Hi!
I have 2 sxt lte6 - one with R11e-LTE6_V020 and one with R11e-LTE6_V026.
The first one work flawlessly. The second one often loses link.
Is it possible to downgrade to R11e-LTE6_V020?
Where can I download it?
You can write to support@mikrotik.com and they can install you a v027.
Write them your problem and they can help you.
Official way is only doing a upgrade UP. There are NO official firmware repository