Dell latitude E5510, the bios page is visualized only with battery connected but probably is not a problem with charging circuit because the motherboard starts without battery . The power adapter is original but it starts also with generic adapter (only with + / - without central pin). I don't know if there is another adapter check on EC . With only AC , it starts but go off after some seconds, with AC and battery or only with battery it starts , the bios page appears after 20 or 30 sec but the progress bar is very slow. This motherboard (UMA fonseca 15 MB 09226-148.4E009.011) has 2 firmware chip (2M and 4M) and ec mec5045 I don't know if the 2M is related to mec. Without cpu and only in AC mode it start and remain on.
I have reprogrammed the two chips but nothing has changed
I have reprogrammed the two chips but nothing has changed
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