Note: We may earn commissions (at no cost to you) if you buy through links on our site. Learn more.

harold Snelling

Why does invalid certificate keep coming up oon my Doro 6520 when switching on , I delete it each time

Doro 6520 flip  an anoying message persists coming up on my phone after not being used for a while  telling me that it has no certificate ,    phone works perfectley well apart from that,

Not the answer you were looking for?