ASUS Zenfone 11 Ultra Screen Replacement: A Repair Tech’s Deep Dive

When it comes to ASUS smartphones, two series stand out: the gamer-focused ROG Phone line and the more mainstream Zenfone series. We’ve previously disassembled the ROG Phone 8 Pro, and today we’re tackling its sister device — the Zenfone 11 Ultra, released alongside it. The screen on this unit is damaged, so we’re doing a full screen replacement, while taking a close look at the differences — or surprising similarities — between these two ASUS flagships.

Step 1: Getting Inside – Not for the Faint of Heart

First things first, power off the device. To open it up, we use a Magic Self-Heating Pad to soften the adhesive under the back glass. ASUS has gone with a curved glass design, leaving practically no gap between the back cover and the mid-frame — a challenge even for experienced techs.

We used a combination of isopropyl alcohol, suction cups, and a super-thin metal pry card to gain the first opening. It took serious patience. A word of caution: forcing the metal card in too roughly can scratch or crack the back cover, which isn’t cheap to replace. This part of the repair is tedious and delicate — definitely a job best left to professionals if you’re not experienced.

Step 2: Disconnect and Disassemble

Once inside, the first surprise: the internal structure is nearly identical to the ROG Phone 8 Pro. Everything from the placement of the NFC coil and wireless charging pad, down to the shape and layout of the metal shields and flex cables — it’s like looking at a mirror image.

After removing the wireless coil and shielding, we disconnect the battery, the first rule in safe teardown. Then, one by one, we disconnect the flex cables, unscrew the motherboard and daughterboards, and remove various modules like the SIM tray, sub-board, and charging port flex.

ASUS uses mixed-length screws, which makes organization critical. A magnetic project mat helps ensure each screw returns to its rightful place — a lifesaver, especially when a long screw in the wrong spot could easily damage a new screen.

Step 3: Battery, Vibration Motor, Antennas

The battery is glued in tight. We apply alcohol beneath the cell and gently pry it out. ASUS phones are built tough — lots of parts, lots of adhesive, and barely any wasted space. It’s no wonder iFixit rated ASUS phones among the hardest to repair.

With the battery out, we also remove the vibration motor, top speaker, and several antenna modules. Every step reinforces a growing suspicion: this phone is essentially a rebranded ROG Phone. Same screen, same structure, same everything — just a different back cover and logo.

Step 4: Installing the New Screen

With the frame fully cleared, we bring in the replacement screen — and yes, it matches the ROG Phone 8 Pro screen perfectly. If you’re a repair technician or parts supplier, that’s good news. One screen supports multiple models, simplifying stock and reducing costs.

During reassembly, our tip is to loosely place components you’re not sure about, and install confirmed parts first. Only tighten screws after verifying placement, and double-check screw length before committing. Reinstalling in the wrong order can mean having to take everything apart again.

Step 5: Test, Glue, Seal

Once everything is in place, we power on the device to make sure the new screen works. Success — the display lights up and all functions test fine. We apply frame adhesive, press the back cover on, and secure it with rubber bands for a few hours to let the glue cure properly.

Final Thoughts: ASUS, the Quiet Achiever

In a world where brands like OPPO and Xiaomi push out a new phone every few weeks, ASUS seems to be focused and deliberate. Releasing just a few models each year — and reusing internal components — might be a sign of a smaller team, or just smart engineering. Either way, it makes repairs and parts sourcing far easier.

The Zenfone 11 Ultra is a well-built flagship, and while it's not easy to repair, it’s not impossible either — as long as you’ve got the right tools, patience, and a solid parts supplier.

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Thanks for reading!