WiFi Antenna Flex Cable
Apple iPhone 11 Pro Max WiFi Antenna Flex Cable Replacement
- Fits
- Apple iPhone 11 Pro Max
- Fixes
- Weak WiFi signal
- Quality
- Brand new, OEM quality
- Fitting
- Professional install
Overview
What this part is
The iPhone 11 Pro Max carries its WiFi signal through a thin antenna flex cable inside the housing. If that flex is torn during a repair, corroded after liquid damage or pinched under a bracket, WiFi can become weak, drop out or disappear altogether.
This part replaces that WiFi signal flex. It is a small part, but it sits deep inside the phone, so the screen has to come off to reach it. If WiFi is greyed out in Settings, the fault is usually on the main board rather than the flex.
Compatibility
Specifications and compatibility
- Part
- WiFi Antenna Flex Cable
- Compatible with
- Apple iPhone 11 Pro Max
- Model numbers
- A2161 · A2218 · A2220
- Does not fit
- iPhone 11 Pro, iPhone 11, iPhone 12 Pro Max or any other model
- Fixes
- Weak or dropping WiFi, very short WiFi range, or a torn WiFi antenna flex
- Does not fix
- Greyed-out WiFi, mobile signal or main board faults
- Quality
- Brand new, OEM-quality wifi antenna flex cable. Tested before dispatch.
- Brand
- Unbranded, compatible with Apple iPhone 11 Pro Max
- In the box
- 1 × WiFi signal flex cable for iPhone 11 Pro Max.
- Colour
- As shown in the photos
- Installation
- Professional installation recommended
- Supplied by
- Supreme Phone Parts Ltd, Manchester, UK
Before you order
Is this the right part?
Signs it needs replacing
- WiFi signal is weak even close to the router
- WiFi keeps dropping out
- The problem started after a screen or battery repair
- The antenna flex is visibly torn or corroded
How to check your model
Open Settings › General › About. The model name should read iPhone 11 Pro Max. Tap the model number to see the A-number (for example A2161).
The iPhone 11 Pro Max has a 6.5-inch screen. The iPhone 11 Pro is smaller, with a 5.8-inch screen.
Professional installation
How a technician fits this part
- Power the iPhone 11 Pro Max off, remove the two pentalobe screws next to the charging port and warm the screen edges to soften the adhesive.
- Open the display carefully and disconnect the battery before anything else.
- Remove the brackets covering the WiFi antenna flex and unclip the old flex.
- Fit the new WiFi flex, seat each connector firmly and refit the brackets and screws.
- Reconnect the display and battery, then test the repair before sealing.
- Apply new adhesive, close the phone and press evenly while it cures.
- Check WiFi range and speed next to and away from the router.
Check that the part matches the device before fitting it or removing any adhesive backing. Once a part has been fitted, it cannot be returned for a change of mind. Faulty parts are always covered.
FAQ
Frequently asked questions
Will this fit my iPhone 11 Pro Max?
Yes, if Settings › General › About shows iPhone 11 Pro Max. It fits models A2161, A2218 and A2220. It does not fit the iPhone 11 Pro or iPhone 12 Pro Max.
Does it fit the iPhone 11 Pro?
No. The iPhone 11 Pro uses a different wifi antenna flex cable. This part is made only for the iPhone 11 Pro Max.
Will this fix WiFi that is greyed out?
Usually not. Greyed-out WiFi on an iPhone 11 Pro Max normally points to a main board fault. This flex fixes weak or dropping WiFi caused by a damaged antenna cable.
Is it made by Apple?
No. It is a brand new, OEM-quality wifi antenna flex cable made to fit the iPhone 11 Pro Max, and every part is tested before dispatch.
Should I fit it myself?
We recommend professional installation. Opening a iPhone 11 Pro Max needs heat, pentalobe and tri-point screwdrivers and new adhesive, and the battery must be disconnected safely.
How quickly will it arrive?
Orders placed before 4pm on a working day are dispatched the same day from Manchester by Royal Mail Tracked. Delivery is free on UK orders over £5. You can also collect from our shop at 33 Moulton Street, Manchester M8 8FQ.
Prepared by the Supreme Phone Parts team, Manchester. Last updated September 2026.