No, it is not possible to make a non-5GHz compatible phone 5GHz compatible through software updates or modifications. The ability to connect to a 5GHz network is determined by the hardware components within the phone, specifically the Wi-Fi chipset. If a phone does not have the necessary hardware to support 5GHz frequencies, it cannot be upgraded to become 5GHz compatible. **

The number of RAM slots in a computer can vary depending on the motherboard. Some motherboards have 2 RAM slots, while others have 4. It is important to check the specifications of the specific motherboard to determine the number of RAM slots available. Additionally, some high-end motherboards may have even more than 4 RAM slots for increased memory capacity. **

The better formation between 4-2-2-2 and 4-4-2 depends on the team's style of play and the strengths of the players. The 4-2-2-2 formation provides more attacking options with two strikers and two attacking midfielders, but it may leave the defense vulnerable. On the other hand, the 4-4-2 formation offers a more balanced approach with four midfielders providing both defensive and attacking support, but it may lack creativity in the final third. Ultimately, the effectiveness of each formation depends on how well it suits the team's tactics and the abilities of the players. **

The 5GHz WLAN may not be working due to interference from other electronic devices operating on the same frequency band, such as microwaves or cordless phones. Additionally, the distance between the device and the router may be too far for the 5GHz signal to reach effectively. It is also possible that the 5GHz band is disabled on the router settings or that the device trying to connect does not support the 5GHz frequency. Checking these factors and adjusting settings accordingly can help troubleshoot and resolve the issue with the 5GHz WLAN not working. **

The 5GHz hotspot may not be working due to several reasons such as interference from other electronic devices operating on the same frequency, distance from the hotspot being too far, or the device not supporting the 5GHz frequency. Additionally, there could be a configuration issue with the hotspot settings or the device itself. It is recommended to troubleshoot by checking the device compatibility, adjusting the settings, and ensuring there is no interference from other devices. **

Without more information, it is impossible to determine if 2 out of 4 RAM slots are occupied. To find out, you would need to physically inspect the computer or check the system information to see how many RAM slots are in use. If you have access to the computer, you can open it up and visually inspect the RAM slots to see if they are occupied. Alternatively, you can use system information tools to check how many RAM slots are in use. **

It is generally recommended to install RAM modules in slots 2 and 4 on most motherboards. This configuration allows for better dual-channel memory performance, which can improve overall system speed and efficiency. Placing the RAM modules in slots 1 and 3 may not fully utilize the dual-channel capabilities of the motherboard, potentially leading to slightly slower performance. **

The 5GHz WLAN may not be displayed for a few reasons. One possibility is that the device you are using to search for the network does not support 5GHz frequencies. Another reason could be that the 5GHz band is disabled on the router or access point. Additionally, there may be interference or signal strength issues that are preventing the 5GHz network from being detected. It's also possible that the 5GHz network has a different SSID (network name) than the 2.4GHz network, so it may be listed separately. **