doc:appunti:hardware:xiaomi_mi_a1
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doc:appunti:hardware:xiaomi_mi_a1 [2020/03/26 08:58] – [March 2020 security update] niccolo | doc:appunti:hardware:xiaomi_mi_a1 [2020/09/23 17:06] (current) – [August 2020 security update] niccolo | ||
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^ Internal Memory | ^ Internal Memory | ||
^ CPU | Qualcomm Snapdragon 625 2.0GHz 8-core | ^ CPU | Qualcomm Snapdragon 625 2.0GHz 8-core | ||
+ | ^ Architecture | ||
^ Screen | ^ Screen | ||
^ Connector | ^ Connector | ||
Line 389: | Line 390: | ||
Once rebooted the phone into normal system, I installed the root permissions manager: **MagiskManager-v7.5.1.apk**. | Once rebooted the phone into normal system, I installed the root permissions manager: **MagiskManager-v7.5.1.apk**. | ||
+ | |||
+ | ===== August 2020 security update ===== | ||
+ | |||
+ | This is a new update from Xiaomi, still featuring **AndroidOne v.9** relase, build **PKQ1.180917.001.V10.0.24.0.PDHMIXM**. The upgrade was downloaded nightly over the WiFi. It seems impossibile to prevent such automatic download: I did not find any settings to prevent automatic upgrade download. After downloading, | ||
+ | |||
+ | The starting conditions were: | ||
+ | |||
+ | * A/B System Updates status: **Current Slot: ?** (may be it was **A**, because after installation it is **B**). | ||
+ | * Bootloader is **unlocked**. | ||
+ | * **Magisk** and **TWRP** were installed, but may be they were hidden by accident. Infact the installation of the upgrade went OK after a reboot, whereas it should fail because the boot sector is tampered with **Magisk su**. | ||
+ | * **System partition** was the stock one: root privileges were never used to tamper the **/system** hierarchy. | ||
+ | |||
+ | After the upgrade, I did the following to get **root again**: | ||
+ | |||
+ | * adb reboot bootloader | ||
+ | * fastboot boot twrp-3.3.0-2-tissot.img | ||
+ | * Verified from TWRP => Reboot: **Current slot: B** | ||
+ | * adb pull / | ||
+ | * adb pull / | ||
+ | * TWRP ⇒ Install ⇒ **twrp-installer-3.3.0-2-tissot.zip**\\ Running boot image patcher on slot a and b. | ||
+ | * system reboot | ||
+ | * adb reboot bootloader | ||
+ | * fastboot boot twrp-3.3.0-2-tissot.img | ||
+ | * TWRP ⇒ Install ⇒ **Magisk-v20.4.zip**\\ Current boot slot: _b, unpacking, patching, repacking, flashing new boot image. | ||
+ | |||
===== Web References ===== | ===== Web References ===== | ||
doc/appunti/hardware/xiaomi_mi_a1.1585209536.txt.gz · Last modified: 2020/03/26 08:58 by niccolo