Flash, back up and restore kernel images on rooted devices. Every step asks for confirmation, flashing can auto-backup first, and a one-tap rollback is always available.
ReKernelFlasher is an Android kernel flashing tool: it flashes, backs up and restores kernel images on rooted devices, while keeping the odds of a bad flash as low as possible.
It is a fork of KernelFlasher, maintained by Bacillusf. The original is not very beginner-friendly — no confirmation dialogs, easy to flash the wrong partition — and many people never make backups, so one mistake means waiting for a full OTA package. The original repository is archived, so this fork exists.
So this project focuses on two things: making every step explicit, and auto-backing up before every flash so you can roll back afterwards.
Model, build version, Android version, kernel version, root manager (KernelSU / Magisk / APatch), slot suffix, SUSFS and Boot HAL versions — all on one screen.
View A/B slot info: bootable state, marked-successful flag, boot SHA1, image format and ramdisk info.
Pick an AnyKernel3-compatible zip and flash it. An mkbootfs mode is also available, as is flashing the KernelSU driver.
Pick a .img file and flash it to the chosen partition. The source path and target partition are shown first, with a confirmation dialog.
Back up a chosen partition to local storage and restore from backup history. Auto backup can dd the target partition before flashing.
Reboot to system / Recovery / Bootloader / Download / EDL, each with its own confirmation dialog.
Persisted to /sdcard/KernelFlasher/history.json, recording every flash / backup / reboot operation.
Payload-Dumper unpacking, full partition backup, Diag port, wireless debugging, RKP repair and RKPConfig remote key provisioning.
Configure Android Remote Key Provisioning (RKP): read/write system properties, renew provisioning, check status, generate CSRs and verify certificates.