@Kevin_Z i've change the phone region to united states, then it started to see all band of wifi 5. Alright, i'm waiting for update.

@Kevin_Z Thanks for your replay and suggestion. I've already fixed my phone issue, now it's working with any wifi 5 band. but is there any way to enable the wifi 5's band 4 on Archer T4U V3(EU)...

Some of my phone in our home only supports wifi 5's band 4(149-165) channel, more specifically U-NII-3. but this wifi adapter TP-Link Archer T4U(EU) V3 doesn't support U-NII-3, 5ghz wifi 5 only can...