I have been using my FP1 for over two years now. I used the dual SIM option many times so far and it has always worked out perfectly. I also checked this feature after the upgrade to Koala Nut. I am also using the dual sim option on a business trip in SouthEastAsia for data roaming purposes right now. I had all sensors and functionality activated as I had to navigate and I did not care about power consumption at that point, means WiFi, Roaming, GPS, …is switched on.
After two days some troubles began, as the area around the SIM card slot #2 got very hot. The display hangs and I cannot enter my unlock pattern. Sometimes the touch screen was reacting, sometimes it just hang. I decided to let it be and try it the next day. After having it fully loaded I could access it once in the morning, but since then I tried rebooting it several times trying all combinations of inserted cards: no cards, just SD, one SIM, two SIMs…none of them worked so I assume the behavior is purely processor or display related.
Did anybody encounter such an issue before? I want to fix it by trying all software related workarounds. How can I access the phone without using the touchscreen at all to switch off sensors, clear cache and check system current consumption?
all the best,