<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">For the 4G modem options we need to go through FCC, CE, and ROHS certification. Minimising/eliminating the changes to the main board simplifies this (and brings down the exorbitant costs) but if there is anything urgent / necessary, now is the time to do it.<div class=""><br class=""></div><div class=""><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">The goal here is to maintain 100% compatibility with existing OVMS main boards, to keep this is a simple and relatively cheap upgrade of the modem board.</div></div><div class=""><br class=""></div><div class="">So far, I have come up with this minimal list:</div><div class=""><br class=""></div><div class=""><ol class="MailOutline"><li class="">Main board v3.3: Improve soldering of micro USB port. Bigger solder pads, and more solder to secure it better.<br class=""><br class=""></li><li class="">Modem board v1.3: Add support for SIM7600 module.<br class=""><br class=""></li><li class="">Modem board v1.3: Fix support for DTR sleep/awake support.</li></ol></div><div class=""><br class=""></div><div class="">Is there anything else required for this update?</div><div class=""><br class=""></div><div class="">Regards, Mark.</div><div class=""><br class=""></div></body></html>