Now Reading: POCO X3 GT Battery Replacement Guide BM57
-
01
POCO X3 GT Battery Replacement Guide BM57
overall usability of your smartphone. In this detailed DIY repair guide from Geardo, you’ll learn how to safely replace the battery on the POCO X3 GT, also known as the Redmi Note 10 Pro 5G from Xiaomi under the POCO lineup.
If your device drains quickly, overheats during charging, randomly shuts down, or struggles to hold power through the day, a battery replacement can significantly extend its lifespan without needing to buy a new phone. This guide is written for beginners and intermediate DIY repairers and explains each step carefully to help you complete the repair safely.
✅ Protect Your POCO X3 GT
Best Premium Protection For https://amzn.to/4aXf2RM
Repair Difficulty
⭐ ⭐ ⭐ ⭐ ☆ (4 / 5 — Moderate Difficulty)
Estimated Repair Time: 40 — 60 Minutes
Device Type: Smartphone
Repair Type: Internal Battery Replacement
Reasons for Battery Replacement
- Battery draining very fast
- Phone shutting down unexpectedly
- Overheating during charging or usage
- Device swelling or lifting back cover
- Slow charging or charging interruption
- Reduced screen-on time after long usage
Before You Begin
Compatibility and Model Numbers
- POCO X3 GT
- Xiaomi REDMI NOTE 10 Pro 5G (China)
Model Numbers : 21061110AG,
Tools Required
- Mobile phone heating pad or hairdryer/heat gun
- Plastic pry tool / card pry
- Suction cups
- Phillips #00/#000 screwdrivers
- Torx (T2/T3/T4) screwdrivers (Region Based)
- Flathead screwdriver
- 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/4cE2oIH
- Screen – https://amzn.to/3OifDox
- Other Parts – https://amzn.to/40iRHDU
- Silicone Work Repair Mat https://amzn.to/45Emz5l
Step-by-Step Battery Replacement Guide
Step 1 — Power Off the Device
Completely power off the phone before beginning any repair. This prevents electrical damage or short circuits during disassembly.
Step 2 — Heat the Back Cover
The rear cover is secured using strong adhesive.
Gently heat around the edges of the back cover until the adhesive softens.
You can use:
- Heating pad (recommended)
- Heat gun
- Hair dryer
If using a heating pad, place the phone back-cover side down and select the mobile phone heating option. Allow the heating cycle to complete.
Step 3 — Remove the Back Cover
Attach a suction cup near the edge of the back cover and gently pull to create a small gap.
Insert a plastic pry card into the opening.
Slowly slide it around the edges to cut through the adhesive.
Take your time to avoid cracking the back glass or damaging internal components.
Carefully lift and remove the rear cover.
Step 4 — Remove Mid-Frame Screws
Remove 16 screws located across the top and bottom sections securing the mid-frame.
Keep screws organized to avoid mixing sizes during reassembly.
Step 5 — Separate the Mid-Frame
Using a plastic pry tool or card:
- Create a small opening between the frame and body.
- Carefully work around the edges.
- Release plastic clips gently.
⚠️ Important: The fingerprint sensor flex cable connects the mid-frame to the phone.
Do not pull the frame suddenly.
Disconnect the fingerprint flex cable first.
Then disconnect the battery connector.
Step 6 — Remove the Battery
Locate the battery adhesive pull tabs.
Loosen adhesive carefully from both sides.
Disconnect the secondary battery connector.
Slowly lift the battery using the adhesive tab.
Avoid bending or puncturing the battery.
Step 7 — Install the New Battery
Place the replacement battery properly into position.
- Secure adhesive strips.
- Connect the secondary battery connector.
Make sure the battery sits flat inside the housing.
Step 8 — Testing Before Reassembly
Reconnect:
- Fingerprint connector
- Battery connector
Power on the device briefly to confirm:
- Device boots normally
- Charging works
- No overheating issues
Turn the phone off again before continuing.
Step 9 — Reinstall Mid-Frame
Place the mid-frame back into position.
Reconnect the fingerprint flex cable securely.
Press around edges to engage plastic clips.
Secure the frame using screws.
Step 10 — Secure Screws
Install the screws back into place to lock the mid-frame securely.
Ensure everything sits flush and properly aligned.
Step 11 — Prepare Back Cover Adhesive
Before reinstalling the back cover:
Check adhesive condition.
If adhesive is weak or damaged:
- Apply B7000 glue, OR
- Install a new double-sided adhesive gasket.
Step 12 — Close the Back Cover
Place the rear cover carefully.
Apply even pressure around edges.
Use:
- Binding clips, OR
- Rubber bands
Leave secured for some time to allow adhesive bonding.
Your battery replacement is now complete.
Frequently Asked Questions (FAQ)
Q1. How do I know my battery needs replacement?
If your phone drains quickly, shuts down randomly, or overheats while charging, the battery health is likely degraded.
Q2. Can beginners perform this repair?
Yes, but patience is required. The fingerprint connector and adhesive removal require careful handling.
Q3. Is heating necessary to open the back cover?
Yes. Heating softens adhesive and prevents glass cracking during removal.
Q4. Should I test the phone before sealing it?
Absolutely. Always test charging and boot functionality before installing the back cover permanently.
Q5. Can I reuse the original adhesive?
Only if it remains strong and clean. Otherwise use new adhesive or glue for proper sealing.
Troubleshooting (After The Repair)
Q1. Phone not turning on after repair?
Check battery connector alignment and ensure it is fully connected.
Q2. Fingerprint sensor not working?
Reconnect the fingerprint flex cable properly. It may not be fully seated.
Q3. Back cover not sticking properly?
Use fresh adhesive or apply B7000 glue evenly around the frame edges.
Q4. Battery draining quickly after replacement?
Perform a full charge cycle:
Charge to 100% → discharge to 10% → recharge fully.
This helps battery calibration.
Q5. Device overheating after repair?
Check for:
- Loose connectors
- Pinched flex cables
- Improper battery placement.
Reopen and inspect if necessary.
Related Guides
