New Battery Bad / Dead already?Hi everyone! I just tried replacing the battery on my surface pro 4 and it is not turning on anymore. I suspect the new...
Camera displays/flashes partly purple and sometimes crashesHi everyone, I recently bought a used iPhone 4s. Now I have the following problem: Sometimes when I open the camera app,...
Answer to "New Battery Bad / Dead already?"Yes, there is supposed to be a voltage (about 6,6 - 8,4V) between the pos and neg terminal of the flatcable pads of the battery even when disconnected. On careful inspection I noticed a solder bridge between two pins of the BQ40Z50 IC on the battery’s own pcb. Removing the bridge resultet in finally getting an output on the main terminals. So I was sent a defective after market battery.