Zenfone 11 Ultra NFC problems - update

[mark_coley]

I posted a few weeks ago about a gradual failure of the NFC function on my phone. It was sent off for repair and is now working (it went from the UK to a Czech repair place, and back again, as there are no UK repair centres at the moment). From the repair sheet it looks like two "prevention issue" things happened adding part number 13ai00n0lf6111 twice, which is some sort of foil thing, and also a "NFC Function error" repair occurred which has the detail "Repair without use a new component - add  / reassembly / reconnect / cleaning."  The sheet also mentioned "Warranty fixing of the back cover (corrected problems mentioned by the customer) and associated parts was performed. Preventative rework was performed."

The torch would go off before it was repaired if you tapped the back panel. It doesn't now. Perhaps something was loose? No other part numbers are listed. Posted here in case anyone else has the same problem.

[cicarulez]

I have the exact same problem as you, for some time now nfc has not worked for me.. I tried to press exactly where you say and it works.. what should I do to get it fixed

[mark_coley]

Assuming you have a two-year guarantee raise a support query, point them to this forum post, and say you have the same problem. In the UK they sent a courier to collect my phone which was then sent to the Czech Republic for repair.  I needed to wrap it and put the label on that was emailed. My second repair for the same issue has just happened and my phone was delivered back today. I'll let you all know if it has been permanently fixed.

[cicarulez]

thanks for the valuable information. how long did it take you to get your device back after repair? hope you got it fixed for good.

[mark_coley]

First repair posted 23/5/2025 and returned 3/6/2025, second repair posted 21/6/2025, returned 3/7/2025. So 11 days and 12 days.

[mark_coley]

Phone, now repaired for the second time, has been working normally in recent days. Repair document states:

"The warranty replacement of the Adhesive tape for correct adhesion of the back cover was performed. Now the back cover fits evenly to the edge of the LCD panel. The problem you mentioned with NFC and the flashlight was solved by applying new ADHESIVE. The back cover became sticky and thus lost contact with NFC and the flashlight, which caused it to not work properly and after pressing the back cover, NFC and the flashlight were functional again."

In summary, the back cover ribbon cable and connectors (for NFC and the flashlight) weren't making good enough contact with the main board connectors to work properly. After the first repair the back cover hadn't been stuck down properly.