Now Reading: Xiaomi Redmi Note 7 Pro Battery Replacement Guide (Redmi Note 7, BN4A)
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Xiaomi Redmi Note 7 Pro Battery Replacement Guide (Redmi Note 7, BN4A)
Xiaomi Redmi Note 7 Pro Battery Replacement Guide (Redmi Note 7, BN4A)
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In this guide, we will show you how to replace the battery on the Xiaomi Redmi Note 7 and Redmi Note 7 Pro smartphones.
Both devices share a very similar internal design, so this battery replacement guide is fully compatible with Redmi Note 7 and Note 7 Pro models.
Over time, smartphone batteries degrade and may cause issues like fast draining, random shutdowns, overheating, or charging problems. Replacing the battery is one of the most effective ways to restore your phone’s performance and extend its lifespan.
This step-by-step DIY guide is beginner-friendly if you follow the instructions carefully and use the proper tools.
Before You Begin
Compatibility and Model Numbers
- Xiaomi Redmi Note 7
- Xiaomi Redmi Note 7 Pro
- Xiaomi Redmi Note 7s
M1901F7G, M1901F7H, M1901F7I, M1901F7S, M1901F7S
Reasons for Battery Replacement
You may need to replace the battery on your Redmi Note 7 or Note 7 Pro if you experience:
- Battery draining very fast
- Phone shutting down unexpectedly
- Device overheating during normal use
- Phone not charging properly
- Battery swelling or physical deformation
- Phone only works while plugged in
Replacing the battery can significantly improve battery life and overall phone performance.
Repair Difficulty
Difficulty Level: ⚠️⚠️⚠️☆☆ (Moderate)
- Requires heating and adhesive removal
- Involves internal connectors and screws
- No soldering required
Recommended for users with basic mobile repair experience or careful first-time DIYers.
Tools Required
- Mobile phone heating pad or hairdryer/heat gun
- Plastic pry tool / card pry
- Suction cups
- Phillips #00/#000 screwdrivers
- Tweezers (for connectors)
- B7000 glue or double-sided adhesive (for back cover)
- Rubber bands or bonding clips to secure the back cover
How to Find Tools and Parts
- Heating pad – https://amzn.to/3H0tHzJ
- Portable Heat Gun – https://amzn.to/4mszih1
- Clamps https://amzn.to/3GYJT4w
- STREBITO 142 Piece Repair Tool Kit https://amzn.to/3UO1jUx
- Glue | Adhesive https://amzn.to/46exVxe
- Compatible Parts –
- Battery – https://amzn.to/4rml5ow
- Screen – https://amzn.to/4bY3w9D
- Other Parts – https://amzn.to/4rjlY18
- Silicone Work Repair Mat https://amzn.to/45Emz5l
Important Safety Notes Before You Start
- Power off the phone completely
- Remove the SIM tray
- Work on a clean, static-free surface
- Be gentle with flex cables and connectors
- Avoid puncturing or bending the battery
✅ Protect Your Redmi Not 7/7 Pro
- Screen Protector Glass For The Screen https://amzn.to/4bimOX7
- Best Cases For Your device https://amzn.to/49ZPsK6
Step-by-Step Xiaomi Redmi Note 7 / 7 Pro/7s Battery Replacement
Step 1: Power Off and Remove SIM Tray
Turn off the phone completely and remove the SIM tray using a SIM eject tool.
Step 2: Heat the Back Cover
Place the phone back-cover side down on a heating pad.
Select the mobile phone heating option and allow it to heat fully.
Alternative: You can use a heat gun or hairdryer to soften the adhesive.
Step 3: Open the Rear Cover
Once heated:
- Use a suction cup to create a small gap between the frame and rear cover
- Insert a plastic card or pry tool
- Carefully cut the adhesive around the edges
⚠️ Be gentle — the fingerprint sensor cable is connected to the back cover.
Step 4: Disconnect Fingerprint and Battery
- Remove the bracket by undoing three screws
- Disconnect the battery connector
- Disconnect the fingerprint sensor flex
- Fully remove the back cover
Step 5: Disconnect Display and Main Flex Cables
- Undo the screw holding the bracket
- Remove the bracket
- Disconnect the LCD flex and main flex connectors from the logic board
Step 6: Remove Speaker Cover
- Undo eight screws securing the loudspeaker cover
- Remove the speaker module from the body
Step 7: Remove the Old Battery
- Loosen the adhesive tabs at the bottom of the battery
- Gently pull the adhesive strips using fingers or tweezers
- If adhesive is strong, apply gentle heat
- Carefully pry under the battery to release it
⚠️ Never bend, puncture, or force the battery.
