i did reprogramed bouth bios chips but no change.

the weird thing is, if i let the usb cable connected, after aprox 5 minutes it starts. if i let it sit without power connected it dosn`t start. if it starts and i turn it off it doesn`t start anymore, only if i let it sit for another 5 min connected to usb charger...

only 3 white and orange at the charging port...

These are the mesurements:

PL0701 OL
PL1101 77,8
PL0901 19,7
PL0902 19,7
PL1001 19,7
PL0401 OL
PL0201 OL
PL0202 OL
PL0601 59,8 - NO RAM, 21,8 - WITH RAM
PL0301 OL
PL0501 OL

Hello,

i have a weird problem with a lenovo T14 that only randomly powers on. All the voltages are present, nothing seems to be shorted, battery charges.

When i press the power button it tries to boot for about 2 seconds thant the usb meter restarts an current draw remains at about 50 mAh. somethimes it boots to windows but very rare.

After the usb meter restarts the power button blinks 3 times.

Could someone please help with any suggestion, what to check.

Thank you