LG fixes WiFi interference problems with UltraFine USB-C 5K display, new units unaffected

Earlier in the week, we reported that the LG UltraFine 5K display can be effectively unusable if placed near a WiFi router with some kind of radio interference causing the monitor to regularly black out and hang the connected MacBook Pro.

LG has now said that it has identified the issue as a hardware problem and that all new units made after February will be unaffected by proximity to home routers. Existing owners of the UltraFine display, recommended by Apple as the best companion to the 2016 MacBook Pro, will need servicing to add ‘enhanced shielding’ (via Recode).

The need to add ‘enhanced shielding’ affirms speculative theories about the LG 5K display’s flaws that the hardware’s electrics had not been sufficiently isolated.

Initially, LG customer support’s only advice was to move the router 2 meters away from the display, so it’s encouraging to see them roll out a real fix for the issue.

Here’s the full statement from the company, via Recode:

“LG apologizes for this inconvenience and is committed to delivering the best quality products possible so all LG UltraFine 27-inch 5K displays manufactured after February 2017 will be fitted with enhanced shielding,” the company said in an e-mail.

Assuming LG has fixed the issue effectively, all new 5K UltraFine displays sold should work as a reasonable person would expect, just like any other computer display.

It is unclear at this time how existing owners of the LG 5K display will be able to retrofit their units with the ‘enhanced shielding’ other than the fact that LG says it is possible.

The UltraFine display is currently being sold at a 25% discount on Apple’s website, as part of the company’s USB-C sale to help Mac users transition to the new standards.

This sale runs through March 31st, after being extended, so if you have been hesitating to buy one of these screens because of the problems with the initial manufactured units, you’ll have approximately one month to buy a new 5K display at a discount that includes the ‘enhanced shielding’ out of the box.

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