MobileRead Forums - View Single Post

wishindo · 10-07-2021, 08:32 PM

With the sunset of 3G in the USA in 4ish months as-of posting, I was thinking about my Kindle Keyboard that has 3G. Surely I could just replace the modem with a 4G capable one, and have the Kindle continue to function as-intended^1 by Amazon, theoretically.

To do so, I would have to find a modem that meets the following specifications:

4G-capable
Mini-PCIe full-length form-factor^2
USB/UART connectivity^3
Usable with only 1 antenna

Drivers could be a problem though, I don't know how Linux handles cellular modems - whether it's one universal driver per interface or if they're device specific.

Anyone have any input?

^1 - When I say as-intended, I mean as a stock unit works currently in terms of downloading books and browsing Amazon and Wikipedia.
^2 - A half-length card in an adapter could work, but would need an antenna extension cable.
^3 - Spec pulled from page 11 of the DTP-600W datasheet. I don't know which interface is used by the kindle, but a modem supporting both shouldn't be a problem, interface-wise at least.

10-07-2021, 08:32 PM	#1
wishindo Member Posts: 22 Karma: 10 Join Date: Oct 2021 Location: Florida, USA Device: Kindle Keyboard w/ 3G (k3g), Likebook Mars (T80D)	Swapping the 3G modem for a 4G modem With the sunset of 3G in the USA in 4ish months as-of posting, I was thinking about my Kindle Keyboard that has 3G. Surely I could just replace the modem with a 4G capable one, and have the Kindle continue to function as-intended^1 by Amazon, theoretically. To do so, I would have to find a modem that meets the following specifications: 4G-capable Mini-PCIe full-length form-factor^2 USB/UART connectivity^3 Usable with only 1 antenna Drivers could be a problem though, I don't know how Linux handles cellular modems - whether it's one universal driver per interface or if they're device specific. Anyone have any input? ^1 - When I say as-intended, I mean as a stock unit works currently in terms of downloading books and browsing Amazon and Wikipedia. ^2 - A half-length card in an adapter could work, but would need an antenna extension cable. ^3 - Spec pulled from page 11 of the DTP-600W datasheet. I don't know which interface is used by the kindle, but a modem supporting both shouldn't be a problem, interface-wise at least.