Difference between revisions of "PinePhone Pro"
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=== Boot order === | === Boot order === | ||
On the '''PinePhone Pro''' the '''eMMC''' (the internal storage of the phone) has a '''''higher boot priority''''' than the '''microSD card''' (see [[RK3399 boot sequence#Boot sequence details | RK3399 boot sequence details]]). That behavior is in contrast to the original '''PinePhone''' with the Allwinner A64 SoC, where the '''microSD card''' has a '''''higher boot priority''''' than the internal storage. | On the '''PinePhone Pro''' the '''eMMC''' (the internal storage of the phone) has a '''''higher boot priority''''' than the '''microSD card''' (see [[RK3399 boot sequence#Boot sequence details | RK3399 boot sequence details]] for details regarding the boot sequence). That behavior is in contrast to the original '''PinePhone''' with the Allwinner A64 SoC, where the '''microSD card''' has a '''''higher boot priority''''' than the internal storage. | ||
The '''Explorer Edition''' comes with a modified U-Boot pointing to the microSD card pre-installed to the eMMC. The microSD card can be (temporarily) booted instead of the pre-installed operating system, when the power key is shortly held at boot. To always boot from the microSD card it is recommended to wipe U-Boot from the eMMC. When the pre-installed bootloader was overwritten with a bootloader without such a configuration, the ''RE'' button underneath the back cover of the phone can also be used to temporarily bypass the eMMC. The button may however only be pressed shortly for a few seconds during boot, otherwise the eMMC won't be initialized in the operating system. | |||
The '''Explorer Edition''' comes with a modified U-Boot pre-installed to the eMMC | |||
The '''Developer Edition''', which was an earlier revision intended for development, was coming with an Android factory OS preinstalled. For details regarding how to remove the bootloader and the preinstalled OS of the eMMC for Developer Edition, please see the relevant wiki [[PinePhone Pro Developer Edition#Nuking the factory AOSP installation|article]]. The eMMC on the Developer Edition can be bypassed by shorting two specific contact points, please join the community chat for any questions regarding the process. | |||
The '''Developer Edition''', which was an earlier revision intended for development, | |||
=== Installation instructions === | === Installation instructions === | ||
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# Flash the extracted image using <code>sudo dd if='''IMAGE.img''' of=/dev/mmcblk2 bs=1M status=progress conv=fsync</code> | # Flash the extracted image using <code>sudo dd if='''IMAGE.img''' of=/dev/mmcblk2 bs=1M status=progress conv=fsync</code> | ||
# Reboot the phone | # Reboot the phone | ||
==== Bypassing the eMMC ==== | |||
The pre-installed bootloader of the operating system the '''Explorer Edition''' came with can boot the microSD card when holding the power button at boot for a few seconds. If that doesn't work (because for example the bootloader got corrupted or is configured otherwise in a new installation) the eMMC can '''always''' be temporarily bypassed at boot to be able to boot from microSD card: | |||
On the '''Explorer Edition''' hold the ''RE'' button underneath the cover for a few seconds, while powering on the device (holding it too long will cause the eMMC to not get initialized after the boot). | |||
On the '''Developer Edition''' short the eMMC bypass contacts while booting. | |||
For details see the section [[PinePhone Pro#Boot order|boot order]]. | |||
==== Wipe U-Boot from the eMMC ==== | ==== Wipe U-Boot from the eMMC ==== |