Lenovo Ideapad 3 NM-C821 - no display after fall

[ktmmotocross]

Hello.
Have this Lenovo Ideapad 3 NM-C821 that suffer fall from meter flatly, and after that have no display. I cannot check another lcd because lcd is glued to back and i dont have spare lcd cable. All voltages are OK.
No video on HDMI and no activity on USB, only voltage. What can be bad?

i was thinking about cracked ball under RAM or CPU

or how to check video when have no display?

[ktmmotocross]

Re: Lenovo Ideapad 3 NM-C821 - no display after fall

no hint on this?

[ktmmotocross]

Re: Lenovo Ideapad 3 NM-C821 - no display after fall

i replace lcd so now im sure it is board problem.
usb key dont even react and fan work normally

[tonzky1975]

Re: Lenovo Ideapad 3 NM-C821 - no display after fall

Try to Reflow the Ram it may have loose contact due to fall.

[mcplslg123]

Re: Lenovo Ideapad 3 NM-C821 - no display after fall

Cracked ball under bga chip is unlikley as lenovo uses glue beneath it. Problem may be elsewhere.