Im trying to downgrade and switch to another country's firmware so that i can access different channels that is not accessible by the EAP110-outdoor due to it being a US model and the Philippines support channels 12 and 13 and at my deployment site channels 1,6,11 is congested to the point where at 65rssi cannot transfer any data yet can still connect and 5ghz wifi is not an option because the AP will be used for IoT's  Mainly Tapo L510's, The AP is installed at an elevation of about 6M from ground level at an open area. any suggestion, solution, or help would be appreciated :3