Redmi K40 Pro haydn
Official Redmi K40 Pro stock firmware — flash file, stock ROM & IMEI repair file, free direct download.
Also known as POCO F3 Pro, Mi 11i — same device, same firmware.
The Redmi K40 Pro (model code haydn) has 246 official stock firmware files (flash file / stock ROM) available for free download on ROM Palace — the latest released in Nov 2025. 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 K40 Pro to its original factory software.
Redmi K40 Pro stock firmware & flash files (246)
Showing the newest 30 of 246 firmware files — at least two builds per region and ROM type. See all 246 versions →
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Frequently asked questions
How do I flash the Redmi K40 Pro stock firmware?
Download the stock ROM / flash file for your exact Redmi K40 Pro (haydn), 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 K40 Pro firmware?
Flashing official stock firmware is safe as long as you use the correct stock ROM / flash file for your exact model code (haydn). Flashing the wrong firmware can brick the device, so always confirm the model code before flashing.
Are these Redmi K40 Pro ROM downloads free?
Yes. Every Redmi K40 Pro firmware file on ROM Palace is free to download with a direct link — no subscription and no waiting queue.
What problems can Redmi K40 Pro 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 K40 Pro to its original factory software.
What are the other names for the Redmi K40 Pro?
The Redmi K40 Pro is also sold and known as POCO F3 Pro, Mi 11i in different regions and markets. They are the same device (codename haydn), so the same stock firmware, flash files and stock ROMs apply to all of them.
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