What's funny is that Huawei does not publicly have a B593 in their product portfolio, apparently their only sales/support channel is via their client Telcos and they don't publish anything except the GPL-code required by GPL v2 license. If you want to know more Huawei Router CPEs, click here.
If you manage to inject an incorrect firmware, it will most likely brick your thing. These steps are also usable for HUAWEI B593s-22 and HUAWEI B593 other models, but the firmware varies. There are number of discussions for getting a new firmware (they even copy/paste stuff from my blog without crediting me as the author), but please carefully find out the exact model before upgrading. In Finland the most common models are the two first ones: u-12 and s-22. According to 4G LTE mall website following models exist: So my previous writings about 3's firmware and Saunalahti's firmware are specific to that exact model. Just to clarify: My exact mode of Huawei 4G router is CPE B593u-12.
