Project

General

Profile

CellularModem » History » Revision 6

Revision 5 (Denis 'GNUtoo' Carikli, 02/15/2020 12:38 AM) → Revision 6/26 (Denis 'GNUtoo' Carikli, 02/15/2020 12:40 AM)

h1. CellularModem 

 If you are new to modems, or to the hardware and software architecture used in smartphones and tablets, it's a good idea to start from the "freedom-privacy-security-issues article":https://replicant.us/freedom-privacy-security-issues.php . 

 Once this is done, there are more documentation on various aspects of the Cellular modem, from the protocol to implementations details. 

 * [[BackupTheEFS]]: The EFS is a partition that contains modem data like the IMEI. If that partition is lost or corrupted, the modem doesn't work anymore, so be sure to backup it. 
 * [[QMI]]: This modem protocol is used at least in the [[GalaxyS3I9305|Galaxy S 3 4G (GT-I9305)]] and the [[GalaxyNote2N7105|Galaxy Note II 4G (GT-N7105)]] 
 ** [[QMI-RIL]]: An attempt to implement the [[QMI]] protocol. The code can initialize the modem. 
 ** [[oFono-RIL]] also has an implementation of the [[QMI]] protocol that can be used on Replicant. This is now the route chosen by the Replicant project. 

 TODO: This list child pages but it doesn't have any explanation of the pages 

 {{child_pages()}}