Hello, yes 2.4 GHz.
As per the instructions, 5 times on, off, it must pulsate, well it does. 2 times already in the middle of pairing it signalled with a constant light, well it also interrupted.
Model Realme LED Wi-Fi Smart Bulb 9 W E27.
Ok, so yes, I took the 3rd phone (realme master edition) and installed the Realme Link app there. Well I followed the instructions, well it paired up. Pretty much, on that 3rd phone I logged into my Realme Link account and it turned out that I could now use the old phone and control the light bulb.
For future reference, I would also recommend checking that Bluetooth and location are enabled on the phone in question. For some reason, as I was testing the other day, I discovered that even the location (?) is needed to work. I don't like it very much personally, as I prefer cloudless solutions, but that's not a discussion for this topic.
A Realme LED Wi-Fi Smart Bulb 9W E27 failed to connect to the Realme Link app, displaying an error during pairing. The bulb was confirmed to be on a 2.4 GHz Wi-Fi network and correctly put into pairing mode by toggling power five times until it pulsated. Despite multiple attempts and testing on different phones, the pairing process stalled and the app appeared to crash. The user was logged into the app, which had previously managed five other devices without issues. Using a third phone with the Realme Link app and logging into the same account successfully paired the bulb, allowing control from the original phone afterward. It was also recommended to ensure Bluetooth and location services are enabled on the phone, as these can be required for successful pairing with some smart devices. Summary generated by the language model.