mobile-nixos

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Samuel Dionne-Riel f1c1338a43 sony-pioneer: Normalize kernel config		2023-01-27 20:02:08 -05:00
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kernel	sony-pioneer: Normalize kernel config	2023-01-27 20:02:08 -05:00
default.nix	sony-pioneer: Identify device for flashable zips	2021-02-28 15:53:12 -05:00
misc.json	sony-pioneer: Import autoport data	2020-09-27 23:23:31 -04:00
oem_props.json	sony-pioneer: Import autoport data	2020-09-27 23:23:31 -04:00
README.adoc	Solution for USB3 flashing issue	2020-11-22 19:26:40 -05:00

README.adoc

= Sony Xperia XA2
include::_support/common.inc[]

== Device-specific notes

=== Fastboot

This device has a quirky way to get to fastboot.

* You have to have the device connected to a computer, or else it will not activate fastboot mode.
* Fastboot shows nothing on the display

With the phone connected to a computer, hold volume up and *somehow* cause a
reboot (from the system, or by holding power to force reset).

Alternatively, from a powered-off state, hold volume up and connect to your
computer.

Finally, you can always trigger a reboot to bootloader via software. From
within Mobile NixOS, `sudo reboot bootloader`, or from an Android-based system
using `adb reboot bootloader` or equivalent methods.

Note that the LED will light up blue when in fastboot mode.

=== Failure to `fastboot flash`

It is possible that you might run into issues with this device when connected to a USB3 port with a USB3 cable. If that happens:

. Check if there is a USB2 port on your computer or on the USB hub you are using. Connect your phone to the USB2 port for flashing instead.
. If your USB hub only has USB3 ports, then connect the hub to PC with a USB2 data cable, and XA2 to the hub with any USB data cable ("USB Type-C" in the XA2 end).
. If there are only USB3 ports available, you can force your USB3 ports to USB2 mode.

==== Forcing USB3 ports to USB2 mode

The following commands will force all USB3 ports to USB2 mode temporarily.

----
 $ nix-shell -p pciutils
 [nix-shell:~]$ lspci -nn | grep USB | cut -d '[' -f3 | cut -d ']' -f1 | xargs -I@ sudo setpci -H1 -d @ d0.l=0
----

After which hopefully the procedure works. After successfully flashing, restart your computer to bring the USB3 ports to their normal mode.

Alternatively, the following commands can be used to revert the change.

----
 $ nix-shell -p pciutils
 [nix-shell:~]$ lspci -nn | grep USB | cut -d '[' -f3 | cut -d ']' -f1 | xargs -I@ sudo setpci -H1 -d @ d0.l=1
----

See also:

* https://jolla.zendesk.com/hc/en-us/articles/360012031854-Flashing-Sailfish-to-Xperia-XA2-fails-Troubleshooting-