Official Redmi K40S stock firmware — flash file, stock ROM & IMEI repair file, free direct download.
Also known as POCO F4 — same device, same firmware.
Android 14300 ROMs
Model codemunch
Quick answer
The Redmi K40S (model code munch) has 300 official stock firmware files (flash file / stock ROM) available for free download on ROM Palace — the latest released in Jun 2026. Each download is a direct, resume-supported link used to unbrick the phone, fix a bootloop, remove FRP, repair a corrupt or null IMEI, downgrade, or restore the Redmi K40S to its original factory software.
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Redmi K40S stock firmware & flash files (300)
Showing the newest 36 of 300 firmware files — at least two builds per
region and ROM type. See all 300 versions →
Heads up. Redmi firmware is downloaded directly from the official
Redmi / manufacturer servers — we index it so you can find the right build fast.
Flashing can void your warranty or brick your device; proceed at your own risk and back up first.
Review links open on third-party sites. ROM Palace is not affiliated with them and hosts no copied review content.
Frequently asked questions
How do I flash the Redmi K40S stock firmware?
Download the stock ROM / flash file for your exact Redmi K40S (munch), extract the archive, then flash it with SP Flash Tool (SPFT) for MediaTek (MTK) devices, or the SPD Upgrade / ResearchDownload tool for Unisoc/Spreadtrum (SPD) chipsets. Back up your data first and charge the battery above 50%. See our step-by-step flashing guide for details.
Is it safe to flash Redmi K40S firmware?
Flashing official stock firmware is safe as long as you use the correct stock ROM / flash file for your exact model code (munch). Flashing the wrong firmware can brick the device, so always confirm the model code before flashing.
Are these Redmi K40S ROM downloads free?
Yes. Every Redmi K40S firmware file on ROM Palace is free to download with a direct link — no subscription and no waiting queue.
What problems can Redmi K40S stock firmware fix?
Stock firmware fixes bootloops, a device stuck on the logo, software crashes, failed OTA updates, can remove FRP, repair a corrupt or null IMEI, and restore the Redmi K40S to its original factory software.
What are the other names for the Redmi K40S?
The Redmi K40S is also sold and known as POCO F4 in different regions and markets. They are the same device (codename munch), so the same stock firmware, flash files and stock ROMs apply to all of them.
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