Redmi A3 specifications
The Redmi A3 (model 23129RN51H) launched in February 2024 as a low-cost entry phone, powered by the MediaTek Helio G36 with a 6.71-inch HD+ IPS LCD 90Hz display, an 8MP main camera, a 5000mAh battery and a side-mounted fingerprint.
Body & Build
Dimensions are 168.3 × 76.3 × 8.3 mm at 193 g. Plastic frame with a Gorilla Glass 3 front and glass or eco-leather back. Flat display; side-mounted fingerprint in the power button.
Display
6.71-inch IPS LCD at 720 × 1650 (HD+), 90Hz, up to 500 nits (HBM). A glass + LCD + digitizer assembly.
Platform
MediaTek Helio G36 (12nm) with 3–8GB RAM. Storage: 64GB/128GB. Shipped with Android 14 (Go edition) / HyperOS.
Cameras
Single rear — 8MP main (f/2.0) plus a depth sensor. 5MP front camera. 1080p video.
Battery & Charging
5000mAh battery with 10W wired charging, over USB-C 2.0.
Connectivity & Sensors
4G, dual-SIM, Wi-Fi 5, Bluetooth 5.3, GPS. Side-mounted fingerprint, full sensor suite.
Redmi A3 repair pricing
Transparent rates. Pay only after the repair works.
| Repair | From |
|---|---|
| Display replacement (full assembly) | ₹1,999 |
| Display — OLED-grade original | ₹3,199 |
| Glass only (front) | ₹1,399 |
| Battery replacement | ₹1,799 |
| Charging port repair | ₹1,199 |
| Speaker repair | ₹899 |
| Microphone repair | ₹899 |
| Button repair | ₹899 |
| Back glass replacement | ₹1,399 |
| Data recovery | ₹1,499 |
| Motherboard repair | ₹2,399 |
| Camera repair | ₹1,499 |
| Camera glass replacement | ₹799 |
| Water damage treatment | ₹1,599 |
| Wi-Fi / network repair | ₹1,599 |
| Software / OS repair | ₹499 |
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 Redmi A3
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 Redmi A3 repairs — screen, battery, charging port — are completed on-site the same day.
6-month warranty
Every Redmi A3 repair includes a 6-month warranty on parts and labour. No fix, no pay.
Redmi A3 repair — frequently asked questions
How much does Redmi A3 screen replacement cost in Bangalore?
Redmi A3 LCD display replacement starts at ₹1,999. All prices include taxes and free doorstep pickup and drop.
Do you offer a warranty on Redmi A3 repairs?
Yes. Every Redmi A3 repair includes our free XCare+ warranty for up to 6 months on the replaced part, plus our no-fix-no-pay guarantee.
Where is the fingerprint sensor on the Redmi A3?
It uses a side-mounted fingerprint built into the power button. It does not need display calibration — if the button is replaced we simply reconnect the flex and re-enrol your fingerprint.
Professional Redmi A3 repair guide
Professional Redmi A3 Repair Guide
The Redmi A3 opens from the rear cover. With an IPS LCD and a side-mounted fingerprint, display work is forgiving — there is no under-display sensor to calibrate.
Common Redmi A3 Hardware Problems
- Cracked LCD / touch failure
- Battery degradation
- Cracked rear panel
- USB-C charging failure
- Camera faults
- Side fingerprint/power-button faults
- 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 on the LCD.
Opening the Redmi A3
- Heat the rear cover to soften adhesive.
- Lift the back cover with a suction cup and pick around the edges.
- Disconnect the antenna flex.
- Remove shields and disconnect the battery first.
Display Replacement
The LCD + digitizer is supplied as a glass-with-frame assembly. Seat with fresh adhesive and verify touch and 90Hz. There is no in-display fingerprint to align.
Side Fingerprint / Power Button
The fingerprint sensor is integrated into the power button on the frame. If replaced, reconnect the button flex and re-enrol the fingerprint — no optical calibration is required.
Battery Replacement
Disconnect the battery connector and ease out the adhesive pull-tabs (or apply isopropyl alcohol). Fit without bending and re-seal.
Charging Port (USB-C) Repair
The USB-C port is on a lower daughterboard. Clean first; replace the sub-board if charging fails.
Rear Panel Replacement
The rear panel is adhesive-mounted — heated, lifted and re-adhered.
Water Damage
Power off, don’t charge, act fast. Open, disconnect the battery, ultrasonically clean the board.
Repairability Summary
- Easy: battery, USB-C sub-board, loudspeaker, LCD assembly
- Moderate: rear panel, side fingerprint/power button
- Advanced (lab only): motherboard repair
Most Replaced Redmi A3 Parts
LCD display assembly, battery, USB-C sub-board, rear panel, power button/fingerprint flex, loudspeaker.
Post-Repair Testing Checklist
Touch and 90Hz, side fingerprint, camera, charging, speaker, microphone, Wi-Fi, Bluetooth, SIM.
Last updated June 2026.
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