Lenovo ideapad FLEX 4 User Manual

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Lenovo ideapad FLEX 4-1470/ideapad FLEX 4-1435/ideapad FLEX 4-1480/ideapad
FLEX 4-1570/ideapad FLEX 4-1580
FRU replacement notices
Thissection presentsnoticesrelatedtoremoving andreplacingparts. Read
thissectioncarefullybeforereplacinganyFRU.
Screw notices
Loosescrewscancause areliability problem.IntheLenovocomputer,this
problemisaddressedwithspecialnylon-coatedscrewsthathavethefollowing
characteristics:
• Theymaintaintightconnections.
• Theydonoteasilycomeloose,evenwithshockorvibration.
• Theyarehardertotighten.
• Eachoneshouldbeusedonlyonce.
Dothefollowingwhenyouservicethismachine:
• Keepthescrewkitinyourtoolbag.
• CarefullyremovescrewsforreusewhenreplacingFRUs.
• Useatorquescrewdriverifyouhaveone.
Tightenscrewsasfollows:
• Plastic to plastic
 Turnanadditional90°afterthescrewheadtouches thesurface ofthe
plasticpart:
more than 90°
(Cross-section)
• Logic card to plastic
 Turnanadditional180°afterthescrewheadtouchesthesurfaceofthe
logiccard:
more than 180°
(Cross-section)
• Torque driver
 Ifyouhaveatorquescrewdriver,refertothe“Torque”columnforeachstep.
• Makesurethatyouusethecorrectscrews.Ifyouhaveatorquescrewdriver,
tightenallscrewsrmlytothetorqueshowninthetable.Carefully remove
screws for reuse when replacing FRUs. Make sure that all screws are
tightened rmly.
• Ensuretorque screwdriversarecalibratedcorrectlyfollowing country
specications.

Lenovo ideapad FLEX 4 Specifications

General

Graphics	Intel HD Graphics 520
Display	14" FHD (1920 x 1080) IPS Multi-touch
RAM	16GB DDR4
Storage	512GB SSD or 1TB HDD
Operating System	Windows 10 Home
Ports	2 x USB 3.0, 1 x USB 2.0, HDMI, Audio Combo Jack
Wireless	Wi-Fi 802.11ac, Bluetooth 4.0