POST /service/update2 HTTP/1.1
Host: get-updates.cloud.remarkable.engineering
Accept: */*
Content-Type: text/xml
Content-Length: 846
Connection: close

<?xml version="1.0" encoding="UTF-8"?>
<request protocol="3.0" version="1.8.1.1" requestid="{acd5ad63-bc1e-46b5-95ff-0aff36fc6612}" sessionid="{e01b7a60-d670-4fac-84df-6268aab42416}" updaterversion="0.4.2" installsource="scheduler" ismachine="1">
    <os version="zg" platform="reMarkable" sp="1.8.1.1_armv7l" arch="armv7l"></os>
    <app appid="{98DA7EF2-4E3E-4784-9DE6-EC931C86ABAB}" version="1.8.1.1" track="Prod" ap="Prod" bootid="{fd598490-43df-4fd8-8d10-189f510cb65b}" oem="RM100-814-36437" oemversion="1.1" alephversion="1.8.1.1" machineid="cdb1bda<---SNIP--->d0b85ff32fd1f" lang="en-US" board="" hardware_class="" delta_okay="false" nextversion="0.0.0" brand="" client="" >
        <ping active="1"></ping>
        <updatecheck></updatecheck>
        <event eventtype="3" eventresult="2" previousversion=""></event>
    </app>
</request>