If you are in Europe you can fix them at Prague, At PcPraha
https://pcpraha.cz/en/product/repair-asic-mineru-cr-bitmaim/
or website link in English https://pcpraha.cz/en/produkt/antminer-s19-s19-pro-s19j-oprava-hashboardu/
They speak English there many other languages.
They are located in central Europe. So quite fast shipping and no hassle with custom clearances.
This is for after warranty repair.
https://pcpraha.cz/en/product/repair-asic-mineru-cr-bitmaim/
or website link in English https://pcpraha.cz/en/produkt/antminer-s19-s19-pro-s19j-oprava-hashboardu/
They speak English there many other languages.
They are located in central Europe. So quite fast shipping and no hassle with custom clearances.
This is for after warranty repair.
Have you actually tested them or do you work with them or what? the website seems fishy to me, they have hosting in Czech Republic for 3.4 Koruna, that's about 4 cents per kWh, last I checked the average power rate there is above 15-20 cents ,something is not adding up about a mining repair center in Europe where people hardly mine Bitcoin.
Don't get me wrong, not saying they are scammers, I am just thinking out loud.