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  • Cracked screen, best way to wipe?

I should of emphasized the part of the question without any screen confirmations? as I can't see the screen ;)

But thanks, that'll do fine!

I just found that I cannot carry out erase commands without the phone being unlocked.

Anyone have any ideas on the best practices to wipe it?

    dairymilkbatman I think you can do it manually using the power and volume buttons.

    1. Start with phone powered off
    2. Hold power button and volume down to boot into bootloader interface
    3. Press volume down button twice
    4. Press power button once to boot into recovery mode
    5. Wait 20 seconds for phone to boot, you will now hopefully be in recovery mode

    Inside recovery mode it will be possible to factory reset.

    Let me check the key combinations for factory reset in recovery mode...

      treequell

      1. Hold power button and press volume up button once to display recovery mode GUI
      2. Press volume down button four times
      3. Press power button once to select 'wipe data/factory reset'
      4. Press volume down button once
      5. Press power button once to confirm factory reset
      6. Wait for phone to factory reset, not sure if it automatically reboots or goes back to recovery mode after. If goes back back to recovery mode, just press power button once to reboot

      Hopefully that'll get you on your way to a factory reset. Not sure how easy it'll be without the screen. It it is theoretically possible.

      If not, get somebody to replace your screen. The official Google Repair service closest to me charges $130.

      I tried the fastboot erase userdata with my old sony Xperia xa2 with broken screen. I put it into fastboot mode (usb connection), open a terminal on my Linux Desktop, type 'fastboot erase userdata' and I need no confirmation on the broken screen of my device. 'fastboot erase cache' does not work.
      Unfortunatly it works only with usb debugging on and if the device is already authorized with/on your desktop OS. But since you asked for a fastboot command I thought this was checked.

      dairymilkbatman I just found that I cannot carry out erase commands without the phone being unlocked.

      Anyone have any ideas on the best practices to wipe it?

      When you're in bootloader mode, try running "fastboot flashing unlock". If you didn't specifically go back into developer options and disable bootloader unlocking from there, then that command should work, and bonus is that running the unlock will initiate a wipe.

        dairymilkbatman

        Since you have two phones available both running GrapheneOS, one with smashed screen and one without, i suggest the following:

        You do the steps I gave to factory reset on your device without the smashed screen. At each step replicate the exact same action in the device with the smashed screen. The first phone is just used for reference so you can see what you are doing on the second.

        When you get to the final step of wiping the data perform only on the device with the smashed screen.

        Et voilĂ  !