2021 — Twrp 3021

One specific reason this version lingered was its compatibility with deep sleep modes on older hardware. Some updated recoveries had bugs that prevented devices from sleeping properly, causing battery drain. 3.0.2.1 didn't have these issues on legacy hardware, making it the preferred choice for daily drivers that couldn't afford the battery hit.

Restore:

Install ZIP (mods, SuperSU/Magisk, custom kernels):

ADB Sideload:

Mounting partitions & file transfer:

Wipe:

adb reboot bootloader
fastboot flash recovery twrp-3.0.2-1-devicecode.img
fastboot reboot

Immediately after rebooting, hold Volume Up + Power to boot into recovery before the system overwrites it. twrp 3021 2021

If you permanently installed TWRP on an A/B device and it keeps asking for a password or doesn't show your internal storage: One specific reason this version lingered was its

If you are hunting for "twrp 3021 2021" because you found an old device in a drawer, here is the safest installation path. Restore:

Warning: Do not flash a 3.0.2-1 image on a device newer than 2018. It will brick your recovery partition.