OS: Mac OS Mavericks<\/p>\n
If you want to flash your Android 5 device with a new system image, you will more than likely need to unlock the bootloader. This is done by enabling the OEM unlock. <\/p>\n
You will need the developer’s SDK for the tools needed: https:\/\/developer.android.com\/sdk\/index.html<\/a><\/p>\n After you install the SDK, it will make things easier if you add the location of the tools needed to your PATH variable. Note: you will probably need to create the .bash_profile file. One does not exist by default in Mavericks.<\/p>\n $ cat ~\/.bash_profile Plug your phone in using the USB cable. Note: I have had some issues with different micro USB cables. I would use the one that came with phone if possible.<\/p>\n You can try the OEM unlock by issuing the following command. This did not work for me with a Nexus 6. Instead, I unlocked it from the Developer options.<\/p>\n \n$ fastboot oem unlock<\/p><\/blockquote>\n Enabling Developer options:<\/p>\n Go to “Settings” and then “About Phone”, and tap the firmware version several times. You will get a countdown for the number of taps to get you into Developer mode. Go back to “Settings” and notice that you now have a “Developers options” option. Select it and turn on OEM unlocking. You might have enter your phone unlock PIN and then confirm to enable.<\/p>\n Turn off the phone. Hold down volume button on the volume rocker and power button at the same time. This will put your phone into transfer mode. <\/p>\n Download the Android M preview system image from: https:\/\/developer.android.com\/preview\/download.html<\/a> Uncompress the downloaded shamu-MPZ44Q-preview-c1d6506a.tgz file by double clicking it in Finder.<\/p>\n Using Terminal go to the location where you saved and uncompressed the download. The directory will be called shamu-MPZ44Q. In that directory, unzip image-shamu-MPZ44Q.zip.<\/p>\n Install Android M:<\/p>\n .\/flash-base.sh Here is what the output should look like:<\/p>\n flash_base.sh:<\/p>\n $ .\/flash-base.sh recovery.img:<\/p>\n $ fastboot flash recovery recovery.img boot.img:<\/p>\n jimsmac:temp jgz$ fastboot flash boot boot.img system.img:<\/p>\n $ fastboot flash system system.img cache.img:<\/p>\n $ fastboot flash cache cache.img userdata.img:<\/p>\n $ fastboot flash userdata userdata.img reboot:<\/p>\n $ fastboot reboot finished. total time: 0.022s\n<\/p><\/blockquote>\n You can use the same procedure to downgrade your phone back to Lollipop using one of the downloads at https:\/\/developers.google.com\/android\/nexus\/images.<\/p>\n","protected":false},"excerpt":{"rendered":" OS: Mac OS Mavericks If you want to flash your Android 5 device with a new system image, you will more than likely need to unlock the bootloader. This is done by enabling the OEM unlock. You will need the developer’s SDK for the tools needed: https:\/\/developer.android.com\/sdk\/index.html After you install the SDK, it will make [&hellip<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1261","post","type-post","status-publish","format-standard","hentry","category-documentation"],"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=\/wp\/v2\/posts\/1261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1261"}],"version-history":[{"count":10,"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=\/wp\/v2\/posts\/1261\/revisions"}],"predecessor-version":[{"id":1280,"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=\/wp\/v2\/posts\/1261\/revisions\/1280"}],"wp:attachment":[{"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jim-zimmerman.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nexport PATH=$PATH:\/Users\/username\/Library\/Android\/sdk\/platform-tools <\/p><\/blockquote>\n
\nOther available system images for when you want to switch back: https:\/\/developers.google.com\/android\/nexus\/images<\/a><\/p>\n
\nfastboot flash recovery recovery.img
\nfastboot flash boot boot.img
\nfastboot flash system system.img
\nfastboot flash cache cache.img
\nfastboot flash userdata userdata.img
\nfastboot reboot\n<\/p><\/blockquote>\n
\ntarget reported max download size of 536870912 bytes
\nsending ‘bootloader’ (3807 KB)…
\nOKAY [ 0.187s]
\nwriting ‘bootloader’…
\n(bootloader) flashing partition …
\n(bootloader) This may take a few seconds if a
\n(bootloader) different partition table is being
\n(bootloader) flashed since we need to backup
\n(bootloader) and restore a few partitions
\n(bootloader) Flashing primary GPT image…
\n(bootloader) Flashing backup GPT image…
\n(bootloader) flashing aboot …
\n(bootloader) flashing sbl1 …
\n(bootloader) flashing rpm …
\n(bootloader) flashing tz …
\n(bootloader) flashing sdi …
\n(bootloader) flashing logo …
\nOKAY [ 0.358s]
\nfinished. total time: 0.545s
\nrebooting into bootloader…
\nOKAY [ 0.001s]
\nfinished. total time: 0.001s
\ntarget reported max download size of 536870912 bytes
\nsending ‘radio’ (67556 KB)…
\nOKAY [ 2.965s]
\nwriting ‘radio’…
\n(bootloader) flashing modem …
\n(bootloader) flashing mdm1m9kefs1 …
\n(bootloader) flashing mdm1m9kefs2 …
\n(bootloader) flashing mdm1m9kefs3 …
\n(bootloader) flashing versions …
\nOKAY [ 0.739s]
\nfinished. total time: 3.704s
\nrebooting into bootloader…
\nOKAY [ 0.001s]
\nfinished. total time: 0.001s<\/p><\/blockquote>\n
\ntarget reported max download size of 536870912 bytes
\nsending ‘recovery’ (8877 KB)…
\nOKAY [ 0.444s]
\nwriting ‘recovery’…
\nOKAY [ 0.118s]
\nfinished. total time: 0.562s<\/p><\/blockquote>\n
\ntarget reported max download size of 536870912 bytes
\nsending ‘boot’ (8161 KB)…
\nOKAY [ 0.406s]
\nwriting ‘boot’…
\nOKAY [ 0.087s]
\nfinished. total time: 0.493s<\/p><\/blockquote>\n
\ntarget reported max download size of 536870912 bytes
\nsending sparse ‘system’ (517183 KB)…
\nOKAY [ 31.545s]
\nwriting ‘system’…
\nOKAY [ 5.282s]
\nsending sparse ‘system’ (523718 KB)…
\nOKAY [ 32.352s]
\nwriting ‘system’…
\nOKAY [ 5.009s]
\nsending sparse ‘system’ (522246 KB)…
\nOKAY [ 31.508s]
\nwriting ‘system’…
\nOKAY [ 4.846s]
\nsending sparse ‘system’ (370015 KB)…
\nOKAY [ 23.730s]
\nwriting ‘system’…
\nOKAY [ 3.407s]
\nfinished. total time: 137.691s\n<\/p><\/blockquote>\n
\ntarget reported max download size of 536870912 bytes
\nerasing ‘cache’…
\nOKAY [ 0.035s]
\nsending ‘cache’ (6248 KB)…
\nOKAY [ 0.329s]
\nwriting ‘cache’…
\nOKAY [ 0.083s]
\nfinished. total time: 0.447s<\/p><\/blockquote>\n
\ntarget reported max download size of 536870912 bytes
\nerasing ‘userdata’…
\nOKAY [ 2.290s]
\nsending ‘userdata’ (138868 KB)…
\nOKAY [ 6.092s]
\nwriting ‘userdata’…
\nOKAY [ 2.058s]
\nfinished. total time: 10.440s<\/p><\/blockquote>\n
\nrebooting…<\/p>\n