ASUS Zenfone 10 SIM Card Reader Replacement Guide

If your ASUS Zenfone 10 can’t read SIM cards, don’t panic!
This step-by-step guide will walk you through replacing the SIM reader sub-board and getting your phone back to working perfectly.

🧰 Tools You’ll Need

PolarTech Magic Self-Heating Pad (or a regular heat source)
Polar Tech Phone Repair Toolkit (Suction cup, Tweezers, Spudger, Precision screwdriver set)

⚙️ Step-by-Step Repair Guide

Step 1: Remove the Back Cover 🛠️

use the PolarTech Magic Self-Heating Pad to heat the back cover for about 10 minutes to soften the adhesive.

Use a thin blade to create a small gap between the back cover and the frame,and drop a bit of alcohol into the gap to weaken the adhesive.

Carefully slide a plastic pick around the edges until the cover comes off.

Don’t worry — the back cover is plastic, so it’s less fragile than glass.

Step 2: Disconnect & Remove Components ⚡

Unscrew all 15 screws holding the brackets in place

Tip: This is a shorter screw on the top, so keep it separate.
Remove the motherboard bracket.
Always disconnect the battery BTB first for safety.
Take out the sub-board bracket (this piece also acts as the loudspeaker module).

Remove the SIM tray before pulling out the old SIM reader board.

Step 3: Install the New SIM Reader Sub-Board 🔧

Use tweezers to push the small latch back on the frame before installing the new board.

Slide the bottom of the new sub-board in first, then snap the connectors into place.

Reattach the sub-board bracket and reconnect the battery BTB.

Double-check all connectors are secure.

Step 4: Test Before Sealing ✅

Reinstall the motherboard bracket and screw everything back down.
Plug in the charger, power on the phone, and test the SIM card slot.
If everything works, snap the back cover on again.
For a better seal, clamp the phone for a couple of hours to ensure strong adhesion.

📝 Final Tips

Keep your screws organised — one misplaced screw can cause problems later.
If the phone still doesn’t read SIM cards after replacement, check for damaged cables or a faulty motherboard.

By following this guide, you can fix your Zenfone 10 SIM reader issue and save money on repairs.

📩 Need help with your device?

If you have any questions or need further details,contact us or leave a comment below. We’re always happy to help.

👋 See you in the next one!