As Microsoft has closed down almost every Nokia related service and sites, it is now very difficult to get software files of Nokia phones. I have provided a collections of working links and mirrors to download Latest and old firmware files for both Nokia Lumia 822 RM-821 And Lumia 610 RM-885.
Before you proceed any further please check out this blog post i created on installing and downloading of Nokia and Lumia phones Firmwares Here.
Most of the download links are not in english, you can use a browser with authomatic translation i recommend google chrome browser.
Downloading and Flashing a Firmware can help you to reset and recover your phone software at anywhere and anytime without a need for an internet connection.This can really help you if your phone is not responding, frozen, experiencing software related or software update problems.
You can also request for more Lumia 822 RM-821 And Lumia 610 RM-885 with product codes by commenting on this post.
Model: 822 (RM-845)
the Product-below code: 059P3Z8
Model: Lumia 610 (RM-885)
Software Version: 1030.6409.1311.0001
066.0000.8779.12201 under MTS