0.0 series

fw ver MiFit ver tested known issues fw-md5 2.1.0 no ? e92c1d40691322f0a4fa718a150a4c32 2.1.3 no ? e1a4a2650366d9ba1e428a822dee014f 2.1.5 no ? bed62211776a5623767d51861d8b71a1 2.1.6 no ? dd7c055415d41fcc567ea783b70f0319 2.1.9 yes ? a98ee8d6a04b3bb4aff472e2cc91c21b 2.2.4 yes ? abdd122897234f40b556f775ba0b9dc2

1.0.1 series

fw ver MiFit ver tested known issues fw-md5 2.2.8 no ? d3d9d3d1cf7d227acba9a0be2015f61b 2.2.9 yes ? 804903543b7958c1b4f9b5c0e420bcb5 2.2.12 yes ? 3ae6d0abe06006fbcf0d1685ad8231bb 2.3.0 yes ? 470641716d9e63115b839cb38eaafce7 2.4.0 no ? 045edd2b2df5876f777a14eb3bc29966 2.4.2 no ? e7ecb89b71236452c1bf4a89521bc30a 3.0.5 yes ? 42197ff93b9f4b0c6c9eee2b5b2308f5 3.1.0 yes ? fa69dceb28458d99a905583ee2f8e2ef 3.1.5 no ? c3b771a7279fd6d8d361aecb7a91f051 3.1.9 no ? ddf32cd76409828bc15216b8f5eed3e2 3.2.1 yes ? 8652a310283ed3fb52b4f44bc3d387e8 3.3.1 yes ? d17a4d0bc4f1a3df3c903366396c230f

Mi Band 2 (tph) firmwares

1.0.1 series

fw ver MiFit ver tested known issues fw-md5 2.2.12 no ? 921b558eb0764280d070322b3e92c920 2.3.0 no ? bd773efaa1c40096bea6509ead7610c1 2.4.0 no ? 9ed679eacfbd978fd8a28d82fd31e688 3.0.0 no ? 85b8b60b5e58d022c2d492178ed129cd 3.0.6 yes ? 2aad5d32fa58b1d753139da6c88dc2d6 3.1.9 no ? 9a42733b1b053182ed2d9758d14d96c0 3.2.1 yes ? f290f8390bea7a1abd0af4018299b44c 3.3.1 no ? 932b980b70a90ecb97b29c7fbfe8438a

Mi Band 2 (tph_as7000) firmwares

1.0.1 series

fw ver MiFit ver tested known issues fw-md5 3.0.5 no ? 541d7fc6525a6cafa8c6ef224765f39e 3.1.9 no ? 5f4e939a32dc3cf50f3564a827c60100 3.2.1 yes ? 3199c3c3eaf14316ec7a9b35eb0baa74 3.3.1 no ? 70174d598811ed28de818358515418f3

Mi Band 2 (tph_indian) firmwares

1.0.1 series

fw ver MiFit ver tested known issues fw-md5 3.0.0 no ? f55cf0c4d28b07ddaae94aa65c5715e4 3.0.2 no ? 19cfc77a37ae235052bfbc1be792e174 3.0.4 no ? abd38ca3231aa2eb61ef574f7f2c60ff no ? e08b3632fa0ace7fbfad4fc43b425df6 3.3.1 no ? aeea9e3e8997922b1cea843838be7987

Mi Band HRX firmwares

1.0.1 series

fw ver MiFit ver tested known issues fw-md5 3.0.0 no ? 27af1c31d6dda4fa3a7d1eed30870a17 3.0.2 no ? 5c7bb03511fffccac5b14ace21c492f5

Original Mi Band 2 Firmware 1.0.x.x (old table)

Version / Function
recommended yes yes no no yes yes yes yes yes no no
alarms work work work ? work work work (no smart alarms) ? work work (smart alarms partly?) work (smart alarms partly?)
notifications work work work ? work work work work work work work
activity recognition no deep sleep[1] no deep sleep[1] no deep sleep[1] no deep sleep[1] works works works ? works works works
text and special icon notifications partial partial partial ? partial partial partial no no no no
heart rate measurement works works works ? works works works works works stopped working at some point (known firmware issue, not GB-related) ?
Gadgetbridge FW installer no. 47364 32121 50471 ? 3929 51770 32450 49197 41899 ? ?
CRC32 ? 4c44ea29 26913267 ? 80f6ccbe 01d1ef2d ? ? 68efecd7 ? ?
Mi Fit APK version 3.1.0 3.0.5 3.0.4-2.4.2 >2.4.0 2.3.0 2.2.12 2.2.9 >2.2.0 2.2.0 ? ?

[1]: deep sleep detection does not work properly with Gadgetbridge, see https://github.com/Freeyourgadget/Gadgetbridge/issues/686#issuecomment-343773224