How to change the Bandwidth from 5GHz to 2.4Ghz?

My module is unable to get connect with the mobile as it asking for to change the bandwidth from 5 Ghz to 2.4Ghz . How can I fix this problem?

Hi @baljeetsingh0385! In Android devices, you could go to the Settings App. In Settings, locate the Portable Hotspot setting. In the Portable Hotspot settings, tap on Set Up Portable Hotspot. Here, tap on AP Band, and select 2.4 GHz. This should do the job. Then try to connect the Bolt Wi-Fi module to this 2.4 GHz hotspot. You could refer this link for the same:
In case you have an Apple iPhone, go to Settings, then “More”, then under “Wireless & networks,” go to "Tethering & portable hotspot ,” and tap the “Portable Wi-Fi hotspot” slider to turn it on. Once you’ve done that, go to “Set up Wi-Fi hotspot” to take a look at (or change) your network name, password, and even AP band. Change the AP Band to 2.4GHz. You could refer this link for iOS:

Hope this helps!