Well, sa case ko, hindi ko ginamit yong white at black.. Ginamit ko lng yong IMEI ng black PLDT modem to my Huawei B315s-936 and it works until now. So mga may signal naman pero walang internet, try nya change yong DNS to Google 8.8.8.8
Yes, I think the PLDT will check the IMEI of the your modem, if it's not PLDT, you will have no signal. So, I changed the IMEI of my openline modem to PLDT IMEI kasi meron akong xtra PLDT modem, yon ginamit ko na IMEI
Hi same rin nangyari sa akin using PLDT sim sa openline na modem... what I did is changed the IMEI of Modem to Smart IMEI. Search lng kau ng Smart PLDT na IMEI. In my case, ginamit ko lng yong IMEI ng SMART PLDT modem ko to my openline Huawei B315s-936.
PS. Dapat then open yong TELNET ng...