Redmi 12C Problems: 100% Fix Guide

Is your phone lagging or battery draining? Here is the ultimate 15-step MIUI 13 optimization guide.

15 Steps

5000 mAh Fix

4 Issues

MIUI Optimized

The Redmi 12C is a budget king with a large display and battery. However, the MediaTek Helio G85 can struggle with heavy apps, causing lag, heating, and battery drain.

Your phone is good; it just needs some cleanup. Follow these steps to make your Redmi 12C run smoothly.

Problem	Diagnosis	Fix Difficulty
App Lag	Memory Extension	Easy
Battery Drain	Bloatware	Medium
Display Tint	Reading Mode	Easy

Diagnostic Hub

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App Lag

Fixing slow app opening and freezing.

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Battery Drain

Optimizing 5000mAh for 2-day use.

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Display Tint

Fixing yellow/warm screen issues.

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Heating

Cooling down the Helio G85.

1. Fixing Slow Performance & Lag

The G85 is an entry-level chip. It needs free RAM to breathe.

Steps 1-3: Speed Boost

Memory Extension: Go to Settings > Additional Settings > Memory Extension. Set it to 2GB. Don't max it out to 5GB as it slows down the eMMC storage.
Clear Cache: Use the "Security App" > Cleaner daily. It removes temporary files that clog the system.
Lite Apps: Use "Facebook Lite" and "Instagram Lite" instead of full versions. They use less RAM and battery.

2. Solving Battery Drain

MIUI 13 has ads and background processes that eat battery.

Steps 4-6: Power Saving

Remove Ads (MSA): Go to Passwords & Security > Authorization > msa. Revoke it. This stops system ads from draining data and battery.
Ultra Battery Saver: Use this mode (in Battery settings) when you are under 20%. It turns off everything except calls and messages.
Autostart: Go to Apps > Permissions > Autostart. Disable it for all apps except WhatsApp. This stops apps from launching themselves.

3. Fixing Yellow Screen Issue

If your screen looks yellowish or dull, it's a settings issue.

Steps 7-9: Color Fix

Reading Mode: Check Control Center. Ensure "Reading Mode" is OFF. It adds a yellow filter to protect eyes.
Color Scheme: Go to Display > Color Scheme. Set it to "Saturated" for vibrant colors or "Standard" for accurate white balance.
Dark Mode: Enable Dark Mode. It looks better on the LCD screen and reduces eye strain.

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Redmi Tip: Double tap to wake is useful, but turn off "Raise to Wake" to save battery from accidental wake-ups in pocket.

4. Cooling Down the Phone

The plastic back traps heat. Let's manage it.

Steps 10-12: Thermal Control

Remove Case: If charging or gaming, remove the TPU case. It acts as an insulator.
Game Turbo: Add games to "Game Turbo" app. It optimizes background tasks to reduce CPU load and heat.
Location: Turn OFF GPS/Location when not using Maps. It's a major heat generator.

Warning: Use the 10W charger provided. The Redmi 12C supports only 10W charging via Micro-USB. Faster chargers won't speed it up but might heat it.

Additional Maintenance (Steps 13-15)

Step 13 (Uninstall Bloatware): Remove pre-installed games and apps you don't use. Long press icon > Uninstall.
Step 14 (Restart): Restart your phone every 2 days. Budget phones need a fresh start often.
Step 15 (Update): Check for MIUI updates. Xiaomi releases patches for "System Stability" frequently.

Is Your Redmi 12C Fixed?

The Redmi 12C is a reliable daily driver. With these tweaks, you get the best battery and performance for the price.

Got a long battery life now? Share your stats below!

Redmi 12C: Professional System Harmonization