Step 8: Clean the Battery Area
Remove leftover adhesive and clean the surface to ensure proper bonding for the new battery.
Step 9: Install the New Battery
- Place the new battery into position
- Secure it with fresh adhesive
Step 10: Reassemble the Phone
Follow the reverse order:
- Install speaker cover and add eight screws
- Connect LCD flex and secure bracket
- Connect main flex cable
- Connect fingerprint sensor flex
- Connect battery connector and install the bracket with three screws
Step 11: Seal the Back Cover
Before installing the back cover:
- Make sure adhesive is strong
- Use B7000 glue or new double-sided adhesive if needed
- Press the back cover firmly into place
Use bonding clips or rubber bands to hold the cover tightly for some time.
Step 12: Final Check
- Insert SIM tray
- Power on the device
- Test charging, fingerprint sensor, speaker, and display
Frequently Asked Questions (FAQ)
Q1: Is this guide compatible with both Redmi Note 7 and Note 7 Pro?
Yes. The internal layout and battery replacement process are almost identical for both models.
Q2: Do I need to replace the adhesive after opening the phone?
Yes. Replacing or reinforcing adhesive ensures the back cover stays secure.
Q3: Will replacing the battery delete my data?
No. Battery replacement does not affect your data.
Q4: How long does the battery replacement take?
Around 30–45 minutes, depending on experience.
Q5: Can I use a third-party battery?
Yes, but always choose a high-quality, compatible battery for safety and performance.
Troubleshooting (After The Repair)
Q: The phone does not turn on after replacing the battery. What should I do?
A: If the device does not power on after the battery replacement, first ensure that the battery connector is properly seated on the logic board. A slightly loose connection can prevent the phone from booting. Next, check that the LCD display flex cable is securely connected, as the phone may appear dead if the screen is not connected correctly. Finally, connect the charger and leave the phone charging for at least 10–15 minutes before attempting to power it on again.
Q: The fingerprint sensor is not working after reassembly. How can this be fixed?
A: This issue usually occurs if the fingerprint sensor flex cable was not connected properly during reassembly. Carefully open the back cover again and inspect the fingerprint connector. Reseat the connector firmly and make sure the flex cable is not bent, torn, or trapped under the back cover. Once reconnected correctly, the fingerprint sensor should start working normally.
Q: The phone heats up unusually after the battery replacement. What could be the cause?
A: Unusual heating after battery replacement can be caused by an improperly installed or low-quality battery. Make sure the battery is compatible with the Redmi Note 7 or Note 7 Pro and that it is positioned correctly in the housing. Also, check that no adhesive or tape is pressing against nearby components. If the heating continues, remove the battery and recheck the installation.
Q: The back cover does not stick properly after closing the phone. What should I do?
A: If the back cover feels loose, the old adhesive may no longer be effective. Clean off all remaining adhesive residue from both the frame and the back cover. Apply fresh double-sided adhesive or B7000 glue evenly around the edges. After closing the back cover, use bonding clips or rubber bands to apply gentle pressure and allow the adhesive to cure properly.
Q: The new battery drains faster than expected. Is this normal?
A: Fast battery drain after replacement can be normal during the first few charge cycles. It is recommended to calibrate the new battery by charging it to 100%, then using the phone until it shuts down, and charging it fully again. If the issue persists, check for background apps or software updates that may be consuming excess power.
Q: The phone charges but the battery percentage does not increase correctly. What is the solution?
A: This issue can occur if the battery connector is not fully seated or if the battery calibration is incorrect. Open the phone and confirm the battery connector is properly connected. Then, perform a full charge and discharge cycle to recalibrate the battery indicator.
Final Thoughts
Replacing the battery on your Xiaomi Redmi Note 7 or Note 7 Pro is a cost-effective way to bring your phone back to life. With proper tools, patience, and this guide, you can complete the repair safely at home.
We hope you enjoyed this repair guide 💙
If you have any questions, drop them in the comments.
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