Install crDroid 10 for Galaxy A20

Flashing instructions

Prerequisites

• Your Samsung Galaxy A20
• This will NOT work on the A20e or A20s
• USB-C cable that can do data transfer
• A computer running Windows XP or later
• A MicroSD card that's at least 2GB

Unlocking bootloader

This WILL factory reset your phone. Back up any data before continuing.

• Open Settings, and go to About phone -> Software information
• Tap "Build number" 7 times
• Go back, then select "Developer options"
• Enable "OEM unlocking", and press "Enable" on the warning (if the OEM unlocking option doesn't exist, your phone is not unlockable, likely it was purchased from a carrier like Verizon that restricts unlocking so you cannot continue).
• Turn off the phone
• Hold down volume down and volume up, and while doing this, plug the phone into your computer.
• Once the Warning screen appears, let go of all buttons.
• Hold down volume up until it says "Unlock bootloader?", then press volume up again.

Installing TWRP

You will have to install Odin and the Samsung USB drivers on a computer, which requires Windows XP or later.

• Turn the phone off
• Hold down volume down and volume up and plug the phone into your computer.
• When the Warning screen appears, let go of all buttons.
• Press volume up to enter download mode.
• Get twrp-3.7.0_9-0-a20.img.tar from https://twrp.me/samsung/samsunggalaxya20.html.
• Open Odin, and select the tar file you just downloaded for AP.
• Go to "Options", and verify "Re-Partition" is unchecked. Having it checked may result in a brick.
• Press "Start"
• When it finishes, your phone will reboot back into download mode.
• Download https://xdaforums.com/attachments/samsung_vbmeta-tar.5065877, select that file for AP, and press start again.
• When the phone reboots, hold down volume up and power until it boots into TWRP

Installing crDroid

• Download the latest crDroid build from download page
• Copy the file to a MicroSD card (ADB sideload doesn't work on some A20's for whatever reason, so it is recommended to use a MicroSD to install crDroid).
• Insert the SD card into your phone.
• In TWRP, press "Wipe", then "Advanced Wipe"
• Select "System", "Data", "Cache", and "Dalvik / ART Cache"
• Swipe to wipe
• Go back to TWRP's main menu
• Press "Install" in TWRP
• Go to "Select Storage", and pick "Micro SD Card"
• Select the crDroid zip
• Swipe to install, and wait several minutes for it to install
• If wanted, you can also install GApps.

Require support?