Now very often my 3.5 screen goes white and Cobra stop working (Cobra OEM kit).
So I hooked it up to external power supply running 6.0 Volt, Cobra takes about 350-400mA, but after a while (sometimes just seconds) the screen goes white and Cobra load my powersupply with 1050 mA. The 5V pin in Cobra now only have 2.6 volt.
I look for hot components, IC1 on main-board is hot and also C2 on display-board is to hot.
I also tried to power Cobra (5V in/out pin) with 5.0V, after a short time, screen goes white and Cobra load 1450mA from my power supply.
I can’t see any pattern, sometimes this happens after a few seconds, sometimes after 30 minutes.
Nothing is connected to Cobra.
Did I get a “Friday car”, I can’t develop like this, and absolutely not ask my customer to try it…
I tested to erase Cobra with MFDepoly (Cobra say waiting for debug…). But after 5-6 minutes the screen goes white and Cobra consumes 1100mA, the “C2” component on displayboard is now very hot.
I kill the power and whait for “C2” to cool down. Power on again and Cobra runs for 30 seconds before it goes white again (consumes more power and “C2” gets hot again).