adb reboot bootloader
と実行するとfastbootが起動する。
fastbootコマンドの実行結果：
PS C:\Windows\system32> fastboot devices 0L0V060229 fastboot PS C:\Windows\system32> fastboot getvar all (bootloader) max-download-size: 0x8000000 (bootloader) variant: (bootloader) logical-block-size: 0x200 (bootloader) erase-block-size: 0x0 (bootloader) hw-revision: 0 (bootloader) battery-soc-ok: yes (bootloader) battery-voltage: 3500mV (bootloader) partition-size:userdata: 2e407be00 (bootloader) partition-type:userdata: f2fs (bootloader) partition-size:cache: 40000000 (bootloader) partition-type:cache: ext4 (bootloader) partition-size:factory: 1000000 (bootloader) partition-type:factory: ext4 (bootloader) partition-size:vendor: 19000000 (bootloader) partition-type:vendor: ext4 (bootloader) partition-size:system: 54400000 (bootloader) partition-type:system: ext4 (bootloader) partition-size:vbmeta: b40000 (bootloader) partition-type:vbmeta: raw data (bootloader) partition-size:metadata: 2000000 (bootloader) partition-type:metadata: raw data (bootloader) partition-size:dkb: 200000 (bootloader) partition-type:dkb: raw data (bootloader) partition-size:kb: 200000 (bootloader) partition-type:kb: raw data (bootloader) partition-size:tee2: 500000 (bootloader) partition-type:tee2: raw data (bootloader) partition-size:tee1: 500000 (bootloader) partition-type:tee1: raw data (bootloader) partition-size:nvdata: 2000000 (bootloader) partition-type:nvdata: raw data (bootloader) partition-size:frp: 100000 (bootloader) partition-type:frp: raw data (bootloader) partition-size:expdb: a00000 (bootloader) partition-type:expdb: raw data (bootloader) partition-size:dtbo: 800000 (bootloader) partition-type:dtbo: raw data (bootloader) partition-size:logo: 800000 (bootloader) partition-type:logo: raw data (bootloader) partition-size:para: 80000 (bootloader) partition-type:para: raw data (bootloader) partition-size:recovery: 1000000 (bootloader) partition-type:recovery: raw data (bootloader) partition-size:boot: 1000000 (bootloader) partition-type:boot: raw data (bootloader) partition-size:lk2: 100000 (bootloader) partition-type:lk2: raw data (bootloader) partition-size:lk: 100000 (bootloader) partition-type:lk: raw data (bootloader) partition-size:seccfg: 40000 (bootloader) partition-type:seccfg: raw data (bootloader) partition-size:nvcfg: 800000 (bootloader) partition-type:nvcfg: ext4 (bootloader) partition-size:persist: 3000000 (bootloader) partition-type:persist: ext4 (bootloader) partition-size:protect2: a00000 (bootloader) partition-type:protect2: ext4 (bootloader) partition-size:protect1: a00000 (bootloader) partition-type:protect1: ext4 (bootloader) partition-size:nvram: 500000 (bootloader) partition-type:nvram: raw data (bootloader) partition-size:cam_vpu3: f00000 (bootloader) partition-type:cam_vpu3: raw data (bootloader) partition-size:cam_vpu2: f00000 (bootloader) partition-type:cam_vpu2: raw data (bootloader) partition-size:cam_vpu1: f00000 (bootloader) partition-type:cam_vpu1: raw data (bootloader) partition-size:boot_para: 100000 (bootloader) partition-type:boot_para: raw data (bootloader) partition-size:proinfo: 300000 (bootloader) partition-type:proinfo: raw data (bootloader) partition-size:preloader: 40000 (bootloader) partition-type:preloader: raw data (bootloader) serialno: 0L0V060229 (bootloader) off-mode-charge: 1 (bootloader) warranty: yes (bootloader) unlocked: no (bootloader) secure: yes (bootloader) kernel: lk (bootloader) product: a05bd (bootloader) slot-count: 0 (bootloader) version-baseband: N/A (bootloader) version-bootloader: a05bd-73327e0-20200804094052-2020110410 (bootloader) version-preloader: 0.1.00 (bootloader) version: 0.5 all: Done!! Finished. Total time: 0.277s PS C:\Windows\system32> fastboot flashing unlock (bootloader) Start unlock flow FAILED (remote: ' Unlock operation is not allowed ') fastboot: error: Command failed PS C:\Windows\system32> fastboot oem ULTRAFLASH_en FAILED (remote: 'unknown command') fastboot: error: Command failed PS C:\Windows\system32> fastboot oem ultraflash:boot FAILED (remote: 'not allowed in locked state') fastboot: error: Command failed PS C:\Windows\system32> fastboot flash boot "C:\Users\***\Downloads\magisk_patched-23000_QNEtr.img" Sending 'boot' (16384 KB) OKAY [ 0.702s] Writing 'boot' FAILED (remote: 'not allowed in locked state') fastboot: error: Command failed PS C:\Windows\system32> fastboot oem unlock FAILED (remote: 'unknown command') fastboot: error: Command failed PS C:\Windows\system32> fastboot oem disable_dm_verity FAILED (remote: 'unknown command') fastboot: error: Command failed PS C:\Windows\system32> fastboot flashing unlock_critical (bootloader) Start unlock flow FAILED (remote: ' Unlock operation is not allowed ') fastboot: error: Command failed PS C:\Windows\system32> fastboot update "C:\Users\***\Downloads\update.zip" -------------------------------------------- Bootloader Version...: a05bd-73327e0-20200804094052-20201104102005 Baseband Version.....: N/A Serial Number........: 0L0V060229 -------------------------------------------- archive does not contain 'android-info.txt' fastboot: error: could not read android-info.txt PS C:\Windows\system32> PS C:\Users\***> fastboot oem keystore FAILED (remote: 'argument size is wrong ') fastboot: error: Command failed PS C:\Users\***> fastboot oem key FAILED (remote: 'argument size is wrong ') fastboot: error: Command failed PS C:\Users\***> fastboot oem p2u on OKAY [ 0.003s] Finished. Total time: 0.006s PS C:\Users\***> fastboot oem p2u off OKAY [ 0.003s] Finished. Total time: 0.004s PS C:\Users\***> fastboot oem p2u on OKAY [ 0.003s] Finished. Total time: 0.004s PS C:\Users\***> fastboot oem key FAILED (remote: 'argument size is wrong ') fastboot: error: Command failed