Download Rom Flasher

Name: Rom Flasher
Availability: InStock
Author: Rom Flasher

One free Android app that flashes the other phone. This phone runs the tool, a USB-OTG cable joins the two, and the app handles fastboot, recovery and sideloading for you — no PC and no terminal.

Get the tool

The button always pulls the newest build published on GitHub, so you never have to go hunting for the latest file.

⬇ Download v1.2.0 for Android8.29 MB · Android 8.0+ · free, no sign-in Watch the step-by-step videos Release notes on GitHub

If your browser warns about installing an app from outside the Play Store, that is expected for a direct APK. Allow installs from your browser or file manager and continue.

Build facts

Latest versionv1.2.0
Released19 Oct 2026
Download size8.29 MB
Fileapp-release.apk
Runs onAndroid 8.0 or newer
PriceFree

SHA-256
C0507AB2E3334C8B7130B9F01FA954DAACF5598476EF0C0C4F36305323D8CCAD

What is inside

Flashing

Fastboot ROMs, straight from the .bat or .sh flash script
Sideload a ROM, GApps or Magisk from recovery
Custom images: boot, init_boot, super, vbmeta
Sparse-chunk engine for big 4–8 GB partitions
A/B slot manager, and a confirmation before anything risky

Tools & recovery

IMEI / EFS backup and restore
Kernel backup, restore and flash, plus a boot-loop rescue
Root wizard for KernelSU and Magisk
App installer for .apk, .xapk and .apkm
Debloater, file manager, full device info, live command terminal

Stock ROM downloader

Region-wise stock ROMs for Xiaomi, POCO, OnePlus, OPPO, realme, vivo / iQOO and Google Pixel
Recovery and fastboot packages from one picker
Parallel multi-segment downloads, fastest mirror picked for you, with failover
An IDM-style download popup so you can carry on using the app

Extras

Payload dumper with SHA-256 verification
ROM-wise backup picker
Video guides inside the app
Cancel an extraction at any point

How to install

Download the APK with the button above. It lands in your phone's Downloads folder.
Allow the install. Android will ask for permission to install apps from your browser or file manager — say yes, then install.
Open ROM Flasher and connect the target phone with a USB-OTG cable. The app shows the device as soon as fastboot sees it.
Pick what you want to do — flash a ROM, sideload a package, back up a kernel, or just check the device info first.

What you need

A phone to run the tool on: Android 8.0 or newer
A USB-OTG cable to reach the phone being flashed
An unlocked bootloader on the target phone for flashing jobs
Files built for your exact device codename — never guess

XiaomiPOCO RedmiOnePlus OPPOrealme vivo / iQOOGoogle Pixel Android 8.0+USB-OTG

The small things that make it work

Cables are the number one reason a phone never shows up in fastboot. These are the three I actually keep in the drawer.

USB-C OTG adapter

Turns your phone into the host. This is the little part that decides whether the tool can see the other phone at all.

Search on Amazon

USB-C to USB-C cable

For phones on both ends. Get one rated for data, not just charging — a charge-only cable is the usual reason a device never shows up in fastboot.

Search on Amazon

USB-A to USB-C cable

Still the most reliable cable in the drawer, and the one to keep if you also flash from a PC.

Search on Amazon

Those are plain search links, not sponsors — buy wherever it is cheapest for you.

Fresh in v1.2.0

This build is lighter and simpler than the first release: the download dropped by around 1.3 MB, and there is nothing to type in when you open the app — install it and use it. Everything else is the app you already know: flashing, tools, the stock ROM downloader and backups.

Questions people ask

Is Rom Flasher really free?

Yes. The free Rom Flasher tool costs nothing — no sign-in, nothing to type in, and no version you have to buy.

Does it need a computer?

No. It runs on the phone itself and drives the other phone over a USB-OTG cable, so you can flash without sitting at a PC.

Which phones does it work with?

Anything with an unlocked bootloader that speaks fastboot — Xiaomi, POCO, Redmi, OnePlus, OPPO, realme, vivo and iQOO, Google Pixel and more.

Which Android version do I need?

Android 8.0 or newer on the phone that runs the tool.

How big is the download?

About 8.3 MB. Installing a newer build on top of an older one keeps your data and settings, because every release is signed with the same key.

Will I lose my data?

Unlocking the bootloader and flashing firmware usually wipe the phone. Take a backup first, and only flash files built for your exact device codename.

Before you flash

Flashing firmware is risky. Back up first, keep a way to recover, and only flash files built for your exact model. Rom Flasher is not affiliated with Xiaomi, POCO, Redmi, Google or any ROM project, and you flash at your own risk — the terms spell that out.

Did it save your evening?

Then the tool did exactly what it was built for. If you feel like saying thank you, here are the same two links the app shows on its own Donate screen. Both are completely optional — and both keep the free Rom Flasher tool free for the next person who needs it.

In India — UPI

Point any UPI app at the code, or copy the ID below. You choose the amount; even a coffee is a big deal.

romflasher@naviaxis

Anywhere else — PayPal

Any currency, any amount. It opens on PayPal's own page, so nothing sensitive ever touches this site.

Donate with PayPal

These are the same two links the app shows on its Donate screen — one for India, one for everywhere else.

Tell me what happened

Did a flash go sideways? Want a guide for a phone that is not here yet? A feature you keep wishing the app had? Type it below and it comes straight to my inbox — no account, no sign-in, nothing to install. I read every message and it genuinely decides what I build and film next.