So ,I think that You have to install Stock Recovery again. Lot of people suffering this problem they don’t know how to delete Pattern Lock from their phones. If you use any third party app to set Pattern Lock then Uninstall it first. If you does not use any app then you may have been set it through the phone setting.

• The download file contains the USB driver, Flash Tool and the stock ROM file.
• Xiaomi Redmi 6 Global history Fastboot ROM MIUI 9.5.16, Weekly android 8.1 firmware of cereus.
• Xiaomi Redmi Note 6 Pro (tulip) Global official ROM, include stable, weekly and beta MIUI firmware which can be updated with Recovery and Fastboot (need mi flash tool).
• Fastboot ROM for Global Redmi 6 Pro is Stable release and needed to flashed under the Fastboot mode of your Redmi 6 Pro (sakura) device.

Here you can download all usb-debuggingxiaomi-redmi-6-cactus Stock Firmwares absolutely free for all models, you can find your own model on this page. You can Upgrade/Downgrade usb-debuggingxiaomi-redmi-6-cactus smartphones with Stock ROM file. First of all, you need to download the official stock ROM from the above given-link flash your device. With Flash file, you can also re-install the Stock Firmware on any Android device. You can also install this firmware zip file when you are facing Software Issue, Boot loop Issue, and much more. You may also repair your usb-debuggingxiaomi-redmi-6-cactus device using Stock ROM Firmware Flash File. The best way to cope with android problems such firmware as bootloop or hang because of the virus.

This is Windows Software, it needs only for Android Stock ROM, Custom ROM, or custom Recovery. You can fix the hard-bricked device using the SP Flash Tool for your Xiaomi Redmi 6. The SP Flash tool also supports all Android brands that have Mediatek (MTK) chipsets. Xiaomi’s entry-level smartphone, Xiaomi Redmi 6A  was launched in June 2018. The phone comes equipped with a 5.45-inch touchscreen display (720 pixels by 1440P). The Xiaomi Redmi 6A houses a 3000mAh non-removable battery and it is a great thing considering the device only has a 720P display. Here you can Download and install Redmi 6 Android Phone device USB (Universal Serial Bus) drivers for free.

• Luckily, for owners of this device, it now has official TWRP support.
• You can download and install the latest and original stock ROM (Firmware) for free.
• To do this, you will first need to install an archive utility like 7-Zip or something similar on your computer.

Xiaomi Redmi 6 Global history Recovery ROM MIUI 9.4.11, Weekly android 8.1 firmware of cereus. Xiaomi Redmi 6 Global history Recovery ROM MIUI 9.4.18, Weekly android 8.1 firmware of cereus. Xiaomi Redmi 6 Global history Recovery ROM MIUI 9.4.25, Weekly android 8.1 firmware of cereus. Xiaomi Redmi 6 Global history Recovery ROM MIUI 9.5.9, Weekly android 8.1 firmware of cereus.

Android phones with Android 8 and above cannot flash with a lower version. Here you will find all the latest Xiaomi firmware for Xiaomi Redmi 6 Pro. If you are looking for Xiaomi Redmi 6 Pro stock ROM firmware, then you are on the right page. Next, go to the MI flashing tool and tap on the Refresh button to see the connected devices. Now download the ADB drivers and Mi Flash tool on your windows from the above mention links.