Realme 12 specifications
The Realme 12 (model RMX3999) launched in March 2024 as a value 4G phone, powered by the MediaTek Dimensity 6100+ with a 6.72-inch FHD+ LCD 120Hz display, a 108MP main camera and 45W fast charging.
Body & Build
Dimensions are 165.6 × 76.1 × 7.7 mm at 188 g. Plastic frame and plastic back with a glass front, IP54 rated.
Display
6.72-inch IPS LCD at 1080 × 2400 (FHD+), 120Hz. As an LCD, display replacement is cheaper than on AMOLED models.
Platform
MediaTek Dimensity 6100+ (6nm) with 8GB RAM. Storage: 128GB/256GB with microSD. Shipped with Android 14 / Realme UI 5.0.
Cameras
108MP single main camera (f/1.8). 8MP front camera. 1080p video.
Battery & Charging
5000mAh battery with 45W SuperVOOC wired charging (50% in ~30 min), over USB-C 2.0.
Connectivity & Sensors
4G LTE, dual-SIM, Wi-Fi 5, Bluetooth 5.3, GPS. Side-mounted fingerprint, accelerometer, proximity.
Realme 12 repair pricing
Transparent rates. Pay only after the repair works.
| Repair | From |
|---|---|
| Display replacement (full assembly) | ₹3,499 |
| Display — OLED-grade original | ₹4,999 |
| Glass only (front) | ₹1,799 |
| Battery replacement | ₹1,499 |
| Charging port repair | ₹999 |
| Speaker repair | ₹899 |
| Microphone repair | ₹899 |
| Button repair | ₹849 |
| Back glass replacement | ₹1,499 |
| Data recovery | ₹1,099 |
| Motherboard repair | ₹1,999 |
| Camera repair | ₹1,299 |
| Camera glass replacement | ₹599 |
| Water damage treatment | ₹1,099 |
| Wi-Fi / network repair | ₹1,299 |
| Software / OS repair | ₹399 |
Prices include genuine-equivalent OEM parts, doorstep service, and a 6-month warranty. Final price confirmed after a free on-site diagnosis.
Why Phone Dudes for Realme 12
Doorstep service
A technician comes to your home or office anywhere in Bangalore. Watch the repair happen — no drop-off, no waiting at a store.
Same-day, 45–90 min
Most Realme 12 repairs — screen, battery, charging port — are completed on-site the same day.
6-month warranty
Every Realme 12 repair includes a 6-month warranty on parts and labour. No fix, no pay.
Realme 12 repair — frequently asked questions
How much does Realme 12 screen replacement cost in Bangalore?
Realme 12 LCD display replacement starts at ₹3,499. As an LCD model it is cheaper to replace than AMOLED phones. All prices include taxes and free doorstep pickup and drop.
Do you offer a warranty on Realme 12 repairs?
Yes. Every Realme 12 repair includes our free XCare+ warranty for up to 6 months on the replaced part, plus our no-fix-no-pay guarantee.
How long does a Realme 12 repair take?
Most repairs — screen, battery, charging port — are completed the same day, with free doorstep pickup and drop across Bangalore.
Professional Realme 12 repair guide
Professional Realme 12 Repair Guide
The Realme 12 opens from the rear cover. Its LCD and plastic body make it cheap and quick to repair.
Common Realme 12 Hardware Problems
- Cracked LCD display
- Battery degradation
- Cracked plastic rear cover
- USB-C charging failure
- Camera faults
- Earpiece/loudspeaker distortion
- Water damage
Tools Required
Phillips screwdrivers, plastic picks and opening tools, suction cup, controlled heat, tweezers, SIM tool. Workshop: hot-air station, isopropyl alcohol, display/back-cover adhesive.
Safety First
Power off, discharge below 25%, remove the SIM tray, ESD protection. Use even, controlled heat.
Opening the Realme 12
- Heat the rear cover to soften adhesive.
- Lift the plastic back with a suction cup and pick around the edges.
- Disconnect the antenna flex.
- Remove shields and disconnect the battery first.
Display Replacement
The Realme 12 uses a fused LCD + digitizer assembly; repairs use a panel or display-with-frame service part. Seat with fresh adhesive and verify touch and 120Hz. The side fingerprint is unaffected.
Battery Replacement
Disconnect the battery connector and ease out the adhesive pull-tabs (or apply isopropyl alcohol). Fit the replacement without bending and re-seal.
Charging Port (USB-C) Repair
The USB-C port is on a lower daughterboard — a common, low-cost Realme 12 repair. Clean first; replace the sub-board if charging fails.
Rear Cover Replacement
The plastic back is adhesive-mounted — heated, lifted and re-adhered. Inexpensive.
Water Damage
Power off, don’t charge, act fast. Open, disconnect the battery, ultrasonically clean the board.
Repairability Summary
- Easy: plastic rear cover, battery, USB-C sub-board, LCD display, loudspeaker
- Moderate: —
- Advanced (lab only): motherboard repair
Most Replaced Realme 12 Parts
LCD display assembly, battery, USB-C sub-board, plastic rear cover, rear camera, loudspeaker.
Post-Repair Testing Checklist
Touch and 120Hz, fingerprint, camera, charging, speaker, microphone, Wi-Fi, Bluetooth, SIM, microSD.
Last updated June 2026.
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