Hello @adityaharindar ,

Welcome to our community.

Let me address each question as best I can:
 

Q1: Is the BE800(US) firmware region-locked, or can the wireless country/region be changed to India?
The country code of a TP-Link router is used in wireless network settings to identify the country or region where the router is located. For US version routers, the country code is fixed to US and cannot be changed to another region like India. This is a regulatory requirement tied to the hardware version.

Q2: Can the 6 GHz channel be manually set to stay within India's allowed 5925–6425 MHz range?
Since the country code is fixed to US on US-version routers, the available channels are governed by US regulations, and it is unlikely you can restrict them to India's specific sub-band. 

Q3: Does the BE800(US) allow manual 6 GHz channel and channel-width selection (160 MHz or 320 MHz)?
You can generally edit wireless settings — including channel and channel width — via the web management page (Advanced > Wireless > Wireless Settings) or the Tether app (Tools > Wireless Settings). However, it's important to note that 160 MHz or 320 MHz bandwidth on the 6 GHz band may not be available in all regions due to regulatory restrictions. Since this is a US model, the available options will follow US regulations.

Q4: Will Wi-Fi 7 features (6 GHz, MLO, 320 MHz, EasyMesh, HomeShield, Tether app) work normally if the US model is used in India?
Whether 6 GHz is available depends on local regulations — you can check if India supports 6 GHz Wi-Fi at: https://www.wi-fi.org/regulations-enabling-6-ghz-wi-fi. Additionally, your client devices (phones, laptops) must also support 6 GHz. As for 320 MHz bandwidth, this may not be available in some regions due to regulatory restrictions, and since the router is locked to US regulations, behavior in India may not align with Indian regulatory requirements. Software features like EasyMesh, HomeShield, and the Tether app should function independently of region, but we cannot confirm this with certainty for all features on a US model used abroad.

Q5: Is it possible to flash India firmware on the BE800(US)?
Firmware builds are typically tied to hardware regions and flashing a different region's firmware is generally not supported or recommended, as it could cause instability or void warranty.

Q6: Would a US-purchased BE800 be eligible for warranty or service support in India?
TP-Link warranty is typically region-specific, meaning a US-purchased unit would ordinarily be serviced under US warranty terms.