Amazon Blocks App Sideloading on 2 Fire TV Stick Models With Vega OS

Q: Will Amazon force its new locked-down system onto older Fire Stick models?

No. Based on Amazon’s stated device policy and the reporting around Vega OS, the company is not expected to push the new locked-down system onto older Fire Stick models. The key reason is technical and policy-based: Amazon has said it does not upgrade existing Fire TV devices to a new major operating system version. Older sticks that shipped with Android-based Fire OS are therefore expected to stay on Fire OS rather than be converted to Vega OS. Reporting on the rollout says the shift applies to new hardware, not legacy devices. That matches Amazon’s current product strategy. Vega OS has already appeared on newer models such as the Fire TV Stick 4K Select and the 2026 Fire TV Stick HD, and reports say future Amazon-branded Fire TV sticks will use Vega. At the same time, existing Android-based Fire TV devices remain on sale or in use and are still being supported, including with security updates for years. That does not mean older Fire Sticks will remain untouched. Amazon has already tightened enforcement against piracy on existing Fire OS devices, including blocking some apps linked to illegal streaming, even when sideloaded. So owners of older sticks may still see restrictions through app-level or security updates, but that is different from having the entire operating system replaced with Vega. For users who want sideloading and broader Android app compatibility, older Fire OS sticks are likely to remain the better option for as long as Amazon continues supporting them.

3 articles · Updated · Boy Genius Report · Jun 30

Amazon’s 2026 Fire TV Stick HD and Fire TV Stick 4K Select are the two current Fire TV models that cannot sideload apps because they run the new Vega OS.
Vega OS is Linux-based and was built to block third-party software installs, unlike Android-based Fire OS, which still allows sideloading on older Fire TV hardware.
The distinction matters most for the Fire TV Stick HD, where two versions are on sale: only the older Wi-Fi 5 model still uses Fire OS and supports sideloading.
All other current Fire TV products—including Fire TV Cube devices and Fire TV smart TVs from brands such as Hisense, TCL and Insignia—still use Fire OS for now.
Amazon has said the shift reflects malware and piracy concerns, and future Fire TV refreshes could extend Vega OS to more devices, pushing sideloading users toward Android-based alternatives.