Need help to identify the Lenovo chip

[elmo89]

Hi, I need help to identify this chip. I already tried to google the part number but got no result.
Thank you.

[mon2]

http://www.chiangraifix.com/product/...lv50287-lv5028

https://www.badcaps.net/forum/troubl...identifying-ic

[elmo89]

http://www.chiangraifix.com/product/...lv50287-lv5028

https://www.badcaps.net/forum/troubl...identifying-ic

Thank you for replying, and sorry for the late reply. One more question: do you think the chip in the picture attached below is the same?