solar_cluster/a5y17lte/flashing.md

• Follow setup.md, but instead build android recovery image: pmbootstrap install --android-recovery-zip and then pmbootstrap export

• Download TWRP for a5y17lte - https://eu.dl.twrp.me/a5y17lte/twrp-3.7.0_9-0-a5y17lte.img.html

• Get heimdall from Lineage (https://wiki.lineageos.org/devices/a5y17lte/install/#preparing-for-installation)

• Follow Lineage guide, I found that the new heimdall only worked when i reversed the usb-c cable, I was then able to reboot into Download mode and test it worked with heimdall print-pit

• Go back into Download mode with Volume Down + Home + Power

  • heimdall flash --RECOVERY twrp-3.7.0_9-0-a5y17lte.img --no-reboot
  • Manually reboot with Volume Down + Power button
  • As soon as it turns off then boot up with Volume Up + Home + Power
  • As soon as you see the TWRP icon can release the buttons

• Once TWRP booted Swipe To Allow Modifications

• You can now use adb shell to get access to the device

  • Run twrp sideload on the shell
  • The shell will exit and you can then side load the recovery zip adb sideload pmos-samsung-a5y17lte.zip
  • This will send the zip across and install it
  • adb reboot

• As postmarketos boots you'll see it display the splash screen and also it should automatically setup usbnet and you'll then be able to ssh in.